#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) {
}
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);
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::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);
model->startChecker();
}
-
ModelExecution *execution = model->get_execution();
/* to protect the case where PTHREAD_MUTEX_INITIALIZER is used
}
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::snapmutex *m = execution->getMutexMap()->get(p_mutex);
return m->try_lock();
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);
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;
+}
+
+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;
+}