Re: Threading Questions

On Friday, 9 October 2015 at 04:04:42 UTC, bitwise wrote: Ah, I see. I thought you meant illegal meant it won't compile. Wouldn't it be more correct to say that it's undefined behaviour? I's probably not as undefined as in C case, i.e. it doesn't break safety guarantees, only the

Re: Threading Questions

On Thursday, 8 October 2015 at 02:31:24 UTC, bitwise wrote: If you have System.Collections.Generic.List(T) static class member, there is nothing wrong with using it from multiple threads like this: The equivalent of your D example would be class Foo { static List numbers = new List();

Re: Threading Questions

On Thursday, 8 October 2015 at 10:11:38 UTC, Kagamin wrote: On Thursday, 8 October 2015 at 02:31:24 UTC, bitwise wrote: If you have System.Collections.Generic.List(T) static class member, there is nothing wrong with using it from multiple threads like this: The equivalent of your D example

Re: Threading Questions

On Thursday, 8 October 2015 at 13:44:46 UTC, bitwise wrote: That still doesn't explain what you mean about it being illegal in other languages or why you brought up C# in the first place. Illegal means the resulting program behaves incorrectly, potentially leading to silent failures and data

Re: Threading Questions

On Thursday, 8 October 2015 at 20:42:46 UTC, Kagamin wrote: On Thursday, 8 October 2015 at 13:44:46 UTC, bitwise wrote: That still doesn't explain what you mean about it being illegal in other languages or why you brought up C# in the first place. Illegal means the resulting program behaves

Re: Threading Questions

On Wednesday, 7 October 2015 at 09:09:36 UTC, Kagamin wrote: On Sunday, 4 October 2015 at 04:24:55 UTC, bitwise wrote: I use C#(garbage collected) for making apps/games, and while, _in_theory_, the GC is supposed to protect you from leaks, memory is not the only thing that can leak. Threads

Re: Threading Questions

On Sunday, 4 October 2015 at 04:24:55 UTC, bitwise wrote: I use C#(garbage collected) for making apps/games, and while, _in_theory_, the GC is supposed to protect you from leaks, memory is not the only thing that can leak. Threads need to be stopped, graphics resources need to be released,

Re: Threading Questions

On Monday, 5 October 2015 at 00:23:21 UTC, Jonathan M Davis wrote: On Sunday, October 04, 2015 14:42:48 bitwise via Digitalmars-d-learn wrote: Since D is moving towards a phobos with no GC, what will happen to things that are classes like Condition and Mutex? Phobos and druntime will always

Re: Threading Questions

On Monday, 5 October 2015 at 17:40:24 UTC, bitwise wrote: You may be right. I wrote a simple download manager in D using message passing. It was a little awkward at first, but in general, the spawn/send/receive API seems very intuitive. It feels awkward because the data you're working with is

Re: Threading Questions

On 10/5/15 1:40 PM, bitwise wrote: On Monday, 5 October 2015 at 00:23:21 UTC, Jonathan M Davis wrote: On Sunday, October 04, 2015 14:42:48 bitwise via Digitalmars-d-learn wrote: Since D is moving towards a phobos with no GC, what will happen to things that are classes like Condition and Mutex?

Re: Threading Questions

On Monday, 5 October 2015 at 20:18:18 UTC, Laeeth Isharc wrote: On Monday, 5 October 2015 at 17:40:24 UTC, bitwise wrote: You may be right. I wrote a simple download manager in D using message passing. It was a little awkward at first, but in general, the spawn/send/receive API seems very

Re: Threading Questions

On Wednesday, 30 September 2015 at 10:32:01 UTC, Jonathan M Davis wrote: On Tuesday, September 29, 2015 22:38:42 Johannes Pfau via Digitalmars-d-learn wrote: [...] What I took from the answers to that SO question was that in general, it really doesn't matter whether a condition variable has

Re: Threading Questions

On Tuesday, 29 September 2015 at 23:20:31 UTC, Steven Schveighoffer wrote: yeah, that could probably be done. One thing to note is that these classes are from ages ago (probably close to 10 years). New API suggestions may be allowed. -Steve I'm still thinking about my last rant, here...

Re: Threading Questions

On Sunday, October 04, 2015 14:42:48 bitwise via Digitalmars-d-learn wrote: > Since D is moving towards a phobos with no GC, what will happen > to things that are classes like Condition and Mutex? Phobos and druntime will always use the GC for some things, and some things just plain need classes.

Re: Threading Questions

On Tuesday, 29 September 2015 at 19:10:58 UTC, Steven Schveighoffer wrote: An object that implements the Monitor interface may not actually be a mutex. For example, a pthread_cond_t requires a pthread_mutex_t to operate properly. Right! I feel like I should have caught the fact that

Re: Threading Questions

On Friday, 25 September 2015 at 15:19:27 UTC, bitwise wrote: I know that all global variables are TLS unless explicitly marked as 'shared', but someone once told me something about 'shared' affecting member variables in that accessing them from a separate thread would return T.init instead of

Re: Threading Questions

On Tuesday, September 29, 2015 22:38:42 Johannes Pfau via Digitalmars-d-learn wrote: > Am Tue, 29 Sep 2015 15:10:58 -0400 > schrieb Steven Schveighoffer : > > > > > > 3) Why do I have to pass a "Mutex" to "Condition"? Why can't I just > > > pass an "Object"? > > > > An object

Re: Threading Questions

On Tue, 2015-09-29 at 03:05 +, bitwise via Digitalmars-d-learn wrote: > On Monday, 28 September 2015 at 11:47:38 UTC, Russel Winder wrote: > > I hadn't answered as I do not have answers to the questions you > > ask. My reason: people should not be doing their codes using > > these low-level

Re: Threading Questions

On 9/29/15 4:38 PM, Johannes Pfau wrote: Am Tue, 29 Sep 2015 15:10:58 -0400 schrieb Steven Schveighoffer : 3) Why do I have to pass a "Mutex" to "Condition"? Why can't I just pass an "Object"? An object that implements the Monitor interface may not actually be a mutex.

Re: Threading Questions

Am Tue, 29 Sep 2015 15:10:58 -0400 schrieb Steven Schveighoffer : > > > 3) Why do I have to pass a "Mutex" to "Condition"? Why can't I just > > pass an "Object"? > > An object that implements the Monitor interface may not actually be a > mutex. For example, a

Re: Threading Questions

On 9/25/15 11:19 AM, bitwise wrote: Hey, I've got a few questions if anybody's got a minute. I'm trying to wrap my head around the threading situation in D. So far, things seem to be working as expected, but I want to verify my solutions. 1) Are the following two snippets exactly

Re: Threading Questions

I hadn't answered as I do not have answers to the questions you ask. My reason: people should not be doing their codes using these low-level shared memory techniques. Data parallel things should be using the std.parallelism module. Dataflow-style things should be using spawn and channels – akin to

Re: Threading Questions

On Monday, 28 September 2015 at 11:47:38 UTC, Russel Winder wrote: I hadn't answered as I do not have answers to the questions you ask. My reason: people should not be doing their codes using these low-level shared memory techniques. Data parallel things should be using the std.parallelism

Re: Threading Questions

Sorry I don't know the answers but these questions are interesting so BUMP ;) On Friday, 25 September 2015 at 15:19:27 UTC, bitwise wrote: 1) Are the following two snippets exactly equivalent(not just in observable behaviour)? a) Mutex mut; mut.lock(); scope(exit) mut.unlock(); b) Mutex

Threading Questions

Hey, I've got a few questions if anybody's got a minute. I'm trying to wrap my head around the threading situation in D. So far, things seem to be working as expected, but I want to verify my solutions. 1) Are the following two snippets exactly equivalent(not just in observable behaviour)?

Re: Threading Questions

Pretty please? :)