зеркало из https://github.com/mozilla/gecko-dev.git
147 строки
4.2 KiB
C++
147 строки
4.2 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Sun Microsystems,
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* Inc. Portions created by Sun are
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* Copyright (C) 1999 Sun Microsystems, Inc. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include <stdlib.h>
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#include "nsIInputStream.h"
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#include "org_mozilla_pluglet_mozilla_PlugletInputStream.h"
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#include "PlugletLog.h"
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static jfieldID peerFID = NULL;
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/*
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* Class: org_mozilla_pluglet_mozilla_PlugletInputStream
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* Method: available
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* Signature: ()I
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*/
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JNIEXPORT jint JNICALL Java_org_mozilla_pluglet_mozilla_PlugletInputStream_available
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(JNIEnv *env, jobject jthis) {
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nsIInputStream * input = (nsIInputStream*)env->GetLongField(jthis, peerFID);
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PRUint32 res = 0;
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if(input) {
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.available: stream = %p\n", input));
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input->Available(&res);
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}
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return (jint)res;
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}
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/*
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* Class: org_mozilla_pluglet_mozilla_PlugletInputStream
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* Method: close
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_mozilla_pluglet_mozilla_PlugletInputStream_close
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(JNIEnv *env, jobject jthis) {
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nsIInputStream * input = (nsIInputStream*)env->GetLongField(jthis, peerFID);
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if (input) {
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.close: stream = %p\n", input));
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NS_RELEASE(input);
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env->SetLongField(jthis, peerFID,0);
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}
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}
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/*
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* Class: org_mozilla_pluglet_mozilla_PlugletInputStream
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* Method: nativeRead
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* Signature: ([BII)I
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*/
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JNIEXPORT jint JNICALL Java_org_mozilla_pluglet_mozilla_PlugletInputStream_nativeRead
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(JNIEnv *env, jobject jthis, jbyteArray b, jint off, jint len) {
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jint retval = -1;
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nsIInputStream * input = (nsIInputStream*)env->GetLongField(jthis, peerFID);
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if (input) {
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.nativeRead: stream = %p, off = %i, len = %i\n", input, off, len));
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}
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if (env->ExceptionOccurred()) {
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return retval;
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}
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if (!input) {
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jclass ex = env->FindClass("java/io/IOException");
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if (!ex) {
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return retval;
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}
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env->ThrowNew(ex,"Stream was closed");
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return retval;
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}
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jbyte * bufElems = (jbyte*) malloc(sizeof(jbyte)*len);
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if (!bufElems) {
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return retval;
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//nb throw OutOfMemory
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}
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nsresult res;
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PRUint32 actualLen;
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res = input->Read((char*)bufElems,(PRUint32)len,&actualLen);
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if (NS_FAILED(res)) {
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free(bufElems);
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return retval;
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}
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retval = actualLen;
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.nativeRead: %i bytes read\n", retval));
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env->SetByteArrayRegion(b,off,retval,bufElems);
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free(bufElems);
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return (len > 0 && actualLen <= 0) ? -1 : retval;
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}
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/*
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* Class: org_mozilla_pluglet_mozilla_PlugletInputStream
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* Method: nativeFinalize
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_mozilla_pluglet_mozilla_PlugletInputStream_nativeFinalize
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(JNIEnv *env, jobject jthis) {
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/* nb do as in java-dom stuff */
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nsIInputStream * input = (nsIInputStream*)env->GetLongField(jthis, peerFID);
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if(input) {
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.nativeFinalize: stream = %p\n", input));
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NS_RELEASE(input);
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}
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}
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/*
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* Class: org_mozilla_pluglet_mozilla_PlugletInputStream
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* Method: nativeInitialize
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_mozilla_pluglet_mozilla_PlugletInputStream_nativeInitialize
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(JNIEnv *env, jobject jthis) {
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if(!peerFID) {
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peerFID = env->GetFieldID(env->GetObjectClass(jthis),"peer","J");
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if (!peerFID) {
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return;
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}
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}
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nsIInputStream * input = (nsIInputStream*)env->GetLongField(jthis, peerFID);
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if (input) {
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PR_LOG(PlugletLog::log, PR_LOG_DEBUG,
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("PlugletInputStream.nativeInitialize: stream = %p\n", input));
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input->AddRef();
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}
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}
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