corda/classpath/java-util-zip.cpp
Joel Dice 87b02eb949 update copyright years
Previously, I used a shell script to extract modification date ranges
from the Git history, but that was complicated and unreliable, so now
every file just gets the same year range in its copyright header.  If
someone needs to know when a specific file was modified and by whom,
they can look at the Git history themselves; no need to include it
redundantly in the header.
2013-07-02 20:52:38 -06:00

163 lines
4.1 KiB
C++

/* Copyright (c) 2008-2013, Avian Contributors
Permission to use, copy, modify, and/or distribute this software
for any purpose with or without fee is hereby granted, provided
that the above copyright notice and this permission notice appear
in all copies.
There is NO WARRANTY for this software. See license.txt for
details. */
#include "stdlib.h"
#include "string.h"
#include "avian/zlib-custom.h"
#include "jni.h"
#include "jni-util.h"
extern "C" JNIEXPORT jlong JNICALL
Java_java_util_zip_Inflater_make
(JNIEnv* e, jclass, jboolean nowrap)
{
z_stream* s = static_cast<z_stream*>(malloc(sizeof(z_stream)));
if (s == 0) {
throwNew(e, "java/lang/OutOfMemoryError", 0);
return 0;
}
memset(s, 0, sizeof(z_stream));
int r = inflateInit2(s, (nowrap ? -15 : 15));
if (r != Z_OK) {
free(s);
throwNew(e, "java/lang/RuntimeException", zError(r));
return 0;
}
return reinterpret_cast<jlong>(s);
}
extern "C" JNIEXPORT void JNICALL
Java_java_util_zip_Inflater_dispose(JNIEnv*, jclass, jlong peer)
{
z_stream* s = reinterpret_cast<z_stream*>(peer);
inflateEnd(s);
free(s);
}
extern "C" JNIEXPORT void JNICALL
Java_java_util_zip_Inflater_inflate
(JNIEnv* e, jclass, jlong peer,
jbyteArray input, jint inputOffset, jint inputLength,
jbyteArray output, jint outputOffset, jint outputLength,
jintArray results)
{
z_stream* s = reinterpret_cast<z_stream*>(peer);
jbyte* in = static_cast<jbyte*>(malloc(inputLength));
if (in == 0) {
throwNew(e, "java/lang/OutOfMemoryError", 0);
return;
}
jbyte* out = static_cast<jbyte*>(malloc(outputLength));
if (out == 0) {
free(in);
throwNew(e, "java/lang/OutOfMemoryError", 0);
return;
}
e->GetByteArrayRegion(input, inputOffset, inputLength, in);
s->next_in = reinterpret_cast<Bytef*>(in);
s->avail_in = inputLength;
s->next_out = reinterpret_cast<Bytef*>(out);
s->avail_out = outputLength;
int r = inflate(s, Z_SYNC_FLUSH);
jint resultArray[3]
= { r,
static_cast<jint>(inputLength - s->avail_in),
static_cast<jint>(outputLength - s->avail_out) };
free(in);
e->SetByteArrayRegion(output, outputOffset, resultArray[2], out);
free(out);
e->SetIntArrayRegion(results, 0, 3, resultArray);
}
extern "C" JNIEXPORT jlong JNICALL
Java_java_util_zip_Deflater_make
(JNIEnv* e, jclass, jboolean nowrap, jint level)
{
z_stream* s = static_cast<z_stream*>(malloc(sizeof(z_stream)));
if (s == 0) {
throwNew(e, "java/lang/OutOfMemoryError", 0);
return 0;
}
memset(s, 0, sizeof(z_stream));
int r = deflateInit2(s, level, (nowrap ? -15 : 15));
if (r != Z_OK) {
free(s);
throwNew(e, "java/lang/RuntimeException", zError(r));
return 0;
}
return reinterpret_cast<jlong>(s);
}
extern "C" JNIEXPORT void JNICALL
Java_java_util_zip_Deflater_dispose(JNIEnv*, jclass, jlong peer)
{
z_stream* s = reinterpret_cast<z_stream*>(peer);
deflateEnd(s);
free(s);
}
extern "C" JNIEXPORT void JNICALL
Java_java_util_zip_Deflater_deflate
(JNIEnv* e, jclass, jlong peer,
jbyteArray input, jint inputOffset, jint inputLength,
jbyteArray output, jint outputOffset, jint outputLength,
jboolean finish, jintArray results)
{
z_stream* s = reinterpret_cast<z_stream*>(peer);
jbyte* in = static_cast<jbyte*>(malloc(inputLength));
if (in == 0) {
throwNew(e, "java/lang/OutOfMemoryError", 0);
return;
}
jbyte* out = static_cast<jbyte*>(malloc(outputLength));
if (out == 0) {
free(in);
throwNew(e, "java/lang/OutOfMemoryError", 0);
return;
}
e->GetByteArrayRegion(input, inputOffset, inputLength, in);
s->next_in = reinterpret_cast<Bytef*>(in);
s->avail_in = inputLength;
s->next_out = reinterpret_cast<Bytef*>(out);
s->avail_out = outputLength;
int r = deflate(s, finish ? Z_FINISH : Z_NO_FLUSH);
jint resultArray[3]
= { r,
static_cast<jint>(inputLength - s->avail_in),
static_cast<jint>(outputLength - s->avail_out) };
free(in);
e->SetByteArrayRegion(output, outputOffset, resultArray[2], out);
free(out);
e->SetIntArrayRegion(results, 0, 3, resultArray);
}