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author | Kuba Brecka <kuba.brecka@gmail.com> | 2016-04-07 11:38:53 +0000 |
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committer | Kuba Brecka <kuba.brecka@gmail.com> | 2016-04-07 11:38:53 +0000 |
commit | a5e174787c3f92c370918da69e528c24285f83bb (patch) | |
tree | 413bf15bf27055c489dbad3f4e581fa801227055 /test/tsan/Darwin/gcd-source-cancel.mm | |
parent | fc2a80ee264e8390829178791d57c06a1ec875b6 (diff) | |
download | compiler-rt-a5e174787c3f92c370918da69e528c24285f83bb.tar.gz |
[tsan] Add support for dispatch event sources
GCD has APIs for event sources, we need some more release-acquire pairs to avoid false positives in TSan.
Differential Revision: http://reviews.llvm.org/D18515
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@265660 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan/Darwin/gcd-source-cancel.mm')
-rw-r--r-- | test/tsan/Darwin/gcd-source-cancel.mm | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/tsan/Darwin/gcd-source-cancel.mm b/test/tsan/Darwin/gcd-source-cancel.mm new file mode 100644 index 000000000..86e1b28a6 --- /dev/null +++ b/test/tsan/Darwin/gcd-source-cancel.mm @@ -0,0 +1,36 @@ +// RUN: %clang_tsan %s -o %t -framework Foundation +// RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s + +#import <Foundation/Foundation.h> + +long global; + +int main(int argc, const char *argv[]) { + dispatch_queue_t queue = + dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT); + + dispatch_source_t source = + dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queue); + + dispatch_source_set_timer(source, dispatch_walltime(NULL, 0), 1e9, 5); + + global = 42; + + dispatch_source_set_cancel_handler(source, ^{ + fprintf(stderr, "global = %ld\n", global); + + dispatch_sync(dispatch_get_main_queue(), ^{ + CFRunLoopStop(CFRunLoopGetCurrent()); + }); + }); + + dispatch_resume(source); + dispatch_cancel(source); + + CFRunLoopRun(); + + return 0; +} + +// CHECK: global = 42 +// CHECK-NOT: WARNING: ThreadSanitizer |