1 /* Functions exporting the simgrid synchronization mechanisms to the Java world */
3 /* Copyright (c) 2012. 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"
9 #include "jxbt_utilities.h"
11 static jfieldID jsyncro_field_Mutex_bind;
13 JNIEXPORT void JNICALL
14 Java_org_simgrid_msg_Mutex_nativeInit(JNIEnv *env, jclass cls) {
15 jsyncro_field_Mutex_bind = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
16 if (!jsyncro_field_Mutex_bind) {
17 jxbt_throw_native(env,bprintf("Can't find some fields in Java class. You should report this bug."));
20 JNIEXPORT void JNICALL
21 Java_org_simgrid_msg_Mutex_init(JNIEnv * env, jobject obj) {
22 xbt_mutex_t mutex = xbt_mutex_init();
24 (*env)->SetLongField(env, obj, jsyncro_field_Mutex_bind, (jlong) (long) (mutex));
27 JNIEXPORT void JNICALL
28 Java_org_simgrid_msg_Mutex_acquire(JNIEnv * env, jobject obj) {
31 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
32 xbt_mutex_acquire(mutex);
35 JNIEXPORT void JNICALL
36 Java_org_simgrid_msg_Mutex_release(JNIEnv * env, jobject obj) {
39 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
40 xbt_mutex_release(mutex);
43 JNIEXPORT void JNICALL
44 Java_org_simgrid_msg_Mutex_exit(JNIEnv * env, jobject obj) {
47 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
48 xbt_mutex_destroy(mutex);