42 lines
735 B
Plaintext
42 lines
735 B
Plaintext
// Check that calling dispatch_once from a report callback works.
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// RUN: %clang_tsan %s -o %t -framework Foundation
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// RUN: not %run %t 2>&1 | FileCheck %s
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#import <Foundation/Foundation.h>
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#import <pthread.h>
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long g = 0;
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long h = 0;
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void f() {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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g++;
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});
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h++;
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}
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extern "C" void __tsan_on_report() {
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fprintf(stderr, "Report.\n");
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f();
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}
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int main() {
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fprintf(stderr, "Hello world.\n");
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f();
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pthread_mutex_t mutex = {0};
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pthread_mutex_lock(&mutex);
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fprintf(stderr, "g = %ld.\n", g);
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fprintf(stderr, "h = %ld.\n", h);
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fprintf(stderr, "Done.\n");
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}
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// CHECK: Hello world.
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// CHECK: Report.
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// CHECK: g = 1
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// CHECK: h = 2
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// CHECK: Done.
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