ADTast-experimentalpthread-emulation
Last change
on this file since 20be782 was
20be782,
checked in by z277zhu <z277zhu@…>, 2 years ago
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add pthread
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-
Property mode set to
100644
|
File size:
5.8 KB
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1 | #ifndef _OPEN_THREADS |
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2 | #define _OPEN_THREADS |
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3 | #endif |
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4 | |
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5 | |
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6 | |
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7 | #include <fstream.hfa> |
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8 | #include <thread.hfa> |
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9 | #define THREADS 20 |
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10 | |
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11 | extern "C"{ |
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12 | #include <pthread.h> |
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13 | #include <stdio.h> |
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14 | #include <errno.h> |
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15 | int once_counter=0; |
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16 | pthread_once_t once_control = PTHREAD_ONCE_INIT; |
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17 | |
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18 | void once_fn(void) |
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19 | { |
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20 | puts("in once_fn"); |
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21 | once_counter++; |
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22 | } |
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23 | |
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24 | void *threadfunc(void *parm) |
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25 | { |
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26 | int status; |
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27 | int threadnum; |
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28 | int *tnum; |
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29 | |
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30 | tnum = (int *)parm; |
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31 | threadnum = *tnum; |
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32 | |
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33 | //printf("Thread %d executing\n", threadnum); |
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34 | |
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35 | status = pthread_once(&once_control, once_fn); |
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36 | if ( status < 0) |
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37 | printf("pthread_once failed, thread %d, errno=%d\n", threadnum, |
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38 | errno); |
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39 | |
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40 | //pthread_exit((void *)0); |
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41 | return NULL; |
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42 | } |
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43 | |
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44 | |
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45 | void once_rtn(){ |
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46 | printf("in once init\n"); |
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47 | } |
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48 | void test(){ |
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49 | |
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50 | processor p[10]; |
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51 | |
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52 | |
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53 | int status; |
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54 | int i; |
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55 | int threadparm[THREADS]; |
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56 | pthread_t threadid[THREADS]; |
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57 | void* thread_stat[THREADS]; |
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58 | |
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59 | for (i=0; i<THREADS; i++) { |
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60 | threadparm[i] = i+1; |
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61 | status = pthread_create( &threadid[i], |
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62 | NULL, |
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63 | threadfunc, |
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64 | (void *)&threadparm[i]); |
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65 | if ( status < 0) { |
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66 | printf("pthread_create failed, errno=%d", errno); |
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67 | exit(2); |
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68 | } |
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69 | } |
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70 | |
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71 | for ( i=0; i<THREADS; i++) { |
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72 | status = pthread_join( threadid[i], (void **)&thread_stat[i]); |
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73 | if ( status < 0) |
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74 | printf("pthread_join failed, thread %d, errno=%d\n", i+1, errno); |
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75 | |
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76 | if (thread_stat[i] != 0) |
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77 | printf("bad thread status, thread %d, status=%d\n", i+1, |
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78 | (int)thread_stat[i]); |
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79 | } |
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80 | |
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81 | if (once_counter != 1) { |
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82 | printf("once_fn did not get control once, counter=%d",once_counter); |
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83 | exit(1); |
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84 | } |
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85 | |
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86 | exit(0); |
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87 | |
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88 | } |
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89 | } |
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90 | |
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91 | |
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92 | |
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93 | int main(int argc, char const *argv[]) |
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94 | { |
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95 | test(); |
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96 | return 0; |
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97 | } |
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