// Regression test for http://llvm.org/bugs/show_bug.cgi?id=21621
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// This test relies on timing between threads, so any failures will be flaky.
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// RUN: %clangxx_lsan %s -o %t
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// RUN: LSAN_OPTIONS="log_pointers=1:log_threads=1" %run %t
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#include <assert.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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bool flag = false;
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void *func(void *arg) {
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// This mutex will never be grabbed.
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fprintf(stderr, "entered func()\n");
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pthread_mutex_lock(&mutex);
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free(arg);
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pthread_mutex_unlock(&mutex);
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return 0;
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}
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void create_detached_thread() {
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pthread_t thread_id;
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pthread_attr_t attr;
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pthread_attr_init(&attr);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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void *arg = malloc(1337);
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assert(arg);
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// This mutex is never unlocked by the main thread.
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pthread_mutex_lock(&mutex);
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int res = pthread_create(&thread_id, &attr, func, arg);
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assert(res == 0);
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}
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int main() {
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create_detached_thread();
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}
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