/* Copyright (c) 2012. The SimGrid Team. All rights reserved. */
#include "jmsg_comm.h"
#include "jxbt_utilities.h"
+#include "jmsg.h"
+
#include <msg/msg.h>
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
+static jfieldID jcomm_field_Comm_bind;
+static jfieldID jcomm_field_Comm_finished;
+static jfieldID jcomm_field_Comm_receiving;
+static jfieldID jtask_field_Comm_task;
+static jfieldID jcomm_field_Comm_taskBind;
+
+void jcomm_bind_task(JNIEnv *env, jobject jcomm) {
+ msg_comm_t comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, jcomm_field_Comm_bind);
+ //test if we are receiving or sending a task.
+ jboolean jreceiving = (*env)->GetBooleanField(env, jcomm, jcomm_field_Comm_receiving);
+ if (jreceiving == JNI_TRUE) {
+ //bind the task object.
+ msg_task_t task = MSG_comm_get_task(comm);
+ xbt_assert(task != NULL, "Task is NULL");
+ jobject jtask_global = MSG_task_get_data(task);
+ //case where the data has already been retrieved
+ if (jtask_global == NULL) {
+ return;
+ }
+
+ //Make sure the data will be correctly gc.
+ jobject jtask_local = (*env)->NewLocalRef(env, jtask_global);
+ (*env)->DeleteGlobalRef(env, jtask_global);
+
+ (*env)->SetObjectField(env, jcomm, jtask_field_Comm_task, jtask_local);
+
+ MSG_task_set_data(task, NULL);
+ }
+
+}
+
JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Comm_unbind(JNIEnv *env, jobject jcomm) {
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "bind", "J");
- jfieldID id_task = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "bindTask", "J");
- msg_comm_t comm;
- m_task_t *task_received;
- if (!id || !id_task)
- return;
-
- task_received = (m_task_t*) (long) (*env)->GetLongField(env, jcomm, id_task);
- if (task_received != NULL) {
- xbt_free(task_received);
- }
-
- comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, id);
- MSG_comm_destroy(comm);
+Java_org_simgrid_msg_Comm_nativeInit(JNIEnv *env, jclass cls) {
+ jclass jfield_class_Comm = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+ if (!jfield_class_Comm) {
+ jxbt_throw_native(env,bprintf("Can't find the org/simgrid/msg/Comm class."));
+ return;
+ }
+ jcomm_field_Comm_bind = jxbt_get_jfield(env, jfield_class_Comm, "bind", "J");
+ jcomm_field_Comm_taskBind = jxbt_get_jfield(env, jfield_class_Comm, "taskBind", "J");
+ jcomm_field_Comm_receiving = jxbt_get_jfield(env, jfield_class_Comm, "receiving", "Z");
+ jtask_field_Comm_task = jxbt_get_jfield(env, jfield_class_Comm, "task", "Lorg/simgrid/msg/Task;");
+ jcomm_field_Comm_finished = jxbt_get_jfield(env, jfield_class_Comm, "finished", "Z");
+ if (!jcomm_field_Comm_bind || !jcomm_field_Comm_taskBind || !jcomm_field_Comm_receiving || !jtask_field_Comm_task || !jcomm_field_Comm_finished) {
+ jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Comm_destroy(JNIEnv *env, jobject jcomm) {
+ msg_comm_t comm;
+ msg_task_t *task_received;
+
+ task_received = (msg_task_t*) (long) (*env)->GetLongField(env, jcomm, jcomm_field_Comm_taskBind);
+ xbt_free(task_received);
+
+ comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, jcomm_field_Comm_bind);
+ MSG_comm_destroy(comm);
}
JNIEXPORT jboolean JNICALL
Java_org_simgrid_msg_Comm_test(JNIEnv *env, jobject jcomm) {
- msg_comm_t comm;
-
- jfieldID idComm = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "bind", "J");
- jclass jclass = jxbt_get_class(env,"org/simgrid/msg/Comm");
- jfieldID idTask = jxbt_get_jfield(env, jclass, "task", "Lorg/simgrid/msg/Task;");
- jfieldID id_receiving = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "receiving", "Z");
-
-
- if (!idComm || !idTask || !id_receiving) {
- jxbt_throw_native(env,bprintf("idTask or idComm is null"));
- return JNI_FALSE;
- }
-
- comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, idComm);
- if (!comm) {
- jxbt_throw_native(env,bprintf("comm is null"));
- return JNI_FALSE;
- }
- if (MSG_comm_test(comm)) {
- MSG_error_t status = MSG_comm_get_status(comm);
-
- if (status == MSG_OK) {
- //test if we are receiving or sending a task.
- jboolean jreceiving = (*env)->GetBooleanField(env, jcomm, id_receiving);
- if (jreceiving == JNI_TRUE) {
- //bind the task object.
- m_task_t task = MSG_comm_get_task(comm);
- xbt_assert(task != NULL, "Task is NULL");
- jobject jtask_global = MSG_task_get_data(task);
- //case where the data has already been retrieved
- if (jtask_global == NULL)
- {
- return JNI_TRUE;
- }
-
- //Make sure the data will be correctly gc.
- jobject jtask_local = (*env)->NewLocalRef(env, jtask_global);
- (*env)->DeleteGlobalRef(env, jtask_global);
-
- (*env)->SetObjectField(env, jcomm, idTask, jtask_local);
-
- MSG_task_set_data(task, NULL);
- }
- return JNI_TRUE;
- }
- else {
- //send the correct exception
- switch (status) {
- case MSG_TIMEOUT:
- jxbt_throw_time_out_failure(env,NULL);
- break;
- case MSG_TRANSFER_FAILURE:
- jxbt_throw_transfer_failure(env,NULL);
- break;
- case MSG_HOST_FAILURE:
- jxbt_throw_host_failure(env,NULL);
- break;
- default:
- jxbt_throw_native(env,bprintf("receive failed"));
- }
- return JNI_FALSE;
- }
- }
- else {
- return JNI_FALSE;
- }
+ msg_comm_t comm;
+ comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, jcomm_field_Comm_bind);
+
+ jboolean finished = (*env)->GetBooleanField(env, jcomm, jcomm_field_Comm_finished);
+ if (finished == JNI_TRUE) {
+ return JNI_TRUE;
+ }
+
+ if (!comm) {
+ jxbt_throw_native(env,bprintf("comm is null"));
+ return JNI_FALSE;
+ }
+ xbt_ex_t e;
+ TRY {
+ if (MSG_comm_test(comm)) {
+ msg_error_t status = MSG_comm_get_status(comm);
+ if (status == MSG_OK) {
+ jcomm_bind_task(env,jcomm);
+ return JNI_TRUE;
+ }
+ else {
+ //send the correct exception
+ jmsg_throw_status(env,status);
+ return JNI_FALSE;
+ }
+ }
+ else {
+ return JNI_FALSE;
+ }
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ }
+
+ return JNI_FALSE;
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Comm_waitCompletion(JNIEnv *env, jobject jcomm, jdouble timeout) {
+ msg_comm_t comm = (msg_comm_t) (long) (*env)->GetLongField(env, jcomm, jcomm_field_Comm_bind);
+ if (!comm) {
+ jxbt_throw_native(env,bprintf("comm is null"));
+ return;
+ }
+
+ jboolean finished = (*env)->GetBooleanField(env, jcomm, jcomm_field_Comm_finished);
+ if (finished == JNI_TRUE) {
+ return;
+ }
+
+ msg_error_t status;
+ xbt_ex_t e;
+ TRY {
+ status = MSG_comm_wait(comm,(double)timeout);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ }
+ (*env)->SetBooleanField(env, jcomm, jcomm_field_Comm_finished, JNI_TRUE);
+ if (status == MSG_OK) {
+ jcomm_bind_task(env,jcomm);
+ return;
+ }
+ else {
+ jmsg_throw_status(env,status);
+ }
+
}
