31 lines
724 B
C++
31 lines
724 B
C++
// RUN: %clangxx_tsan %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s
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// bench.h needs pthread barriers which are not available on OS X
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// UNSUPPORTED: darwin
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#include "bench.h"
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pthread_mutex_t *mtx;
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const int kStride = 16;
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void thread(int tid) {
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for (int i = 0; i < bench_niter; i++) {
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pthread_mutex_lock(&mtx[tid * kStride]);
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pthread_mutex_unlock(&mtx[tid * kStride]);
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}
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}
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void bench() {
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mtx = (pthread_mutex_t*)malloc(bench_nthread * kStride * sizeof(*mtx));
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for (int i = 0; i < bench_nthread; i++) {
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pthread_mutex_init(&mtx[i * kStride], 0);
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pthread_mutex_lock(&mtx[i * kStride]);
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pthread_mutex_unlock(&mtx[i * kStride]);
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}
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start_thread_group(bench_nthread, thread);
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}
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// CHECK: DONE
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