#include "jmsg_synchro.h"
#include "jxbt_utilities.h"
+static jfieldID jsyncro_field_Mutex_bind;
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Mutex_nativeInit(JNIEnv *env, jclass cls) {
+ jsyncro_field_Mutex_bind = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
+ if (!jsyncro_field_Mutex_bind) {
+ jxbt_throw_native(env,bprintf("Can't find some fields in Java class. You should report this bug."));
+ }
+}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Mutex_init(JNIEnv * env, jobject obj) {
xbt_mutex_t mutex = xbt_mutex_init();
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
- if (!id) return;
-
- (*env)->SetLongField(env, obj, id, (jlong) (long) (mutex));
+ (*env)->SetLongField(env, obj, jsyncro_field_Mutex_bind, (jlong) (long) (mutex));
}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Mutex_acquire(JNIEnv * env, jobject obj) {
xbt_mutex_t mutex;
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
- if (!id) return;
-
- mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, id);
+ mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
xbt_mutex_acquire(mutex);
}
Java_org_simgrid_msg_Mutex_release(JNIEnv * env, jobject obj) {
xbt_mutex_t mutex;
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
- if (!id) return;
-
- mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, id);
+ mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
xbt_mutex_release(mutex);
}
Java_org_simgrid_msg_Mutex_exit(JNIEnv * env, jobject obj) {
xbt_mutex_t mutex;
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Mutex", "bind", "J");
- if (!id) return;
-
- mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, id);
+ mutex = (xbt_mutex_t) (long) (*env)->GetLongField(env, obj, jsyncro_field_Mutex_bind);
xbt_mutex_destroy(mutex);
}