Re: pipeProcess not returning immediately
On Saturday, 26 August 2017 at 06:24:26 UTC, user1234 wrote: On Saturday, 26 August 2017 at 01:13:35 UTC, Johnson Jones wrote: I am running ffplay.exe and my application does not return immediately from pipeProcess. I have to close ffplay for my program to continue execution. No process is asynchronous in std.process. If you don't want to block your program then wrap it in a thread that checks periodically for termination. Either you are wrong or the docks are wrong: https://dlang.org/phobos/std_process.html pipeProcess also spawns a child process which runs in **parallel** with its parent. However, instead of taking arbitrary streams, it automatically creates a set of pipes that allow the parent to communicate with the child through the child's standard input, output, and/or error streams. This function corresponds roughly to C's popen function.
Re: gtkD: events being triggered twice
On Sunday, 6 August 2017 at 18:26:20 UTC, Mike Wey wrote: On 06-08-17 16:58, FoxyBrown wrote: I don't really(my code is a bit more complex) but basically all it boils down to is a UI with some nested widgets (an overlay, an box, and a box and one contains the eventbox which I added those callbacks on. I think that something like https://github.com/gtkd-developers/GtkD/blob/master/demos/gtkD/TestWindow/TestWindow.d should probably work by just adding an eventbox somewhere and adding that code above. If it doesn't exhibit the same behavior then it has something to do with my project and I could try to reduce it to a minimal example. To test i put the label that is on the label page in an event box but that doesn't reproduce the issue. I get just a single event on enter and a single event on leave. Ok, I will try to work on figuring out what is going and and potentially reduce to a test case. It might be on my end. I'm pretty sure I'm not adding You might try a separator though in the event box and might try to add it handling various events(maybe even other events for the event box)... things related to the mouse. Here's the glade code for the event box I'm using 5 True False True 5 True False False name="orientation">vertical Try that when you get some time and see if that changes anything. If it doesn't then it's surely in my code or in the gtk version I'm using(still using msys, I'll update to what you released to see if that fixes it). At least we can narrow it down a little...
Re: gtkD: events being triggered twice
On Sunday, 6 August 2017 at 09:42:03 UTC, Mike Wey wrote:
On 06-08-17 03:25, Johnson Jones wrote:
GtkEventBox - Enter
GtkEventBox - Enter
Down
GtkEventBox - Leave
Up
GtkEventBox - Leave
GtkEventBox - Leave
That is when I move the mouse over the event box then click
then move out out then release.
I would expect
Enter Down Leave Up
The fact that enter and leave are not paired equally is a
problem. Can be worked around but seems like it would be a bug.
the code is simply
ebox.addOnEnterNotify(delegate(Event e, Widget w)
{
writeln(w.getName(), " - ", "Enter");
return true;});
ebox.addOnLeaveNotify((Event e, Widget w)
{writeln(w.getName(), " -
", "Leave");
return true;
});
Do you have an more complete example that i could test.
I don't really(my code is a bit more complex) but basically all
it boils down to is a UI with some nested widgets (an overlay, an
box, and a box and one contains the eventbox which I added those
callbacks on.
I think that something like
https://github.com/gtkd-developers/GtkD/blob/master/demos/gtkD/TestWindow/TestWindow.d
should probably work by just adding an eventbox somewhere and
adding that code above.
If it doesn't exhibit the same behavior then it has something to
do with my project and I could try to reduce it to a minimal
example.
Re: Create class on stack
On Sunday, 6 August 2017 at 02:32:05 UTC, Adam D. Ruppe wrote: On Sunday, 6 August 2017 at 02:19:19 UTC, FoxyBrown wrote: Also, does it do the allocation at compile time(reserve space on the stack for the variable along with all the others or does it "allocate" space on the stack at runtime?... which is slightly slower). compile time. It works like a static array of the appropriate size. though the cost if ti was at runtime is small regardless. I think it is just a register subtract. yeah, I know, but no need for it ;) Still better than the heap but was just curious ;) No need to waste cycles if it's not necessary.
Re: Create class on stack
On Sunday, 6 August 2017 at 02:10:31 UTC, Moritz Maxeiner wrote: On Sunday, 6 August 2017 at 01:18:50 UTC, Johnson Jones wrote: On Saturday, 5 August 2017 at 23:09:09 UTC, Moritz Maxeiner wrote: On Saturday, 5 August 2017 at 17:08:32 UTC, Johnson Jones wrote: using gtk, it has a type called value. One has to use it to get the value of stuff but it is a class. Once it is used, one doesn't need it. Ideally I'd like to treat it as a struct since I'm using it in a delegate I would like to minimize unnecessary allocations. Is there any way to get D to allocate a class on the stack like a local struct? The easy way is through std.typecons.scoped [1]. Here be dragons, though, because classes are reference types. [1] https://dlang.org/phobos/std_typecons.html#.scoped Thanks, I didn't think it created on the stack but it makes sense to do so. See the source [1] as to why: typeof(scoped!T) is a (non-copyable) struct that holds the memory for the T object inside it. The only issue is that it escaping the reference? Yes, don't escape references, that's the reason for my comment: Here be dragons, though, because classes are reference types. [1] https://github.com/dlang/phobos/blob/v2.075.0/std/typecons.d#L6613 I don't think you understand what I'm saying. If I use this method to create a "reference" type on the stack rather than the heap, is the only issue worrying about not having that variable be used outside that scope(i.e., have it "escape")? Obviously since it's on the stack it will be invalid after the function call, but I'm talking about other pitfalls. I don't see any but I want to be sure. Also, does it do the allocation at compile time(reserve space on the stack for the variable along with all the others or does it "allocate" space on the stack at runtime?... which is slightly slower).
Re: gtk get actual pixel height of widget
On Saturday, 5 August 2017 at 15:23:15 UTC, Johnson Jones wrote: I am trying to set positions of widgets automatically. e.g., I have a paned widget and I to set the position of the handle manually based on a percentage of the window. e.g., 0.5 will set the handle midway and both children will have the same height. I 0.2 will set it to to 20%. [...] Sorry, I think I was running my code before the window was actually being shown and I guess these values are not set until the actual display of the window.
Re: gtk arch issues
On Tuesday, 1 August 2017 at 21:03:44 UTC, Mike Wey wrote:
On 01-08-17 22:16, Johnson Jones wrote:
nvm, the file exists. Why it is not being found is unknown.
I did some stuff and it says it is not a valid win32, this is
using that gtk3 runtime I linked to... says it's x64 version
but probably x86.
Would be nice if the error message printed the full path of
what was being loaded so it's quicker to diagnose.
Seems there is a
> ... code ...
which is used, could I just hijack this to set the correct
path based on what version it is compiled under? Would be the
easiest thing, at least as a temporary workaround.
You renamed the gtk DLL's, i assume you simply renamed them,
but to get things working with different names you would need
to build GTK from source, and apply the appropriate patches to
GTK and its make files.
I rebuilt gtkD but obviously not gtk, which I guess was using
searching the dll's the same way that gtkD did.
If you would use a dependency walker on libgtk-3-0.dll you can
see that it depends on basically all the other dll's in the
directory, and by renaming them they can no longer be found.
For libraries that are in both GTK 3 and GTK 2 it might find
the libraries distributed with gtksharp but that would also
fail because of the version difference.
I didn't actually rename, I copied then renamed the copies so
that the originals were still there. The point was to get gtkD to
use different versions, which it did, but I guess gtk had the
same problem with it's versioning where it would simply try to
use whatever it found in the path.
Printing the full path of the library in the error would only
only be possible if we call LoadLibrary with the full path.
It's been a while since i implemented the architecture check
but if i remember correctly there were some issues with that.
Otherwise it might be loaded from one of the other directories
LoadLibrary searches, and then the printed path would be wrong,
making things even worse.
And yes you could hard code the path that is passed to
SetDllDirectory as a work around, but the dll's will need to
have there proper names.
As I stated the last post, everything is working. I reverted back
to the original gtkD so it uses the original names. I only have
one GTK dir in the path at a time now rather than both x86 and
x64. That solved the problem. The only problem that exists now is
that I have to manually swap the installations of gtkx86 and
gtkx64. When I switch from from x86 to x64 and vice versa... not
difficult but I'm sure I'll forget months down the road and waste
time trying to remember what I needed to do.
So, I have dirs like
C:\Gtkx86
C:\Gtkx64
C:\Gtk
where C:\Gtk is a junction that points to either C:\Gtkx86 or
C:\Gtkx64 depend on which arch I'm compiling for. The path only
as C:\Gtk in it so there is no possibility for the dlls to get
mixed up, which is what happens when both architecture versions
are in the path.
I'd like to avoid having to change the junction each time I
decide to test my app in a different architecture. Instead,
having a simple
version(X86)
SetGTKDir("C:\\Gtkx86");
version(Win64)
SetGTKDir("C:\\Gtkx64");
is what I'm after.
Re: It makes me sick!
On Saturday, 29 July 2017 at 21:48:09 UTC, Timon Gehr wrote: On 28.07.2017 23:30, FoxyBrown wrote: because you didn't want to spend 10 minutes to fix a program. You need to realize that the same thing applies to you. There is no "us" vs "you". I.e. if you know it to only be 10 minutes of work, why don't you just fix it yourself? Mike currently has as many commits in DMD as you do, and he is already busy contributing in other ways. EXACTLY! Your problem is that you are taking the you vs me too literal. I am talking about a mentality people have that think that them saving 10 minutes by not implementing something that will save 10 hours(low estimate) for everyone else is a good thing and criticize people when they say there is a better and try to condemn them and continue the status quo that wastes more time.
Re: It makes me sick!
On Saturday, 29 July 2017 at 19:51:30 UTC, Adam D. Ruppe wrote: On Saturday, 29 July 2017 at 19:26:03 UTC, FoxyBrown wrote: Also, equating dmd to an audio program or a clip art program that is designed to load any and all files in it's install dir is moronic too. I like to add files to the dmd install directory to expand its "just works" library. I was bitten by this change too. I'm of the opinion that splitting std.datetime was a waste of time and also that the package.d feature is misdesigned. It should ALSO allow any other file to be passed with the module declaration that matches... you know, like every other module in the language. Why it got this bizarre special requirement is beyond me. If it did, then we could easily enough just leave the old file. But no, it requires the new one, but then prolly on efficiency grounds, doesn't check it first meaning the old one can silently conflict. Ugh. But the fix here is to fix the bizarre package.d design. Don't break the zip for cases like mine where adding files is a key feature of it. I don't mind the issue as long as it is stated clearly what must be done(e.g., simply add "requires cleaned installed directory"). What pisses me off more more than anything is the asinine people defending the behavior as if it is acceptable and that it is the users fault to know that the behavior. Many programs I use can be upgraded without issue by copying over the data files. Dmd did not have this program until recently and so, because it isn't stated it is a problem, how the hell is the user suppose to know that? Specially when it worked correct the first time, the second time, the third time, etc.
Re: It makes me sick!
On Saturday, 29 July 2017 at 19:17:08 UTC, Joakim wrote: On Friday, 28 July 2017 at 22:32:27 UTC, FoxyBrown wrote: [...] What you are suggesting is blatantly idiotic. No software ever made supports simply installing on top of an old installation from a compressed zip or tar file. If you need hand-holding, the installer will wipe the old install before unpacking the new install for you. The zip file is for people who know what they are doing, such as not unpacking on top of the old install. You should just use the installer from now on, not the zip file, if you can't be bothered to remove the old install first. bullshit. Are you a moron? You really think your absolute "No software ever" is logical? I can name many off the top of my head. Have you ever heard the fucking word "portable"? I guess not, go look it up. Please take your jack ass arrogant self somewhere else. Also, equating dmd to an audio program or a clip art program that is designed to load any and all files in it's install dir is moronic too.
Re: dmd can't build gtk x64
On Friday, 28 July 2017 at 22:45:58 UTC, FoxyBrown wrote: Error: can't run 'C:\VS\VC\Tools\MSVC\14.10.25017\bin\HostX64\x64', check PATH It is trying to run some x64.exe/com/bat file... why? What is this file? simply doing dmd -m64 build.d Works fine for x86. I was able to get this to work by copying all the required lib's to the lib dir from the windows sdk(liburct.lib, shell32.lib) and copying link.exe to x64. The program compiles, but when ran, I get the error object.Exception@generated\gtkd\gtkd\Loader.d(125): Library load failed (libgdk-3-0.dll): is not a valid Win32 application. which I assume is due to the fact that I have x86 gtk installed(I think, as I thought I installed the dual package... can't seem to find x64 gtk3+ standalone).
Error 1: Previous Definition Different : _D3gtk3All12__ModuleInfoZ (gtk.All.__ModuleInfo)
After upgrading to latest dmd and having to rebuild gtk, I now get the following error Error 1: Previous Definition Different : _D3gtk3All12__ModuleInfoZ (gtk.All.__ModuleInfo) in my apps that were previously working(no changes, opened up old app and tried to build it and it didn't work). All I did was upgrade dmd2. So tired of D and it's crap ;/ So unstable in so many ways. About 10% as productive overall than other languages I've used. It's error messages are about as helpful as a rock.
dmd can't build gtk x64
Error: can't run 'C:\VS\VC\Tools\MSVC\14.10.25017\bin\HostX64\x64', check PATH It is trying to run some x64.exe/com/bat file... why? What is this file? simply doing dmd -m64 build.d Works fine for x86.
Re: It makes me sick!
On Friday, 28 July 2017 at 21:35:01 UTC, Anonymouse wrote: On Friday, 28 July 2017 at 21:23:22 UTC, FoxyBrown wrote: So, the program, if it is updated shouldn't use the mp3's then. Why the hell is the program that you say was upgraded to use the ogg still searching and using mp3's? You are trying to make up reasons why it shouldn't work... at least come up with valid reasons. I'm sorry if I'm not expressing it in a way that agrees with you but you're looking at the wrong side of the example. You're pasting one set of files onto another and expect the software to somehow know to ignore some of them. YES! EXACTLY! I AM EXPECTING THE SOFTWARE, WHICH IS WHAT THE PROGRAMMER CREATED AND HANDLES THE FILES TO ACTUALLY KNOW WHAT THE HELL IT IS DOING! I'm sorry if that is too complex to understand. If the software has some build in design that makes it use arbitrary files in a specific way like it does with std.datetime, then it should have sanity checks. After all, who the hell knows more about dmd using std.datetime and how it uses it and such, the end user or the programmer of dmd? You are expecting the end user, who generally knows very little to do the dirty work instead of having the programmer who is suppose to know what the fuck is going on to add sanity checks, useful error messages, etc. Ali suggested a very reasonable solution that would have solved this problem and you guys are against it and offer no solution to the issue. It all boils down to laziness. Too lazy to spend the time to add code that makes dmd more robust. Simple as that. It's not that it can't be done, like you bone-heads are claiming, but that you simply don't want to do it. Another very simple solution: Before the zip file is generated, a listing of all the files in the dmd installation that are used(which should be all of them) is taken. This file then is parsed by dmd and only those files in the dmd dir that are in the list are used. This would also have avoided the issue and future issues. Any stale files in the dir would simply be ignored. But, again, too much work. Keep making the end users deal with these problems instead of doing your due diligence. That we, we have something to waste our time with in these forums instead of real problems.
Re: It makes me sick!
On Friday, 28 July 2017 at 01:10:03 UTC, Mike Parker wrote: On Friday, 28 July 2017 at 00:28:52 UTC, FoxyBrown wrote: You are not being very logical. The zip file as N files in it. No matter what those files are, it should be a closed system. That is, if I insert or add(not replace) M file to the directory structure it should not break D, period! That's *not* what happened here. Jonathan explained it quite well. std.datetime was refactored into a package, its contents split into new modules. When you import a module foo, dmd looks for: 1. foo.di 2. foo.d 3. foo/package.d When it finds one, it stops looking. It's not an error for all three to exist. Your error came because it found std/datetime.d, but you linked to a library that included symbols for std/datatetime/package.d. It's not the compiler's responsibility to error in that case. It's your responsibility to properly install. Why? Because NO file in the zip should be referencing any file not in the zip unless it is designed to behave that way(e.g., an external lib or whatever). If an old external program is referencing a file in dmd2 that isn't in the new zip it should err. Why? Because suppose you have an old program that references some old file in dmd2 dir and you upgrade dmd2 by extracting the zip. The program MAY still work and use broke functionality that will go undetected but be harmful. Why? Because dmd.exe is reference a file it shouldn't and it should know it shouldn't yet it does so anyways. It really has nothing to do with the file being in the dir but that dmd is being stupid because no one bothered to sanity checks because they are too lazy/think it's irrelevant because it doesn't effect them. That's unreasonable. I should be able to put any extra files anywhere in the dmd2 dir structure and it should NOT break dmd. There are numerous applications out there that can break if you simply overwrite a directory with a newer version of the app. DMD is not alone with this. You should always delete the directory first. It's precisely why the compiler does so. So, that proves nothing. You are simply ok with wasting the end users time... you should grow up and take responsibility for what you release. Your logic is not sound mathematically unless you think it's ok to waste end users time: There is 1 programmer, you and N end users of your app. Ok? got that? Very simple mathematics. Now, suppose you decide it is not worth your 10 mins to fix a problem or add sanity checks or robustness to your program and it effects 1% of the users of your app(we'll use a low percentage just to give you a fighting chance, which you don't deserve but we'll allow it). Now, suppose that wastes only 10 mins of the end users time(again, we'll low ball the number because usually it is much greater since the end user is not familiar with out the program works like the creator of that program is). This means that 10*0.01*N minutes are wasted overall of the human race because you didn't want to spend 10 minutes to fix a program. If 1 users use your app, that is 1000 minutes wasted ~= 17 hours. And that is a low estimate. So, just because you want to save 10 minutes you've wasted 17 hours of human life... what an investment! That is your mentality. You should run for US President! Your mentality fits right in with how the US handles it's money. Remember how much of your own life has been wasted on fixing other peoples mess and maybe you might realize how bad it is... probably not though, maybe when your on your death bed you might get a spark of sanity... but then it will be too late and pointless.
Re: It makes me sick!
On Friday, 28 July 2017 at 13:55:33 UTC, Anonymouse wrote: On Friday, 28 July 2017 at 05:14:16 UTC, FoxyBrown wrote: If dmd breaks in strange and unpredictable ways IT IS DMD's fault! No exceptions, no matter what you believe, what you say, what lawyer you pay to create a law for you to make you think you are legally correct! You can make any claim you want like: "The end user should install in to a clean dir so that DMD doesn't get confused and load a module that doesn't actually have any implementation" but that's just your opinion. At the end of the day it only makes you and dmd look bad when it doesn't work because of some lame minor issue that could be easily fixed. But it's not being installed, it's being manually extracted, meaning you can't even have cleanup scripts. Compare keeping an installation of audio files in mp3 (bird calls), and then getting an upgrade where they are in ogg in a new neat directory hierarchy. There's an installer that properly and cleanly removes the old mp3s before extracting the new files, as well as a bonus archive if you want to unzip it yourself. Manually extracting it onto the old directory puts the oggs next to the mp3s, leaving it with twice the number of original audio files. Meanwhile, the official upgrade path (installer) properly removes the stale ones. You can't reasonably expect your audio player to not list them all there. So, the program, if it is updated shouldn't use the mp3's then. Why the hell is the program that you say was upgraded to use the ogg still searching and using mp3's? You are trying to make up reasons why it shouldn't work... at least come up with valid reasons. Yes, there might be "twice" the files and one might waste space BUT that is different from the application crapping out and the end user spending hours trying to figure out what is wrong. TOTALLY different issues. We are not talking about "listing" files or anything like that, we are talking about the app not working because of "stale" files because it decided to use them, even though it should have been told not too because the whole point of the upgrade was to migrate from one set of files to another... and yet some idiot who programmed the app still had the app use the old files... it's the idiots fault... not the end user. What if the end user does a partial restore from some system issues and those mp4's were restored? Then what? The end users fault when he opens up the app and it crashes? Some programmers need to start taking responsibility for the crap they spew out. What a programmer is creating is effecting many many end users. It is up to the programmer to do the correct job to prevent a large factor of end user waste. That is what the programmer gets paid for.
Re: It makes me sick!
On Friday, 28 July 2017 at 01:10:03 UTC, Mike Parker wrote: On Friday, 28 July 2017 at 00:28:52 UTC, FoxyBrown wrote: You are not being very logical. The zip file as N files in it. No matter what those files are, it should be a closed system. That is, if I insert or add(not replace) M file to the directory structure it should not break D, period! That's *not* what happened here. Jonathan explained it quite well. std.datetime was refactored into a package, its contents split into new modules. When you import a module foo, dmd looks for: 1. foo.di 2. foo.d 3. foo/package.d When it finds one, it stops looking. It's not an error for all three to exist. Your error came because it found std/datetime.d, but you linked to a library that included symbols for std/datatetime/package.d. It's not the compiler's responsibility to error in that case. It's your responsibility to properly install. Sorry, wrong. Why? Because NO file in the zip should be referencing any file not in the zip unless it is designed to behave that way(e.g., an external lib or whatever). If an old external program is referencing a file in dmd2 that isn't in the new zip it should err. Why? Because suppose you have an old program that references some old file in dmd2 dir and you upgrade dmd2 by extracting the zip. The program MAY still work and use broke functionality that will go undetected but be harmful. Why? Because dmd.exe is reference a file it shouldn't and it should know it shouldn't yet it does so anyways. It really has nothing to do with the file being in the dir but that dmd is being stupid because no one bothered to sanity checks because they are too lazy/think it's irrelevant because it doesn't effect them. That's unreasonable. Nope, your unreasonable expecting the end user to clean up the mess "you" leave. I should be able to put any extra files anywhere in the dmd2 dir structure and it should NOT break dmd. There are numerous applications out there that can break if you simply overwrite a directory with a newer version of the app. DMD is not alone with this. You should always delete the directory first. It's precisely why the compiler does so. Nope. Virtually all apps, at least on windows, work fine if you replace their contents with new versions. Generally, only generated files such as settings and such could break the apps... but this is not the problem here. If dmd breaks in strange and unpredictable ways IT IS DMD's fault! No exceptions, no matter what you believe, what you say, what lawyer you pay to create a law for you to make you think you are legally correct! You can make any claim you want like: "The end user should install in to a clean dir so that DMD doesn't get confused and load a module that doesn't actually have any implementation" but that's just your opinion. At the end of the day it only makes you and dmd look bad when it doesn't work because of some lame minor issue that could be easily fixed. It suggests laziness["Oh, there's a fix but I'm too lazy to add it"], arrogance["Oh, it's the end users fault, let them deal with it"], and a bit of ignorance. In the long run, mentalities like yours are hurting D rather than helping it. Sure, you might contribute significantly to D's infrastructure, but if no one uses because there are so many "insignificant" issues then you've just wasted an significant portion of your life for absolutely nothing. So, I'd suggest you rethink your position and the nearsighted rhetoric that you use. You can keep the mentality of kicking the can down the road and blaming the end user but it will ultimately get you no where.
Re: It makes me sick!
On Thursday, 27 July 2017 at 23:37:41 UTC, Jonathan M Davis wrote: On Thursday, July 27, 2017 11:55:21 Ali Çehreli via Digitalmars-d-learn wrote: On 07/27/2017 11:47 AM, Adam D. Ruppe wrote: > On Thursday, 27 July 2017 at 18:35:02 UTC, FoxyBrown wrote: >> But the issue was about missing symbols, not anything >> "extra". If datatime.d is there but nothing is using it, >> why should it matter? > > YOU were using it with an `import std.datetime;` line. With > the file still there, it sees it referenced from your code > and loads the file... but since it is no longer used > upstream, the .lib doesn't contain it and thus missing > symbol. So, the actual problem is that given both datetime/package.d and datetime.d, the import statement prefers the file. It could produce a compilation error. If we don't want that extra check by the compiler, it would be better to keep datetime.d with a warning in it about the change. The warning could say "please remove this file". :) I think that this should obviously be a compilation error as should any case where you've basically declared the same module twice. And really, I don't see any reason to support extracting the new zip on the old folder. We've never said that that would work, and if you think it through, it really isn't all that reasonable to expect that it would work. The list of files changes from release to release (even if removals are rare), and the layout of the directories could change. So long as the sc.ini or dmd.conf does ther right thing, then that really isn't a problem. Obviously, it's more of a pain if folks are making manual changes, but we've never promised that the directory structure of each release would be identical or that copying one compiler release on top of another would work. - Jonathan M Davis You are not being very logical. The zip file as N files in it. No matter what those files are, it should be a closed system. That is, if I insert or add(not replace) M file to the directory structure it should not break D, period! Why? Because NO file in the zip should be referencing any file not in the zip unless it is designed to behave that way(e.g., an external lib or whatever). If an old external program is referencing a file in dmd2 that isn't in the new zip it should err. Why? Because suppose you have an old program that references some old file in dmd2 dir and you upgrade dmd2 by extracting the zip. The program MAY still work and use broke functionality that will go undetected but be harmful. Why? Because dmd.exe is reference a file it shouldn't and it should know it shouldn't yet it does so anyways. It really has nothing to do with the file being in the dir but that dmd is being stupid because no one bothered to sanity checks because they are too lazy/think it's irrelevant because it doesn't effect them. I should be able to put any extra files anywhere in the dmd2 dir structure and it should NOT break dmd. It's like if I put a text file in some OS directory and the OS decides to use that file and crash the OS and not boot... it could happen, but it shouldn't. In fact, all of phobos should be versioned. Each module should have a version id embedded in it. Each release all the versions are updated before shipping.
Re: It makes me sick!
On Thursday, 27 July 2017 at 18:14:52 UTC, Steven Schveighoffer wrote: On 7/27/17 1:58 PM, FoxyBrown wrote: On Thursday, 27 July 2017 at 12:23:52 UTC, Jonathan M Davis wrote: On Wednesday, July 26, 2017 22:29:00 Ali Çehreli via Digitalmars-d-learn wrote: On 07/26/2017 09:20 PM, FoxyBrown wrote: >> Somebody else had the same problem which they solved by removing >> >> "entire dmd": >> http://forum.dlang.org/thread/ejybuwermnentslcy...@forum.dlang.org >> >> Ali > > Thanks, that was it. So I guess I have to delete the original dmd2 dir > before I install each time... didn't use to have to do that. Normally, it shouldn't be necessary. The splitting of the datetime package[1] had this effect but I'm not sure why the installation process can't take care of it. Ali [1] http://dlang.org/changelog/2.075.0.html#split-std-datetime It _should_ take care of it. The fact that multiple people have run into this problem and that the solution was to remove dmd and then reinstall it implies that there's a bug in the installer. - Jonathan M Davis I do not use the installer, I use the zip file. I assumed that everything would be overwritten and any old stuff would simply go unused.. but it seems it doesn't. If the other person used the installer then it is a problem with dmd itself not designed properly and using files that it shouldn't. I simply unzip the zip file in to the dmd2 dir and replace sc.ini... that has been my MO for since I've been trying out dmd2 and only recently has it had a problem. If you extracted the zip file over the original install, then it didn't get rid of std/datetime.d (as extracting a zipfile doesn't remove items that exist on the current filesystem but aren't in the zipfile). So I can totally see this happening. I don't know of a good way to solve this except to tell people, don't do that. -Steve But the issue was about missing symbols, not anything "extra". If datatime.d is there but nothing is using it, why should it matter? Why would it have any effect on the compilation process and create errors with D telling me something is being used that isn't? dmd shouldn't be picking up extraneous and non-connected files just for the fun of it. Basically, if no "references" escape out side of the D ecosystem, then there shouldn't be a problem.
Re: It makes me sick!
On Thursday, 27 July 2017 at 12:23:52 UTC, Jonathan M Davis wrote: On Wednesday, July 26, 2017 22:29:00 Ali Çehreli via Digitalmars-d-learn wrote: On 07/26/2017 09:20 PM, FoxyBrown wrote: >> Somebody else had the same problem which they solved by removing >> >> "entire dmd": >> http://forum.dlang.org/thread/ejybuwermnentslcy...@forum.dlang.org >> >> Ali > > Thanks, that was it. So I guess I have to delete the original dmd2 dir > before I install each time... didn't use to have to do that. Normally, it shouldn't be necessary. The splitting of the datetime package[1] had this effect but I'm not sure why the installation process can't take care of it. Ali [1] http://dlang.org/changelog/2.075.0.html#split-std-datetime It _should_ take care of it. The fact that multiple people have run into this problem and that the solution was to remove dmd and then reinstall it implies that there's a bug in the installer. - Jonathan M Davis I do not use the installer, I use the zip file. I assumed that everything would be overwritten and any old stuff would simply go unused.. but it seems it doesn't. If the other person used the installer then it is a problem with dmd itself not designed properly and using files that it shouldn't. I simply unzip the zip file in to the dmd2 dir and replace sc.ini... that has been my MO for since I've been trying out dmd2 and only recently has it had a problem.
Re: It makes me sick!
On Thursday, 27 July 2017 at 03:41:06 UTC, Ali Çehreli wrote: On 07/26/2017 08:34 PM, FoxyBrown wrote: Knowing that every time I upgrade to the latest "official" D compiler I run in to trouble: Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3std8datetime7SysTime8toStringMxFNbNfZAya (const(nothrow @safe immutable(char)[] function()) std.datetime.SysTime.toString) Win32\Debug DMD\test.obj(test) Somebody else had the same problem which they solved by removing "entire dmd": http://forum.dlang.org/thread/ejybuwermnentslcy...@forum.dlang.org Ali Thanks, that was it. So I guess I have to delete the original dmd2 dir before I install each time... didn't use to have to do that.
Re: It makes me sick!
And yes, I'm using the correct phobos(the one that came with dmd2).
It makes me sick!
Knowing that every time I upgrade to the latest "official" D compiler I run in to trouble: Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3std8datetime7SysTime8toStringMxFNbNfZAya (const(nothrow @safe immutable(char)[] function()) std.datetime.SysTime.toString) Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3std8datetime7SysTime6toHashMxFNaNbNiNfZk (const(pure nothrow @nogc @safe uint function()) std.datetime.SysTime.toHash) Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3std8datetime7SysTime8opEqualsMxFNaNbNfKxS3std8datetime7SysTimeZb (const(pure nothrow @safe bool function(ref const(std.datetime.SysTime))) std.datetime.SysTime.opEquals) Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3std8datetime7SysTime8__xopCmpFKxS3std8datetime7SysTimeKxS3std8datetime7SysTimeZi (int std.datetime.SysTime.__xopCmp(ref const(std.datetime.SysTime), ref const(std.datetime.SysTime))) Win32\Debug DMD\test.obj(test) Error 42: Symbol Undefined _D3gtk3All12__ModuleInfoZ (gtk.All.__ModuleInfo) \GtkD\x86\gtkd.lib(AboutDialog) Error 42: Symbol Undefined _D3std6format64__T14formatIntegralTS3std5array17__T8AppenderTAyaZ8AppenderTmTaZ14formatIntegralFNaNbNfS3std5array17__T8AppenderTAyaZ8AppenderxmKxS3std6format18__T10FormatSpecTaZ10FormatSpeckmZv (pure nothrow @safe void std.format.formatIntegral!(std.array.Appender!(immutable(char)[]).Appender, ulong, char).formatIntegral(std.array.Appender!(immutable(char)[]).Appender, const(ulong), ref const(std.format.FormatSpec!(char).FormatSpec), uint, ulong)) \GtkD\x86\gtkd.lib(AboutDialog) Error 42: Symbol Undefined _D3std5stdio6stderrS3std5stdio4File (std.stdio.File std.stdio.stderr) \GtkD\x86\gtkd.lib(Implement) Error 42: Symbol Undefined _D3std6format64__T14formatUnsignedTS3std5array17__T8AppenderTAyaZ8AppenderTmTaZ14formatUnsignedFNaNbNfS3std5array17__T8AppenderTAyaZ8AppendermKxS3std6format18__T10FormatSpecTaZ10FormatSpeckbZv (pure nothrow @safe void std.format.formatUnsigned!(std.array.Appender!(immutable(char)[]).Appender, ulong, char).formatUnsigned(std.array.Appender!(immutable(char)[]).Appender, ulong, ref const(std.format.FormatSpec!(char).FormatSpec), uint, bool)) Error: linker exited with status 8 Building Win32\Debug DMD\test.exe failed! I recompiled gtkD with the new compiler, same result. My code was working before the upgrade just fine and I did not change anything.
GtkD on android?
With LDC's new ability to do android/arm, we are missing the ability to do GUI's? Can any of the current D solutions work such as GtkD or QtD? I'm looking for something somewhat lightweight, easy to use(I find GtkD a bit funky but it does seem to work and is relatively easy once one gets through the basics). I think having a GUI builder is crucial though as it makes it so much easier in the long run. Glade is a bit funky but functional and works. Ideally I'd like to be able to make portable apps that just work across the board(mac, linux, windows, android) without much hassle.
Re: find difference between two struct instances.
On Saturday, 22 July 2017 at 01:04:48 UTC, Nicholas Wilson wrote:
On Friday, 21 July 2017 at 23:38:51 UTC, FoxyBrown wrote:
[...]
use opCmp in conjunction with __traits(allMembers,T)
struct Example
{
int a,b,c;
string d,e,f;
}
void difference(alias func, T)(T t1, T t2)
if(__traits(compiles, func(t1,t2)))
{
foreach(U; __traits(allMembers,T)
{
if (mixin("t1." ~ U.stringof~ ".opCmp(t2." ~ U.stringof
~")")
func(t1,t2);
}
}
auto a = Example(1,2,3,"foo","bar",baz");
auto a = Example(1,2,42,"foo","bar",quux");
difference!(writeln)(a,b); // hopefully prints 343\nbazquux
Not tested but should give you an idea to adapt as needed.
thanks, I'll try it out.
Re: executeShell not working
On Saturday, 22 July 2017 at 02:31:45 UTC, FoxyBrown wrote:
auto sss = "sc config \""~szSvcName~"\" start= disabled";
executeShell("sc config \""~szSvcName~"\" start= disabled");
but if I copy and paste the string in to an admin console, it
works fine:
sc config "W32Time" start= disabled
[SC] ChangeServiceConfig SUCCESS
szSvcName is W32Time.
It's not an admin issue.
I *can't* set it to other states either. Does executeShell not
run it's process with the same rights as the app?
even spawnProcess isn't doing it
spawnProcess(["C:\\Windows\\System32\\sc.exe","config",
szSvcName, "start=","disabled"]);
or
spawnProcess(["C:\\Windows\\System32\\sc.exe","config
"~szSvcName~" start= disabled"]);
executeShell not working
auto sss = "sc config \""~szSvcName~"\" start= disabled";
executeShell("sc config \""~szSvcName~"\" start= disabled");
but if I copy and paste the string in to an admin console, it
works fine:
sc config "W32Time" start= disabled
[SC] ChangeServiceConfig SUCCESS
szSvcName is W32Time.
It's not an admin issue.
I *can't* set it to other states either. Does executeShell not
run it's process with the same rights as the app?
Re: find difference between two struct instances.
On Friday, 21 July 2017 at 22:35:20 UTC, Era Scarecrow wrote: On Friday, 21 July 2017 at 21:03:22 UTC, FoxyBrown wrote: Is there a way to easily find the differences between to struct instances? I would like to report only the differences e.g., writeln(s1 - s2); prints only what is different between s1 and s2. No, it isn't. It is a concept, wasn't mean to be taken as literal D code. This is entirely dependent on the structs in question, you can't just subtract any struct from another struct unless it knows how to do it. Depends on what the structures hold. You'll probably have to either make an opSub, a function to call opBinary!"-", or do opCmp which returns which is higher/lower (and may be as simple as subtraction). Why do I want to go through all that trouble? A simple binary compare should suffice.
find difference between two struct instances.
Is there a way to easily find the differences between to struct instances? I would like to report only the differences e.g., writeln(s1 - s2); prints only what is different between s1 and s2.
How to get value of type at CT given only an alias
Trying to do some tricky stuff but I can't seem to get the value of a type(enum in my case, but must work in general). Basically, given a type T or an alias T(alias preferred), I'd like to be able to get the "default value" of that type. e.g., if it is an enum and I have an alias to a member, instead of (Enum)3 I want 3. if it is a member field, I want the default value. if it is a function pointer, the address(probably 0, but whatever). Basically a sort of generic "getValue" that attempts to get the CT value of any type, if it exists. (obviously the value of class is meaningless, so returns ""... class isn't even a type, but can still query). In fact, I'd like to also naturally resolve the value back in to the expression that created it. e.g., (Enum)3 -> Enum.ThirdEntry
nogc string concatenation?
Anyone have an efficient implementation that is easy to use?
Re: WTF is going on! Corrupt value that is never assigned
On Thursday, 13 July 2017 at 23:30:39 UTC, Moritz Maxeiner wrote: On Thursday, 13 July 2017 at 22:53:45 UTC, FoxyBrown wrote: On Thursday, 13 July 2017 at 20:35:19 UTC, Moritz Maxeiner wrote: On Thursday, 13 July 2017 at 18:22:34 UTC, FoxyBrown wrote: The following code is pretty screwed up, even though it doesn't look like it. I have a buf, a simple malloc which hold the results of a win32 call. I am then trying to copy over the data in buf to a D struct. But when copying the strings, the buf location changes, screwing up the copying process. It shouldn't happen, buf never changes value anywhere except the first malloc(which is once). Somehow it is getting changed, but where? [...] The buf value changes when calling cstr2dstr but I've had it with other values to(any function call such as to!string, etc seems to trigger it). [...] - Does this happen every time, or only sometimes? yes, but I've been having this problem and not sure if it was quite as consistent as before or that I just recognized it. - At which loop iteration does it occur? Now it seems to occur after the first iteration, but I've add it happen after a while and in other cases it's worked.. depends on if I use malloc, or a D array, or what. - Which compiler (+version) are you using (with what flags)? Latest DMD official.. whatever default flags exist in debug mode with visual D... why should it matter? [...] Because it's part of the usual "Steps to reproduce" you are supposed to provide so others can verify what you're encountering. - What are the steps to reproduce (i.e. does this e.g. happen with a main that consist of one call to EnumServices) ? Yes, It is basically the first thing I do when I run my program. [...] Okay, I'll setup a Windows VM when I have time and check it out (unless someone solves it beforehand). because D is not interfacing well with C. First, the win32 function does not simply fill in an array but adds additional junk at the end(didn't know that until after a few wasted hours trying to get it to fill in an array properly). To be fair, that's neither C nor D fault; that's Microsoft providing unintuitive, horrible APIs and doing an amazing job of providing documentation (MSDN) that *appears* to be exhaustive and well written, but misses all these little important details that you actually have to know in order to program correct control logic, driving you to the edge of sanity. Been there, done that. I have generally not had that problem. Usually works as it does and pretty straight forward. Might have to fish a little for info from others but most things have been worked out by someone somewhere. What I'm trying to do is fairly straightforward but I've wasted nearly 2 days on it. I had no issues starting or stopping services but I can't get the enumerate code to work(the winapi function works fine, it's getting the info out of what it passes in to D that is the problem). There is no explanation why buf is being changed, I never change it after it is initialized, yet, it changes somehow. Either it is being overwritten because of a pointer that is invalid or it is a stack problem. It is most likely the former, but I have tried many different ways and they all lead to similar results.
Re: WTF is going on! Corrupt value that is never assigned
On Thursday, 13 July 2017 at 20:35:19 UTC, Moritz Maxeiner wrote: On Thursday, 13 July 2017 at 18:22:34 UTC, FoxyBrown wrote: The following code is pretty screwed up, even though it doesn't look like it. I have a buf, a simple malloc which hold the results of a win32 call. I am then trying to copy over the data in buf to a D struct. But when copying the strings, the buf location changes, screwing up the copying process. It shouldn't happen, buf never changes value anywhere except the first malloc(which is once). Somehow it is getting changed, but where? [...] The buf value changes when calling cstr2dstr but I've had it with other values to(any function call such as to!string, etc seems to trigger it). [...] - Does this happen every time, or only sometimes? yes, but I've been having this problem and not sure if it was quite as consistent as before or that I just recognized it. - At which loop iteration does it occur? Now it seems to occur after the first iteration, but I've add it happen after a while and in other cases it's worked.. depends on if I use malloc, or a D array, or what. - Which compiler (+version) are you using (with what flags)? Latest DMD official.. whatever default flags exist in debug mode with visual D... why should it matter? buf is changing on the only source of that change could be through the winapi call or the temp pointer used to index it.. which is never assigned to, so it can't be modifying it. The c2d function, when called, clearly has no understanding of buff, yet after it returns, it is causing the problem. This seems like the stack is being corrupted by the function call. - What are the steps to reproduce (i.e. does this e.g. happen with a main that consist of one call to EnumServices) ? Yes, It is basically the first thing I do when I run my program. It is a rather isolated function(Just trying to get a list of current services, which has been a total PITA because D is not interfacing well with C. First, the win32 function does not simply fill in an array but adds additional junk at the end(didn't know that until after a few wasted hours trying to get it to fill in an array properly). Hence now I'm trying to convert the returned data one iteration at a time rather than all at once, but I can't get that to work because the pointer to the buffer I created is changing. I could use a temp and get it to work, but that doesn't explain what the hell is going on. The value of buff seems to be erratic, I've had it point valid stuff(other data) and then have small values in it like 8. I don't know how any stack corruption could be occurring but that is exactly what it looks like. "Return from function call and "static variables"(with respect to the call) are changed.". But that seems really hard to sell given that it's pretty simple and D should have all those basics well covered.
WTF is going on! Corrupt value that is never assigned
The following code is pretty screwed up, even though it doesn't
look like it. I have a buf, a simple malloc which hold the
results of a win32 call. I am then trying to copy over the data
in buf to a D struct.
But when copying the strings, the buf location changes, screwing
up the copying process. It shouldn't happen, buf never changes
value anywhere except the first malloc(which is once). Somehow it
is getting changed, but where?
The specific win32 or style is irrelevant, I am talking either
about a bug or some subtle D thing because the code makes sense.
(Fill Buf, iterate through buffer copying over to D values).
I've ran in to this before, D does something fishy and it wastes
hours upon hours trying to track done some stupid little thing it
does.
The buf value changes when calling cstr2dstr but I've had it with
other values to(any function call such as to!string, etc seems to
trigger it).
struct ServiceData
{
wstring Name;
wstring LongName;
int Type;
int State;
int ControlsAccepted;
int Win32ExitCode;
int SpecificExitCode;
int CheckPoint;
int WaitHint;
int ProcessId;
int Flags;
}
auto cstr2dstr(wchar* cstr)
{
import std.array;
auto str = appender!wstring;
auto len = lstrlen(cstr);
str.reserve(len);
for(int i = 0; i < len; i++)
str.put(cstr[i]);
return str.data;
}
auto EnumServices()
{
import core.stdc.stdlib, std.traits;
ServiceData[] servicesList;
auto buf = malloc(5); // Gets changed later, even though
never an assignment
auto buf2 = buf; // does not change
auto schSCManager = OpenSCManager(null, null,
SC_MANAGER_ALL_ACCESS);
if (NULL == schSCManager)
{
print("OpenSCManager failed (%d)\n", GetLastError());
return servicesList;
}
DWORD dwBytesNeeded, dwCount, lpResumeHandle, resume, totalCount;
auto servicesType = (SERVICE_DRIVER | SERVICE_FILE_SYSTEM_DRIVER
| SERVICE_KERNEL_DRIVER | SERVICE_WIN32 |
SERVICE_WIN32_OWN_PROCESS | SERVICE_WIN32_SHARE_PROCESS);
int cnt = 0;
auto res = 0;
do
{
// Manually copy over data, this is because EnumSErvicesStatus
adds data at end of array for some odd ball reason making it
difficult to build the correct array sequentially
for(int i = 0; i < dwCount; i++)
{
ENUM_SERVICE_STATUS_PROCESSW x;
ServiceData d;
auto s = cast(ENUM_SERVICE_STATUS_PROCESSW*)(buf +
i*ENUM_SERVICE_STATUS_PROCESSW.sizeof);
//before buf is of correct value
d.Name = cstr2dstr(s.lpServiceName);
//after buf is invalid, yet buf is never
assigned
}
res = EnumServicesStatusExW(schSCManager,
SC_ENUM_TYPE.SC_ENUM_PROCESS_INFO, servicesType,
SERVICE_STATE_ALL, cast(ubyte*)buf, 5, ,
, , cast(const(char)*)null);
if (ERROR_MORE_DATA != GetLastError()) { print("Error
enumerating services."); break; }
} while (res == 0);
for(int i = 0; i < totalCount; i++)
{
auto s = servicesList[i];
writeln(s.Name, " - ", s.LongName, " - ", s.Type, " = ",
s.State);
}
return servicesList;
}
Whats the correct way to pass a D array type to a win32 api function wanting a buffer?
Everything I do results in some problem, I've tried malloc but
then converting the strings resulted in my program becoming
corrupted.
Heres the code:
auto EnumServices()
{
auto schSCManager = OpenSCManager(null, null,
SC_MANAGER_ALL_ACCESS);
if (NULL == schSCManager)
{
print("OpenSCManager failed (%d)\n", GetLastError());
return null; // Why can't we return a null? Surely we
don't have to cast a null in to a typeof null?
}
import core.stdc.stdlib;
DWORD dwBytesNeeded, dwCount, lpResumeHandle, resume;
auto servicesType = (SERVICE_DRIVER | SERVICE_FILE_SYSTEM_DRIVER
| SERVICE_KERNEL_DRIVER | SERVICE_WIN32 |
SERVICE_WIN32_OWN_PROCESS | SERVICE_WIN32_SHARE_PROCESS);
ENUM_SERVICE_STATUS_PROCESS[5000] services;
auto res = SVC.EnumServicesStatusExA(schSCManager,
SC_ENUM_TYPE.SC_ENUM_PROCESS_INFO, servicesType,
SERVICE_STATE_ALL, cast(ubyte*)services.ptr,
5000*ENUM_SERVICE_STATUS_PROCESS.sizeof, ,
, , cast(const(char)*)null);
for(int i = 0; i < dwCount; i++)
{
auto s = services[i].lpServiceName;
writeln(*s);
}
return services;
}
Re: Why no offsetof for static struct?
On Monday, 10 July 2017 at 20:13:46 UTC, Adam D. Ruppe wrote:
On Monday, 10 July 2017 at 20:01:39 UTC, FoxyBrown wrote:
Cannot get the offset of static members of a struct
That's because static members do not have an offset. They are
not part of the struct in memory, just in name.
We can clearly get a pointer to the static struct X
There's barely any such thing as a static struct. That's just a
struct that stands without outside context which is almost
all structs, actually, so the term isn't special.
since is effectively the address of X(regardless
nomenclature and terminology issues in D trying to hide this).
No, it isn't. Static members are stored in an entirely
different place than non-static members. They are really just
global variables in memory with their in-source name being
nested somewhere else.
This is not true, just because there isn't any official
statement, or even if denied, does not make it true. I have proof:
auto GetStaticAddress(T)()
{
mixin("auto p = cast(T*)"~__traits(allMembers, T)[0]~";");
return p;
}
Returns the address of a struct's static members.
It's pretty obvious, the compiler seems to instantiate the static
members simply as a sort of "singleton". They are laid out with
the same relative offsets as the struct(which is obvious, as that
is the most natural way). That is all that is needed to treat the
memory the static variables use as the struct in which they are
part of. No need to make it any more complex than that.
Just because D obfuscates that static structs have addresses,
doesn't mean they don't. No need to perpetuate a misnomer. Static
structs and classes have addresses.
No, it might not be officially supported and the compiler may end
up doing something funky, but it works, and works as it should,
and should become part of D because it is useful:
auto GetOpts(T)(string[] args)
{
import std.getopt, std.meta, std.traits;
auto t = GetStaticAddress!(T)();
string combine()
{
string s = "";
foreach(m; AliasSeq!(__traits(allMembers, T)))
{
mixin("enum a = __traits(getAttributes, T."~m~")[0];");
mixin("s ~= \"`"~a~"`, &"~T.stringof~"."~m~", \";");
}
return s;
}
enum s = combine();
mixin("return getopt(args, "~s~");");
}
struct X
{
align(1):
__gshared public static:
@("A") bool A;
@("B") string B;
@("C") string[] C;
};
which allows us to do
GetOps!X(args)
vs
getop(args, "A", , "B", , "C", );
replaces the overly verbose getopt. Tell me that isn't useful and
tell me that static structs don't have addresses!
Why no offsetof for static struct?
Cannot get the offset of static members of a struct
struct X
{
__gshared public:
int x;
}
X.x.offsetof < invalid.
We can clearly get a pointer to the static struct X since is
effectively the address of X(regardless nomenclature and
terminology issues in D trying to hide this).
e.g.,
auto p = cast(X*)
will, for all practical purposes be a pointer to X.
auto GetStaticAddress(T)()
{
mixin("auto p = cast(T*)"~__traits(allMembers, T)[0]~";");
return p;
}
Of course, assuming that the first member is at the same location
as the start of the struct and the elements are laid out in the
same positions(not sure if this is guaranteed, but probably is).
Would be much nicer if we could just take the address of a static
struct
This is pretty useful for simplification:
auto GetStaticAddress(T)()
{
mixin("auto p = cast(T*)"~__traits(allMembers, T)[0]~";");
return p;
}
auto GetOpts(T)(string[] args)
{
import std.getopt, std.meta, std.traits;
auto t = GetStaticAddress!(T)();
string combine()
{
string s = "";
foreach(m; AliasSeq!(__traits(allMembers, T)))
{
mixin("enum a = __traits(getAttributes, T."~m~")[0];");
mixin("s ~= \"`"~a~"`, &"~T.stringof~"."~m~", \";");
}
return s;
}
enum s = combine();
mixin("return getopt(args, "~s~");");
}
struct X
{
align(1):
__gshared public static:
@("A") bool A;
@("B") string B;
@("C") string[] C;
};
which allows us to do
GetOps!X(args)
vs
getop(args, "A", , "B", , "C", );
Could be improved to only deal with special argument attributes
on X's fields and allow for non-static strucs(for the general
case of mapping). Sort of a map between attribute space on a type
and some function.
Why no offsetof for static struct?
Cannot get the offset of static members of a struct
struct X
{
__gshared public:
int x;
}
X.x.offsetof < invalid.
We can clearly get a pointer to the static struct X since is
effectively the address of X(regardless nomenclature and
terminology issues in D trying to hide this).
e.g.,
auto p = cast(X*)
will, for all practical purposes be a pointer to X.
auto GetStaticAddress(T)()
{
mixin("auto p = cast(T*)"~__traits(allMembers, T)[0]~";");
return p;
}
Of course, assuming that the first member is at the same location
as the start of the struct and the elements are laid out in the
same positions(not sure if this is guaranteed, but probably is).
Would be much nicer if we could just take the address of a static
struct
How to get the address of a static struct?
static struct S
{
public static:
int x;
string a;
}
auto s = // ?!?!?! invalid because S is a struct, but...
basically s = S. So S.x = s.x and s.a = S.a;
Why do I have to do this?
Because in visual D, global structs don't show up in the
debugger. So if I create a local alias, I can see see them, but I
don't wanna have to do one variable for each variable in the
struct...
iterate over variadic
How can we iterate over a variadic and have it's index. I'll do different things depend on if it's an even or odd index, but seems to be no way to get it.
Re: Application settings
On Friday, 7 July 2017 at 20:45:36 UTC, Moritz Maxeiner wrote: On Friday, 7 July 2017 at 19:40:35 UTC, FoxyBrown wrote: What's the "best" way to do this? I want something I can simply load at startup in a convenient and easy way then save when necessary(possibly be efficient at it, but probably doesn't matter). Simply json an array and save and load it, or is there a better way? "best" always depends on your specific use case. I use json files via asdf [1] [1] https://github.com/tamediadigital/asdf Seems like quite a heavy package for what I need. I just want to write a AA to disk and load it, ultimately.
Application settings
What's the "best" way to do this? I want something I can simply load at startup in a convenient and easy way then save when necessary(possibly be efficient at it, but probably doesn't matter). Simply json an array and save and load it, or is there a better way? Ideally, I'd like to store the settings as part of the binary to keep everything together but that poses a few issues I think.
Re: Address of a lambda
On Friday, 7 July 2017 at 17:52:25 UTC, Ali Çehreli wrote: On 07/07/2017 10:33 AM, FoxyBrown wrote: > [...] the methods > [...] I'm not a user but I don't think it's right. According to the following, it takes a delegate: [...] Thanks, I guess one doesn't need to pass the address(I copied the code from somewhere and it was so I made an assumption). One doesn't need the delegate keyword or &, but the question then is why does & work? Seems to have done not affect the behavior.
Address of a lambda
In gtk, we routinly have to use delegates for callbacks. But the
methods that accept these delegates want the address of the
delegate, this prevents us from being able to pass a lambda in
directly, but there really is not reason why we shouldn't be able
to do this?
Fine:
void main()
{
bool windowDelete(Event event, Widget widget) { Main.quit();
return false; }
MainWindow.addOnDelete();
}
Invalid:
void main()
{
MainWindow.addOnDelete(&((Event event, Widget widget)
{ Main.quit(); return false; }));
}
and yet, the only difference is a copy and paste(i.e., a rewrite
rule, at most). Surely the compiler can figure out that we can
take such an address because anything that actually exists must
have an address somewhere. Seems like an arbitrary blocker? Even
if it saves us from some obscure problems, it should work in most
cases and be allowed when used in those cases.
What's even stranger is that the function windowDelete must be
declared in some type of object, such as another function, so it
is actually a delegate, if one has it in the module root then it
is a normal function and cannot be passed to addOnDelete, even
though, again, there is very little difference.
Invalid:
bool windowDelete(Event event, Widget widget) { Main.quit();
return false; }
void main()
{
MainWindow.addOnDelete();
}
I do know the difference between a delegate and a function, and I
suppose addOnDelete should be defined to take a function instead?
But how can we create a "delegate function" similar to the nested
delegate in the first case that works so that we can pass them as
delegates?
And aside, shouldn't all functions really be delegates? Having a
closure of the outer scope still holds at the module root
level(the scope is the module root). While it's an extra argument
to pass, it could simplify live a bit. The corner cases could be
handled by explicitly forcing it to be a function.
Re: Need simple sound
Heres a better version that automatically generates a class
wrapping the portaudio.dll. Need portaudio.di(possibly renamed to
portaudio.d and imported). Still same problem as original though.
import portaudio;
import std.conv, std.stdio;
import core.stdc.stdio;
alias BOOL = ubyte;
alias DWORD = uint;
auto BuildDLLClassFromCHeader(alias modulename, string name)()
{
import std.traits, std.algorithm, std.meta;
auto s = "extern (C) class " ~name~"\n{\n\timport ___import =
"~moduleName!modulename~";\n";
mixin("import "~moduleName!modulename~";");
foreach(m; AliasSeq!(__traits(allMembers, modulename)))
{
mixin("alias member = " ~ fullyQualifiedName!(modulename) ~ "."
~ m ~ ";");
static if (is(typeof(member) == function))
static if (functionLinkage!member != "C")
continue;
else
s ~= "\tpublic static typeof(___import."~__traits(identifier,
member)~")* "~__traits(identifier, member)~";\n";
}
return s ~ "}";
}
void DllImport(alias T)(string dllName)
{
import core.sys.windows.windows, std.conv, std.meta;
auto dll = LoadLibrary(to!wstring(dllName~"\0").ptr);
if (dll == null)
assert(0, "Cannot load DLL `"~dllName~"'");
foreach(fname; __traits(derivedMembers, T))
{
auto func = GetProcAddress(dll, fname);
enum s = "auto p = cast(void**)&"~T.stringof~"."~fname~"; *p =
cast(typeof(p))func;";
mixin(s);
}
}
mixin(BuildDLLClassFromCHeader!(portaudio, "PortAudioDLL")());
struct Phase
{
float left=0, right=0;
}
bool test = false;
extern(C) int sawtooth(const(void)* inputBuffer, void*
outputBuffer, size_t framesPerBuffer,
const(PaStreamCallbackTimeInfo)* timeInfo, PaStreamCallbackFlags
statusFlags, void *userData)
{
test = true;
auto phase = cast(Phase*)userData;
auto pout = cast(float*)outputBuffer;
enum vol = 0.2f;
foreach(i; 0 .. framesPerBuffer)
{
*pout++ = vol * phase.left;
*pout++ = vol * phase.right;
phase.left += 0.01f;
if (phase.left >= 1.0f) phase.left -= 2.0f;
phase.right += 0.03f;
if (phase.right >= 1.0f) phase.right -= 2.0f;
}
return 0;
}
int main()
{
DllImport!PortAudioDLL("portaudio_x86.dll");
with(PortAudioDLL)
{
enum NUM_SECONDS = 5;
PaStream* stream;
PaError err;
Phase phase_data;
if ((err = Pa_Initialize()) == paNoError)
{
writeln("---");
auto numDevices = Pa_GetDeviceCount();
if(numDevices < 0)
{
printf("ERROR: Pa_CountDevices returned
0x%x\n", numDevices);
err = numDevices;
goto Lerror;
}
for(auto i = 0; i < numDevices; i++ )
{
auto deviceInfo = Pa_GetDeviceInfo(i);
writeln("Device "~to!string(i)~" >
"~to!string(deviceInfo.name)~",
"~to!string(deviceInfo.maxInputChannels)~",
"~to!string(deviceInfo.maxOutputChannels)~",
"~to!string(deviceInfo.defaultLowOutputLatency)~","~to!string(deviceInfo.defaultHighOutputLatency)~", "~to!string(deviceInfo.defaultSampleRate)~", "~to!string(deviceInfo.hostApi));
}
double sampleRate = 44100;
PaStreamParameters* input;
if (input != null)
{
input.device = 0;
auto id = Pa_GetDeviceInfo(input.device);
input.hostApiSpecificStreamInfo = null;
input.channelCount = id.maxInputChannels;
input.sampleFormat = paFloat32;
input.suggestedLatency = (id.defaultLowInputLatency +
id.defaultHighInputLatency)/2;
sampleRate = id.defaultSampleRate;
}
PaStreamParameters* output = new PaStreamParameters();
if (output != null)
{
output.device = 9;
auto od = Pa_GetDeviceInfo(output.device);
output.hostApiSpecificStreamInfo = null;
output.channelCount = od.maxOutputChannels;
output.sampleFormat = paFloat32;
output.suggestedLatency = (od.defaultLowOutputLatency +
Re: AutoDLL
Here is a solution that will wrap all extern C functions and
allow one to then map them to a dll.
auto BuildDLLClassFromCHeader(alias modulename, string name)()
{
import std.traits, std.algorithm, std.meta;
auto s = "extern (C) class " ~name~"\n{\n\timport ___import =
"~moduleName!modulename~";\n";
mixin("import "~moduleName!modulename~";");
foreach(m; AliasSeq!(__traits(allMembers, modulename)))
{
mixin("alias member = " ~ fullyQualifiedName!(modulename) ~ "."
~ m ~ ";");
static if (is(typeof(member) == function))
static if (functionLinkage!member != "C")
continue;
else
s ~= "\tpublic static typeof(___import."~__traits(identifier,
member)~")* "~__traits(identifier, member)~";\n";
}
return s ~ "}";
}
void DllImport(alias T)(string dllName)
{
import core.sys.windows.windows, std.conv, std.meta;
auto dll = LoadLibrary(to!wstring(dllName~"\0").ptr);
if (dll == null)
assert(0, "Cannot load DLL `"~dllName~"'");
foreach(fname; __traits(derivedMembers, T))
{
auto func = GetProcAddress(dll, fname);
enum s = "auto p = cast(void**)&"~T.stringof~"."~fname~"; *p =
cast(typeof(p))func;";
mixin(s);
}
}
e.g.,
mixin(BuildDLLClassFromCHeader!(portaudio, "PortAudioDLL")());
DllImport!PortAudioDLL("portaudio_x86.dll");
it generates the following for portaudio.di:
extern (C) class PortAudioDLL
{
import ___import = portaudio;
public static typeof(___import.Pa_GetVersion)* Pa_GetVersion;
public static typeof(___import.Pa_GetVersionText)*
Pa_GetVersionText;
public static typeof(___import.Pa_GetErrorText)* Pa_GetErrorText;
public static typeof(___import.Pa_Initialize)* Pa_Initialize;
public static typeof(___import.Pa_Terminate)* Pa_Terminate;
public static typeof(___import.Pa_GetHostApiCount)*
Pa_GetHostApiCount;
public static typeof(___import.Pa_GetDefaultHostApi)*
Pa_GetDefaultHostApi;
public static typeof(___import.Pa_GetHostApiInfo)*
Pa_GetHostApiInfo;
public static typeof(___import.Pa_HostApiTypeIdToHostApiIndex)*
Pa_HostApiTypeIdToHostApiIndex;
public static
typeof(___import.Pa_HostApiDeviceIndexToDeviceIndex)*
Pa_HostApiDeviceIndexToDeviceIndex;
public static typeof(___import.Pa_GetLastHostErrorInfo)*
Pa_GetLastHostErrorInfo;
public static typeof(___import.Pa_GetDeviceCount)*
Pa_GetDeviceCount;
public static typeof(___import.Pa_GetDefaultInputDevice)*
Pa_GetDefaultInputDevice;
public static typeof(___import.Pa_GetDefaultOutputDevice)*
Pa_GetDefaultOutputDevice;
public static typeof(___import.Pa_GetDeviceInfo)*
Pa_GetDeviceInfo;
public static typeof(___import.Pa_IsFormatSupported)*
Pa_IsFormatSupported;
public static typeof(___import.Pa_OpenStream)* Pa_OpenStream;
public static typeof(___import.Pa_OpenDefaultStream)*
Pa_OpenDefaultStream;
public static typeof(___import.Pa_CloseStream)* Pa_CloseStream;
public static typeof(___import.Pa_SetStreamFinishedCallback)*
Pa_SetStreamFinishedCallback;
public static typeof(___import.Pa_StartStream)* Pa_StartStream;
public static typeof(___import.Pa_StopStream)* Pa_StopStream;
public static typeof(___import.Pa_AbortStream)* Pa_AbortStream;
public static typeof(___import.Pa_IsStreamStopped)*
Pa_IsStreamStopped;
public static typeof(___import.Pa_IsStreamActive)*
Pa_IsStreamActive;
public static typeof(___import.Pa_GetStreamInfo)*
Pa_GetStreamInfo;
public static typeof(___import.Pa_GetStreamTime)*
Pa_GetStreamTime;
public static typeof(___import.Pa_GetStreamCpuLoad)*
Pa_GetStreamCpuLoad;
public static typeof(___import.Pa_ReadStream)* Pa_ReadStream;
public static typeof(___import.Pa_WriteStream)* Pa_WriteStream;
public static typeof(___import.Pa_GetStreamReadAvailable)*
Pa_GetStreamReadAvailable;
public static typeof(___import.Pa_GetStreamWriteAvailable)*
Pa_GetStreamWriteAvailable;
public static typeof(___import.Pa_GetSampleSize)*
Pa_GetSampleSize;
public static typeof(___import.Pa_Sleep)* Pa_Sleep;
}
and then maps the function pointers to the dll.
Should work for other dlls.
Re: Need simple sound
On Thursday, 6 July 2017 at 14:41:32 UTC, Sebastiaan Koppe wrote:
On Thursday, 6 July 2017 at 13:28:26 UTC, FoxyBrown wrote:
On Wednesday, 5 July 2017 at 07:21:45 UTC, Sebastiaan Koppe
wrote:
Sure, see http://code.dlang.org/packages/portaudio
So, after a bit of work I can get port audio to work but the
callback never seems to be called(no audio, never hits bp).
Shows all the devices and seems to run fine otherwise. Tried
all the devices I I have. The default stream doesn't work
either.
The example I posted earlier did work on my Mac.
I will try your example + dll loader on Windows later today.
Nice loader btw.
I went ahead and simplified the DLL import
import portaudio;
import std.conv, std.stdio;
import core.stdc.stdio;
alias BOOL = ubyte;
alias DWORD = uint;
// New
void DllImport(alias T)(string dllName)
{
import core.sys.windows.windows, std.conv, std.meta;
auto dll = LoadLibrary(to!wstring(dllName~"\0").ptr);
if (dll == null)
assert(0, "Cannot load DLL `"~dllName~"'");
foreach(fname; __traits(derivedMembers, T))
{
auto func = GetProcAddress(dll, fname);
enum s = "auto p = cast(void**)&"~T.stringof~"."~fname~"; *p =
cast(typeof(p))func;";
mixin(s);
}
}
extern(C) class PortAudioDLL
{
public static PaError function() Pa_Initialize;
public static PaError function() Pa_Terminate;
public static PaHostApiIndex function() Pa_GetHostApiCount;
public static PaHostApiIndex function() Pa_GetDefaultHostApi;
public static PaDeviceIndex function() Pa_GetDefaultOutputDevice;
public static PaDeviceIndex function() Pa_GetDefaultInputDevice;
public static PaDeviceIndex function() Pa_GetDeviceCount;
public static const(PaHostErrorInfo)* function()
Pa_GetLastHostErrorInfo;
public static PaDeviceIndex function(PaHostApiIndex hostApi, int
hostApiDeviceIndex ) Pa_HostApiDeviceIndexToDeviceIndex;
public static PaHostApiIndex function(PaHostApiTypeId type)
Pa_HostApiTypeIdToHostApiIndex;
public static const(PaHostApiInfo)* function(PaHostApiIndex
hostApi) Pa_GetHostApiInfo;
public static PaError function(PaStream *stream,
PaStreamFinishedCallback streamFinishedCallback)
Pa_SetStreamFinishedCallback;
public static PaError function(PaStream *stream) Pa_CloseStream;
public static PaError function(PaStream** stream, int
numInputChannels, int numOutputChannels, PaSampleFormat
sampleFormat, double sampleRate, ulong framesPerBuffer,
PaStreamCallback streamCallback, void *userData)
Pa_OpenDefaultStream;
public static PaError function(PaStream** stream, const
PaStreamParameters *inputParameters, const PaStreamParameters
*outputParameters, double sampleRate, ulong framesPerBuffer,
PaStreamFlags streamFlags, PaStreamCallback streamCallback, void
*userData) Pa_OpenStream;
public static PaError function(const PaStreamParameters
*inputParameters, const PaStreamParameters *outputParameters,
double sampleRate) Pa_IsFormatSupported;
public static const(PaDeviceInfo)* function(PaDeviceIndex
device) Pa_GetDeviceInfo;
public static PaError function(PaStream *stream) Pa_StartStream;
public static PaError function(PaStream *stream) Pa_StopStream;
public static PaError function(PaStream *stream) Pa_AbortStream;
public static PaError function(PaStream *stream)
Pa_IsStreamStopped;
public static void function(long msec) Pa_Sleep;
public static PaError function(PaSampleFormat format)
Pa_GetSampleSize;
public static long function(PaStream* stream)
Pa_GetStreamWriteAvailable;
public static long function(PaStream* stream)
Pa_GetStreamReadAvailable;
public static PaError function(PaStream* stream, const void
*buffer, ulong frames) Pa_WriteStream;
public static PaError function(PaStream* stream, void *buffer,
ulong frames) Pa_ReadStream;
public static double function(PaStream* stream)
Pa_GetStreamCpuLoad;
public static PaTime function(PaStream *stream) Pa_GetStreamTime;
public static const(PaStreamInfo)* function(PaStream *stream)
Pa_GetStreamInfo;
public static PaError function(PaStream *stream)
Pa_IsStreamActive;
public static const(char)* function(PaError errorCode)
Pa_GetErrorText;
}
struct Phase
{
float left=0, right=0;
}
bool test = false;
extern(C) int sawtooth(const(void)* inputBuffer, void*
outputBuffer, size_t framesPerBuffer,
const(PaStreamCallbackTimeInfo)* timeInfo, PaStreamCallbackFlags
statusFlags, void *userData)
{
test = true;
auto phase = cast(Phase*)userData;
auto pout = cast(float*)outputBuffer;
enum vol = 0.2f;
foreach(i; 0 .. framesPerBuffer)
{
*pout++ = vol * phase.left;
*pout++ = vol * phase.right;
phase.left += 0.01f;
if (phase.left >= 1.0f) phase.left -= 2.0f;
phase.right += 0.03f;
if (phase.right >= 1.0f) phase.right -= 2.0f;
}
return 0;
}
int
Re: Need simple sound
On Thursday, 6 July 2017 at 14:41:32 UTC, Sebastiaan Koppe wrote: On Thursday, 6 July 2017 at 13:28:26 UTC, FoxyBrown wrote: On Wednesday, 5 July 2017 at 07:21:45 UTC, Sebastiaan Koppe wrote: Sure, see http://code.dlang.org/packages/portaudio So, after a bit of work I can get port audio to work but the callback never seems to be called(no audio, never hits bp). Shows all the devices and seems to run fine otherwise. Tried all the devices I I have. The default stream doesn't work either. The example I posted earlier did work on my Mac. I will try your example + dll loader on Windows later today. Nice loader btw. The example was drawn pretty much off the portaudio binding you linked. I just fixed it up so that the device parameters were automatically detected for the device I specified(as I got tired of manually typing them and getting errors). The autodll fixed the problem of trying to get the libs to work, which none did and just didn't seem worth the trouble getting to work. whats the real difference between that and the dll with the autoload code? We can bind the dll to the exe at compile time then use import to import it and load it from memory, so it, in effect, is self contained like a lib. I think the autoDLL if done right. I hacked it together and worked easier than I thought but didn't put in the time to make it nice. It could avoid libs all together, not that we need to do that. Still need a h/di file, of course. But why port audio is not calling the callback is beyond me.
Re: AutoDLL
On Thursday, 6 July 2017 at 16:14:18 UTC, Mike Parker wrote: On Thursday, 6 July 2017 at 12:15:57 UTC, FoxyBrown wrote: //pragma(lib, "portaudio_x86.lib"); // Doesn't work because libs are invalid Probably just a OMF/COFF issue. If you try to link with a COFF library while compiling with 32-bit DMD in its default configuration on Windows, you'll get such errors. You'll need to compile with -m32mscoff MS linker instead. Either that, or run coffimplib [1] (doc at [2]) on the portaudio dll. [1] http://ftp.digitalmars.com/coffimplib.zip [2] http://www.digitalmars.com/ctg/coffimplib.html I tried some of that stuff and it didn't work so I gave up and found the code above but it only printed the names so I added the ability to load the functions. I kept on getting that the was invalid. I figured it was more of a mess to try to get the libs right since what if I need to use a coff and omf? Seems like a royal pain in the butt to deal with.
Re: Need simple sound
On Wednesday, 5 July 2017 at 07:21:45 UTC, Sebastiaan Koppe wrote:
On Wednesday, 5 July 2017 at 05:34:37 UTC, FoxyBrown wrote:
On Tuesday, 4 July 2017 at 20:37:44 UTC, Sebastiaan Koppe
wrote:
Portaudio is simple as well. And nice cross platform.
are there any bindings?
Sure, see http://code.dlang.org/packages/portaudio
So, after a bit of work I can get port audio to work but the
callback never seems to be called(no audio, never hits bp). Shows
all the devices and seems to run fine otherwise. Tried all the
devices I I have. The default stream doesn't work either.
Here is the following code:
import portaudio;
import std.conv, std.stdio;
import core.stdc.stdio;
alias BOOL = ubyte;
alias DWORD = uint;
struct dllimport
{
string dllName;
}
template hasAttribute(alias sym, T)
{
static bool helper()
{
foreach(a; __traits(getAttributes, sym))
{
if(is(a == T) || __traits(compiles, typeof(a)) && is(typeof(a)
== T))
return true;
}
return false;
}
enum bool hasAttribute = helper();
}
template getAttribute(alias sym, T)
{
static T helper()
{
foreach(a; __traits(getAttributes, sym))
{
static if(is(a == T) || __traits(compiles, typeof(a)) &&
is(typeof(a) == T))
return a;
}
assert(0, "attribute " ~ T.stringof ~ " not found");
}
enum T getAttribute = helper();
}
void doImport(alias T)()
{
import core.sys.windows.windows, std.conv;
bool isDLLLoaded = false;
HINSTANCE dll;
foreach(m; __traits(allMembers, T))
{
static if(__traits(compiles, typeof(__traits(getMember, T, m
{
static if(hasAttribute!(__traits(getMember, T, m),
dllimport))
{
auto dllName = getAttribute!(__traits(getMember, T, m),
dllimport).dllName;
if (!isDLLLoaded)
{
writeln("Loading DLL `"~dllName~"'...");
isDLLLoaded = true;
dll =
LoadLibrary(to!wstring(dllName~"\0").ptr);
if (dll == null)
{
// ERROR, handle
writeln("Error, aborting!");
return;
}
}
auto q = GetProcAddress(dll, m);
mixin(m~" = cast(typeof("~m~"))q;");
//func(m, getAttribute!(__traits(getMember, T, m),
dllimport).dllName, cast(void**)&__traits(getMember, T, m));
}
}
}
}
mixin template DllImportFunctions()
{
struct DllImporter
{
shared static this()
{
doImport!(__traits(parent, DllImporter))();
}
static loadFunction(string name, const(char)[] dllName, void**
addr)
{
printf("import %.*s from %.*s into %llx\n", name.length,
name.ptr, dllName.length, dllName.ptr, addr);
}
}
}
extern(C) @dllimport("portaudio_x86.dll") __gshared
{
PaError function() Pa_Initialize;
PaError function() Pa_Terminate;
PaHostApiIndex function() Pa_GetHostApiCount;
PaHostApiIndex function() Pa_GetDefaultHostApi;
PaDeviceIndex function() Pa_GetDefaultOutputDevice;
PaDeviceIndex function() Pa_GetDefaultInputDevice;
PaDeviceIndex function() Pa_GetDeviceCount;
const(PaHostErrorInfo)* function() Pa_GetLastHostErrorInfo;
PaDeviceIndex function(PaHostApiIndex hostApi, int
hostApiDeviceIndex ) Pa_HostApiDeviceIndexToDeviceIndex;
PaHostApiIndex function(PaHostApiTypeId type)
Pa_HostApiTypeIdToHostApiIndex;
const(PaHostApiInfo)* function(PaHostApiIndex hostApi)
Pa_GetHostApiInfo;
PaError function(PaStream *stream, PaStreamFinishedCallback
streamFinishedCallback) Pa_SetStreamFinishedCallback;
PaError function(PaStream *stream) Pa_CloseStream;
PaError function(PaStream** stream, int numInputChannels, int
numOutputChannels, PaSampleFormat sampleFormat, double
sampleRate, ulong framesPerBuffer, PaStreamCallback
streamCallback, void *userData) Pa_OpenDefaultStream;
PaError function(PaStream** stream, const PaStreamParameters
*inputParameters, const PaStreamParameters *outputParameters,
double sampleRate, ulong framesPerBuffer, PaStreamFlags
streamFlags, PaStreamCallback streamCallback, void *userData)
Pa_OpenStream;
PaError function(const PaStreamParameters
AutoDLL
A DLL Loader prototype that loads DLL's, just specify the
declaration. Probably should be worked up so it is easy to load
DLL's.
Example:
import portaudio;
import std.conv, std.stdio;
import core.stdc.stdio;
//pragma(lib, "portaudio_x86.lib"); // Doesn't work because libs
are invalid
alias BOOL = ubyte;
alias DWORD = uint;
struct dllimport
{
string dllName;
}
template hasAttribute(alias sym, T)
{
static bool helper()
{
foreach(a; __traits(getAttributes, sym))
{
if(is(a == T) || __traits(compiles, typeof(a)) && is(typeof(a)
== T))
return true;
}
return false;
}
enum bool hasAttribute = helper();
}
template getAttribute(alias sym, T)
{
static T helper()
{
foreach(a; __traits(getAttributes, sym))
{
static if(is(a == T) || __traits(compiles, typeof(a)) &&
is(typeof(a) == T))
return a;
}
assert(0, "attribute " ~ T.stringof ~ " not found");
}
enum T getAttribute = helper();
}
void doImport(alias T)()
{
import core.sys.windows.windows, std.conv;
bool isDLLLoaded = false;
HINSTANCE dll;
foreach(m; __traits(allMembers, T))
{
static if(__traits(compiles, typeof(__traits(getMember, T, m
{
static if(hasAttribute!(__traits(getMember, T, m),
dllimport))
{
auto dllName = getAttribute!(__traits(getMember, T, m),
dllimport).dllName;
if (!isDLLLoaded)
{
writeln("Loading DLL `"~dllName~"'...");
isDLLLoaded = true;
dll =
LoadLibrary(to!wstring(dllName~"\0").ptr);
if (dll == null)
{
// ERROR, handle
writeln("Error, aborting!");
return;
}
}
auto q = GetProcAddress(dll, m);
mixin(m~" = cast(typeof("~m~"))q;");
//func(m, getAttribute!(__traits(getMember, T, m),
dllimport).dllName, cast(void**)&__traits(getMember, T, m));
}
}
}
}
mixin template DllImportFunctions()
{
struct DllImporter
{
shared static this()
{
doImport!(__traits(parent, DllImporter))();
}
static loadFunction(string name, const(char)[] dllName, void**
addr)
{
printf("import %.*s from %.*s into %llx\n", name.length,
name.ptr, dllName.length, dllName.ptr, addr);
}
}
}
extern(Windows) @dllimport("portaudio_x86.dll") __gshared
{
PaError function() Pa_Initialize;
PaError function() Pa_Terminate;
PaHostApiIndex function() Pa_GetHostApiCount;
PaHostApiIndex function() Pa_GetDefaultHostApi;
PaDeviceIndex function() Pa_GetDefaultOutputDevice;
PaDeviceIndex function() Pa_GetDefaultInputDevice;
PaDeviceIndex function() Pa_GetDeviceCount;
const(PaHostErrorInfo)* function() Pa_GetLastHostErrorInfo;
PaDeviceIndex function(PaHostApiIndex hostApi, int
hostApiDeviceIndex ) Pa_HostApiDeviceIndexToDeviceIndex;
PaHostApiIndex function(PaHostApiTypeId type)
Pa_HostApiTypeIdToHostApiIndex;
const(PaHostApiInfo)* function(PaHostApiIndex hostApi)
Pa_GetHostApiInfo;
PaError function(PaStream *stream, PaStreamFinishedCallback
streamFinishedCallback) Pa_SetStreamFinishedCallback;
PaError function(PaStream *stream) Pa_CloseStream;
PaError function(PaStream** stream, int numInputChannels, int
numOutputChannels, PaSampleFormat sampleFormat, double
sampleRate, ulong framesPerBuffer, PaStreamCallback
streamCallback, void *userData) Pa_OpenDefaultStream;
PaError function(PaStream** stream, const PaStreamParameters
*inputParameters, const PaStreamParameters *outputParameters,
double sampleRate, ulong framesPerBuffer, PaStreamFlags
streamFlags, PaStreamCallback streamCallback, void *userData)
Pa_OpenStream;
PaError function(const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters, double sampleRate)
Pa_IsFormatSupported;
const(PaDeviceInfo)* function(PaDeviceIndex device)
Pa_GetDeviceInfo;
PaError function(PaStream *stream) Pa_StartStream;
PaError function(PaStream *stream) Pa_StopStream;
PaError function(PaStream *stream) Pa_AbortStream;
PaError function(PaStream
Re: Need simple sound
On Wednesday, 5 July 2017 at 07:21:45 UTC, Sebastiaan Koppe wrote: On Wednesday, 5 July 2017 at 05:34:37 UTC, FoxyBrown wrote: On Tuesday, 4 July 2017 at 20:37:44 UTC, Sebastiaan Koppe wrote: Portaudio is simple as well. And nice cross platform. are there any bindings? Sure, see http://code.dlang.org/packages/portaudio I can't seem to get this to work. Are there any windows dll's or libs that work that are not outdated?
Re: GtkD nothing
Unfortunately, importing that module seems to throw an error for some insane reason. Error 42: Symbol Undefined _D3gtk6All12__ModuleInfoZ (gtk.AllGTK.__ModuleInfo) without importing it in to the project(but directly importing all the other modules works fine, e.g., copying and pasting).
Re: GtkD nothing
The module All in GtkD\generated\Gtkd\gtk will allow importing everything, e.g. import gtk = gtk.All; gtk.MainWindow etc. All.d-- module gtk.All; public import gtk.AboutDialog; public import gtk.AccelGroup; public import gtk.AccelLabel; public import gtk.AccelMap; public import gtk.Accessible; public import gtk.Action; public import gtk.ActionableIF; public import gtk.ActionableT; public import gtk.ActionBar; public import gtk.ActionGroup; public import gtk.ActivatableIF; public import gtk.ActivatableT; public import gtk.Adjustment; public import gtk.Alignment; public import gtk.AppChooserButton; public import gtk.AppChooserDialog; public import gtk.AppChooserIF; public import gtk.AppChooserT; public import gtk.AppChooserWidget; public import gtk.Application; public import gtk.ApplicationWindow; public import gtk.Arrow; public import gtk.ArrowAccessible; public import gtk.AspectFrame; public import gtk.Assistant; public import gtk.Bin; public import gtk.BindingEntry; public import gtk.BindingSet; public import gtk.BooleanCellAccessible; public import gtk.Border; public import gtk.Box; public import gtk.BuildableIF; public import gtk.BuildableT; public import gtk.Builder; public import gtk.Button; public import gtk.ButtonAccessible; public import gtk.ButtonBox; public import gtk.Calendar; public import gtk.CellAccessible; public import gtk.CellAccessibleParentIF; public import gtk.CellAccessibleParentT; public import gtk.CellArea; public import gtk.CellAreaBox; public import gtk.CellAreaClass; public import gtk.CellAreaContext; public import gtk.CellEditable; public import gtk.CellEditableIF; public import gtk.CellEditableT; public import gtk.CellLayoutIF; public import gtk.CellLayoutT; public import gtk.CellRenderer; public import gtk.CellRendererAccel; public import gtk.CellRendererClass; public import gtk.CellRendererCombo; public import gtk.CellRendererPixbuf; public import gtk.CellRendererProgress; public import gtk.CellRendererSpin; public import gtk.CellRendererSpinner; public import gtk.CellRendererText; public import gtk.CellRendererToggle; public import gtk.CellView; public import gtk.CheckButton; public import gtk.CheckMenuItem; public import gtk.CheckMenuItemAccessible; public import gtk.Clipboard; public import gtk.ColorButton; public import gtk.ColorChooserDialog; public import gtk.ColorChooserIF; public import gtk.ColorChooserT; public import gtk.ColorChooserWidget; public import gtk.ColorSelection; public import gtk.ColorSelectionDialog; public import gtk.ComboBox; public import gtk.ComboBoxAccessible; public import gtk.ComboBoxText; public import gtk.Container; public import gtk.ContainerAccessible; public import gtk.ContainerCellAccessible; public import gtk.ContainerClass; public import gtk.CssProvider; public import gtk.CssSection; public import gtk.Dialog; public import gtk.DragAndDrop; public import gtk.DrawingArea; public import gtk.EditableIF; public import gtk.EditableT; public import gtk.Entry; public import gtk.EntryAccessible; public import gtk.EntryBuffer; public import gtk.EntryCompletion; public import gtk.EventBox; public import gtk.EventController; public import gtk.Expander; public import gtk.ExpanderAccessible; public import gtk.FileChooserButton; public import gtk.FileChooserDialog; public import gtk.FileChooserIF; public import gtk.FileChooserNative; public import gtk.FileChooserT; public import gtk.FileChooserWidget; public import gtk.FileFilter; public import gtk.Fixed; public import gtk.FlowBox; public import gtk.FlowBoxAccessible; public import gtk.FlowBoxChild; public import gtk.FlowBoxChildAccessible; public import gtk.FontButton; public import gtk.FontChooserDialog; public import gtk.FontChooserIF; public import gtk.FontChooserT; public import gtk.FontChooserWidget; public import gtk.FontSelection; public import gtk.FontSelectionDialog; public import gtk.Frame; public import gtk.FrameAccessible; public import gtk.Gesture; public import gtk.GestureDrag; public import gtk.GestureLongPress; public import gtk.GestureMultiPress; public import gtk.GesturePan; public import gtk.GestureRotate; public import gtk.GestureSingle; public import gtk.GestureSwipe; public import gtk.GestureZoom; public import gtk.GLArea; public import gtk.Gradient; public import gtk.Grid; public import gtk.HandleBox; public import gtk.HBox; public import gtk.HButtonBox; public import gtk.HeaderBar; public import gtk.HPaned; public import gtk.HScale; public import gtk.HScrollbar; public import gtk.HSeparator; public import gtk.HSV; public import gtk.IconFactory; public import gtk.IconInfo; public import gtk.IconSet; public import gtk.IconSize; public import gtk.IconSource; public import gtk.IconTheme; public import gtk.IconView; public import gtk.IconViewAccessible; public import gtk.Image; public import gtk.ImageAccessible; public import gtk.ImageCellAccessible; public import gtk.ImageMenuItem; public import gtk.IMContext; public import gtk.IMContextSimple; public import
Re: GtkD nothing
On Thursday, 6 July 2017 at 01:06:38 UTC, FoxyBrown wrote: On Thursday, 6 July 2017 at 01:03:11 UTC, FoxyBrown wrote: On Thursday, 6 July 2017 at 00:51:40 UTC, FoxyBrown wrote: [...] Running it from the command line showed it wasn't finding the gtk dll. The path variable is set up correctly. I copied the bin dir to the exe and it ran and worked except for missing icons. Why is gtkD not finding gtk+ even though it is clearly in the path and correct? Copying over the share dir gets it to work but surely all this is avoidable? So, while the setup isn't smooth and not finding everything, do I really have to import every ui element or can I just import the entire gtk?
Re: GtkD nothing
On Thursday, 6 July 2017 at 01:03:11 UTC, FoxyBrown wrote: On Thursday, 6 July 2017 at 00:51:40 UTC, FoxyBrown wrote: [...] Running it from the command line showed it wasn't finding the gtk dll. The path variable is set up correctly. I copied the bin dir to the exe and it ran and worked except for missing icons. Why is gtkD not finding gtk+ even though it is clearly in the path and correct? Copying over the share dir gets it to work but surely all this is avoidable?
Re: GtkD nothing
On Thursday, 6 July 2017 at 00:51:40 UTC, FoxyBrown wrote:
import gtk.MainWindow;
import gtk.Label;
import gtk.Main;
import std.stdio;
pragma(lib, "C:\\DLang\\GtkD\\x86\\gtkd.lib");
void main(string[] args)
{
Main.init(args);
MainWindow win = new MainWindow("Hello World");
win.setDefaultSize(200, 100);
win.add(new Label("Hello World"));
win.showAll();
Main.run();
getchar();
}
Did all the steps, had to switch over from the 64-bit to the
32-bit dll of gtk+ to avoid errors(since i couldn't get gtkD to
compile for 64-bit).
The above code(copied from site) simply runs and exists, I
added the getchar but it doesn't seem to be executed. a BP on
the first line is never reached, no errors, nothing, to help
diagnose the issues.
Any ideas?
Running it from the command line showed it wasn't finding the gtk
dll. The path variable is set up correctly. I copied the bin dir
to the exe and it ran and worked except for missing icons. Why is
gtkD not finding gtk+ even though it is clearly in the path and
correct?
GtkD nothing
import gtk.MainWindow;
import gtk.Label;
import gtk.Main;
import std.stdio;
pragma(lib, "C:\\DLang\\GtkD\\x86\\gtkd.lib");
void main(string[] args)
{
Main.init(args);
MainWindow win = new MainWindow("Hello World");
win.setDefaultSize(200, 100);
win.add(new Label("Hello World"));
win.showAll();
Main.run();
getchar();
}
Did all the steps, had to switch over from the 64-bit to the
32-bit dll of gtk+ to avoid errors(since i couldn't get gtkD to
compile for 64-bit).
The above code(copied from site) simply runs and exists, I added
the getchar but it doesn't seem to be executed. a BP on the first
line is never reached, no errors, nothing, to help diagnose the
issues.
Any ideas?
rdmd issues
rdmd -m64 Build.d Error: can't run 'C:\Program Files\VS\VC\Tools\MSVC\14.10.25017\bin\HostX64\x64', check PATH The path exists, but since it doesn't tell me what it is trying to run, I have no clue. The path contains link.exe.
Re: Need simple sound
On Tuesday, 4 July 2017 at 20:37:44 UTC, Sebastiaan Koppe wrote: On Monday, 3 July 2017 at 08:55:20 UTC, Martin Tschierschke wrote: Hello for a simple game I would like to add some very simple sound, not much different than the beeps of "PAC Man". Is there anything I can use for this? Portaudio is simple as well. And nice cross platform. are there any bindings?
Re: Finding all the interfaces and their inheritance relationships at runtime
On Monday, 3 July 2017 at 20:45:19 UTC, bauss wrote:
On Monday, 3 July 2017 at 13:54:42 UTC, Jean-Louis Leroy wrote:
I know how to find all the classes:
foreach (mod; ModuleInfo) {
foreach (c; mod.localClasses) {
// use c.base to construct inheritance graph
}
}
Can I do the same with all the interfaces? Looking at object.d
gives no clue...
Is there a reason you need to do it with runtime and can't use
__traits?
He didn't say *with* runtime but *at*. Changes the whole meaning
;)
Re: Strange Bug in LDC vs DMD
On Friday, 30 June 2017 at 20:13:37 UTC, H. S. Teoh wrote: On Fri, Jun 30, 2017 at 07:57:22PM +, FoxyBrown via Digitalmars-d-learn wrote: [...] [...] Um... the docs explicit say that dirEntries is lazy, did you not see that? [...] It is possible that dmd has the same problem but I did not see it. What I did was develop it using dmd then once it was working went to release ldc and saw that it immediately did not have the same results and the results were wrong. Since I was debugging it the whole time and it was working fine with dmd, I simply assumed dmd was working. Since it is a lazy range, I'm sure that is the problem.
Natural Sort optimzation
Spent the last hour trying to get a natural sort. Ended up having
to create my own(not sure if it's 100% correct though but works
in practice). The Rosetta one is not correct.
Here is my implementation, anyone care to perfect it?
// Compares the strings a and b numerically, e.g., "04038284" and
"02" returns 1, the first is larger.
int compareStringNum(string a, string b)
{
// Remove leading 0's
a = a.stripLeft('0');
b = b.stripLeft('0');
if (a.length > b.length) return 1;
if (a.length < b.length) return -1;
auto m = a.length;
for(int i = 0; i < m; i++)
{
auto qqx = a[i];
auto qqy = b[i];
// Assume ascii comparision holds, i.e., '0' < '1' < ... < '9'
if (a[i] > b[i]) return 1;
if (a[i] < b[i]) return -1;
}
return 0;
}
string[] naturalSort(string[] arr) /*pure @safe*/
{
alias myComp = (x, y) {
auto ml = min(x.length, y.length)-1;
auto ofsx = -1; auto ofsy = -1;
auto numx_found = -1;
auto numy_found = -1;
for(int i = 0; i < ml; i++)
{
ofsx++;
ofsy++;
// If we have not found any numbers(that are not the same) and
we have a difference, the strings must be different, fall back on
standard character comparer
if (!isDigit(x[ofsx]) && !isDigit(y[ofsy]) && x[ofsx] !=
y[ofsy] && numx_found < 0 && numy_found < 0)
return x[ofsx] > y[ofsy];
// We are at a position in the string where either we are at
the end of a digit sequence or the characters have been identical
up to this point
if (isDigit(x[ofsx]) && numx_found < 0) numx_found =
ofsx;
if (isDigit(y[ofsy]) && numy_found < 0) numy_found =
ofsy;
if (!isDigit(x[ofsx]) && !isDigit(y[ofsy]) && numx_found >= 0
&& numy_found >= 0)
{
auto numx = x[numx_found..ofsx];
auto numy = y[numy_found..ofsy];
auto res = compareStringNum(numx, numy);
if (res != 0) return (res != 1);
}
if (!isDigit(x[ofsx]) && !isDigit(y[ofsy]))
{
numx_found = -1;
numy_found = -1;
} else
{
if (!isDigit(x[ofsx]) && numx_found >= 0)
ofsx--;
if (!isDigit(y[ofsy]) && numy_found >= 0)
ofsy--;
}
}
return x > y;
};
auto x = arr.sort!(myComp).release;
return x;
}
Re: Strange Bug in LDC vs DMD
On Friday, 30 June 2017 at 17:32:33 UTC, H. S. Teoh wrote:
On Fri, Jun 30, 2017 at 12:50:24PM +, FoxyBrown via
Digitalmars-d-learn wrote:
I am using dirEntries to iterate over files to rename them.
I am renaming them in a loop(will change but added code for
testing).
In DMD the renaming works but in LDC the renaming fails. It
fails in a way that I can't quite tell and I cannot debug
because visual D is not working properly for LDC.
The code essentially look like the following:
auto dFiles = dirEntries(loc, mask, _mode);
foreach (d; dFiles)
{
auto newName = Recompute(d.name)
writeln(newName);
rename(d.name, newName);
}
but when I comment out rename, it works under LDC.
The funny thing is, newName is printed wrong so Recompute is
effected by the rename.
This shouldn't occur.
[...]
This sounds very strange. What exactly do you mean by "newName
is printed wrong"? Do you mean that somehow it's getting
affected by the *subsequent* rename()? That would be truly
strange. Or do you mean that newName doesn't match what you
expect Recompute to do given d.name? Perhaps you should also
print out d.name along with newName just to be sure?
Do you have a reduced code example that's compilable/runnable?
It's rather hard to tell what's wrong based on your incomplete
snippet.
T
No, if I simply comment out the rename line, then the writeln
output changes. Simple as that. No other logic changes in the
code.
This means that the rename is affecting the output. The recompute
code gets the filename, does a computation on it, then returns
it.. prints it out, then renames that file to the newly computed
file name.
The only way this can happen is if the rename command is somehow
feeding back in to the algorithm. Since the problem goes away
when I pre-compute dirEntries, it suggests that dirEntries is
being lazily computed. If that is the case, then the problem is
easily understood: The file gets renamed, dirEntries reiterates
over the file, then it gets recomputed again, but this time the
result is bogus because it is a double recompute, which is
meaningless in this program.
I'm pretty sure that the analysis above is correct, that is,
dirEntries is lazy and ends up picking up the renamed file. This
is sort of like removing an element in an array while iterating
over the array.
The odd thing is, is that DMD does not produce the same result. I
do not know if there is a different in the LDC vs DMD dirEntries
code(or lazily evaluated code in general) or if it has to do with
speed(possibly the renames are cached and do not show up
immediately to dirEntries with the slower DMD?).
I do not have any simplified code and I'm moving on from here. It
should be easy to mock something up. The main thing to do is to
rename the files based on something in the file name.
e.g., suppose you have the files 1,2,3,4,5 (that is there names)
and extract and multiply the filenames by 10. (that is your
recompute function).
You should end up with 10,20,30,40,50.
But if the cause of issue I'm describing is in fact true, one
don't necessarily get that because some files will be iterated
more than once. e.g., maybe 10, 100, 1000, 20, 200, 30, 40, 50,
500.
I am doing it over a lot of files btw, but that is essentially
what is going on. The example above should be easy to do since
one can simply to!int the filename and then multiply it by 10 and
then rename that.
I have moved on to avoid dirEntries completely and simply use the
os directory listing function manually to extract the data but
this should be investigated as it if it the behavior is what I am
describing, a serious bug exists somewhere. (if someone could
confirm that dirEntries is a lazy range, then it would explain
the problem, but not necessarily why dmd and ldc differ, (dmd
seeming to function as expected)).
Re: Strange Bug in LDC vs DMD
On Friday, 30 June 2017 at 15:07:29 UTC, Murzistor wrote: On Friday, 30 June 2017 at 12:50:24 UTC, FoxyBrown wrote: The funny thing is, newName is printed wrong so Recompute is effected by the rename. Does LDC use Unicode? Or, maybe, standard library under LDC does not support Unicode - then it is a serious bug. Do you use any non-ASCII symbols? Maybe, the Recompute() function returns a non-unicode string under LDC? None of these reasons make sense. They do not take in to account that simply pre-evaluating dirEntries causes it to work nor the fact that I said that commenting the rename out also works.
Strange Bug in LDC vs DMD
I am using dirEntries to iterate over files to rename them.
I am renaming them in a loop(will change but added code for
testing).
In DMD the renaming works but in LDC the renaming fails. It fails
in a way that I can't quite tell and I cannot debug because
visual D is not working properly for LDC.
The code essentially look like the following:
auto dFiles = dirEntries(loc, mask, _mode);
foreach (d; dFiles)
{
auto newName = Recompute(d.name)
writeln(newName);
rename(d.name, newName);
}
but when I comment out rename, it works under LDC.
The funny thing is, newName is printed wrong so Recompute is
effected by the rename.
This shouldn't occur.
Now, dirEntries is a range, so I'm curious if the recomputation
is occurring after the rename(if it did then the recomputation
would be invalid and produce the results it is producing)?
When I forcably convert dirEntries in to an array(manually,
unfortunately, as I can't seem to use array() on dirEntries),
everything works).
struct file { public string name; }
auto dFiles = dirEntries(loc, mask, _mode);
file[] files;
foreach (d; dFiles)
{
file f;
f.name = d.name;
files ~= f;
}
foreach (d; files)
{
auto newName = Recompute(d.name)
writeln(newName);
rename(d.name, newName);
}
While it works, the main issue is that a different behavior is
observed between DMD and LDC in the first case.
It would be nice to know how to simplify the code though so
"lazy" evaluation of dirEntries did not occur.
Clean Executable
How can we clean an exe from the junk library functions that are not actually used by an app. e.g., a hello world program shouldn't be 500+kb. I release there are necessary extras like the GC, but hell, in a hello world program is it even necessary? Does Writeln even use the GC to display a single string? Seems like D just does not optimize the binaries size. I know it's only 500kb, but still.
Targetting the 8051
Is it possible? Using LDC or GCC? I do not need any libraries, druntime, etc. Just bare bones with the nice D meta features(templates, etc).
