+++ /dev/null
-/* Functions related to the java comm instances */
-
-/* Copyright (c) 2012-2015. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "jmsg_comm.h"
-#include "jxbt_utilities.h"
-#include "jmsg.h"
-
-#include <simgrid/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) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
- //test if we are receiving or sending a task.
- jboolean jreceiving = env->GetBooleanField(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 != nullptr, "Task is nullptr");
- jobject jtask_global = static_cast<jobject>(MSG_task_get_data(task));
- //case where the data has already been retrieved
- if (jtask_global == nullptr) {
- return;
- }
-
- //Make sure the data will be correctly gc.
- jobject jtask_local = env->NewLocalRef(jtask_global);
- env->DeleteGlobalRef(jtask_global);
-
- env->SetObjectField(jcomm, jtask_field_Comm_task, jtask_local);
-
- MSG_task_set_data(task, nullptr);
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Comm_nativeInit(JNIEnv *env, jclass cls) {
- jclass jfield_class_Comm = env->FindClass("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_nativeFinalize(JNIEnv *env, jobject jcomm) {
- msg_comm_t comm;
- msg_task_t *task_received;
-
- task_received = (msg_task_t*) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_taskBind);
- xbt_free(task_received);
-
- comm = (msg_comm_t) (uintptr_t) env->GetLongField(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;
- comm = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
-
- jboolean finished = env->GetBooleanField(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;
- }
-
- 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;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Comm_waitCompletion(JNIEnv *env, jobject jcomm, jdouble timeout) {
- msg_comm_t comm = (msg_comm_t) (uintptr_t) env->GetLongField(jcomm, jcomm_field_Comm_bind);
- if (!comm) {
- jxbt_throw_native(env,bprintf("comm is null"));
- return;
- }
-
- jboolean finished = env->GetBooleanField(jcomm, jcomm_field_Comm_finished);
- if (finished == JNI_TRUE) {
- return;
- }
-
- msg_error_t status;
- status = MSG_comm_wait(comm,static_cast<double>(timeout));
- env->SetBooleanField(jcomm, jcomm_field_Comm_finished, JNI_TRUE);
- if (status == MSG_OK) {
- jcomm_bind_task(env,jcomm);
- return;
- } else {
- jmsg_throw_status(env,status);
- }
-}