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Fixes http://reviews.llvm.org/rL230691 

Summary: OS X doesn't implement pthread barriers, using a simple atomic flag instead.

Reviewers: ki.stfu

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D7933

llvm-svn: 230739
This commit is contained in:
Chaoren Lin 2015-02-27 07:48:07 +00:00
parent b1bc5cf4bc
commit 3ef297aeda
1 changed files with 4 additions and 7 deletions
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11
lldb/test/functionalities/watchpoint/hello_watchlocation/main.cpp
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@ -13,12 +13,13 @@
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <atomic>
pthread_t g_thread_1 = NULL;
pthread_t g_thread_2 = NULL;
pthread_t g_thread_3 = NULL;
pthread_barrier_t g_barrier;
std::atomic_bool g_ready(false);
char *g_char_ptr = NULL;
@ -54,7 +55,7 @@ thread_func (void *arg)
uint32_t thread_index = *((uint32_t *)arg);
printf ("%s (thread index = %u) startng...\n", __FUNCTION__, thread_index);
pthread_barrier_wait(&g_barrier);
while (!g_ready);
uint32_t count = 0;
uint32_t val;
@ -88,22 +89,18 @@ int main (int argc, char const *argv[])
g_char_ptr = (char *)malloc (1);
*g_char_ptr = 0;
pthread_barrier_init(&g_barrier, NULL, 4);
// Create 3 threads
err = ::pthread_create (&g_thread_1, NULL, thread_func, &thread_index_1);
err = ::pthread_create (&g_thread_2, NULL, thread_func, &thread_index_2);
err = ::pthread_create (&g_thread_3, NULL, thread_func, &thread_index_3);
printf ("Before turning all three threads loose...\n"); // Set break point at this line.
pthread_barrier_wait(&g_barrier);
g_ready = true;
// Join all of our threads
err = ::pthread_join (g_thread_1, &thread_result);
err = ::pthread_join (g_thread_2, &thread_result);
err = ::pthread_join (g_thread_3, &thread_result);
pthread_barrier_destroy(&g_barrier);
free(g_char_ptr);
return 0;