0N/A/*
2362N/A * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A#include <stdlib.h>
0N/A#include <jni.h>
0N/A#include "SharedMemory.h"
0N/A#include "com_sun_tools_jdi_SharedMemoryTransportService.h"
0N/A#include "jdwpTransport.h"
0N/A#include "shmemBase.h"
0N/A#include "sys.h"
0N/A
0N/A/*
0N/A * JNI interface to the shared memory transport. These JNI methods
0N/A * call the base shared memory support to do the real work.
0N/A *
0N/A * That is, this is the front-ends interface to our shared memory
0N/A * transport establishment code.
0N/A */
0N/A
0N/A/*
0N/A * When initializing the transport from the front end, we use
0N/A * standard malloc and free for allocation.
0N/A */
0N/Astatic void *allocateWrapper(jint size) {
0N/A return malloc(size);
0N/A}
0N/Astatic jdwpTransportCallback callbacks = {allocateWrapper, free};
0N/A
0N/Avoid
0N/AthrowException(JNIEnv *env, char *exceptionClassName, char *message)
0N/A{
0N/A jclass excClass = (*env)->FindClass(env, exceptionClassName);
0N/A if ((*env)->ExceptionOccurred(env)) {
0N/A return;
0N/A }
0N/A (*env)->ThrowNew(env, excClass, message);
0N/A}
0N/A
0N/Avoid
0N/AthrowShmemException(JNIEnv *env, char *message, jint errorCode)
0N/A{
0N/A char msg[80];
0N/A char buf[255];
0N/A
0N/A if (shmemBase_getlasterror(msg, sizeof(msg)) == SYS_OK) {
0N/A sprintf(buf, "%s: %s\n", message, msg);
0N/A } else {
0N/A sprintf(buf, "%s, error code = %d", message, errorCode);
0N/A }
0N/A throwException(env, "java/io/IOException", buf);
0N/A}
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: accept0
0N/A * Signature: (J)J
0N/A */
0N/AJNIEXPORT jlong JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_accept0
0N/A (JNIEnv *env, jobject thisObject, jlong id, jlong timeout)
0N/A{
0N/A SharedMemoryConnection *connection = NULL;
0N/A SharedMemoryTransport *transport = ID_TO_TRANSPORT(id);
0N/A jint rc;
0N/A
0N/A rc = shmemBase_accept(transport, (long)timeout, &connection);
0N/A if (rc != SYS_OK) {
0N/A if (rc == SYS_TIMEOUT) {
0N/A throwException(env, "com/sun/jdi/connect/TransportTimeoutException",
0N/A "Timed out waiting for target VM to connect");
0N/A } else {
0N/A throwShmemException(env, "shmemBase_accept failed", rc);
0N/A }
0N/A return -1;
0N/A }
0N/A return CONNECTION_TO_ID(connection);
0N/A}
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: attach0
0N/A * Signature: (Ljava/lang/String;)J
0N/A */
0N/AJNIEXPORT jlong JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_attach0
0N/A (JNIEnv *env, jobject thisObject, jstring address, jlong timeout)
0N/A{
0N/A SharedMemoryConnection *connection = NULL;
0N/A jint rc;
0N/A const char *addrChars;
0N/A
0N/A addrChars = (*env)->GetStringUTFChars(env, address, NULL);
0N/A if ((*env)->ExceptionOccurred(env)) {
0N/A return CONNECTION_TO_ID(connection);
0N/A } else if (addrChars == NULL) {
0N/A throwException(env, "java/lang/InternalError", "GetStringUTFChars failed");
0N/A return CONNECTION_TO_ID(connection);
0N/A }
0N/A
0N/A rc = shmemBase_attach(addrChars, (long)timeout, &connection);
0N/A if (rc != SYS_OK) {
0N/A throwShmemException(env, "shmemBase_attach failed", rc);
0N/A }
0N/A
0N/A (*env)->ReleaseStringUTFChars(env, address, addrChars);
0N/A
0N/A return CONNECTION_TO_ID(connection);
0N/A}
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: name
0N/A * Signature: (J)Ljava/lang/String;
0N/A */
0N/AJNIEXPORT jstring JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_name
0N/A (JNIEnv *env, jobject thisObject, jlong id)
0N/A{
0N/A char *namePtr;
0N/A jstring nameString = NULL;
0N/A
0N/A SharedMemoryTransport *transport = ID_TO_TRANSPORT(id);
0N/A jint rc = shmemBase_name(transport, &namePtr);
0N/A if (rc != SYS_OK) {
0N/A throwShmemException(env, "shmemBase_name failed", rc);
0N/A } else {
0N/A nameString = (*env)->NewStringUTF(env, namePtr);
0N/A if ((nameString == NULL) && !(*env)->ExceptionOccurred(env)) {
0N/A throwException(env, "java/lang/InternalError", "Unable to create string");
0N/A }
0N/A }
0N/A return nameString;
0N/A}
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: initialize
0N/A * Signature: ()V
0N/A */
0N/AJNIEXPORT void JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_initialize
0N/A (JNIEnv *env, jobject thisObject)
0N/A{
0N/A JavaVM *vm;
0N/A jint rc;
0N/A
0N/A rc = (*env)->GetJavaVM(env, &vm);
0N/A if (rc != 0) {
0N/A throwException(env, "java/lang/InternalError", "Unable to access Java VM");
0N/A return;
0N/A }
0N/A
0N/A rc = shmemBase_initialize(vm, &callbacks);
0N/A if (rc != SYS_OK) {
0N/A throwException(env, "java/lang/InternalError", "Unable to initialize Shared Memory transport");
0N/A return;
0N/A }
0N/A}
0N/A
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: startListening0
0N/A * Signature: (Ljava/lang/String;)J
0N/A */
0N/AJNIEXPORT jlong JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_startListening0
0N/A (JNIEnv *env, jobject thisObject, jstring address)
0N/A{
0N/A const char *addrChars = NULL;
0N/A jint rc;
0N/A jstring retAddress = NULL;
0N/A SharedMemoryTransport *transport = NULL;
0N/A
0N/A
0N/A if (address != NULL) {
0N/A addrChars = (*env)->GetStringUTFChars(env, address, NULL);
0N/A if ((*env)->ExceptionOccurred(env)) {
0N/A return TRANSPORT_TO_ID(transport);
0N/A } else if (addrChars == NULL) {
0N/A throwException(env, "java/lang/InternalError", "GetStringUTFChars failed");
0N/A return TRANSPORT_TO_ID(transport);
0N/A }
0N/A }
0N/A
0N/A rc = shmemBase_listen(addrChars, &transport);
0N/A if (rc != SYS_OK) {
0N/A throwShmemException(env, "shmemBase_listen failed", rc);
0N/A }
0N/A
0N/A if (addrChars != NULL) {
0N/A (*env)->ReleaseStringUTFChars(env, address, addrChars);
0N/A }
0N/A
0N/A return TRANSPORT_TO_ID(transport);
0N/A}
0N/A
0N/A/*
0N/A * Class: com_sun_tools_jdi_SharedMemoryTransport
0N/A * Method: stopListening0
0N/A * Signature: (J)V
0N/A */
0N/AJNIEXPORT void JNICALL Java_com_sun_tools_jdi_SharedMemoryTransportService_stopListening0
0N/A (JNIEnv *env, jobject thisObject, jlong id)
0N/A{
0N/A SharedMemoryTransport *transport = ID_TO_TRANSPORT(id);
0N/A shmemBase_closeTransport(transport);
0N/A}