1 /* SimGrid's pthread interposer. Actual implementation of the symbols (see the comment in sthread.h) */
10 #include <simgrid/actor.h>
11 #include <simgrid/s4u/Actor.hpp>
12 #include <simgrid/s4u/Engine.hpp>
13 #include <simgrid/s4u/Mutex.hpp>
14 #include <simgrid/s4u/NetZone.hpp>
16 #include <xbt/sysdep.h>
18 #include "src/internal_config.h"
19 #include "src/sthread/sthread.h"
21 XBT_LOG_NEW_DEFAULT_CATEGORY(sthread, "pthread intercepter");
22 namespace sg4 = simgrid::s4u;
24 static sg4::Host* lilibeth = NULL;
26 int sthread_main(int argc, char** argv, char** envp, int (*raw_main)(int, char**, char**))
28 XBT_INFO("sthread main() is starting");
29 sthread_inside_simgrid = 1;
31 sg4::Engine e(&argc, argv);
32 auto* zone = sg4::create_full_zone("world");
33 lilibeth = zone->create_host("Lilibeth", 1e15);
35 sthread_inside_simgrid = 0;
37 /* Launch the user's main() on an actor */
38 sg4::ActorPtr main_actor = sg4::Actor::create("tid 0", lilibeth, raw_main, argc, argv, envp);
40 XBT_INFO("sthread main() is launching the simulation");
41 sg4::Engine::get_instance()->run();
45 struct sthread_mutex {
49 static void thread_create_wrapper(void* (*user_function)(void*), void* param)
55 sthread_inside_simgrid = 0;
57 sthread_inside_simgrid = 1;
60 int sthread_create(unsigned long int* thread, const /*pthread_attr_t*/ void* attr, void* (*start_routine)(void*),
71 MPI_Comm_rank(MPI_COMM_WORLD, &rank);
74 sprintf(name, "%d:%d", rank, TID);
75 sg4::ActorPtr actor = sg4::Actor::init(name, lilibeth);
76 actor->start(thread_create_wrapper, start_routine, arg);
78 intrusive_ptr_add_ref(actor.get());
79 *thread = reinterpret_cast<unsigned long>(actor.get());
83 int sthread_mutex_init(sthread_mutex_t* mutex, const /*pthread_mutexattr_t*/ void* attr)
85 auto m = sg4::Mutex::create();
86 intrusive_ptr_add_ref(m.get());
88 mutex->mutex = m.get();
92 int sthread_mutex_lock(sthread_mutex_t* mutex)
94 static_cast<sg4::Mutex*>(mutex->mutex)->lock();
98 int sthread_mutex_trylock(sthread_mutex_t* mutex)
100 return static_cast<sg4::Mutex*>(mutex->mutex)->try_lock();
103 int sthread_mutex_unlock(sthread_mutex_t* mutex)
105 static_cast<sg4::Mutex*>(mutex->mutex)->unlock();
108 int sthread_mutex_destroy(sthread_mutex_t* mutex)
110 intrusive_ptr_release(static_cast<sg4::Mutex*>(mutex->mutex));
115 int sem_init(sem_t *sem, int pshared, unsigned int value) {
118 res=raw_sem_init(sem,pshared,value);
122 int sem_wait(sem_t *sem) {
125 res = raw_sem_wait(sem);
129 int sem_post(sem_t *sem) {
130 return raw_sem_post(sem);
133 int pthread_join(pthread_t thread, void **retval) {
134 sg_actor_join(thread, -1);
138 int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *cond_attr) {
139 *cond = sg_cond_init();
143 int pthread_cond_signal(pthread_cond_t *cond) {
144 sg_cond_notify_one(*cond);
148 int pthread_cond_broadcast(pthread_cond_t *cond) {
149 sg_cond_notify_all(*cond);
153 int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) {
154 sg_cond_wait(*cond, *mutex);
158 int pthread_cond_destroy(pthread_cond_t *cond) {
159 sg_cond_destroy(*cond);