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https://gitlab.com/qemu-project/qemu
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0222111a22
The 'compress' migration capability enables the old compression code
which has shown issues over the years and is thought to be less stable
and tested than the more recent multifd-based compression. The old
compression code has been deprecated in 8.2 and now is time to remove
it.
Deprecation commit 864128df46 ("migration: Deprecate old compression
method").
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
84 lines
3.2 KiB
C
84 lines
3.2 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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*
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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 MIGRATION_QEMU_FILE_H
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#define MIGRATION_QEMU_FILE_H
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#include <zlib.h>
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#include "exec/cpu-common.h"
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#include "io/channel.h"
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QEMUFile *qemu_file_new_input(QIOChannel *ioc);
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QEMUFile *qemu_file_new_output(QIOChannel *ioc);
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int qemu_fclose(QEMUFile *f);
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/*
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* qemu_file_transferred:
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*
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* No flush is performed and the reported amount will include the size
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* of any queued buffers, on top of the amount actually transferred.
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*
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* Returns: the total bytes transferred and queued
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*/
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uint64_t qemu_file_transferred(QEMUFile *f);
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/*
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* put_buffer without copying the buffer.
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* The buffer should be available till it is sent asynchronously.
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*/
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void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, size_t size,
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bool may_free);
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#include "migration/qemu-file-types.h"
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size_t coroutine_mixed_fn qemu_peek_buffer(QEMUFile *f, uint8_t **buf, size_t size, size_t offset);
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size_t coroutine_mixed_fn qemu_get_buffer_in_place(QEMUFile *f, uint8_t **buf, size_t size);
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/*
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* Note that you can only peek continuous bytes from where the current pointer
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* is; you aren't guaranteed to be able to peak to +n bytes unless you've
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* previously peeked +n-1.
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*/
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int coroutine_mixed_fn qemu_peek_byte(QEMUFile *f, int offset);
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void qemu_file_skip(QEMUFile *f, int size);
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int qemu_file_get_error_obj_any(QEMUFile *f1, QEMUFile *f2, Error **errp);
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void qemu_file_set_error_obj(QEMUFile *f, int ret, Error *err);
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int qemu_file_get_error_obj(QEMUFile *f, Error **errp);
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void qemu_file_set_error(QEMUFile *f, int ret);
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int qemu_file_shutdown(QEMUFile *f);
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QEMUFile *qemu_file_get_return_path(QEMUFile *f);
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int qemu_fflush(QEMUFile *f);
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void qemu_file_set_blocking(QEMUFile *f, bool block);
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int qemu_file_get_to_fd(QEMUFile *f, int fd, size_t size);
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void qemu_set_offset(QEMUFile *f, off_t off, int whence);
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off_t qemu_get_offset(QEMUFile *f);
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void qemu_put_buffer_at(QEMUFile *f, const uint8_t *buf, size_t buflen,
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off_t pos);
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size_t qemu_get_buffer_at(QEMUFile *f, const uint8_t *buf, size_t buflen,
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off_t pos);
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QIOChannel *qemu_file_get_ioc(QEMUFile *file);
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#endif
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