add sleep support

[c11tester.git] / pthread.cc

diff --git a/pthread.cc b/pthread.cc
index d23c4900f6382b62ed39c70c434e852c1e4f22ab..71c60519d479365fba56a20646e1fdcab2afec28 100644 (file)
--- a/pthread.cc
+++ b/pthread.cc
@@ -13,6 +13,27 @@
 /* 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) {
@@ -55,8 +76,10 @@ int pthread_detach(pthread_t t) {
 
 void pthread_exit(void *value_ptr) {
        Thread * th = thread_current();
-       model->switch_to_master(new ModelAction(THREAD_FINISH, std::memory_order_seq_cst, th));
-       while(1) ;//make warning goaway
+       th->set_pthread_return(value_ptr);
+       model->switch_to_master(new ModelAction(THREADONLY_FINISH, std::memory_order_seq_cst, th));
+       //Need to exit so we don't return to the program
+       real_pthread_exit(NULL);
 }
 
 int pthread_mutex_init(pthread_mutex_t *p_mutex, const pthread_mutexattr_t *) {
@@ -108,7 +131,7 @@ int pthread_mutex_trylock(pthread_mutex_t *p_mutex) {
                model = new ModelChecker();
                model->startChecker();
        }
-       
+
        ModelExecution *execution = model->get_execution();
        cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
        return m->try_lock();
@@ -189,7 +212,7 @@ int pthread_cond_timedwait(pthread_cond_t *p_cond,
                pthread_mutex_init(p_mutex, NULL);
 
        cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
-       cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
+       //      cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
 
        model->switch_to_master(new ModelAction(NOOP, std::memory_order_seq_cst, v));
 //     v->wait(*m);