forked from OSchip/llvm-project
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// RUN: %clangxx_msan -std=c++11 -O0 %s -o %t && %run %t
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// The main goal is getting the pthread name back and
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// FreeBSD based do not support this feature
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// UNSUPPORTED: android, freebsd
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// Regression test for a deadlock in pthread_getattr_np
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#include <assert.h>
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#include <pthread.h>
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#include <string.h>
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#include <sanitizer/msan_interface.h>
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#include <stdio.h>
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// Stall child thread on this lock to make sure it doesn't finish
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// before the end of the pthread_getname_np() / pthread_setname_np() tests.
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static pthread_mutex_t lock;
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void *ThreadFn(void *) {
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pthread_mutex_lock (&lock);
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pthread_mutex_unlock (&lock);
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return nullptr;
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}
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int main(void) {
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pthread_t t;
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pthread_mutex_init (&lock, NULL);
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pthread_mutex_lock (&lock);
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int res = pthread_create(&t, 0, ThreadFn, 0);
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assert(!res);
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const char *kMyThreadName = "my-thread-name";
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#if defined(__NetBSD__)
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res = pthread_setname_np(t, "%s", (void *)kMyThreadName);
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#else
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res = pthread_setname_np(t, kMyThreadName);
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#endif
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assert(!res);
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char buf[100];
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res = pthread_getname_np(t, buf, sizeof(buf));
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assert(!res);
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assert(strcmp(buf, kMyThreadName) == 0);
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pthread_mutex_unlock (&lock);
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res = pthread_join(t, 0);
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assert(!res);
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return 0;
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}
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