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