Last change
on this file since 0f5e8cd was
c26bea2a,
checked in by Peter A. Buhr <pabuhr@…>, 15 months ago
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first attempt at renaming directory tests/concurrent to tests/concurrency to harmonize with other concurrency directory names
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-
Property mode set to
100644
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File size:
1.0 KB
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1 | /* small test of pthread cond */ |
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2 | |
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3 | #include <fstream.hfa> |
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4 | #include <thread.hfa> |
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5 | #include <pthread.h> |
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6 | |
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7 | int done_flag = 0; |
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8 | pthread_mutex_t _mutex; |
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9 | pthread_cond_t cond; |
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10 | |
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11 | extern "C"{ |
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12 | void* S1(void* arg){ |
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13 | pthread_mutex_lock(&_mutex); |
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14 | for (int i = 0; i < 1000; i++) sout | "S1 done " | i; |
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15 | done_flag = 1; |
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16 | pthread_mutex_unlock(&_mutex); |
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17 | pthread_cond_signal(&cond); |
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18 | return NULL; |
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19 | } |
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20 | |
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21 | void* S2(void* arg){ |
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22 | pthread_mutex_lock(&_mutex); |
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23 | if (!done_flag) pthread_cond_wait(&cond, &_mutex); |
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24 | sout | "S2 statement done!"; |
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25 | pthread_mutex_unlock(&_mutex); |
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26 | return NULL; |
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27 | } |
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28 | } |
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29 | |
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30 | |
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31 | |
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32 | int main(int argc, char const *argv[]) |
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33 | { |
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34 | /* code */ |
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35 | pthread_mutex_init(&_mutex, NULL); |
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36 | pthread_cond_init(&cond, NULL); |
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37 | pthread_t s1,s2; |
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38 | pthread_create(&s1, NULL, S1, NULL); |
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39 | pthread_create(&s2, NULL, S2, NULL); |
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40 | void* res = NULL; |
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41 | pthread_join(s1, &res); |
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42 | pthread_join(s2, &res); |
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43 | pthread_mutex_destroy(&_mutex); |
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44 | pthread_cond_destroy(&cond); |
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45 | return 0; |
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46 | } |
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