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// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
#include "java.h"
#include <unistd.h>
jptr varaddr;
jptr lockaddr;
void *Thread(void *p) {
__tsan_java_mutex_lock(lockaddr);
__tsan_java_mutex_lock(lockaddr);
__tsan_java_mutex_lock(lockaddr);
int rec = __tsan_java_mutex_unlock_rec(lockaddr);
if (rec != 3) {
printf("FAILED 0 rec=%d\n", rec);
exit(1);
}
*(int*)varaddr = 42;
sleep(2);
__tsan_java_mutex_lock_rec(lockaddr, rec);
__tsan_java_mutex_unlock(lockaddr);
__tsan_java_mutex_unlock(lockaddr);
__tsan_java_mutex_unlock(lockaddr);
return 0;
}
int main() {
int const kHeapSize = 1024 * 1024;
void *jheap = malloc(kHeapSize);
__tsan_java_init((jptr)jheap, kHeapSize);
const int kBlockSize = 16;
__tsan_java_alloc((jptr)jheap, kBlockSize);
varaddr = (jptr)jheap;
*(int*)varaddr = 0;
lockaddr = (jptr)jheap + 8;
pthread_t th;
pthread_create(&th, 0, Thread, 0);
sleep(1);
__tsan_java_mutex_lock(lockaddr);
*(int*)varaddr = 43;
__tsan_java_mutex_unlock(lockaddr);
pthread_join(th, 0);
__tsan_java_free((jptr)jheap, kBlockSize);
printf("OK\n");
return __tsan_java_fini();
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NOT: FAILED
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