X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=pthread.cc;h=d48d34b0291fd3d41328fabddc973810508bf4ff;hp=efe1033b0c4dbb5b7d203dc6d53092c996e8d556;hb=d55f961768e13c12ab9d7b6a4f7f1490748f18c5;hpb=c8b9d01f03c5ceae9b3ad503e29f6900564cc242

diff --git a/pthread.cc b/pthread.cc
index efe1033b..d48d34b0 100644
--- a/pthread.cc
+++ b/pthread.cc
@@ -8,11 +8,31 @@
 
 #include "mutex.h"
 #include <condition_variable>
-#include <assert.h>
 
 /* global "model" object */
 #include "model.h"
 #include "execution.h"
+extern "C" {
+int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
+}
+
+int nanosleep(const struct timespec *rqtp, struct timespec *rmtp) {
+	if (model) {
+		uint64_t time = rqtp->tv_sec * 1000000000 + rqtp->tv_nsec;
+		struct timespec currtime;
+		clock_gettime(CLOCK_MONOTONIC, &currtime);
+		uint64_t lcurrtime = currtime.tv_sec * 1000000000 + currtime.tv_nsec;
+		model->switch_to_master(new ModelAction(THREAD_SLEEP, std::memory_order_seq_cst, time, lcurrtime));
+		if (rmtp != NULL) {
+			clock_gettime(CLOCK_MONOTONIC, &currtime);
+			uint64_t lendtime = currtime.tv_sec * 1000000000 + currtime.tv_nsec;
+			uint64_t elapsed = lendtime - lcurrtime;
+			rmtp->tv_sec = elapsed / 1000000000;
+			rmtp->tv_nsec = elapsed - rmtp->tv_sec * 1000000000;
+		}
+	}
+	return 0;
+}
 
 int pthread_create(pthread_t *t, const pthread_attr_t * attr,
 									 pthread_start_t start_routine, void * arg) {
@@ -33,7 +53,6 @@ int pthread_create(pthread_t *t, const pthread_attr_t * attr,
 }
 
 int pthread_join(pthread_t t, void **value_ptr) {
-//	Thread *th = model->get_pthread(t);
 	ModelExecution *execution = model->get_execution();
 	Thread *th = execution->get_pthread(t);
 
@@ -62,13 +81,12 @@ void pthread_exit(void *value_ptr) {
 }
 
 int pthread_mutex_init(pthread_mutex_t *p_mutex, const pthread_mutexattr_t *) {
-	cdsc::snapmutex *m = new cdsc::snapmutex();
-
 	if (!model) {
 		snapshot_system_init(10000, 1024, 1024, 40000);
 		model = new ModelChecker();
 		model->startChecker();
 	}
+	cdsc::snapmutex *m = new cdsc::snapmutex();
 
 	ModelExecution *execution = model->get_execution();
 	execution->getMutexMap()->put(p_mutex, m);
@@ -83,7 +101,6 @@ int pthread_mutex_lock(pthread_mutex_t *p_mutex) {
 		model->startChecker();
 	}
 
-
 	ModelExecution *execution = model->get_execution();
 
 	/* to protect the case where PTHREAD_MUTEX_INITIALIZER is used
@@ -172,6 +189,8 @@ int pthread_cond_wait(pthread_cond_t *p_cond, pthread_mutex_t *p_mutex) {
 	ModelExecution *execution = model->get_execution();
 	if ( !execution->getCondMap()->contains(p_cond) )
 		pthread_cond_init(p_cond, NULL);
+	if ( !execution->getMutexMap()->contains(p_mutex) )
+		pthread_mutex_init(p_mutex, NULL);
 
 	cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
 	cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
@@ -181,8 +200,7 @@ int pthread_cond_wait(pthread_cond_t *p_cond, pthread_mutex_t *p_mutex) {
 }
 
 int pthread_cond_timedwait(pthread_cond_t *p_cond,
-													 pthread_mutex_t *p_mutex, const struct timespec *abstime) {
-// implement cond_timedwait as a noop and let the scheduler decide which thread goes next
+	pthread_mutex_t *p_mutex, const struct timespec *abstime) {
 	ModelExecution *execution = model->get_execution();
 
 	if ( !execution->getCondMap()->contains(p_cond) )
@@ -193,9 +211,10 @@ int pthread_cond_timedwait(pthread_cond_t *p_cond,
 	cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
 	cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
 
-	model->switch_to_master(new ModelAction(NOOP, std::memory_order_seq_cst, v));
-//	v->wait(*m);
-//	printf("timed_wait called\n");
+	model->switch_to_master(new ModelAction(ATOMIC_TIMEDWAIT, std::memory_order_seq_cst, v, (uint64_t) m));
+	m->lock();
+
+	// model_print("Timed_wait is called\n");
 	return 0;
 }
 
@@ -222,3 +241,14 @@ int pthread_cond_broadcast(pthread_cond_t *p_cond) {
 	v->notify_all();
 	return 0;
 }
+
+int pthread_cond_destroy(pthread_cond_t *p_cond) {
+	ModelExecution *execution = model->get_execution();
+
+	if (execution->getCondMap()->contains(p_cond)) {
+		cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
+		delete v;
+		execution->getCondMap()->remove(p_cond);
+	}
+	return 0;
+}