Added another POSIX reader/writer lock test.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8031

exp-drd/tests/Makefile.am

@@ -73,8 +73,8 @@ EXTRA_DIST =                                        \
 	pth_detached2.stderr.exp                    \
 	pth_detached2.stdout.exp                    \
 	pth_detached2.vgtest                        \
-	pth_detached_sem.stdout.exp                 \
 	pth_detached_sem.stderr.exp                 \
+	pth_detached_sem.stdout.exp                 \
 	pth_detached_sem.vgtest                     \
 	recursive_mutex.stderr.exp	            \
 	recursive_mutex.stdout.exp	            \
@@ -82,6 +82,8 @@ EXTRA_DIST =                                        \
 	rwlock_race.stderr.exp	                    \
 	rwlock_race.stderr.exp2	                    \
 	rwlock_race.vgtest                          \
+	rwlock_test.stderr.exp	                    \
+	rwlock_test.vgtest                          \
 	sem_as_mutex.stderr.exp                     \
 	sem_as_mutex.vgtest                         \
 	sem_as_mutex2.stderr.exp                    \
@@ -144,7 +146,7 @@ EXTRA_DIST =                                        \
 	tc23_bogus_condwait.vgtest                  \
 	tc24_nonzero_sem.stderr.exp                 \
 	tc24_nonzero_sem.vgtest                     \
-	trylock.c trylock.stderr.exp
+	trylock.stderr.exp
 
 AM_CFLAGS   = $(WERROR) -Wall -Wshadow -Wno-unused-parameter -Winline\
               -g $(AM_FLAG_M3264_PRI) -DVGA_$(VG_ARCH)=1 -DVGO_$(VG_OS)=1 \
@@ -174,6 +176,7 @@ check_PROGRAMS_COMMON = \
   pth_detached_sem    \
   recursive_mutex     \
   rwlock_race         \
+  rwlock_test         \
   sem_as_mutex        \
   sigalrm             \
   tc01_simple_race    \
@@ -213,7 +216,7 @@ endif
 
 
 drd_bitmap_test_SOURCES     = drd_bitmap_test.c
-drd_bitmap_test_CFLAGS      = $(AM_CFLAGS) -O2 -finline_limit=1000
+drd_bitmap_test_CFLAGS      = $(AM_CFLAGS) -O2 --param inline-unit-growth=100000
 
 fp_race_SOURCES             = fp_race.c
 fp_race_LDADD               = -lpthread
@@ -270,6 +273,9 @@ recursive_mutex_LDADD       = -lpthread
 rwlock_race_SOURCES         = rwlock_race.c
 rwlock_race_LDADD           = -lpthread
 
+rwlock_test_SOURCES         = rwlock_test.c
+rwlock_test_LDADD           = -lpthread
+
 sem_as_mutex_SOURCES        = sem_as_mutex.c
 sem_as_mutex_LDADD          = -lpthread
 

exp-drd/tests/rwlock_test.c

@@ -0,0 +1,50 @@
+/** Multithreaded test program that triggers various access patterns without
+ *  triggering any race conditions.
+ */
+
+
+#include <pthread.h>
+#include <stdio.h>
+
+
+static pthread_rwlock_t s_rwlock;
+static int s_counter;
+
+static void* thread_func(void* arg)
+{
+  int i;
+  int sum = 0;
+
+  for (i = 0; i < 1000; i++)
+  {
+    pthread_rwlock_rdlock(&s_rwlock);
+    sum += s_counter;
+    pthread_rwlock_unlock(&s_rwlock);
+    pthread_rwlock_wrlock(&s_rwlock);
+    s_counter++;
+    pthread_rwlock_unlock(&s_rwlock);
+  }
+
+  return 0;
+}
+
+int main(int argc, char** argv)
+{
+  const int thread_count = 10;
+  pthread_t tid[thread_count];
+  int i;
+
+  for (i = 0; i < thread_count; i++)
+  {
+    pthread_create(&tid[i], 0, thread_func, 0);
+  }
+
+  for (i = 0; i < thread_count; i++)
+  {
+    pthread_join(tid[i], 0);
+  }
+
+  fprintf(stderr, "Finished.\n");
+
+  return 0;
+}

exp-drd/tests/rwlock_test.stderr.exp

@@ -0,0 +1 @@
+valgrind: ./rwlock_vgtest: No such file or directory

exp-drd/tests/rwlock_test.vgtest

@@ -0,0 +1 @@
+prog: rwlock_vgtest