maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[NFC][LSAN] Limit the number of concurrent threads is the test 

Test still fails with D88184 reverted.

The test was flaky on https://bugs.chromium.org/p/chromium/issues/detail?id=1206745 and
https://lab.llvm.org/buildbot/#/builders/sanitizer-x86_64-linux

Reviewed By: morehouse

Differential Revision: https://reviews.llvm.org/D102218
This commit is contained in:
Vitaly Buka 2021-06-07 17:10:22 -07:00
parent 5b4dda550e
commit 11539edf52
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
compiler-rt/test/lsan/TestCases/many_threads_detach.cpp
View File

@ -3,6 +3,8 @@
// 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>
@ -12,15 +14,21 @@
// 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 main(void) {
for (size_t i = 0; i < kTestThreads; i++) {
pthread_t thread;
if (pthread_create(&thread, NULL, null_func, NULL) == 0)
pthread_detach(thread);
for (size_t i = 0; i < kTestThreads; i += kTestThreadsBatch) {
pthread_t thread[kTestThreadsBatch];
for (size_t j = 0; j < kTestThreadsBatch; ++j)
assert(pthread_create(&thread[j], NULL, null_func, NULL) == 0);
for (size_t j = 0; j < kTestThreadsBatch; ++j)
assert(pthread_join(thread[j], NULL) == 0);
}
return 0;
}