[libvirt] [PATCH 03/11] Remote driver client and server for virDomainOpenConsole
Daniel P. Berrange
berrange at redhat.com
Tue Nov 2 17:49:07 UTC 2010
This provides an implementation of the virDomainOpenConsole
API for the remote driver client and server.
* daemon/remote.c: Server side impl
* src/remote/remote_driver.c: Client impl
* src/remote/remote_protocol.x: Wire definition
---
daemon/remote.c | 52 ++++++++++++++++++++++
daemon/remote_dispatch_args.h | 1 +
daemon/remote_dispatch_prototypes.h | 8 +++
daemon/remote_dispatch_table.h | 5 ++
src/remote/remote_driver.c | 82 +++++++++++++++++++++++++++--------
src/remote/remote_protocol.c | 13 ++++++
src/remote/remote_protocol.h | 10 ++++
src/remote/remote_protocol.x | 9 +++-
src/remote_protocol-structs | 5 ++
9 files changed, 165 insertions(+), 20 deletions(-)
diff --git a/daemon/remote.c b/daemon/remote.c
index 886d53d..c3e6c3a 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -6906,6 +6906,58 @@ qemuDispatchMonitorCommand (struct qemud_server *server ATTRIBUTE_UNUSED,
}
+static int
+remoteDispatchDomainOpenConsole(struct qemud_server *server ATTRIBUTE_UNUSED,
+ struct qemud_client *client,
+ virConnectPtr conn,
+ remote_message_header *hdr,
+ remote_error *rerr,
+ remote_domain_open_console_args *args,
+ void *ret ATTRIBUTE_UNUSED)
+{
+ int r;
+ struct qemud_client_stream *stream;
+ virDomainPtr dom;
+
+ CHECK_CONN (client);
+
+ dom = get_nonnull_domain (conn, args->domain);
+ if (dom == NULL) {
+ remoteDispatchConnError(rerr, conn);
+ return -1;
+ }
+
+ stream = remoteCreateClientStream(conn, hdr);
+ if (!stream) {
+ virDomainFree(dom);
+ remoteDispatchOOMError(rerr);
+ return -1;
+ }
+
+ r = virDomainOpenConsole(dom,
+ args->devname ? *args->devname : NULL,
+ stream->st,
+ args->flags);
+ if (r == -1) {
+ virDomainFree(dom);
+ remoteFreeClientStream(client, stream);
+ remoteDispatchConnError(rerr, conn);
+ return -1;
+ }
+
+ if (remoteAddClientStream(client, stream, 1) < 0) {
+ virDomainFree(dom);
+ remoteDispatchConnError(rerr, conn);
+ virStreamAbort(stream->st);
+ remoteFreeClientStream(client, stream);
+ return -1;
+ }
+
+ virDomainFree(dom);
+ return 0;
+}
+
+
/*----- Helpers. -----*/
/* get_nonnull_domain and get_nonnull_network turn an on-wire
diff --git a/daemon/remote_dispatch_args.h b/daemon/remote_dispatch_args.h
index 9583e9c..971af80 100644
--- a/daemon/remote_dispatch_args.h
+++ b/daemon/remote_dispatch_args.h
@@ -169,3 +169,4 @@
remote_domain_get_memory_parameters_args val_remote_domain_get_memory_parameters_args;
remote_domain_set_vcpus_flags_args val_remote_domain_set_vcpus_flags_args;
remote_domain_get_vcpus_flags_args val_remote_domain_get_vcpus_flags_args;
+ remote_domain_open_console_args val_remote_domain_open_console_args;
diff --git a/daemon/remote_dispatch_prototypes.h b/daemon/remote_dispatch_prototypes.h
index 6b35851..15c7ec7 100644
--- a/daemon/remote_dispatch_prototypes.h
+++ b/daemon/remote_dispatch_prototypes.h
@@ -466,6 +466,14 @@ static int remoteDispatchDomainMigrateSetMaxDowntime(
remote_error *err,
remote_domain_migrate_set_max_downtime_args *args,
void *ret);
+static int remoteDispatchDomainOpenConsole(
+ struct qemud_server *server,
+ struct qemud_client *client,
+ virConnectPtr conn,
+ remote_message_header *hdr,
+ remote_error *err,
+ remote_domain_open_console_args *args,
+ void *ret);
static int remoteDispatchDomainPinVcpu(
struct qemud_server *server,
struct qemud_client *client,
diff --git a/daemon/remote_dispatch_table.h b/daemon/remote_dispatch_table.h
index dd2adc7..4cfa1b1 100644
--- a/daemon/remote_dispatch_table.h
+++ b/daemon/remote_dispatch_table.h
@@ -1007,3 +1007,8 @@
.args_filter = (xdrproc_t) xdr_remote_domain_get_vcpus_flags_args,
.ret_filter = (xdrproc_t) xdr_remote_domain_get_vcpus_flags_ret,
},
+{ /* DomainOpenConsole => 201 */
+ .fn = (dispatch_fn) remoteDispatchDomainOpenConsole,
+ .args_filter = (xdrproc_t) xdr_remote_domain_open_console_args,
+ .ret_filter = (xdrproc_t) xdr_void,
+},
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 2ad5ef7..57aec96 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -8158,11 +8158,16 @@ remoteStreamEventTimerUpdate(struct private_stream_data *privst)
if (!privst->cb)
return;
- if (!privst->cbEvents)
- virEventUpdateTimeout(privst->cbTimer, -1);
- else if (privst->incoming &&
- (privst->cbEvents & VIR_STREAM_EVENT_READABLE))
+ VIR_DEBUG("Check timer offset=%d %d", privst->incomingOffset, privst->cbEvents);
+ if ((privst->incomingOffset &&
+ (privst->cbEvents & VIR_STREAM_EVENT_READABLE)) ||
+ (privst->cbEvents & VIR_STREAM_EVENT_WRITABLE)) {
+ VIR_DEBUG0("Enabling event timer");
virEventUpdateTimeout(privst->cbTimer, 0);
+ } else {
+ VIR_DEBUG0("Disabling event timer");
+ virEventUpdateTimeout(privst->cbTimer, -1);
+ }
}
@@ -8428,24 +8433,33 @@ remoteStreamEventTimer(int timer ATTRIBUTE_UNUSED, void *opaque)
virStreamPtr st = opaque;
struct private_data *priv = st->conn->privateData;
struct private_stream_data *privst = st->privateData;
+ int events = 0;
remoteDriverLock(priv);
+
if (privst->cb &&
(privst->cbEvents & VIR_STREAM_EVENT_READABLE) &&
- privst->incomingOffset) {
+ privst->incomingOffset)
+ events |= VIR_STREAM_EVENT_READABLE;
+ if (privst->cb &&
+ (privst->cbEvents & VIR_STREAM_EVENT_WRITABLE))
+ events |= VIR_STREAM_EVENT_WRITABLE;
+ VIR_DEBUG("Got Timer dispatch %d %d offset=%d", events, privst->cbEvents, privst->incomingOffset);
+ if (events) {
virStreamEventCallback cb = privst->cb;
void *cbOpaque = privst->cbOpaque;
virFreeCallback cbFree = privst->cbFree;
privst->cbDispatch = 1;
remoteDriverUnlock(priv);
- (cb)(st, VIR_STREAM_EVENT_READABLE, cbOpaque);
+ (cb)(st, events, cbOpaque);
remoteDriverLock(priv);
privst->cbDispatch = 0;
if (!privst->cb && cbFree)
(cbFree)(cbOpaque);
}
+
remoteDriverUnlock(priv);
}
@@ -8471,12 +8485,6 @@ remoteStreamEventAddCallback(virStreamPtr st,
remoteDriverLock(priv);
- if (events & ~VIR_STREAM_EVENT_READABLE) {
- remoteError(VIR_ERR_INTERNAL_ERROR,
- _("unsupported stream events %d"), events);
- goto cleanup;
- }
-
if (privst->cb) {
remoteError(VIR_ERR_INTERNAL_ERROR,
_("multiple stream callbacks not supported"));
@@ -8498,6 +8506,8 @@ remoteStreamEventAddCallback(virStreamPtr st,
privst->cbFree = ff;
privst->cbEvents = events;
+ remoteStreamEventTimerUpdate(privst);
+
ret = 0;
cleanup:
@@ -8515,12 +8525,6 @@ remoteStreamEventUpdateCallback(virStreamPtr st,
remoteDriverLock(priv);
- if (events & ~VIR_STREAM_EVENT_READABLE) {
- remoteError(VIR_ERR_INTERNAL_ERROR,
- _("unsupported stream events %d"), events);
- goto cleanup;
- }
-
if (!privst->cb) {
remoteError(VIR_ERR_INTERNAL_ERROR,
_("no stream callback registered"));
@@ -9202,6 +9206,46 @@ done:
}
+static int
+remoteDomainOpenConsole(virDomainPtr dom,
+ const char *devname,
+ virStreamPtr st,
+ unsigned int flags)
+{
+ struct private_data *priv = dom->conn->privateData;
+ struct private_stream_data *privst = NULL;
+ int rv = -1;
+ remote_domain_open_console_args args;
+
+ remoteDriverLock(priv);
+
+ if (!(privst = remoteStreamOpen(st, 1, REMOTE_PROC_DOMAIN_OPEN_CONSOLE, priv->counter)))
+ goto done;
+
+ st->driver = &remoteStreamDrv;
+ st->privateData = privst;
+
+ make_nonnull_domain (&args.domain, dom);
+ args.devname = devname ? (char **)&devname : NULL;
+ args.flags = flags;
+
+ if (call(dom->conn, priv, 0, REMOTE_PROC_DOMAIN_OPEN_CONSOLE,
+ (xdrproc_t) xdr_remote_domain_open_console_args, (char *) &args,
+ (xdrproc_t) xdr_void, NULL) == -1) {
+ remoteStreamRelease(st);
+ goto done;
+ }
+
+ rv = 0;
+
+done:
+ remoteDriverUnlock(priv);
+
+ return rv;
+
+}
+
+
/*----------------------------------------------------------------------*/
static int
@@ -10697,7 +10741,7 @@ static virDriver remote_driver = {
remoteQemuDomainMonitorCommand, /* qemuDomainMonitorCommand */
remoteDomainSetMemoryParameters, /* domainSetMemoryParameters */
remoteDomainGetMemoryParameters, /* domainGetMemoryParameters */
- NULL, /* domainOpenConsole */
+ remoteDomainOpenConsole, /* domainOpenConsole */
};
static virNetworkDriver network_driver = {
diff --git a/src/remote/remote_protocol.c b/src/remote/remote_protocol.c
index 38ea050..41f5e7d 100644
--- a/src/remote/remote_protocol.c
+++ b/src/remote/remote_protocol.c
@@ -3709,6 +3709,19 @@ xdr_remote_domain_snapshot_delete_args (XDR *xdrs, remote_domain_snapshot_delete
}
bool_t
+xdr_remote_domain_open_console_args (XDR *xdrs, remote_domain_open_console_args *objp)
+{
+
+ if (!xdr_remote_nonnull_domain (xdrs, &objp->domain))
+ return FALSE;
+ if (!xdr_remote_string (xdrs, &objp->devname))
+ return FALSE;
+ if (!xdr_u_int (xdrs, &objp->flags))
+ return FALSE;
+ return TRUE;
+}
+
+bool_t
xdr_remote_procedure (XDR *xdrs, remote_procedure *objp)
{
diff --git a/src/remote/remote_protocol.h b/src/remote/remote_protocol.h
index d75e76c..8dc89a5 100644
--- a/src/remote/remote_protocol.h
+++ b/src/remote/remote_protocol.h
@@ -2097,6 +2097,13 @@ struct remote_domain_snapshot_delete_args {
int flags;
};
typedef struct remote_domain_snapshot_delete_args remote_domain_snapshot_delete_args;
+
+struct remote_domain_open_console_args {
+ remote_nonnull_domain domain;
+ remote_string devname;
+ u_int flags;
+};
+typedef struct remote_domain_open_console_args remote_domain_open_console_args;
#define REMOTE_PROGRAM 0x20008086
#define REMOTE_PROTOCOL_VERSION 1
@@ -2301,6 +2308,7 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_GET_MEMORY_PARAMETERS = 198,
REMOTE_PROC_DOMAIN_SET_VCPUS_FLAGS = 199,
REMOTE_PROC_DOMAIN_GET_VCPUS_FLAGS = 200,
+ REMOTE_PROC_DOMAIN_OPEN_CONSOLE = 201,
};
typedef enum remote_procedure remote_procedure;
@@ -2670,6 +2678,7 @@ extern bool_t xdr_remote_domain_snapshot_current_args (XDR *, remote_domain_sna
extern bool_t xdr_remote_domain_snapshot_current_ret (XDR *, remote_domain_snapshot_current_ret*);
extern bool_t xdr_remote_domain_revert_to_snapshot_args (XDR *, remote_domain_revert_to_snapshot_args*);
extern bool_t xdr_remote_domain_snapshot_delete_args (XDR *, remote_domain_snapshot_delete_args*);
+extern bool_t xdr_remote_domain_open_console_args (XDR *, remote_domain_open_console_args*);
extern bool_t xdr_remote_procedure (XDR *, remote_procedure*);
extern bool_t xdr_remote_message_type (XDR *, remote_message_type*);
extern bool_t xdr_remote_message_status (XDR *, remote_message_status*);
@@ -3013,6 +3022,7 @@ extern bool_t xdr_remote_domain_snapshot_current_args ();
extern bool_t xdr_remote_domain_snapshot_current_ret ();
extern bool_t xdr_remote_domain_revert_to_snapshot_args ();
extern bool_t xdr_remote_domain_snapshot_delete_args ();
+extern bool_t xdr_remote_domain_open_console_args ();
extern bool_t xdr_remote_procedure ();
extern bool_t xdr_remote_message_type ();
extern bool_t xdr_remote_message_status ();
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index d57e6d0..e84afe5 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -1853,6 +1853,11 @@ struct remote_domain_snapshot_delete_args {
int flags;
};
+struct remote_domain_open_console_args {
+ remote_nonnull_domain domain;
+ remote_string devname;
+ unsigned int flags;
+};
/*----- Protocol. -----*/
@@ -2079,7 +2084,9 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_SET_MEMORY_PARAMETERS = 197,
REMOTE_PROC_DOMAIN_GET_MEMORY_PARAMETERS = 198,
REMOTE_PROC_DOMAIN_SET_VCPUS_FLAGS = 199,
- REMOTE_PROC_DOMAIN_GET_VCPUS_FLAGS = 200
+ REMOTE_PROC_DOMAIN_GET_VCPUS_FLAGS = 200,
+
+ REMOTE_PROC_DOMAIN_OPEN_CONSOLE = 201
/*
* Notice how the entries are grouped in sets of 10 ?
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index d505886..3054bbf 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -1352,6 +1352,11 @@ struct remote_domain_snapshot_delete_args {
remote_nonnull_domain_snapshot snap;
int flags;
};
+struct remote_domain_open_console_args {
+ remote_nonnull_domain domain;
+ remote_string devname;
+ u_int flags;
+};
struct remote_message_header {
u_int prog;
u_int vers;
--
1.7.2.3
More information about the libvir-list
mailing list