mirror of
https://github.com/lax1dude/unsafe-memcpy-for-java.git
synced 2024-12-04 06:24:14 -08:00
55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2024 lax1dude
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <jni.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "utils.h"
|
|
|
|
#define UNSAFE_MEMSET_IMPL(address, value, byteLength)\
|
|
memset((void*)(address), (int)(value), (size_t)(byteLength));
|
|
|
|
#define UNSAFE_MEMSET_BUFFER_IMPL(jniHandle, address, offset, value, byteLength)\
|
|
uint64_t dstBuffer = (uint64_t)(*jniHandle)->GetDirectBufferAddress(jniHandle, address);\
|
|
if(!dstBuffer) {\
|
|
unsafeThrowNotDirectBuffer(jniHandle);\
|
|
return;\
|
|
}\
|
|
UNSAFE_MEMSET_IMPL(dstBuffer + offset, value, byteLength);
|
|
|
|
#define UNSAFE_MEMSET_ARRAY_IMPL(jniHandle, address, offset, value, byteLength)\
|
|
uint64_t dstArray = (uint64_t)(*jniHandle)->GetPrimitiveArrayCritical(jniHandle, address, NULL);\
|
|
if(!dstArray) {\
|
|
unsafeThrowOutOfMemory(jniHandle);\
|
|
return;\
|
|
}\
|
|
UNSAFE_MEMSET_IMPL(dstArray + offset, value, byteLength);\
|
|
(*jniHandle)->ReleasePrimitiveArrayCritical(jniHandle, address, (void*)dstArray, JNI_COMMIT);
|