gecko-dev/java/plugins/jni/ByteRanges.cpp

114 строки
3.0 KiB
C++
Исходник Обычный вид История

1999-09-08 04:21:03 +04:00
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
1999-09-08 04:21:03 +04:00
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
1999-09-08 04:21:03 +04:00
*
* The Initial Developer of the Original Code is Sun Microsystems,
* Inc. Portions created by Sun are
* Copyright (C) 1999 Sun Microsystems, Inc. All
* Rights Reserved.
*
* Contributor(s):
1999-09-08 04:21:03 +04:00
*/
#include <stdlib.h>
1999-09-08 04:21:03 +04:00
#include "ByteRanges.h"
jfieldID ByteRanges::offsetFID = NULL;
jfieldID ByteRanges::lengthFID = NULL;
jfieldID ByteRanges::currentFID = NULL;
nsByteRange* ByteRanges::GetByteRanges(JNIEnv *env, jobject object) {
if (!currentFID) {
Initialize(env);
if (!currentFID) {
return NULL;
}
}
jint current = 0; //curent is the last one, sorry for this name :)
current = env->GetIntField(object,currentFID);
if (env->ExceptionOccurred()) {
env->ExceptionDescribe();
return NULL;
}
if (!current) { //empty ranges
return NULL;
}
jintArray joffset = NULL;
joffset = (jintArray)env->GetObjectField(object,offsetFID);
if (!joffset) {
env->ExceptionDescribe();
return NULL;
}
jintArray jlength = NULL;
jlength = (jintArray)env->GetObjectField(object,lengthFID);
if (!jlength) {
env->ExceptionDescribe();
return NULL;
}
jint *offset = NULL;
jint *length = NULL;
offset = env->GetIntArrayElements(joffset,NULL);
if(!offset) {
env->ExceptionDescribe();
return NULL;
}
length = env->GetIntArrayElements(joffset,NULL);
if(!length) {
env->ExceptionDescribe();
return NULL;
}
nsByteRange *res = (nsByteRange*)malloc(sizeof(nsByteRange)*current);
if(!res) {
env->ReleaseIntArrayElements(joffset,offset,0);
env->ReleaseIntArrayElements(jlength,length,0);
return NULL;
}
int i;
for (i = 0;i<current;i++) {
1999-09-08 04:21:03 +04:00
res[i].offset = offset[i];
res[i].length = length[i];
res[i].next = &res[i+1];
}
res[i].next = NULL;
env->ReleaseIntArrayElements(joffset,offset,0);
env->ReleaseIntArrayElements(jlength,length,0);
return res;
}
void ByteRanges::FreeByteRanges(nsByteRange * ranges) {
free(ranges);
}
void ByteRanges::Initialize(JNIEnv *env) {
jclass clazz = env->FindClass("org/mozilla/pluglet/mozilla/ByteRanges");
1999-09-08 04:21:03 +04:00
if(!clazz) {
env->ExceptionDescribe();
return;
}
offsetFID = env->GetFieldID(clazz,"offset","[I");
if(!offsetFID) {
env->ExceptionDescribe();
return;
}
lengthFID = env->GetFieldID(clazz,"length","[I");
if(!lengthFID) {
env->ExceptionDescribe();
return;
}
currentFID = env->GetFieldID(clazz,"current","I");
if(!currentFID) {
env->ExceptionDescribe();
return;
}
}