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qmp: add block_stream command

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Add the block_stream command, which starts copy backing file contents
into the image file.  Also add the BLOCK_JOB_COMPLETED QMP event which
is emitted when image streaming completes.  Later patches add control
over the background copy speed, cancelation, and querying running
streaming operations.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2012-01-18 14:40:46 +00:00 • committed by Kevin Wolf
parent 5094a6c016
commit 12bd451fe0
12 changed files with 173 additions and 0 deletions
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11
hmp.c
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@ -783,3 +783,14 @@ void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
qdict_get_int(qdict, "iops_wr"), &err);
hmp_handle_error(mon, &err);
}
void hmp_block_stream(Monitor *mon, const QDict *qdict)
{
Error *error = NULL;
const char *device = qdict_get_str(qdict, "device");
const char *base = qdict_get_try_str(qdict, "base");
qmp_block_stream(device, base != NULL, base, &error);
hmp_handle_error(mon, &error);
}