// Use `-pthread` so that its driver will DTRT (ie., ignore it).
// RUN: %clangxx_lsan %s -o %t -pthread && %run %t
-#include <assert.h>
-#include <dirent.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
// reused.
static const size_t kTestThreads = 10000;
-// Limit the number of simultaneous threads to avoid reaching the limit.
-static const size_t kTestThreadsBatch = 100;
-
void *null_func(void *args) {
return NULL;
}
-int count_threads() {
- DIR *d = opendir("/proc/self/task");
- assert(d);
- int count = 0;
- while (readdir(d))
- ++count;
- closedir(d);
- assert(count);
- return count;
-}
-
int main(void) {
- for (size_t i = 0; i < kTestThreads; i += kTestThreadsBatch) {
- for (size_t j = 0; j < kTestThreadsBatch; ++j) {
- pthread_t thread;
- assert(pthread_create(&thread, NULL, null_func, NULL) == 0);
+ for (size_t i = 0; i < kTestThreads; i++) {
+ pthread_t thread;
+ if (pthread_create(&thread, NULL, null_func, NULL) == 0)
pthread_detach(thread);
- }
- while (count_threads() > 10)
- sched_yield();
}
return 0;
}