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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2011-2015 Red Hat Inc
*
* Authors:
* Juan Quintela <quintela@redhat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_MIGRATION_COMPRESS_H
#define QEMU_MIGRATION_COMPRESS_H
#include "qemu-file.h"
enum CompressResult {
RES_NONE = 0,
RES_ZEROPAGE = 1,
RES_COMPRESS = 2
};
typedef enum CompressResult CompressResult;
struct CompressParam {
bool done;
bool quit;
bool trigger;
CompressResult result;
QEMUFile *file;
QemuMutex mutex;
QemuCond cond;
RAMBlock *block;
ram_addr_t offset;
/* internally used fields */
z_stream stream;
uint8_t *originbuf;
};
typedef struct CompressParam CompressParam;
void compress_threads_save_cleanup(void);
int compress_threads_save_setup(void);
void flush_compressed_data(int (send_queued_data(CompressParam *)));
int compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset,
int (send_queued_data(CompressParam *)));
int wait_for_decompress_done(void);
void compress_threads_load_cleanup(void);
int compress_threads_load_setup(QEMUFile *f);
void decompress_data_with_multi_threads(QEMUFile *f, void *host, int len);
#endif
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