1 /* Java bindings of the Synchronization API. */
3 /* Copyright (c) 2012-2020. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "jmsg_synchro.h"
10 #include "jxbt_utilities.hpp"
11 #include "simgrid/Exception.hpp"
12 #include "simgrid/mutex.h"
13 #include "simgrid/semaphore.h"
15 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
17 static jfieldID jsynchro_field_Mutex_bind;
19 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_nativeInit(JNIEnv *env, jclass cls) {
20 jsynchro_field_Mutex_bind = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
21 xbt_assert(jsynchro_field_Mutex_bind, "Native initialization of msg/Mutex failed. Please report that bug");
24 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_init(JNIEnv * env, jobject obj) {
25 sg_mutex_t mutex = sg_mutex_init();
27 env->SetLongField(obj, jsynchro_field_Mutex_bind, (jlong)(uintptr_t)(mutex));
30 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_acquire(JNIEnv * env, jobject obj) {
31 sg_mutex_t mutex = (sg_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
35 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_release(JNIEnv * env, jobject obj) {
38 mutex = (sg_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
39 sg_mutex_unlock(mutex);
42 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_nativeFinalize(JNIEnv * env, jobject obj) {
43 const_sg_mutex_t mutex = (sg_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
44 sg_mutex_destroy(mutex);
47 static jfieldID jsynchro_field_Semaphore_bind;
49 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_nativeInit(JNIEnv *env, jclass cls) {
50 jsynchro_field_Semaphore_bind = jxbt_get_sfield(env, "org/simgrid/msg/Semaphore", "bind", "J");
51 xbt_assert(jsynchro_field_Semaphore_bind, "Native initialization of msg/Semaphore failed. Please report that bug");
54 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_init(JNIEnv * env, jobject obj, jint capacity) {
55 sg_sem_t sem = sg_sem_init((int)capacity);
57 env->SetLongField(obj, jsynchro_field_Semaphore_bind, (jlong)(uintptr_t)(sem));
60 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_acquire(JNIEnv * env, jobject obj, jdouble timeout) {
63 sem = (sg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
64 msg_error_t res = sg_sem_acquire_timeout(sem, (double)timeout) == 0 ? MSG_OK : MSG_TIMEOUT;
66 jmsg_throw_status(env, res);
70 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_release(JNIEnv * env, jobject obj) {
73 sem = (sg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
77 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Semaphore_wouldBlock(JNIEnv * env, jobject obj) {
80 sem = (sg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
81 int res = sg_sem_would_block(sem);
82 return (jboolean) res;
85 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_nativeFinalize(JNIEnv * env, jobject obj) {
88 sem = (sg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);