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/*
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* Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#include "util.h"
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#include "invoker.h"
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#include "eventHandler.h"
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#include "threadControl.h"
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#include "outStream.h"
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static jrawMonitorID invokerLock;
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void
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invoker_initialize(void)
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{
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invokerLock = debugMonitorCreate("JDWP Invocation Lock");
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}
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void
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invoker_reset(void)
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{
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}
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void invoker_lock(void)
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{
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debugMonitorEnter(invokerLock);
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}
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void invoker_unlock(void)
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{
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debugMonitorExit(invokerLock);
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}
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static jbyte
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returnTypeTag(char *signature)
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{
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char *tagPtr = strchr(signature, SIGNATURE_END_ARGS);
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JDI_ASSERT(tagPtr);
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tagPtr++; /* 1st character after the end of args */
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return (jbyte)*tagPtr;
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}
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static jbyte
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nextArgumentTypeTag(void **cursor)
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{
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char *tagPtr = *cursor;
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jbyte argumentTag = (jbyte)*tagPtr;
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if (*tagPtr != SIGNATURE_END_ARGS) {
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/* Skip any array modifiers */
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while (*tagPtr == JDWP_TAG(ARRAY)) {
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tagPtr++;
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}
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/* Skip class name */
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if (*tagPtr == JDWP_TAG(OBJECT)) {
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tagPtr = strchr(tagPtr, SIGNATURE_END_CLASS) + 1;
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JDI_ASSERT(tagPtr);
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} else {
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/* Skip primitive sig */
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tagPtr++;
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}
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}
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*cursor = tagPtr;
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return argumentTag;
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}
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static jbyte
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firstArgumentTypeTag(char *signature, void **cursor)
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{
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JDI_ASSERT(signature[0] == SIGNATURE_BEGIN_ARGS);
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*cursor = signature + 1; /* skip to the first arg */
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return nextArgumentTypeTag(cursor);
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}
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/*
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* Note: argument refs may be destroyed on out-of-memory error
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*/
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static jvmtiError
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createGlobalRefs(JNIEnv *env, InvokeRequest *request)
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{
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jvmtiError error;
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jclass clazz = NULL;
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jobject instance = NULL;
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jint argIndex;
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jbyte argumentTag;
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jvalue *argument;
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void *cursor;
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jobject *argRefs = NULL;
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error = JVMTI_ERROR_NONE;
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if ( request->argumentCount > 0 ) {
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/*LINTED*/
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argRefs = jvmtiAllocate((jint)(request->argumentCount*sizeof(jobject)));
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if ( argRefs==NULL ) {
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error = AGENT_ERROR_OUT_OF_MEMORY;
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} else {
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/*LINTED*/
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(void)memset(argRefs, 0, request->argumentCount*sizeof(jobject));
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}
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}
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if ( error == JVMTI_ERROR_NONE ) {
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saveGlobalRef(env, request->clazz, &clazz);
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if (clazz == NULL) {
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error = AGENT_ERROR_OUT_OF_MEMORY;
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}
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}
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if ( error == JVMTI_ERROR_NONE && request->instance != NULL ) {
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saveGlobalRef(env, request->instance, &instance);
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if (instance == NULL) {
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error = AGENT_ERROR_OUT_OF_MEMORY;
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}
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}
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if ( error == JVMTI_ERROR_NONE && argRefs!=NULL ) {
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argIndex = 0;
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argumentTag = firstArgumentTypeTag(request->methodSignature, &cursor);
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argument = request->arguments;
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while (argumentTag != SIGNATURE_END_ARGS) {
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if ( argIndex > request->argumentCount ) {
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break;
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}
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if ((argumentTag == JDWP_TAG(OBJECT)) ||
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(argumentTag == JDWP_TAG(ARRAY))) {
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/* Create a global ref for any non-null argument */
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if (argument->l != NULL) {
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saveGlobalRef(env, argument->l, &argRefs[argIndex]);
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if (argRefs[argIndex] == NULL) {
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error = AGENT_ERROR_OUT_OF_MEMORY;
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break;
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}
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}
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}
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argument++;
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argIndex++;
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argumentTag = nextArgumentTypeTag(&cursor);
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}
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}
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#ifdef FIXUP /* Why isn't this an error? */
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/* Make sure the argument count matches */
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if ( error == JVMTI_ERROR_NONE && argIndex != request->argumentCount ) {
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error = AGENT_ERROR_INVALID_COUNT;
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}
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#endif
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/* Finally, put the global refs into the request if no errors */
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if ( error == JVMTI_ERROR_NONE ) {
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request->clazz = clazz;
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request->instance = instance;
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if ( argRefs!=NULL ) {
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argIndex = 0;
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argumentTag = firstArgumentTypeTag(request->methodSignature, &cursor);
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argument = request->arguments;
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while ( argIndex < request->argumentCount ) {
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if ((argumentTag == JDWP_TAG(OBJECT)) ||
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(argumentTag == JDWP_TAG(ARRAY))) {
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argument->l = argRefs[argIndex];
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}
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argument++;
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argIndex++;
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argumentTag = nextArgumentTypeTag(&cursor);
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}
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jvmtiDeallocate(argRefs);
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}
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return JVMTI_ERROR_NONE;
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192 |
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} else {
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/* Delete global references */
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if ( clazz != NULL ) {
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tossGlobalRef(env, &clazz);
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}
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198 |
if ( instance != NULL ) {
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tossGlobalRef(env, &instance);
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}
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201 |
if ( argRefs!=NULL ) {
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for ( argIndex=0; argIndex < request->argumentCount; argIndex++ ) {
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if ( argRefs[argIndex] != NULL ) {
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tossGlobalRef(env, &argRefs[argIndex]);
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}
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}
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jvmtiDeallocate(argRefs);
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}
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}
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210 |
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return error;
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}
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213 |
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214 |
static jvmtiError
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fillInvokeRequest(JNIEnv *env, InvokeRequest *request,
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jbyte invokeType, jbyte options, jint id,
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jthread thread, jclass clazz, jmethodID method,
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jobject instance,
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jvalue *arguments, jint argumentCount)
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{
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jvmtiError error;
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222 |
if (!request->available) {
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/*
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* Thread is not at a point where it can invoke.
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*/
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return AGENT_ERROR_INVALID_THREAD;
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227 |
}
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228 |
if (request->pending) {
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229 |
/*
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230 |
* Pending invoke
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231 |
*/
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return AGENT_ERROR_ALREADY_INVOKING;
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233 |
}
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234 |
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request->invokeType = invokeType;
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236 |
request->options = options;
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237 |
request->detached = JNI_FALSE;
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238 |
request->id = id;
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239 |
request->clazz = clazz;
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240 |
request->method = method;
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241 |
request->instance = instance;
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242 |
request->arguments = arguments;
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243 |
request->arguments = arguments;
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244 |
request->argumentCount = argumentCount;
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245 |
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246 |
request->returnValue.j = 0;
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247 |
request->exception = 0;
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248 |
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249 |
/*
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250 |
* Squirrel away the method signature
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251 |
*/
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252 |
error = methodSignature(method, NULL, &request->methodSignature, NULL);
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253 |
if (error != JVMTI_ERROR_NONE) {
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254 |
return error;
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255 |
}
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256 |
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257 |
/*
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258 |
* The given references for class and instance are not guaranteed
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259 |
* to be around long enough for invocation, so create new ones
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260 |
* here.
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261 |
*/
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262 |
error = createGlobalRefs(env, request);
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263 |
if (error != JVMTI_ERROR_NONE) {
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264 |
jvmtiDeallocate(request->methodSignature);
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265 |
return error;
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266 |
}
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267 |
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268 |
request->pending = JNI_TRUE;
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269 |
request->available = JNI_FALSE;
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270 |
return JVMTI_ERROR_NONE;
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271 |
}
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272 |
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273 |
void
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274 |
invoker_enableInvokeRequests(jthread thread)
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275 |
{
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276 |
InvokeRequest *request;
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277 |
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278 |
JDI_ASSERT(thread);
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279 |
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280 |
request = threadControl_getInvokeRequest(thread);
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281 |
if (request == NULL) {
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282 |
EXIT_ERROR(AGENT_ERROR_INVALID_THREAD, "getting thread invoke request");
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283 |
}
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284 |
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|
285 |
request->available = JNI_TRUE;
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|
286 |
}
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287 |
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288 |
jvmtiError
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289 |
invoker_requestInvoke(jbyte invokeType, jbyte options, jint id,
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290 |
jthread thread, jclass clazz, jmethodID method,
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291 |
jobject instance,
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|
292 |
jvalue *arguments, jint argumentCount)
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|
293 |
{
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|
294 |
JNIEnv *env = getEnv();
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|
295 |
InvokeRequest *request;
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|
296 |
jvmtiError error = JVMTI_ERROR_NONE;
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297 |
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|
298 |
debugMonitorEnter(invokerLock);
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|
299 |
request = threadControl_getInvokeRequest(thread);
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|
300 |
if (request != NULL) {
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301 |
error = fillInvokeRequest(env, request, invokeType, options, id,
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302 |
thread, clazz, method, instance,
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|
303 |
arguments, argumentCount);
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|
304 |
}
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305 |
debugMonitorExit(invokerLock);
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306 |
|
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307 |
if (error == JVMTI_ERROR_NONE) {
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308 |
if (options & JDWP_INVOKE_OPTIONS(SINGLE_THREADED) ) {
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309 |
/* true means it is okay to unblock the commandLoop thread */
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|
310 |
(void)threadControl_resumeThread(thread, JNI_TRUE);
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|
311 |
} else {
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312 |
(void)threadControl_resumeAll();
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|
313 |
}
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|
314 |
}
|
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|
315 |
|
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|
316 |
return error;
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|
317 |
}
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|
318 |
|
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|
319 |
static void
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|
320 |
invokeConstructor(JNIEnv *env, InvokeRequest *request)
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|
321 |
{
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|
322 |
jobject object;
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|
323 |
object = JNI_FUNC_PTR(env,NewObjectA)(env, request->clazz,
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|
324 |
request->method,
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|
325 |
request->arguments);
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|
326 |
request->returnValue.l = NULL;
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|
327 |
if (object != NULL) {
|
|
|
328 |
saveGlobalRef(env, object, &(request->returnValue.l));
|
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|
329 |
}
|
|
|
330 |
}
|
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|
331 |
|
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|
332 |
static void
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|
333 |
invokeStatic(JNIEnv *env, InvokeRequest *request)
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|
334 |
{
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|
335 |
switch(returnTypeTag(request->methodSignature)) {
|
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|
336 |
case JDWP_TAG(OBJECT):
|
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|
337 |
case JDWP_TAG(ARRAY): {
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|
338 |
jobject object;
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|
|
339 |
object = JNI_FUNC_PTR(env,CallStaticObjectMethodA)(env,
|
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|
340 |
request->clazz,
|
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|
341 |
request->method,
|
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|
342 |
request->arguments);
|
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|
343 |
request->returnValue.l = NULL;
|
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|
344 |
if (object != NULL) {
|
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|
345 |
saveGlobalRef(env, object, &(request->returnValue.l));
|
|
|
346 |
}
|
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|
347 |
break;
|
|
|
348 |
}
|
|
|
349 |
|
|
|
350 |
|
|
|
351 |
case JDWP_TAG(BYTE):
|
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|
352 |
request->returnValue.b = JNI_FUNC_PTR(env,CallStaticByteMethodA)(env,
|
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|
353 |
request->clazz,
|
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|
354 |
request->method,
|
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|
355 |
request->arguments);
|
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|
356 |
break;
|
|
|
357 |
|
|
|
358 |
case JDWP_TAG(CHAR):
|
|
|
359 |
request->returnValue.c = JNI_FUNC_PTR(env,CallStaticCharMethodA)(env,
|
|
|
360 |
request->clazz,
|
|
|
361 |
request->method,
|
|
|
362 |
request->arguments);
|
|
|
363 |
break;
|
|
|
364 |
|
|
|
365 |
case JDWP_TAG(FLOAT):
|
|
|
366 |
request->returnValue.f = JNI_FUNC_PTR(env,CallStaticFloatMethodA)(env,
|
|
|
367 |
request->clazz,
|
|
|
368 |
request->method,
|
|
|
369 |
request->arguments);
|
|
|
370 |
break;
|
|
|
371 |
|
|
|
372 |
case JDWP_TAG(DOUBLE):
|
|
|
373 |
request->returnValue.d = JNI_FUNC_PTR(env,CallStaticDoubleMethodA)(env,
|
|
|
374 |
request->clazz,
|
|
|
375 |
request->method,
|
|
|
376 |
request->arguments);
|
|
|
377 |
break;
|
|
|
378 |
|
|
|
379 |
case JDWP_TAG(INT):
|
|
|
380 |
request->returnValue.i = JNI_FUNC_PTR(env,CallStaticIntMethodA)(env,
|
|
|
381 |
request->clazz,
|
|
|
382 |
request->method,
|
|
|
383 |
request->arguments);
|
|
|
384 |
break;
|
|
|
385 |
|
|
|
386 |
case JDWP_TAG(LONG):
|
|
|
387 |
request->returnValue.j = JNI_FUNC_PTR(env,CallStaticLongMethodA)(env,
|
|
|
388 |
request->clazz,
|
|
|
389 |
request->method,
|
|
|
390 |
request->arguments);
|
|
|
391 |
break;
|
|
|
392 |
|
|
|
393 |
case JDWP_TAG(SHORT):
|
|
|
394 |
request->returnValue.s = JNI_FUNC_PTR(env,CallStaticShortMethodA)(env,
|
|
|
395 |
request->clazz,
|
|
|
396 |
request->method,
|
|
|
397 |
request->arguments);
|
|
|
398 |
break;
|
|
|
399 |
|
|
|
400 |
case JDWP_TAG(BOOLEAN):
|
|
|
401 |
request->returnValue.z = JNI_FUNC_PTR(env,CallStaticBooleanMethodA)(env,
|
|
|
402 |
request->clazz,
|
|
|
403 |
request->method,
|
|
|
404 |
request->arguments);
|
|
|
405 |
break;
|
|
|
406 |
|
|
|
407 |
case JDWP_TAG(VOID):
|
|
|
408 |
JNI_FUNC_PTR(env,CallStaticVoidMethodA)(env,
|
|
|
409 |
request->clazz,
|
|
|
410 |
request->method,
|
|
|
411 |
request->arguments);
|
|
|
412 |
break;
|
|
|
413 |
|
|
|
414 |
default:
|
|
|
415 |
EXIT_ERROR(AGENT_ERROR_NULL_POINTER,"Invalid method signature");
|
|
|
416 |
break;
|
|
|
417 |
}
|
|
|
418 |
}
|
|
|
419 |
|
|
|
420 |
static void
|
|
|
421 |
invokeVirtual(JNIEnv *env, InvokeRequest *request)
|
|
|
422 |
{
|
|
|
423 |
switch(returnTypeTag(request->methodSignature)) {
|
|
|
424 |
case JDWP_TAG(OBJECT):
|
|
|
425 |
case JDWP_TAG(ARRAY): {
|
|
|
426 |
jobject object;
|
|
|
427 |
object = JNI_FUNC_PTR(env,CallObjectMethodA)(env,
|
|
|
428 |
request->instance,
|
|
|
429 |
request->method,
|
|
|
430 |
request->arguments);
|
|
|
431 |
request->returnValue.l = NULL;
|
|
|
432 |
if (object != NULL) {
|
|
|
433 |
saveGlobalRef(env, object, &(request->returnValue.l));
|
|
|
434 |
}
|
|
|
435 |
break;
|
|
|
436 |
}
|
|
|
437 |
|
|
|
438 |
case JDWP_TAG(BYTE):
|
|
|
439 |
request->returnValue.b = JNI_FUNC_PTR(env,CallByteMethodA)(env,
|
|
|
440 |
request->instance,
|
|
|
441 |
request->method,
|
|
|
442 |
request->arguments);
|
|
|
443 |
break;
|
|
|
444 |
|
|
|
445 |
case JDWP_TAG(CHAR):
|
|
|
446 |
request->returnValue.c = JNI_FUNC_PTR(env,CallCharMethodA)(env,
|
|
|
447 |
request->instance,
|
|
|
448 |
request->method,
|
|
|
449 |
request->arguments);
|
|
|
450 |
break;
|
|
|
451 |
|
|
|
452 |
case JDWP_TAG(FLOAT):
|
|
|
453 |
request->returnValue.f = JNI_FUNC_PTR(env,CallFloatMethodA)(env,
|
|
|
454 |
request->instance,
|
|
|
455 |
request->method,
|
|
|
456 |
request->arguments);
|
|
|
457 |
break;
|
|
|
458 |
|
|
|
459 |
case JDWP_TAG(DOUBLE):
|
|
|
460 |
request->returnValue.d = JNI_FUNC_PTR(env,CallDoubleMethodA)(env,
|
|
|
461 |
request->instance,
|
|
|
462 |
request->method,
|
|
|
463 |
request->arguments);
|
|
|
464 |
break;
|
|
|
465 |
|
|
|
466 |
case JDWP_TAG(INT):
|
|
|
467 |
request->returnValue.i = JNI_FUNC_PTR(env,CallIntMethodA)(env,
|
|
|
468 |
request->instance,
|
|
|
469 |
request->method,
|
|
|
470 |
request->arguments);
|
|
|
471 |
break;
|
|
|
472 |
|
|
|
473 |
case JDWP_TAG(LONG):
|
|
|
474 |
request->returnValue.j = JNI_FUNC_PTR(env,CallLongMethodA)(env,
|
|
|
475 |
request->instance,
|
|
|
476 |
request->method,
|
|
|
477 |
request->arguments);
|
|
|
478 |
break;
|
|
|
479 |
|
|
|
480 |
case JDWP_TAG(SHORT):
|
|
|
481 |
request->returnValue.s = JNI_FUNC_PTR(env,CallShortMethodA)(env,
|
|
|
482 |
request->instance,
|
|
|
483 |
request->method,
|
|
|
484 |
request->arguments);
|
|
|
485 |
break;
|
|
|
486 |
|
|
|
487 |
case JDWP_TAG(BOOLEAN):
|
|
|
488 |
request->returnValue.z = JNI_FUNC_PTR(env,CallBooleanMethodA)(env,
|
|
|
489 |
request->instance,
|
|
|
490 |
request->method,
|
|
|
491 |
request->arguments);
|
|
|
492 |
break;
|
|
|
493 |
|
|
|
494 |
case JDWP_TAG(VOID):
|
|
|
495 |
JNI_FUNC_PTR(env,CallVoidMethodA)(env,
|
|
|
496 |
request->instance,
|
|
|
497 |
request->method,
|
|
|
498 |
request->arguments);
|
|
|
499 |
break;
|
|
|
500 |
|
|
|
501 |
default:
|
|
|
502 |
EXIT_ERROR(AGENT_ERROR_NULL_POINTER,"Invalid method signature");
|
|
|
503 |
break;
|
|
|
504 |
}
|
|
|
505 |
}
|
|
|
506 |
|
|
|
507 |
static void
|
|
|
508 |
invokeNonvirtual(JNIEnv *env, InvokeRequest *request)
|
|
|
509 |
{
|
|
|
510 |
switch(returnTypeTag(request->methodSignature)) {
|
|
|
511 |
case JDWP_TAG(OBJECT):
|
|
|
512 |
case JDWP_TAG(ARRAY): {
|
|
|
513 |
jobject object;
|
|
|
514 |
object = JNI_FUNC_PTR(env,CallNonvirtualObjectMethodA)(env,
|
|
|
515 |
request->instance,
|
|
|
516 |
request->clazz,
|
|
|
517 |
request->method,
|
|
|
518 |
request->arguments);
|
|
|
519 |
request->returnValue.l = NULL;
|
|
|
520 |
if (object != NULL) {
|
|
|
521 |
saveGlobalRef(env, object, &(request->returnValue.l));
|
|
|
522 |
}
|
|
|
523 |
break;
|
|
|
524 |
}
|
|
|
525 |
|
|
|
526 |
case JDWP_TAG(BYTE):
|
|
|
527 |
request->returnValue.b = JNI_FUNC_PTR(env,CallNonvirtualByteMethodA)(env,
|
|
|
528 |
request->instance,
|
|
|
529 |
request->clazz,
|
|
|
530 |
request->method,
|
|
|
531 |
request->arguments);
|
|
|
532 |
break;
|
|
|
533 |
|
|
|
534 |
case JDWP_TAG(CHAR):
|
|
|
535 |
request->returnValue.c = JNI_FUNC_PTR(env,CallNonvirtualCharMethodA)(env,
|
|
|
536 |
request->instance,
|
|
|
537 |
request->clazz,
|
|
|
538 |
request->method,
|
|
|
539 |
request->arguments);
|
|
|
540 |
break;
|
|
|
541 |
|
|
|
542 |
case JDWP_TAG(FLOAT):
|
|
|
543 |
request->returnValue.f = JNI_FUNC_PTR(env,CallNonvirtualFloatMethodA)(env,
|
|
|
544 |
request->instance,
|
|
|
545 |
request->clazz,
|
|
|
546 |
request->method,
|
|
|
547 |
request->arguments);
|
|
|
548 |
break;
|
|
|
549 |
|
|
|
550 |
case JDWP_TAG(DOUBLE):
|
|
|
551 |
request->returnValue.d = JNI_FUNC_PTR(env,CallNonvirtualDoubleMethodA)(env,
|
|
|
552 |
request->instance,
|
|
|
553 |
request->clazz,
|
|
|
554 |
request->method,
|
|
|
555 |
request->arguments);
|
|
|
556 |
break;
|
|
|
557 |
|
|
|
558 |
case JDWP_TAG(INT):
|
|
|
559 |
request->returnValue.i = JNI_FUNC_PTR(env,CallNonvirtualIntMethodA)(env,
|
|
|
560 |
request->instance,
|
|
|
561 |
request->clazz,
|
|
|
562 |
request->method,
|
|
|
563 |
request->arguments);
|
|
|
564 |
break;
|
|
|
565 |
|
|
|
566 |
case JDWP_TAG(LONG):
|
|
|
567 |
request->returnValue.j = JNI_FUNC_PTR(env,CallNonvirtualLongMethodA)(env,
|
|
|
568 |
request->instance,
|
|
|
569 |
request->clazz,
|
|
|
570 |
request->method,
|
|
|
571 |
request->arguments);
|
|
|
572 |
break;
|
|
|
573 |
|
|
|
574 |
case JDWP_TAG(SHORT):
|
|
|
575 |
request->returnValue.s = JNI_FUNC_PTR(env,CallNonvirtualShortMethodA)(env,
|
|
|
576 |
request->instance,
|
|
|
577 |
request->clazz,
|
|
|
578 |
request->method,
|
|
|
579 |
request->arguments);
|
|
|
580 |
break;
|
|
|
581 |
|
|
|
582 |
case JDWP_TAG(BOOLEAN):
|
|
|
583 |
request->returnValue.z = JNI_FUNC_PTR(env,CallNonvirtualBooleanMethodA)(env,
|
|
|
584 |
request->instance,
|
|
|
585 |
request->clazz,
|
|
|
586 |
request->method,
|
|
|
587 |
request->arguments);
|
|
|
588 |
break;
|
|
|
589 |
|
|
|
590 |
case JDWP_TAG(VOID):
|
|
|
591 |
JNI_FUNC_PTR(env,CallNonvirtualVoidMethodA)(env,
|
|
|
592 |
request->instance,
|
|
|
593 |
request->clazz,
|
|
|
594 |
request->method,
|
|
|
595 |
request->arguments);
|
|
|
596 |
break;
|
|
|
597 |
|
|
|
598 |
default:
|
|
|
599 |
EXIT_ERROR(AGENT_ERROR_NULL_POINTER,"Invalid method signature");
|
|
|
600 |
break;
|
|
|
601 |
}
|
|
|
602 |
}
|
|
|
603 |
|
|
|
604 |
jboolean
|
|
|
605 |
invoker_doInvoke(jthread thread)
|
|
|
606 |
{
|
|
|
607 |
JNIEnv *env;
|
|
|
608 |
jboolean startNow;
|
|
|
609 |
InvokeRequest *request;
|
|
|
610 |
|
|
|
611 |
JDI_ASSERT(thread);
|
|
|
612 |
|
|
|
613 |
debugMonitorEnter(invokerLock);
|
|
|
614 |
|
|
|
615 |
request = threadControl_getInvokeRequest(thread);
|
|
|
616 |
if (request == NULL) {
|
|
|
617 |
EXIT_ERROR(AGENT_ERROR_INVALID_THREAD, "getting thread invoke request");
|
|
|
618 |
}
|
|
|
619 |
|
|
|
620 |
request->available = JNI_FALSE;
|
|
|
621 |
startNow = request->pending && !request->started;
|
|
|
622 |
|
|
|
623 |
if (startNow) {
|
|
|
624 |
request->started = JNI_TRUE;
|
|
|
625 |
}
|
|
|
626 |
debugMonitorExit(invokerLock);
|
|
|
627 |
|
|
|
628 |
if (!startNow) {
|
|
|
629 |
return JNI_FALSE;
|
|
|
630 |
}
|
|
|
631 |
|
|
|
632 |
env = getEnv();
|
|
|
633 |
|
|
|
634 |
WITH_LOCAL_REFS(env, 2) { /* 1 for obj return values, 1 for exception */
|
|
|
635 |
|
|
|
636 |
jobject exception;
|
|
|
637 |
|
|
|
638 |
JNI_FUNC_PTR(env,ExceptionClear)(env);
|
|
|
639 |
|
|
|
640 |
switch (request->invokeType) {
|
|
|
641 |
case INVOKE_CONSTRUCTOR:
|
|
|
642 |
invokeConstructor(env, request);
|
|
|
643 |
break;
|
|
|
644 |
case INVOKE_STATIC:
|
|
|
645 |
invokeStatic(env, request);
|
|
|
646 |
break;
|
|
|
647 |
case INVOKE_INSTANCE:
|
|
|
648 |
if (request->options & JDWP_INVOKE_OPTIONS(NONVIRTUAL) ) {
|
|
|
649 |
invokeNonvirtual(env, request);
|
|
|
650 |
} else {
|
|
|
651 |
invokeVirtual(env, request);
|
|
|
652 |
}
|
|
|
653 |
break;
|
|
|
654 |
default:
|
|
|
655 |
JDI_ASSERT(JNI_FALSE);
|
|
|
656 |
}
|
|
|
657 |
request->exception = NULL;
|
|
|
658 |
exception = JNI_FUNC_PTR(env,ExceptionOccurred)(env);
|
|
|
659 |
if (exception != NULL) {
|
|
|
660 |
JNI_FUNC_PTR(env,ExceptionClear)(env);
|
|
|
661 |
saveGlobalRef(env, exception, &(request->exception));
|
|
|
662 |
}
|
|
|
663 |
|
|
|
664 |
} END_WITH_LOCAL_REFS(env);
|
|
|
665 |
|
|
|
666 |
return JNI_TRUE;
|
|
|
667 |
}
|
|
|
668 |
|
|
|
669 |
void
|
|
|
670 |
invoker_completeInvokeRequest(jthread thread)
|
|
|
671 |
{
|
|
|
672 |
JNIEnv *env = getEnv();
|
|
|
673 |
PacketOutputStream out;
|
|
|
674 |
jbyte tag;
|
|
|
675 |
jobject exc;
|
|
|
676 |
jvalue returnValue;
|
|
|
677 |
jint id;
|
|
|
678 |
InvokeRequest *request;
|
|
|
679 |
jboolean detached;
|
|
|
680 |
|
|
|
681 |
JDI_ASSERT(thread);
|
|
|
682 |
|
|
|
683 |
/* Prevent gcc errors on uninitialized variables. */
|
|
|
684 |
tag = 0;
|
|
|
685 |
exc = NULL;
|
|
|
686 |
id = 0;
|
|
|
687 |
|
|
|
688 |
eventHandler_lock(); /* for proper lock order */
|
|
|
689 |
debugMonitorEnter(invokerLock);
|
|
|
690 |
|
|
|
691 |
request = threadControl_getInvokeRequest(thread);
|
|
|
692 |
if (request == NULL) {
|
|
|
693 |
EXIT_ERROR(AGENT_ERROR_INVALID_THREAD, "getting thread invoke request");
|
|
|
694 |
}
|
|
|
695 |
|
|
|
696 |
JDI_ASSERT(request->pending);
|
|
|
697 |
JDI_ASSERT(request->started);
|
|
|
698 |
|
|
|
699 |
request->pending = JNI_FALSE;
|
|
|
700 |
request->started = JNI_FALSE;
|
|
|
701 |
request->available = JNI_TRUE; /* For next time around */
|
|
|
702 |
|
|
|
703 |
detached = request->detached;
|
|
|
704 |
if (!detached) {
|
|
|
705 |
if (request->options & JDWP_INVOKE_OPTIONS(SINGLE_THREADED)) {
|
|
|
706 |
(void)threadControl_suspendThread(thread, JNI_FALSE);
|
|
|
707 |
} else {
|
|
|
708 |
(void)threadControl_suspendAll();
|
|
|
709 |
}
|
|
|
710 |
|
|
|
711 |
if (request->invokeType == INVOKE_CONSTRUCTOR) {
|
|
|
712 |
/*
|
|
|
713 |
* Although constructors technically have a return type of
|
|
|
714 |
* void, we return the object created.
|
|
|
715 |
*/
|
|
|
716 |
tag = specificTypeKey(env, request->returnValue.l);
|
|
|
717 |
} else {
|
|
|
718 |
tag = returnTypeTag(request->methodSignature);
|
|
|
719 |
}
|
|
|
720 |
id = request->id;
|
|
|
721 |
exc = request->exception;
|
|
|
722 |
returnValue = request->returnValue;
|
|
|
723 |
}
|
|
|
724 |
|
|
|
725 |
/*
|
|
|
726 |
* Give up the lock before I/O operation
|
|
|
727 |
*/
|
|
|
728 |
debugMonitorExit(invokerLock);
|
|
|
729 |
eventHandler_unlock();
|
|
|
730 |
|
|
|
731 |
|
|
|
732 |
if (!detached) {
|
|
|
733 |
outStream_initReply(&out, id);
|
|
|
734 |
(void)outStream_writeValue(env, &out, tag, returnValue);
|
|
|
735 |
(void)outStream_writeObjectTag(env, &out, exc);
|
|
|
736 |
(void)outStream_writeObjectRef(env, &out, exc);
|
|
|
737 |
outStream_sendReply(&out);
|
|
|
738 |
}
|
|
|
739 |
}
|
|
|
740 |
|
|
|
741 |
jboolean
|
|
|
742 |
invoker_isPending(jthread thread)
|
|
|
743 |
{
|
|
|
744 |
InvokeRequest *request;
|
|
|
745 |
|
|
|
746 |
JDI_ASSERT(thread);
|
|
|
747 |
request = threadControl_getInvokeRequest(thread);
|
|
|
748 |
if (request == NULL) {
|
|
|
749 |
EXIT_ERROR(AGENT_ERROR_INVALID_THREAD, "getting thread invoke request");
|
|
|
750 |
}
|
|
|
751 |
return request->pending;
|
|
|
752 |
}
|
|
|
753 |
|
|
|
754 |
jboolean
|
|
|
755 |
invoker_isEnabled(jthread thread)
|
|
|
756 |
{
|
|
|
757 |
InvokeRequest *request;
|
|
|
758 |
|
|
|
759 |
JDI_ASSERT(thread);
|
|
|
760 |
request = threadControl_getInvokeRequest(thread);
|
|
|
761 |
if (request == NULL) {
|
|
|
762 |
EXIT_ERROR(AGENT_ERROR_INVALID_THREAD, "getting thread invoke request");
|
|
|
763 |
}
|
|
|
764 |
return request->available;
|
|
|
765 |
}
|
|
|
766 |
|
|
|
767 |
void
|
|
|
768 |
invoker_detach(InvokeRequest *request)
|
|
|
769 |
{
|
|
|
770 |
JDI_ASSERT(request);
|
|
|
771 |
debugMonitorEnter(invokerLock);
|
|
|
772 |
request->detached = JNI_TRUE;
|
|
|
773 |
debugMonitorExit(invokerLock);
|
|
|
774 |
}
|