diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
commit | ca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch) | |
tree | 9b19e801150082c33e9152275829a6ce90614b55 /test/tsan/fd_dup_norace.cc | |
parent | 8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff) |
Notes
Diffstat (limited to 'test/tsan/fd_dup_norace.cc')
-rw-r--r-- | test/tsan/fd_dup_norace.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/tsan/fd_dup_norace.cc b/test/tsan/fd_dup_norace.cc new file mode 100644 index 0000000000000..5045325b22b53 --- /dev/null +++ b/test/tsan/fd_dup_norace.cc @@ -0,0 +1,34 @@ +// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s +#include <pthread.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +int fds[2]; + +void *Thread1(void *x) { + char buf; + read(fds[0], &buf, 1); + close(fds[0]); + return 0; +} + +void *Thread2(void *x) { + close(fds[1]); + return 0; +} + +int main() { + fds[0] = open("/dev/random", O_RDONLY); + fds[1] = dup2(fds[0], 100); + pthread_t t[2]; + pthread_create(&t[0], NULL, Thread1, NULL); + pthread_create(&t[1], NULL, Thread2, NULL); + pthread_join(t[0], NULL); + pthread_join(t[1], NULL); + printf("OK\n"); +} + +// CHECK-NOT: WARNING: ThreadSanitizer: data race |