1// Test that threads are reused.
2// On Android, pthread_* are in libc.so. So the `-lpthread` is not supported.
3// Use `-pthread` so that its driver will DTRT (ie., ignore it).
4// RUN: %clangxx_lsan %s -o %t -pthread && %run %t
5
6#include <assert.h>
7#include <dirent.h>
8#include <pthread.h>
9#include <stdlib.h>
10#include <unistd.h>
11
12// Number of threads to create. This value is greater than kMaxThreads in
13// lsan_thread.cpp so that we can test that thread contexts are not being
14// reused.
15static const size_t kTestThreads = 10000;
16
17// Limit the number of simultaneous threads to avoid reaching the limit.
18static const size_t kTestThreadsBatch = 100;
19
20void *null_func(void *args) {
21 return NULL;
22}
23
24int main(void) {
25 for (size_t i = 0; i < kTestThreads; i += kTestThreadsBatch) {
26 pthread_t thread[kTestThreadsBatch];
27 for (size_t j = 0; j < kTestThreadsBatch; ++j)
28 assert(pthread_create(&thread[j], NULL, null_func, NULL) == 0);
29
30 for (size_t j = 0; j < kTestThreadsBatch; ++j)
31 assert(pthread_join(thread[j], NULL) == 0);
32 }
33 return 0;
34}
35

source code of compiler-rt/test/lsan/TestCases/many_threads_detach.cpp