+ msg_error_t rv;
+ msg_task_t *task = xbt_new(msg_task_t,1);
+ *task = NULL;
+
+ msg_host_t host = NULL;
+ jobject jtask_global, jtask_local;
+ const char *alias;
+
+ if (jhost) {
+ host = jhost_get_native(env, jhost);
+
+ if (!host) {
+ jxbt_throw_notbound(env, "host", jhost);
+ return NULL;
+ }
+ }
+
+ alias = (*env)->GetStringUTFChars(env, jalias, 0);
+ xbt_ex_t e;
+ TRY {
+ rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return NULL;
+ }
+ if (rv != MSG_OK) {
+ jmsg_throw_status(env,rv);
+ return NULL;
+ }
+ jtask_global = MSG_task_get_data(*task);
+
+ /* Convert the global ref into a local ref so that the JVM can free the stuff */
+ jtask_local = (*env)->NewLocalRef(env, jtask_global);
+ (*env)->DeleteGlobalRef(env, jtask_global);
+ MSG_task_set_data(*task, NULL);
+
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+
+ xbt_free(task);
+
+ return (jobject) jtask_local;
+}
+
+
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
+ msg_comm_t comm;
+ const char *mailbox;
+ jclass comm_class;
+ //pointer to store the task object pointer.
+ msg_task_t *task = xbt_new(msg_task_t,1);
+ *task = NULL;
+ /* There should be a cache here */
+ comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+
+ if (!comm_class) {
+ jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
+ return NULL;
+ }
+
+ jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
+ if (!jcomm) {
+ jxbt_throw_native(env,bprintf("Can't create a Comm object."));
+ return NULL;
+ }
+
+ mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
+
+ comm = MSG_task_irecv(task,mailbox);
+
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
+ (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
+
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+
+ return jcomm;
+}
+
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
+ jclass comm_class;
+
+ const char *mailbox;
+
+ msg_task_t task;
+
+ jobject jcomm;
+ msg_comm_t comm;
+
+ comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+
+ if (!comm_class) return NULL;
+
+ jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
+ mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
+
+ task = jtask_to_native_task(jtask, env);
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+ (*env)->DeleteLocalRef(env, jcomm);
+ jxbt_throw_notbound(env, "task", jtask);
+ return NULL;
+ }
+
+MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ comm = MSG_task_isend(task,mailbox);
+
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
+ (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
+
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+
+ return jcomm;
+}
+
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
+ jclass comm_class;
+
+ const char *mailbox;
+
+ msg_task_t task;
+
+ jobject jcomm;
+ msg_comm_t comm;
+
+ comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+
+ if (!comm_class) return NULL;
+
+ jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
+ mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
+
+ task = jtask_to_native_task(jtask, env);
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+ (*env)->DeleteLocalRef(env, jcomm);
+ jxbt_throw_notbound(env, "task", jtask);
+ return NULL;
+ }
+
+MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ comm = MSG_task_isend_bounded(task,mailbox,maxrate);
+
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
+ (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
+
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+
+ return jcomm;
+}
+
+
+
+static void msg_task_cancel_on_failed_dsend(void*t) {
+ msg_task_t task = t;
+ JNIEnv *env =get_current_thread_env();
+ jobject jtask_global = MSG_task_get_data(task);
+
+ /* Destroy the global ref so that the JVM can free the stuff */
+ (*env)->DeleteGlobalRef(env, jtask_global);
+ MSG_task_set_data(task, NULL);
+ MSG_task_destroy(task);
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
+ jstring jalias) {
+ const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
+
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+ jxbt_throw_notbound(env, "task", jtask);
+ return;
+ }
+
+ /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
+ MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
+
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
+ jstring jalias, jdouble maxrate) {
+ const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
+
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+ jxbt_throw_notbound(env, "task", jtask);
+ return;
+ }
+
+ /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
+ MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
+
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+}
+
+
+
+JNIEXPORT jboolean JNICALL
+Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls,
+ jstring jalias) {
+
+ const char *alias;
+ int rv;
+ xbt_ex_t e;
+
+ alias = (*env)->GetStringUTFChars(env, jalias, 0);
+ TRY {
+ rv = MSG_task_listen(alias);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return 0;
+ }
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+
+ return (jboolean) rv;
+}
+
+JNIEXPORT jint JNICALL
+Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls,
+ jstring jalias,
+ jobject jhost) {
+ int rv;
+ const char *alias;
+
+ msg_host_t host = jhost_get_native(env, jhost);
+
+ if (!host) {
+ jxbt_throw_notbound(env, "host", jhost);
+ return -1;
+ }
+ alias = (*env)->GetStringUTFChars(env, jalias, 0);
+ xbt_ex_t e;
+
+ TRY {
+ rv = MSG_task_listen_from_host(alias, host);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return 0;
+ }
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+
+ return (jint) rv;
+}
+
+
+JNIEXPORT jint JNICALL
+Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls,
+ jstring jalias) {