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 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
13 static jfieldID jsyncro_field_Mutex_bind;
15 JNIEXPORT void JNICALL
16 Java_org_simgrid_msg_Mutex_nativeInit(JNIEnv *env, jclass cls) {
17 jsyncro_field_Mutex_bind = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
18 if (!jsyncro_field_Mutex_bind) {
19 jxbt_throw_native(env,bprintf("Can't find some fields in Java class. You should report this bug."));
22 JNIEXPORT void JNICALL
23 Java_org_simgrid_msg_Mutex_init(JNIEnv * env, jobject obj) {
24 xbt_mutex_t mutex = xbt_mutex_init();
26 (*env)->SetLongField(env, obj, jsyncro_field_Mutex_bind, (jlong) (long) (mutex));
29 JNIEXPORT void JNICALL
30 Java_org_simgrid_msg_Mutex_acquire(JNIEnv * env, jobject obj) {
33 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
36 xbt_mutex_acquire(mutex);
43 JNIEXPORT void JNICALL
44 Java_org_simgrid_msg_Mutex_release(JNIEnv * env, jobject obj) {
47 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
48 xbt_mutex_release(mutex);
51 JNIEXPORT void JNICALL
52 Java_org_simgrid_msg_Mutex_exit(JNIEnv * env, jobject obj) {
55 mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
56 xbt_mutex_destroy(mutex);