From 2c8c874d92134e081c9d1958da90a5d0846b60d8 Mon Sep 17 00:00:00 2001
From: bart <bart@a5019735-40e9-0310-863c-91ae7b9d1cf9>
Date: Thu, 29 Apr 2010 07:11:19 +0000
Subject: Made test results independent of thread scheduling.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11111 a5019735-40e9-0310-863c-91ae7b9d1cf9
---
 drd/tests/bug-235681.c          | 30 ++++++++++++++++++++++--------
 drd/tests/bug-235681.stderr.exp |  9 +--------
 drd/tests/bug-235681.vgtest     |  1 +
 3 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/drd/tests/bug-235681.c b/drd/tests/bug-235681.c
index 3b306ec0..99114eb6 100644
--- a/drd/tests/bug-235681.c
+++ b/drd/tests/bug-235681.c
@@ -13,28 +13,34 @@
 pthread_mutex_t mutex;
 pthread_cond_t cond_var;
 int status;
+int silent;
 
 static void *run_fn(void *v)
 {
     int rc;
 
-    fprintf(stderr, "run_fn starting\n");
+    if (!silent)
+        fprintf(stderr, "run_fn starting\n");
 
     rc = pthread_mutex_lock(&mutex);
     assert(!rc);
 
     while (!status) {
-        fprintf(stderr, "run_fn(): status==0\n");
+        if (!silent)
+            fprintf(stderr, "run_fn(): status==0\n");
         rc = pthread_cond_wait(&cond_var, &mutex);
         assert(!rc);
-        fprintf(stderr, "run_fn(): woke up\n");
+        if (!silent)
+            fprintf(stderr, "run_fn(): woke up\n");
     }
-    fprintf(stderr, "run_fn(): status==1\n");
+    if (!silent)
+        fprintf(stderr, "run_fn(): status==1\n");
 
     rc = pthread_mutex_unlock(&mutex);
     assert(!rc);
 
-    fprintf(stderr, "run_fn done\n");
+    if (!silent)
+        fprintf(stderr, "run_fn done\n");
 
     return NULL;
 }
@@ -44,6 +50,9 @@ int main(int argc, char **argv)
     int rc;
     pthread_t other_thread;
 
+    if (argc > 1)
+        silent = 1;
+
     rc = pthread_mutex_init(&mutex, NULL);
     assert(!rc);
     rc = pthread_cond_init(&cond_var, NULL);
@@ -55,14 +64,16 @@ int main(int argc, char **argv)
     assert(!rc);
 
     /* yield the processor, and give the other thread a chance to get into the while loop */
-    fprintf(stderr, "main(): sleeping...\n");
+    if (!silent)
+        fprintf(stderr, "main(): sleeping...\n");
     sleep(1);
 
     rc = pthread_mutex_lock(&mutex);
     assert(!rc);
     /**** BEGIN CS *****/
 
-    fprintf(stderr, "main(): status=1\n");
+    if (!silent)
+        fprintf(stderr, "main(): status=1\n");
     status = 1;
     rc = pthread_cond_broadcast(&cond_var);
     assert(!rc);
@@ -71,10 +82,13 @@ int main(int argc, char **argv)
     rc = pthread_mutex_unlock(&mutex);
     assert(!rc);
 
-    fprintf(stderr, "joining...\n");
+    if (!silent)
+        fprintf(stderr, "joining...\n");
 
     rc = pthread_join(other_thread, NULL);
     assert(!rc);
 
+    fprintf(stderr, "Done.\n");
+
     return 0;
 }
diff --git a/drd/tests/bug-235681.stderr.exp b/drd/tests/bug-235681.stderr.exp
index 8aa66127..d16127fb 100644
--- a/drd/tests/bug-235681.stderr.exp
+++ b/drd/tests/bug-235681.stderr.exp
@@ -1,11 +1,4 @@
 
-run_fn starting
-run_fn(): status==0
-main(): sleeping...
-main(): status=1
-joining...
-run_fn(): woke up
-run_fn(): status==1
-run_fn done
+Done.
 
 ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
diff --git a/drd/tests/bug-235681.vgtest b/drd/tests/bug-235681.vgtest
index 45ff5fd8..f6051b7c 100644
--- a/drd/tests/bug-235681.vgtest
+++ b/drd/tests/bug-235681.vgtest
@@ -1,4 +1,5 @@
 prereq: test -e bug-235681 && ./supported_libpthread
 vgopts: --read-var-info=yes --check-stack-var=yes --show-confl-seg=no --num-callers=3
 prog: bug-235681
+args: -q
 stderr_filter: filter_stderr
-- 
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