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migration: use qemu_file_set_error 

Remove the return value of buffered_flush, pass it via the error code
of s->file.  Once this is done, the error can be retrieved simply
via migrate_fd_close's call to qemu_fclose.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-02-22 17:36:16 +01:00 committed by Juan Quintela
parent f5821518ed
commit 63dfbd7ee0
1 changed files with 6 additions and 16 deletions
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22
migration.c
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@ -518,7 +518,7 @@ int64_t migrate_xbzrle_cache_size(void)
/* migration thread support */
static ssize_t buffered_flush(MigrationState *s)
static void buffered_flush(MigrationState *s)
{
size_t offset = 0;
ssize_t ret = 0;
@ -545,9 +545,8 @@ static ssize_t buffered_flush(MigrationState *s)
s->buffer_size -= offset;
if (ret < 0) {
return ret;
qemu_file_set_error(s->file, ret);
}
return offset;
}
static int buffered_put_buffer(void *opaque, const uint8_t *buf,
@ -586,25 +585,15 @@ static int buffered_put_buffer(void *opaque, const uint8_t *buf,
static int buffered_close(void *opaque)
{
MigrationState *s = opaque;
ssize_t ret = 0;
int ret2;
DPRINTF("closing\n");
s->xfer_limit = INT_MAX;
while (!qemu_file_get_error(s->file) && s->buffer_size) {
ret = buffered_flush(s);
if (ret < 0) {
break;
}
}
ret2 = migrate_fd_close(s);
if (ret >= 0) {
ret = ret2;
buffered_flush(s);
}
s->complete = true;
return ret;
return migrate_fd_close(s);
}
static int buffered_get_fd(void *opaque)
@ -750,7 +739,8 @@ static void *buffered_file_thread(void *opaque)
g_usleep((initial_time + BUFFER_DELAY - current_time)*1000);
sleep_time += qemu_get_clock_ms(rt_clock) - current_time;
}
ret = buffered_flush(s);
buffered_flush(s);
ret = qemu_file_get_error(s->file);
}
if (ret < 0) {