/**
* gracefully disconnect a sync client handle.
*
* @param[in] state pointer to sync client handle
*
* @return operation status
* @retval SYNC_OK success
*/
afs_int32
SYNC_closeChannel(SYNC_client_state * state)
{
afs_int32 code;
SYNC_command com;
SYNC_response res;
SYNC_PROTO_BUF_DECL(ores);
if (state->fd == -1)
return SYNC_OK;
memset(&com, 0, sizeof(com));
memset(&res, 0, sizeof(res));
res.payload.len = SYNC_PROTO_MAX_LEN;
res.payload.buf = ores;
com.hdr.command = SYNC_COM_CHANNEL_CLOSE;
com.hdr.command_len = sizeof(SYNC_command_hdr);
com.hdr.flags |= SYNC_FLAG_CHANNEL_SHUTDOWN;
/* in case the other end dropped, don't do any retries */
state->retry_limit = 0;
state->hard_timeout = 0;
SYNC_ask(state, &com, &res);
SYNC_disconnect(state);
return SYNC_OK;
}
afs_int32
SALVSYNC_askSalv(SYNC_command * com, SYNC_response * res)
{
afs_int32 code;
SALVSYNC_command_hdr * scom = com->payload.buf;
scom->hdr_version = SALVSYNC_PROTO_VERSION;
VSALVSYNC_LOCK;
code = SYNC_ask(&salvsync_client_state, com, res);
VSALVSYNC_UNLOCK;
switch (code) {
case SYNC_OK:
case SYNC_FAILED:
break;
case SYNC_COM_ERROR:
case SYNC_BAD_COMMAND:
Log("SALVSYNC_askSalv: fatal SALVSYNC protocol error; online salvager functionality disabled until next fileserver restart\n");
break;
case SYNC_DENIED:
Log("SALVSYNC_askSalv: SALVSYNC request denied for reason=%d\n", res->hdr.reason);
break;
default:
Log("SALVSYNC_askSalv: unknown protocol response %d\n", code);
break;
}
return code;
}
/* fsync client interface */
afs_int32
FSYNC_askfs(SYNC_command * com, SYNC_response * res)
{
afs_int32 code;
VFSYNC_LOCK;
code = SYNC_ask(&fssync_state, com, res);
VFSYNC_UNLOCK;
switch (code) {
case SYNC_OK:
case SYNC_FAILED:
break;
case SYNC_COM_ERROR:
case SYNC_BAD_COMMAND:
Log("FSYNC_askfs: internal FSSYNC protocol error %d\n", code);
break;
case SYNC_DENIED:
Log("FSYNC_askfs: FSSYNC request denied for reason=%d\n", res->hdr.reason);
break;
default:
Log("FSYNC_askfs: unknown protocol response %d\n", code);
break;
}
return code;
}
/* fsync client interface */
afs_int32
FSYNC_askfs(SYNC_command * com, SYNC_response * res)
{
afs_int32 code;
VFSYNC_LOCK;
code = SYNC_ask(&fssync_state, com, res);
VFSYNC_UNLOCK;
switch (code) {
case SYNC_OK:
case SYNC_FAILED:
break;
case SYNC_COM_ERROR:
case SYNC_BAD_COMMAND:
Log("FSYNC_askfs: fatal FSSYNC protocol error; volume management functionality disabled until next fileserver restart\n");
break;
case SYNC_DENIED:
Log("FSYNC_askfs: FSSYNC request denied for reason=%d\n", res->hdr.reason);
break;
default:
Log("FSYNC_askfs: unknown protocol response %d\n", code);
break;
}
return code;
}
