1 /* Java bindings of the Synchronization API. */
3 /* Copyright (c) 2012-2019. 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 "xbt/synchro.h"
14 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
16 static jfieldID jsynchro_field_Mutex_bind;
18 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_nativeInit(JNIEnv *env, jclass cls) {
19 jsynchro_field_Mutex_bind = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
20 xbt_assert(jsynchro_field_Mutex_bind, "Native initialization of msg/Mutex failed. Please report that bug");
23 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_init(JNIEnv * env, jobject obj) {
24 xbt_mutex_t mutex = xbt_mutex_init();
26 env->SetLongField(obj, jsynchro_field_Mutex_bind, (jlong)(uintptr_t)(mutex));
29 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_acquire(JNIEnv * env, jobject obj) {
30 xbt_mutex_t mutex = (xbt_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
32 xbt_mutex_acquire(mutex);
33 } catch (xbt_ex const& e) {
34 XBT_DEBUG("Caught an exception: %s", e.what());
38 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_release(JNIEnv * env, jobject obj) {
41 mutex = (xbt_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
42 xbt_mutex_release(mutex);
45 JNIEXPORT void JNICALL Java_org_simgrid_msg_Mutex_nativeFinalize(JNIEnv * env, jobject obj) {
46 xbt_mutex_t mutex = (xbt_mutex_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Mutex_bind);
47 xbt_mutex_destroy(mutex);
50 static jfieldID jsynchro_field_Semaphore_bind;
52 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_nativeInit(JNIEnv *env, jclass cls) {
53 jsynchro_field_Semaphore_bind = jxbt_get_sfield(env, "org/simgrid/msg/Semaphore", "bind", "J");
54 xbt_assert(jsynchro_field_Semaphore_bind, "Native initialization of msg/Semaphore failed. Please report that bug");
57 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_init(JNIEnv * env, jobject obj, jint capacity) {
58 msg_sem_t sem = MSG_sem_init((int) capacity);
60 env->SetLongField(obj, jsynchro_field_Semaphore_bind, (jlong)(uintptr_t)(sem));
63 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_acquire(JNIEnv * env, jobject obj, jdouble timeout) {
66 sem = (msg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
67 msg_error_t res = MSG_sem_acquire_timeout(sem, (double)timeout) == 0 ? MSG_OK : MSG_TIMEOUT;
69 jmsg_throw_status(env, res);
73 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_release(JNIEnv * env, jobject obj) {
76 sem = (msg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
80 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Semaphore_wouldBlock(JNIEnv * env, jobject obj) {
83 sem = (msg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);
84 int res = MSG_sem_would_block(sem);
85 return (jboolean) res;
88 JNIEXPORT void JNICALL Java_org_simgrid_msg_Semaphore_nativeFinalize(JNIEnv * env, jobject obj) {
91 sem = (msg_sem_t)(uintptr_t)env->GetLongField(obj, jsynchro_field_Semaphore_bind);