JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Comm_test(JNIEnv *env, jobject jcomm) {
msg_comm_t comm;
comm = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
jboolean finished = env->GetBooleanField(jcomm, jcomm_field_Comm_finished);
if (finished == JNI_TRUE) {
return JNI_TRUE;
}
if (not comm) {
jxbt_throw_null(env, "comm is null");
return JNI_FALSE;
}
if (MSG_comm_test(comm)) {
msg_error_t status = MSG_comm_get_status(comm);
if (status == MSG_OK) {
jcomm_bind_task(env,jcomm);
return JNI_TRUE;
} else {
//send the correct exception
jmsg_throw_status(env,status);
}
}
return JNI_FALSE;
}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Process_migrate(JNIEnv * env,
jobject jprocess, jobject jhost)
{
msg_process_t process = jprocess_to_native_process(jprocess, env);
if (!process) {
jxbt_throw_notbound(env, "process", jprocess);
return;
}
msg_host_t host = jhost_get_native(env, jhost);
if (!host) {
jxbt_throw_notbound(env, "host", jhost);
return;
}
/* try to change the host of the process */
msg_error_t rv = MSG_process_migrate(process, host);
if (rv != MSG_OK) {
jmsg_throw_status(env,rv);
return;
}
/* change the host java side */
(*env)->SetObjectField(env, jprocess, jprocess_field_Process_host, jhost);
}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Comm_waitCompletion(JNIEnv *env, jobject jcomm, jdouble timeout) {
msg_comm_t comm = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
if (!comm) {
jxbt_throw_native(env,bprintf("comm is null"));
return;
}
jboolean finished = env->GetBooleanField(jcomm, jcomm_field_Comm_finished);
if (finished == JNI_TRUE) {
return;
}
msg_error_t status;
status = MSG_comm_wait(comm,(double)timeout);
env->SetBooleanField(jcomm, jcomm_field_Comm_finished, JNI_TRUE);
if (status == MSG_OK) {
jcomm_bind_task(env,jcomm);
return;
}
else {
jmsg_throw_status(env,status);
}
}
JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_acquire(JNIEnv * env, jobject obj, jdouble timeout) {
msg_sem_t sem;
sem = (msg_sem_t) (uintptr_t) env->GetLongField(obj, jsyncro_field_Semaphore_bind);
msg_error_t res = MSG_sem_acquire_timeout(sem, (double) timeout);
if (res != MSG_OK) {
jmsg_throw_status(env, res);
}
}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobject jprocess,
jdouble jseconds)
{
msg_error_t rv;
rv = MSG_process_sleep((double)jseconds);
if ((*env)->ExceptionOccurred(env))
return;
if (rv != MSG_OK) {
XBT_DEBUG("Status NOK");
jmsg_throw_status(env,rv);
}
}