8258f2fa06
We are moving to have all functions exported from ram-compress.c to start with compress_. Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231019110724.15324-12-quintela@redhat.com>
78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2011-2015 Red Hat Inc
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*
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* Authors:
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* Juan Quintela <quintela@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_MIGRATION_COMPRESS_H
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#define QEMU_MIGRATION_COMPRESS_H
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#include "qemu-file.h"
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#include "qapi/qapi-types-migration.h"
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enum CompressResult {
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RES_NONE = 0,
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RES_ZEROPAGE = 1,
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RES_COMPRESS = 2
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};
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typedef enum CompressResult CompressResult;
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struct CompressParam {
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bool done;
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bool quit;
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bool trigger;
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CompressResult result;
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QEMUFile *file;
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QemuMutex mutex;
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QemuCond cond;
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RAMBlock *block;
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ram_addr_t offset;
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/* internally used fields */
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z_stream stream;
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uint8_t *originbuf;
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};
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typedef struct CompressParam CompressParam;
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void compress_threads_save_cleanup(void);
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int compress_threads_save_setup(void);
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bool compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset,
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int (send_queued_data(CompressParam *)));
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int wait_for_decompress_done(void);
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void compress_threads_load_cleanup(void);
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int compress_threads_load_setup(QEMUFile *f);
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void decompress_data_with_multi_threads(QEMUFile *f, void *host, int len);
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void populate_compress(MigrationInfo *info);
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uint64_t compress_ram_pages(void);
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void update_compress_thread_counts(const CompressParam *param, int bytes_xmit);
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void compress_update_rates(uint64_t page_count);
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int compress_send_queued_data(CompressParam *param);
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void compress_flush_data(void);
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#endif
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