Switch from pipes to temporary file to store program output to get rid length limits.

[c11tester.git] / pthread.cc

diff --git a/pthread.cc b/pthread.cc
index 79e904257b38ef69973ce4733cb55ab3ed1ce527..71c60519d479365fba56a20646e1fdcab2afec28 100644 (file)
--- a/pthread.cc
+++ b/pthread.cc
@@ -13,9 +13,36 @@
 /* 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) {
+       if (!model) {
+               snapshot_system_init(10000, 1024, 1024, 40000);
+               model = new ModelChecker();
+               model->startChecker();
+       }
+
        struct pthread_params params = { start_routine, arg };
 
        ModelAction *act = new ModelAction(PTHREAD_CREATE, std::memory_order_seq_cst, t, (uint64_t)&params);
@@ -41,30 +68,43 @@ int pthread_join(pthread_t t, void **value_ptr) {
        return 0;
 }
 
+int pthread_detach(pthread_t t) {
+       //Doesn't do anything
+       //Return success
+       return 0;
+}
+
 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 *) {
-       cdsc::mutex *m = new cdsc::mutex();
-       ModelExecution *execution;
+       cdsc::snapmutex *m = new cdsc::snapmutex();
 
        if (!model) {
-               if (!model_init) {
-                       snapshot_system_init(10000, 1024, 1024, 40000);
-                       model_init = new ModelChecker();
-               }
-               execution = model_init->get_execution();
-       } else
-               execution = model->get_execution();
+               snapshot_system_init(10000, 1024, 1024, 40000);
+               model = new ModelChecker();
+               model->startChecker();
+       }
+
+       ModelExecution *execution = model->get_execution();
        execution->getMutexMap()->put(p_mutex, m);
 
        return 0;
 }
 
 int pthread_mutex_lock(pthread_mutex_t *p_mutex) {
+       if (!model) {
+               snapshot_system_init(10000, 1024, 1024, 40000);
+               model = new ModelChecker();
+               model->startChecker();
+       }
+
+
        ModelExecution *execution = model->get_execution();
 
        /* to protect the case where PTHREAD_MUTEX_INITIALIZER is used
@@ -74,7 +114,7 @@ int pthread_mutex_lock(pthread_mutex_t *p_mutex) {
                pthread_mutex_init(p_mutex, NULL);
        }
 
-       cdsc::mutex *m = execution->getMutexMap()->get(p_mutex);
+       cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
 
        if (m != NULL) {
                m->lock();
@@ -86,13 +126,19 @@ int pthread_mutex_lock(pthread_mutex_t *p_mutex) {
 }
 
 int pthread_mutex_trylock(pthread_mutex_t *p_mutex) {
+       if (!model) {
+               snapshot_system_init(10000, 1024, 1024, 40000);
+               model = new ModelChecker();
+               model->startChecker();
+       }
+
        ModelExecution *execution = model->get_execution();
-       cdsc::mutex *m = execution->getMutexMap()->get(p_mutex);
+       cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
        return m->try_lock();
 }
 int pthread_mutex_unlock(pthread_mutex_t *p_mutex) {
        ModelExecution *execution = model->get_execution();
-       cdsc::mutex *m = execution->getMutexMap()->get(p_mutex);
+       cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
 
        if (m != NULL) {
                m->unlock();
@@ -112,7 +158,7 @@ int pthread_mutex_timedlock (pthread_mutex_t *__restrict p_mutex,
         if (!execution->mutex_map.contains(p_mutex)) {
                 pthread_mutex_init(p_mutex, NULL);
         }
-        cdsc::mutex *m = execution->mutex_map.get(p_mutex);
+        cdsc::snapmutex *m = execution->mutex_map.get(p_mutex);
 
         if (m != NULL) {
                 m->lock();
@@ -136,7 +182,7 @@ int pthread_key_delete(pthread_key_t) {
 }
 
 int pthread_cond_init(pthread_cond_t *p_cond, const pthread_condattr_t *attr) {
-       cdsc::condition_variable *v = new cdsc::condition_variable();
+       cdsc::snapcondition_variable *v = new cdsc::snapcondition_variable();
 
        ModelExecution *execution = model->get_execution();
        execution->getCondMap()->put(p_cond, v);
@@ -148,8 +194,8 @@ int pthread_cond_wait(pthread_cond_t *p_cond, pthread_mutex_t *p_mutex) {
        if ( !execution->getCondMap()->contains(p_cond) )
                pthread_cond_init(p_cond, NULL);
 
-       cdsc::condition_variable *v = execution->getCondMap()->get(p_cond);
-       cdsc::mutex *m = execution->getMutexMap()->get(p_mutex);
+       cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
+       cdsc::snapmutex *m = execution->getMutexMap()->get(p_mutex);
 
        v->wait(*m);
        return 0;
@@ -165,8 +211,8 @@ int pthread_cond_timedwait(pthread_cond_t *p_cond,
        if ( !execution->getMutexMap()->contains(p_mutex) )
                pthread_mutex_init(p_mutex, NULL);
 
-       cdsc::condition_variable *v = execution->getCondMap()->get(p_cond);
-       cdsc::mutex *m = execution->getMutexMap()->get(p_mutex);
+       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);
@@ -180,8 +226,20 @@ int pthread_cond_signal(pthread_cond_t *p_cond) {
        if ( !execution->getCondMap()->contains(p_cond) )
                pthread_cond_init(p_cond, NULL);
 
-       cdsc::condition_variable *v = execution->getCondMap()->get(p_cond);
+       cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
 
        v->notify_one();
        return 0;
 }
+
+int pthread_cond_broadcast(pthread_cond_t *p_cond) {
+       // notify all blocked threads
+       ModelExecution *execution = model->get_execution();
+       if ( !execution->getCondMap()->contains(p_cond) )
+               pthread_cond_init(p_cond, NULL);
+
+       cdsc::snapcondition_variable *v = execution->getCondMap()->get(p_cond);
+
+       v->notify_all();
+       return 0;
+}