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Fix thread data races

This commit is contained in:
Martin Kroeker 2017-09-09 19:07:06 +02:00 committed by GitHub
parent e882f3d6f3
commit f460776f0f
1 changed files with 8 additions and 6 deletions
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14
driver/others/blas_server.c
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@ -669,9 +669,15 @@ int exec_blas_async(BLASLONG pos, blas_queue_t *queue){
} while (1); } while (1);
} else { } else {
while(thread_status[i].queue) { pthread_mutex_lock (&thread_status[i].lock);
tsiq = thread_status[i].queue;
pthread_mutex_unlock (&thread_status[i].lock);
while(tsiq) {
i ++; i ++;
if (i >= blas_num_threads - 1) i = 0; if (i >= blas_num_threads - 1) i = 0;
pthread_mutex_lock (&thread_status[i].lock);
tsiq = thread_status[i].queue;
pthread_mutex_unlock (&thread_status[i].lock);
} }
} }
#else #else
@ -960,14 +966,10 @@ int BLASFUNC(blas_thread_shutdown)(void){
for (i = 0; i < blas_num_threads - 1; i++) { for (i = 0; i < blas_num_threads - 1; i++) {
blas_lock(&exec_queue_lock); pthread_mutex_lock (&thread_status[i].lock);
thread_status[i].queue = (blas_queue_t *)-1; thread_status[i].queue = (blas_queue_t *)-1;
blas_unlock(&exec_queue_lock);
pthread_mutex_lock (&thread_status[i].lock);
thread_status[i].status = THREAD_STATUS_WAKEUP; thread_status[i].status = THREAD_STATUS_WAKEUP;
pthread_cond_signal (&thread_status[i].wakeup); pthread_cond_signal (&thread_status[i].wakeup);