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tsan: fix flaky test 

llvm-svn: 204119
This commit is contained in:
Dmitry Vyukov 2014-03-18 06:37:31 +00:00
parent 7a1ac3b89b
commit eac8cc7a42
2 changed files with 8 additions and 1 deletions
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3
compiler-rt/test/tsan/SharedLibs/load_shared_lib-so.cc
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@ -12,11 +12,14 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include <stddef.h> #include <stddef.h>
#include <unistd.h>
int GLOB_SHARED = 0; int GLOB_SHARED = 0;
extern "C" extern "C"
void *write_from_so(void *unused) { void *write_from_so(void *unused) {
if (unused)
sleep(1);
GLOB_SHARED++; GLOB_SHARED++;
return NULL; return NULL;
} }

6
compiler-rt/test/tsan/load_shared_lib.cc
View File

@ -9,19 +9,23 @@
#include <dlfcn.h> #include <dlfcn.h>
#include <pthread.h> #include <pthread.h>
#include <stdio.h> #include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include <string> #include <string>
int GLOB = 0; int GLOB = 0;
void *write_glob(void *unused) { void *write_glob(void *unused) {
if (unused)
sleep(1);
GLOB++; GLOB++;
return NULL; return NULL;
} }
void race_two_threads(void *(*access_callback)(void *unused)) { void race_two_threads(void *(*access_callback)(void *unused)) {
pthread_t t1, t2; pthread_t t1, t2;
pthread_create(&t1, NULL, access_callback, NULL); pthread_create(&t1, NULL, access_callback, (void*)1);
pthread_create(&t2, NULL, access_callback, NULL); pthread_create(&t2, NULL, access_callback, NULL);
pthread_join(t1, NULL); pthread_join(t1, NULL);
pthread_join(t2, NULL); pthread_join(t2, NULL);