Mercurial > sdl-ios-xcode
annotate test/testsem.c @ 2049:5f6550e5184f
Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Tue, 17 Oct 2006 09:15:21 +0000 |
parents | c121d94672cb |
children | d547877e355e |
rev | line source |
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0 | 1 |
2 /* Simple test of the SDL semaphore code */ | |
3 | |
4 #include <stdio.h> | |
5 #include <stdlib.h> | |
6 #include <signal.h> | |
7 | |
8 #include "SDL.h" | |
9 #include "SDL_thread.h" | |
10 | |
11 #define NUM_THREADS 10 | |
12 | |
13 static SDL_sem *sem; | |
14 int alive = 1; | |
15 | |
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16 int SDLCALL |
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17 ThreadFunc(void *data) |
0 | 18 { |
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19 int threadnum = (int) (uintptr_t) data; |
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20 while (alive) { |
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21 SDL_SemWait(sem); |
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22 fprintf(stderr, |
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23 "Thread number %d has got the semaphore (value = %d)!\n", |
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24 threadnum, SDL_SemValue(sem)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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25 SDL_Delay(200); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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26 SDL_SemPost(sem); |
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27 fprintf(stderr, |
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28 "Thread number %d has released the semaphore (value = %d)!\n", |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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29 threadnum, SDL_SemValue(sem)); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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30 SDL_Delay(1); /* For the scheduler */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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31 } |
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32 printf("Thread number %d exiting.\n", threadnum); |
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33 return 0; |
0 | 34 } |
35 | |
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36 static void |
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37 killed(int sig) |
0 | 38 { |
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39 alive = 0; |
0 | 40 } |
41 | |
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42 int |
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43 main(int argc, char **argv) |
0 | 44 { |
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45 SDL_Thread *threads[NUM_THREADS]; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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46 uintptr_t i; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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47 int init_sem; |
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48 |
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49 if (argc < 2) { |
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50 fprintf(stderr, "Usage: %s init_value\n", argv[0]); |
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51 return (1); |
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52 } |
0 | 53 |
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54 /* Load the SDL library */ |
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55 if (SDL_Init(0) < 0) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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56 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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57 return (1); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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58 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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59 signal(SIGTERM, killed); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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60 signal(SIGINT, killed); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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61 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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62 init_sem = atoi(argv[1]); |
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63 sem = SDL_CreateSemaphore(init_sem); |
0 | 64 |
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65 printf("Running %d threads, semaphore value = %d\n", NUM_THREADS, |
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parents:
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66 init_sem); |
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67 /* Create all the threads */ |
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68 for (i = 0; i < NUM_THREADS; ++i) { |
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69 threads[i] = SDL_CreateThread(ThreadFunc, (void *) i); |
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70 } |
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71 |
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72 /* Wait 10 seconds */ |
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73 SDL_Delay(10 * 1000); |
0 | 74 |
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75 /* Wait for all threads to finish */ |
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76 printf("Waiting for threads to finish\n"); |
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77 alive = 0; |
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78 for (i = 0; i < NUM_THREADS; ++i) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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79 SDL_WaitThread(threads[i], NULL); |
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parents:
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80 } |
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81 printf("Finished waiting for threads\n"); |
0 | 82 |
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83 SDL_DestroySemaphore(sem); |
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84 SDL_Quit(); |
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85 return (0); |
0 | 86 } |