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migration/qemu-file: add utility methods for working with seekable channels

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Add utility methods that will be needed when implementing 'fixed-ram'
migration capability.

qemu_file_is_seekable
qemu_put_buffer_at
qemu_get_buffer_at
qemu_set_offset
qemu_get_offset

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
fixed total_transferred accounting

restructured to use qio_channel_file_preadv instead of the _full
variant
This commit is contained in:
Nikolay Borisov
2022-10-28 13:39:07 +03:00
committed by Fabiano Rosas
parent 453dffb218
commit ed84f4666a
3 changed files with 86 additions and 0 deletions
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2
include/migration/qemu-file-types.h
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@@ -50,6 +50,8 @@ unsigned int qemu_get_be16(QEMUFile *f);
unsigned int qemu_get_be32(QEMUFile *f);
uint64_t qemu_get_be64(QEMUFile *f);
bool qemu_file_is_seekable(QEMUFile *f);
static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
{
qemu_put_be64(f, *pv);