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Introduce VIR_NET_STREAM_HOLE message type

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This is a special type of stream packet, that is bidirectional
and contains information regarding how many bytes each side will
be skipping in the stream.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2016-04-04 14:54:46 +02:00
parent 7ddf7cbffd
commit 79d16419c4
4 changed files with 15 additions and 2 deletions
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3
daemon/stream.c
View File

@ -287,7 +287,8 @@ daemonStreamFilter(virNetServerClientPtr client ATTRIBUTE_UNUSED,
virMutexLock(&stream->priv->lock);
if (msg->header.type != VIR_NET_STREAM)
if (msg->header.type != VIR_NET_STREAM &&
msg->header.type != VIR_NET_STREAM_HOLE)
goto cleanup;
if (!virNetServerProgramMatches(stream->prog, msg))

1
src/rpc/virnetclient.c
View File

@ -1284,6 +1284,7 @@ virNetClientCallDispatch(virNetClientPtr client)
return virNetClientCallDispatchMessage(client);
case VIR_NET_STREAM: /* Stream protocol */
case VIR_NET_STREAM_HOLE: /* Sparse stream protocol*/
return virNetClientCallDispatchStream(client);
default:

12
src/rpc/virnetprotocol.x
View File

@ -143,6 +143,14 @@ const VIR_NET_MESSAGE_NUM_FDS_MAX = 32;
* * status == VIR_NET_ERROR
* remote_error Error information
*
* - type == VIR_NET_STREAM_HOLE
* * status == VIR_NET_CONTINUE
* byte[] hole data
* * status == VIR_NET_ERROR
* remote_error error information
* * status == VIR_NET_OK
* <empty>
*
*/
enum virNetMessageType {
/* client -> server. args from a method call */
@ -156,7 +164,9 @@ enum virNetMessageType {
/* client -> server. args from a method call, with passed FDs */
VIR_NET_CALL_WITH_FDS = 4,
/* server -> client. reply/error from a method call, with passed FDs */
VIR_NET_REPLY_WITH_FDS = 5
VIR_NET_REPLY_WITH_FDS = 5,
/* either direction, stream hole data packet */
VIR_NET_STREAM_HOLE = 6
};
enum virNetMessageStatus {

1
src/virnetprotocol-structs
View File

@ -6,6 +6,7 @@ enum virNetMessageType {
VIR_NET_STREAM = 3,
VIR_NET_CALL_WITH_FDS = 4,
VIR_NET_REPLY_WITH_FDS = 5,
VIR_NET_STREAM_HOLE = 6,
};
enum virNetMessageStatus {
VIR_NET_OK = 0,