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migration/qemu-file: add qemu_put_counted_string()

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Add function opposite to qemu_get_counted_string.
qemu_put_counted_string puts one-byte length of the string (string
should not be longer than 255 characters), and then it puts the string,
without last zero byte.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20180313180320.339796-9-vsementsov@virtuozzo.com
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-03-13 15:34:00 -04:00 • committed by John Snow
parent dd6bb91450
commit f0d64cb729
2 changed files with 15 additions and 0 deletions
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2
migration/qemu-file.h
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@ -174,4 +174,6 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
ram_addr_t offset, size_t size,
uint64_t *bytes_sent);
void qemu_put_counted_string(QEMUFile *f, const char *name);
#endif