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Move copy out of qemu_peek_buffer

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qemu_peek_buffer currently copies the data it reads into a buffer,
however a future patch wants access to the buffer without the copy,
hence rework to remove the copy to the layer above.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2015-05-21 13:24:15 +01:00 • committed by Juan Quintela
parent bca7856ae8
commit 7c1e52ba6f
3 changed files with 11 additions and 8 deletions
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2
include/migration/qemu-file.h
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@ -157,7 +157,7 @@ static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
void qemu_put_be16(QEMUFile *f, unsigned int v);
void qemu_put_be32(QEMUFile *f, unsigned int v);
void qemu_put_be64(QEMUFile *f, uint64_t v);
int qemu_peek_buffer(QEMUFile *f, uint8_t *buf, int size, size_t offset);
int qemu_peek_buffer(QEMUFile *f, uint8_t **buf, int size, size_t offset);
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
ssize_t qemu_put_compression_data(QEMUFile *f, const uint8_t *p, size_t size,
int level);