How to kill whole application if child thread raises an exception?
Thanks all. I gues I must rewrote my app to send exeptions to other threads, use non blocking io, etc, etc.
Re: Unresolved Symbols in a nanovg Library
I have a nice screen shot of the nanovg demo running. The old xeyes is a nice touch. I was excited to post the photo here but it looks like I cannot. I can tell by the animations that this will be precisely what I need to animate svg based instrumentation. I ended up making one more static library for iv\vfs. I also ended up editing iv\vfs\package.d to comment out the reference to arcs. I was getting tired of following the missing symbols down the rabbit hole. The ModuleInfoZ missing symbols were due to the package.d files in every case. I'll have to read up on those a bit more. Oh and, as the end user, that demo has me all impressed. :) Regards, Jason C. Wells
Re: Unresolved Symbols in a nanovg Library
On Thursday, 27 October 2016 at 02:12:34 UTC, Jason C. Wells wrote: I have no idea where this ModuleInfoZ thing is coming from. as Adam said, it means that it imports some module, and you didn't passed it to dmd. in this case, it is iv.nanovg.oui package (this is Blender-like GUI controls -- not a full GUI package, just GUI controls and some simple things). example is using that to draw OUI window to impress the end user. ;-) How do I fix the missing ModuleInfoZ symbol? just add everything from iv/nanovg/oui to dmd invocation. BTW, I am not ignoring you guys when I haven't used rdmd ( I tried briefly but got stuck) or specifying all *.d files on the command line (did that with some success). My learning process is very organic and trial and error. there is nothing wrong in that, of course. i keep telling about rdmd only 'cause it is easier to get at least *something* with it. but you'll eventually get it working with dmd too, and this is harder, but better way if you want to really grok the things. ;-)
Re: Unresolved Symbols in a nanovg Library
On Thursday, 27 October 2016 at 02:18:26 UTC, Jason C. Wells wrote: My learning process is very organic and trial and error. yeah, that's us too :) With time, knowing all the details is better - you'll learn a lot though the start can be slower. I usually keep my code simple, but there's a few fancy tricks mixed in too (like lazy imports or speculative modules...) so sometimes it is harder than you'd expect. Also, my "package" is more just a collection of independent modules you can add to your project and hack on than something intended to be compiled separately. So you're kinda going against the grain... but it is educational and you can make it work!
Re: Unresolved Symbols in a nanovg Library
On Thursday, 27 October 2016 at 02:12:34 UTC, Jason C. Wells wrote: Error 42: Symbol Undefined _D2iv6nanovg3oui12__ModuleInfoZ That means some module was imported but not compiled. You can run the `ddemangle` program that comes with dmd to translate it (or you'll get used to just reading it by eyeball - the pattern is _Dxyyy, repeated. The x is a number saying how long the next name is, and the yyy is the next part of the name. So 2iv6nanovg becomes iv.nanovg). That means the iv.nanovg.oui was imported somewhere but not compiled in. The example surely uses it. ModuleInfo is auto-generated by the compiler for each module. I am quite surprised that arsd is looking for iv\vfs\_something_. ketmar and I semi-collaborate... our stuff is independent, but we know a number of more advanced tricks to selectively import if a file is available on the system. So my jpeg.d (which was actually primarily authored by ketmar, well, he ported a C library and put an interface on top, then merged with my old jpg.d) will see if iv.vfs is available on the file system, and if it is, it will import it. That works well if you just download a few files at a time (which is how I generally distribute my libs, I say "download file.d and other.d"), but if you downloaded *everything*, it will see it is there and try to show additional features. But since you aren't compiling everything you have available, it sees it is there...but it isn't all built.
Re: Unresolved Symbols in a nanovg Library
BTW, I am not ignoring you guys when I haven't used rdmd ( I tried briefly but got stuck) or specifying all *.d files on the command line (did that with some success). My learning process is very organic and trial and error. I appreciate what you are doing for me. Thanks for the invite to chat on irc. I don't have an urgent need so I'll post here. Maybe other noobs will make use of this.
Re: Unresolved Symbols in a nanovg Library
Adding iv\stb\ttf.d cleared up most of the remaining linker errors. While compiling iv\nanovg_demo\example.d I am left with: bin\example.obj(example) Error 42: Symbol Undefined _D2iv6nanovg3oui12__ModuleInfoZ bin\example.obj(example) Error 42: Symbol Undefined _D2iv6nanovg12__ModuleInfoZ ..\..\..\lib\libarsd.lib(jpeg) Error 42: Symbol Undefined _D2iv3vfs12__ModuleInfoZ I have no idea where this ModuleInfoZ thing is coming from. I searched the sources for the string "ModuleInfoZ" but that string appears only in obj/def files. I suppose that the compile/linker adds this symbol to object files. How do I fix the missing ModuleInfoZ symbol? I am quite surprised that arsd is looking for iv\vfs\_something_. I should mention that I have been "picky" about which files I included on the dmd command line.
Re: Unresolved Symbols in a nanovg Library
On Thursday, 27 October 2016 at 01:48:54 UTC, Jason C. Wells wrote: arsd has ttf.d and stb_truetype.d. Comments in stb_truetype.d say use ttf.d instead. My ttf.d is just version 1.2 of stb_truetype.d basically... the two files are very similar and should be generally compatible. ketmar's ttf.d I think is about 95% the same (we both ported the same C library), but slightly different, including a different module name... so you should be able to compile in both my ttf.d and his ttf.d at the same time. Though I betcha his alone will be fine, or mine alone might be fine if you change the import statement (use `import arsd.ttf;` rather than `import iv.stb.ttf;`, the rest are probably compatible.)
Re: Unresolved Symbols in a nanovg Library
On Thursday, 27 October 2016 at 01:48:54 UTC, Jason C. Wells wrote: I'm not sure I fully understand name mangling, but it looks like nanovg wants to use iv\stb\ttf.d from it's own source tree. But Ketmar said "p.s. you will also need stb_ttf port, arsd repo has it under the name "ttf.d"." So which ttf.d should I use? Does it matter? it really doesn't, but you should have only one. ;-) the idea is that nanovg tries to import several stb_truetype ports (including iv.freetype bindings) and will use the first one that imported successfully. it is, again, works nice with rdmd and full IV repo, but may fail if you'll pass Adam's ttf.d in command line, while there is iv.ttf accessible on the disk. in this case importing of iv.ttf will succeed, but the code will be generated for arsd.ttf. oops. Perhaps Ketmar intended to remove his copy of ttf.d from his repo? quite the contrary. ;-) if anything resides in IV, then it is preferred thing to use with any IV modules. i strongly suggest you to move to rdmd, it can do most of such things for you. ;-) as for nanovg, the preferred is iv.freetype, actually. then iv.ttf, then arsd.ttf. btw, you can find me on IRC channel (and Adam too), and ask your questions in real-time (well, if we are online ;-).
Unresolved Symbols in a nanovg Library
I've gone about building static libraries for nanovg and arsd. (I'm feeling pretty good about what I've learned in the last couple days, so I gave it a whirl.) arsd has ttf.d and stb_truetype.d. Comments in stb_truetype.d say use ttf.d instead. nanovg has a ttf.d also. There are three ttf.d's to choose from. nanovg has linker errors: ..\..\..\lib\libnanovg.lib(nanovg) Error 42: Symbol Undefined _D2iv3stb3ttf25stbtt_ScaleForPixelHeightFPxS2iv3stb3ttf14stbtt_fontinfofZf I'm not sure I fully understand name mangling, but it looks like nanovg wants to use iv\stb\ttf.d from it's own source tree. But Ketmar said "p.s. you will also need stb_ttf port, arsd repo has it under the name "ttf.d"." So which ttf.d should I use? Does it matter? I've gained enough confidence in the last couple days to go ahead and use trial and error to sort this out. I thought I'd let you guys chime in. Perhaps Ketmar intended to remove his copy of ttf.d from his repo? Regards, Jason C. Wells
Re: [vibe.d] showing images
On Wednesday, 26 October 2016 at 18:39:00 UTC, Rene Zwanenburg wrote: On Wednesday, 26 October 2016 at 12:42:09 UTC, Nicholas Wilson wrote: [...] You need to make the images accessible over HTTP. Note the use of staticFileServer in the following example: http://vibed.org/docs#http-routing Thanks. I ended up getting rid if the class and using the get and post method on the router.
Re: [vibe.d] showing images
On Wednesday, 26 October 2016 at 12:42:09 UTC, Nicholas Wilson
wrote:
doctype html
html
body
-foreach(s; images)
// it doesn't seem to like #{s} or !{s}
img(src=s)
[...]
Inherit from Web interface?
Re: test for equality of the content of two AA
On 10/26/2016 08:03 AM, Paolo Invernizzi wrote:
As the subject states, what is the best idiomatic way for doing that?
Thanks in advance
/Paolo
If you mean D's AAs, then that is already implemented:
void main() {
auto a = [ "hello" : 1, "world" : 2 ];
auto b = [ "world" : 2, "hello" : 1 ];
assert(a == b);
}
The source makes sense:
https://github.com/dlang/druntime/blob/master/src/rt/aaA.d#L615
* First check that the lengths are equal
* Then check each element
The last step is already fast without needing any other data structure
(e.g. one may imagine a sorted array) because hash table lookup is O(1)
and there are N elements that needs to be processed (i.e. compared), so
the whole operation must be O(N).
If the equality comparison is very frequent, then a hash table that
maintains a hash of all keys and values can be used, which would be
O(1). (As far as I know D's AAs don't have such a feature.) This would
make the comparison of non-equal tables O(1) but if this overall hash
were equal between two tables, one would still have to compare every
element to be sure, which would be O(N).
Ali
Re: [vibe.d] showing images
On Wednesday, 26 October 2016 at 12:42:09 UTC, Nicholas Wilson
wrote:
doctype html
html
body
-foreach(s; images)
// it doesn't seem to like #{s} or !{s}
img(src=s)
--
shared static this()
{
auto router = new URLRouter;
router.registerWebInterface(new CamController);
auto settings = new HTTPServerSettings;
settings.port = 8081;
settings.bindAddresses = ["::1", "127.0.0.1"];
listenHTTP(settings, router);
}
class Controller
{
void index(HTTPServerRequest req, HTTPServerResponse res)
{
auto images =
dirEntries("public/images",SpanMode.breadth)
.map!(f=> f.name).array;
writeln(images); // ["public/images/testprog.jpg"]
res.render!("index.dt",images);
}
}
What am I missing? I just get a 404 for the image.
You need to make the images accessible over HTTP. Note the use of
staticFileServer in the following example:
http://vibed.org/docs#http-routing
Re: Map type to class instance at compile-time
On 10/26/2016 10:48 AM, pontius wrote:
> Apologies for the long post or stupid questions, I only started to learn
> D today.
Looking at what you've achieved in one day, we really need you! :)
> I have a use case where various types (A, B, C) need to be associated
> with instances of different classes (ManagerA, ManagerB, ManagerC). A
> certain object (globalManager) should redirect operations on those types
> to their respective managers at compile-time. I intend to use it in the
> following way:
>
> class GlobalManager(TypeToManagerMapping) {
> public void process(T)(T t) {
> // Must be resolved at compile-time
> TypeToManagerMapping.getManagerForType(T).process(t);
> }
> }
>
> // All these types can be completely unrelated, i.e. no base classes
> struct A {}
> alias ManagerA = DefaultManager!(A)
> struct B {}
> alias ManagerB = DefaultManager!(B)
> struct C {}
> alias ManagerC = SomeCustomManager;
>
> // Calls to globalManager should be redirected to these at compile-time
> auto mgrA = new ManagerA();
> auto mgrB = new ManagerB();
> auto mgrC = new ManagerC();
>
> // This is my problem, see below
> alias TypeToManagerMapping = ...;
>
> // Pass the mapping as a template parameter so that it can be resolved
> at compile-time
> auto globalManager = new GlobalManager!(TypeToManagerMapping)();
>
> // The following is the module user's code.
> // The user may not be aware of mgrA, mgrB, etc, only of globalManager
>
> A a = A();
> B b = B();
> C c = C();
>
> // Redirection to managers in the following operations
> // must be resolved at compile-time
>
> // Should turn into mgrA.process(a), etc
> globalManager.process(a);
> globalManager.process(b);
> globalManager.process(c);
void report(M, T)() {
import std.stdio : writefln;
writefln("%s is managing an object of %s", M.stringof, T.stringof);
}
class DefaultManager(T) {
void manage(T t) {
report!(typeof(this), T);
}
}
class SomeCustomManager {
void manage(C c) {
report!(SomeCustomManager, C);
}
}
struct A {}
alias ManagerA = DefaultManager!(A);
struct B {}
alias ManagerB = DefaultManager!(B);
struct C {}
alias ManagerC = SomeCustomManager;
/*/ You can use this:
alias TypeToManagerMapping = AliasSeq!(A, ManagerA,
B, ManagerB,
C, ManagerC);
However, if you already have symbolic mapping from T to ManagerT, you
can use string mixins as well
*/
template ManagerRegistrationFor(T) {
// Just a couple of convenience functions
string managerType() { return "Manager" ~ T.stringof; }
string managerName() { return "mng" ~ T.stringof; }
// This is the manager object
mixin(managerType() ~ ' ' ~ managerName() ~ ';');
// This is the initialization of it
static this() {
mixin(managerName() ~ `= new ` ~ managerType() ~ ';');
}
void manage(T obj) {
// Dispatches to the manager
mixin(managerName() ~ ".manage(obj);");
}
}
struct GlobalManager {
void process(T)(T t) {
manage(t);
}
}
GlobalManager globalManager;
mixin ManagerRegistrationFor!A;
mixin ManagerRegistrationFor!B;
mixin ManagerRegistrationFor!C;
/* The above could be specified with an AliasSeq (uncompiled):
alias ManagedTypes = AliasSeq!(A, B, C);
This loop can be inside a template like RegisterManagedTypes
foreach (T; ManagedTypes) {
mixin ManagerRegistrationFor!T;
}
And then:
mixin RegisterManagedTypes;
*/
void main() {
A a = A();
B b = B();
C c = C();
globalManager.process(a);
globalManager.process(b);
globalManager.process(c);
}
There are different approaches but I think the solution above achieves
what you want:
DefaultManager!(A) is managing an object of A
DefaultManager!(B) is managing an object of B
SomeCustomManager is managing an object of C
Ali
Map type to class instance at compile-time
Apologies for the long post or stupid questions, I only started
to learn D today.
I have a use case where various types (A, B, C) need to be
associated with instances of different classes (ManagerA,
ManagerB, ManagerC). A certain object (globalManager) should
redirect operations on those types to their respective managers
at compile-time. I intend to use it in the following way:
class GlobalManager(TypeToManagerMapping) {
public void process(T)(T t) {
// Must be resolved at compile-time
TypeToManagerMapping.getManagerForType(T).process(t);
}
}
// All these types can be completely unrelated, i.e. no base
classes
struct A {}
alias ManagerA = DefaultManager!(A)
struct B {}
alias ManagerB = DefaultManager!(B)
struct C {}
alias ManagerC = SomeCustomManager;
// Calls to globalManager should be redirected to these at
compile-time
auto mgrA = new ManagerA();
auto mgrB = new ManagerB();
auto mgrC = new ManagerC();
// This is my problem, see below
alias TypeToManagerMapping = ...;
// Pass the mapping as a template parameter so that it can be
resolved at compile-time
auto globalManager = new GlobalManager!(TypeToManagerMapping)();
// The following is the module user's code.
// The user may not be aware of mgrA, mgrB, etc, only of
globalManager
A a = A();
B b = B();
C c = C();
// Redirection to managers in the following operations
// must be resolved at compile-time
// Should turn into mgrA.process(a), etc
globalManager.process(a);
globalManager.process(b);
globalManager.process(c);
So, I need to map a type (e.g. A) to an instance (e.g. mgrA). I
have managed to implement a compile-time map from type to value
(by the way, how do I get rid of TValue argument in
TypeValuePair? it can be deduced, but I failed to get it working
with an eponymous template):
struct TypeValuePair(TKey_, TValue, TValue value_) {
alias TKey = TKey_;
static const TValue value = value_;
}
struct StaticMap(THead, Args...) {
template get(T) {
static if (Args.length < 0) {
static assert(false, "StaticMap does not contain this
key");
} else static if (is(T == THead.TKey)) {
alias get = THead.value;
} else {
alias get = StaticMap!(Args).get!(T);
}
}
}
This works nicely for mapping types to literal values:
alias TypeMap = StaticMap!(
TypeValuePair!(string, string, "a string"),
TypeValuePair!(int, string, "an int"),
TypeValuePair!(bool, string, "a bool")
);
writeln(TypeMap.get!(int));
But fails with "variable cannot be read at compile-time" when I
try to pass a class instance in there:
alias TypeMap = StaticMap!(
TypeValuePair!(A, ManagerA, mgrA)
);
TypeMap.get!(A).process(a);
So, how do I resolve type-to-instance mapping at compile-time so
that my user only needs to call globalManager and not know
anything about individual managers?
I could easily do this with typeid() calls, but the solution must
be purely compile-time (for learning purposes; let's say my code
is performance-critical and the lookup would take considerable
amount of time).
test for equality of the content of two AA
As the subject states, what is the best idiomatic way for doing that? Thanks in advance /Paolo
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 10:03:30 UTC, dm wrote: Why so strange default behavior do not kill other threads in case some of threads raise exception? But thanks anyway. AFAIK, on posix you should join the child thread, and when you do, the stored exception is rethrown in the joining thread.
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 08:42:02 UTC, dm wrote: I want to kill all my threads if it is unhandled exception. How can I do that? The spawnLinked function might help: http://dpldocs.info/experimental-docs/std.concurrency.spawnLinked.html http://dlang.org/phobos/std_concurrency.html#spawnLinked " This new thread is linked to the calling thread so that if either it or the calling thread terminates a LinkTerminated message will be sent to the other, causing a LinkTerminated exception to be thrown on receive()." At least that sounds basically right.
Re: [vibe.d] showing images
On Wednesday, 26 October 2016 at 12:57:24 UTC, wobbles wrote: On Wednesday, 26 October 2016 at 12:42:09 UTC, Nicholas Wilson wrote: [...] When you get the 404, do you see the contents of 'writeln(images);' in your terminal? yes. the 404 is only for the image the page still renders fine, but the image is replaced by the missing image image.
Re: [vibe.d] showing images
On Wednesday, 26 October 2016 at 12:42:09 UTC, Nicholas Wilson wrote: [...] When you get the 404, do you see the contents of 'writeln(images);' in your terminal?
[vibe.d] showing images
doctype html
html
body
-foreach(s; images)
// it doesn't seem to like #{s} or !{s}
img(src=s)
--
shared static this()
{
auto router = new URLRouter;
router.registerWebInterface(new CamController);
auto settings = new HTTPServerSettings;
settings.port = 8081;
settings.bindAddresses = ["::1", "127.0.0.1"];
listenHTTP(settings, router);
}
class Controller
{
void index(HTTPServerRequest req, HTTPServerResponse res)
{
auto images = dirEntries("public/images",SpanMode.breadth)
.map!(f=> f.name).array;
writeln(images); // ["public/images/testprog.jpg"]
res.render!("index.dt",images);
}
}
What am I missing? I just get a 404 for the image.
Re: Neural Networks / ML Libraries for D
On Tuesday, 25 October 2016 at 13:56:45 UTC, Saurabh Das wrote: On Tuesday, 25 October 2016 at 11:55:27 UTC, maarten van damme wrote: There is mir https://github.com/libmir/mir which is geared towards machine learning, I don't know if it has anything about neural networks, I've yet to use it. If you're only interested in neural networks, I've used FANN (a C library) together with D and it worked very well. 2016-10-25 13:17 GMT+02:00 Saurabh Das via Digitalmars-d-learn < digitalmars-d-learn@puremagic.com>: Hello, Are there any good ML libraries for D? In particular, looking for a neural network library currently. Any leads would be appreciated. Thanks, Saurabh I saw mir but it didn't seem to have anything for NNs. I'll give FANN a try. https://github.com/ljubobratovicrelja/mir.experimental.model.rbf
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 08:42:02 UTC, dm wrote:
Hi. I tried code below:
import std.concurrency;
import std.stdio;
void func()
{
throw new Exception("I'm an exception");
}
void main()
{
auto tID = spawn();
foreach(line; stdin.byLine)
send(tID, "");
}
I expect my application will die immediatly, but main thread
still running and I don't see any errors.
I want to kill all my threads if it is unhandled exception.
How can I do that?
You need to link the threads, and at least one receive after the
child thread has implicitly sent the exception to the main thread:
import std.concurrency;
import std.stdio;
---
void func()
{
throw new Exception("I'm an exception");
}
void main()
{
auto tID = spawnLinked();
receive((int dummy){});
}
---
/Paolo
Re: Avoiding GC
On Wednesday, 26 October 2016 at 08:18:07 UTC, hardreset wrote: Is there a page somewhere on how to program D without using the GC? How do I allocate / free structs / classes on the heap manually? New would be GCed memeory wouldnt it? Delete is being depreciated? thanks. There is the following: https://wiki.dlang.org/Memory_Management
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 10:09:05 UTC, rikki cattermole wrote: If you throw an error it should crash the entire application. But really you need to set up sync points within your application to allow it to die gracefully. I tried throw new Error... But main thread still working. Tried with dmd v2.071.2 and ldc2 0.17.2. OS - Linux.
Re: How to kill whole application if child thread raises an exception?
On 26/10/2016 11:03 PM, dm wrote:
On Wednesday, 26 October 2016 at 09:43:10 UTC, rikki cattermole wrote:
```D
void entryPoint(alias func)() {
try {
func();
} catch (Exception e) {
import std.stdio;
writeln(e.toString());
}
}
void main() {
auto tid = spawn(!someFunc);
// ...
}
```
Well... This code shows me:
object.Exception@thread.d(6): I'm an exception
But my main thread still working :(
Why so strange default behavior do not kill other threads in case some
of threads raise exception?
But thanks anyway.
If you throw an error it should crash the entire application.
But really you need to set up sync points within your application to
allow it to die gracefully.
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 09:43:10 UTC, rikki cattermole
wrote:
```D
void entryPoint(alias func)() {
try {
func();
} catch (Exception e) {
import std.stdio;
writeln(e.toString());
}
}
void main() {
auto tid = spawn(!someFunc);
// ...
}
```
Well... This code shows me:
object.Exception@thread.d(6): I'm an exception
But my main thread still working :(
Why so strange default behavior do not kill other threads in case
some of threads raise exception?
But thanks anyway.
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 09:43:10 UTC, rikki cattermole
wrote:
Basically when you spawn a thread giving the function, you pass
it through another function which will catch any exceptions not
normally caught.
Of course this really should be the default behavior but
somebody else may be more of a help here.
And it is pseudo code, so please don't expect it to 100% work
as I have written it.
```D
void entryPoint(alias func)() {
try {
func();
} catch (Exception e) {
import std.stdio;
writeln(e.toString());
}
}
void main() {
auto tid = spawn(!someFunc);
// ...
}
```
It doesn't return. It still have to be killed by hand. (at least
on Linux)
Re: How to kill whole application if child thread raises an exception?
Basically when you spawn a thread giving the function, you pass it
through another function which will catch any exceptions not normally
caught.
Of course this really should be the default behavior but somebody else
may be more of a help here.
And it is pseudo code, so please don't expect it to 100% work as I have
written it.
```D
void entryPoint(alias func)() {
try {
func();
} catch (Exception e) {
import std.stdio;
writeln(e.toString());
}
}
void main() {
auto tid = spawn(!someFunc);
// ...
}
```
Re: How to kill whole application if child thread raises an exception?
On Wednesday, 26 October 2016 at 08:53:13 UTC, rikki cattermole wrote: Simple, handle the exceptions on each thread. I don't want handle exceptions. I want my application crash with exception description. Can you change my code above to show how it can be made?
Re: How to kill whole application if child thread raises an exception?
On 26/10/2016 9:42 PM, dm wrote:
Hi. I tried code below:
import std.concurrency;
import std.stdio;
void func()
{
throw new Exception("I'm an exception");
}
void main()
{
auto tID = spawn();
foreach(line; stdin.byLine)
send(tID, "");
}
I expect my application will die immediatly, but main thread still
running and I don't see any errors.
I want to kill all my threads if it is unhandled exception.
How can I do that?
Simple, handle the exceptions on each thread.
How to kill whole application if child thread raises an exception?
Hi. I tried code below:
import std.concurrency;
import std.stdio;
void func()
{
throw new Exception("I'm an exception");
}
void main()
{
auto tID = spawn();
foreach(line; stdin.byLine)
send(tID, "");
}
I expect my application will die immediatly, but main thread
still running and I don't see any errors.
I want to kill all my threads if it is unhandled exception.
How can I do that?
Re: Avoiding GC
On Wednesday, 26 October 2016 at 08:18:07 UTC, hardreset wrote: Is there a page somewhere on how to program D without using the GC? How do I allocate / free structs / classes on the heap manually? New would be GCed memeory wouldnt it? Delete is being depreciated? thanks. Probably you want to read: https://dlang.org/phobos/std_experimental_allocator.html Anyway GC works really good for common software development.
Avoiding GC
Is there a page somewhere on how to program D without using the GC? How do I allocate / free structs / classes on the heap manually? New would be GCed memeory wouldnt it? Delete is being depreciated? thanks.
Re: Module Name Resolution
On Wednesday, 26 October 2016 at 05:46:30 UTC, ketmar wrote: this is a repository name. it is supposed to be named just "iv", and git names main directory by repository name if you are doing a simple clone. my bad, i should have made that clear. Ok. That helps.
