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migration: remove support for non-iovec based write handlers

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All the remaining QEMUFile implementations provide an iovec
based write handler, so the put_buffer callback can be removed
to simplify the code.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1461751518-12128-28-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-04-27 11:05:17 +01:00 • committed by Amit Shah
parent e122636562
commit 11808bb0c4
3 changed files with 8 additions and 45 deletions
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9
include/migration/qemu-file.h
View file

@ -28,14 +28,6 @@
#include "io/channel.h"
/* This function writes a chunk of data to a file at the given position.
* The pos argument can be ignored if the file is only being used for
* streaming. The handler must write all of the data or return a negative
* errno value.
*/
typedef ssize_t (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
int64_t pos, size_t size);
/* Read a chunk of data from a file at the given position. The pos argument
* can be ignored if the file is only be used for streaming. The number of
* bytes actually read should be returned.
@ -109,7 +101,6 @@ typedef QEMUFile *(QEMURetPathFunc)(void *opaque);
typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr);
typedef struct QEMUFileOps {
QEMUFilePutBufferFunc *put_buffer;
QEMUFileGetBufferFunc *get_buffer;
QEMUFileCloseFunc *close;
QEMUFileGetFD *get_fd;