提交 afdf014f 编写于 作者: J Jiri Denemark

Introduce virConnectIsAlive API

This API can be used to check if the socket associated with
virConnectPtr is still open or it was closed (probably because keepalive
protocol timed out). If there the connection is local (i.e., no socket
is associated with the connection, it is trivially always alive.
上级 2fb13628
...@@ -2655,6 +2655,7 @@ int virInterfaceIsActive(virInterfacePtr iface); ...@@ -2655,6 +2655,7 @@ int virInterfaceIsActive(virInterfacePtr iface);
int virConnectIsEncrypted(virConnectPtr conn); int virConnectIsEncrypted(virConnectPtr conn);
int virConnectIsSecure(virConnectPtr conn); int virConnectIsSecure(virConnectPtr conn);
int virConnectIsAlive(virConnectPtr conn);
/* /*
* CPU specification API * CPU specification API
......
...@@ -508,6 +508,8 @@ typedef int ...@@ -508,6 +508,8 @@ typedef int
(*virDrvConnectIsEncrypted)(virConnectPtr conn); (*virDrvConnectIsEncrypted)(virConnectPtr conn);
typedef int typedef int
(*virDrvConnectIsSecure)(virConnectPtr conn); (*virDrvConnectIsSecure)(virConnectPtr conn);
typedef int
(*virDrvConnectIsAlive)(virConnectPtr conn);
typedef int typedef int
(*virDrvDomainIsActive)(virDomainPtr dom); (*virDrvDomainIsActive)(virDomainPtr dom);
typedef int typedef int
...@@ -904,6 +906,7 @@ struct _virDriver { ...@@ -904,6 +906,7 @@ struct _virDriver {
virDrvDomainBlockJobSetSpeed domainBlockJobSetSpeed; virDrvDomainBlockJobSetSpeed domainBlockJobSetSpeed;
virDrvDomainBlockPull domainBlockPull; virDrvDomainBlockPull domainBlockPull;
virDrvSetKeepAlive setKeepAlive; virDrvSetKeepAlive setKeepAlive;
virDrvConnectIsAlive isAlive;
}; };
typedef int typedef int
......
...@@ -17246,3 +17246,39 @@ error: ...@@ -17246,3 +17246,39 @@ error:
virDispatchError(conn); virDispatchError(conn);
return -1; return -1;
} }
/**
* virConnectIsAlive:
* @conn: pointer to the connection object
*
* Determine if the connection to the hypervisor is still alive
*
* A connection will be classed as alive if it is either local, or running
* over a channel (TCP or UNIX socket) which is not closed.
*
* Returns 1 if alive, 0 if dead, -1 on error
*/
int virConnectIsAlive(virConnectPtr conn)
{
VIR_DEBUG("conn=%p", conn);
virResetLastError();
if (!VIR_IS_CONNECT(conn)) {
virLibConnError(VIR_ERR_INVALID_CONN, __FUNCTION__);
virDispatchError(NULL);
return -1;
}
if (conn->driver->isAlive) {
int ret;
ret = conn->driver->isAlive(conn);
if (ret < 0)
goto error;
return ret;
}
virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
error:
virDispatchError(conn);
return -1;
}
...@@ -500,6 +500,7 @@ LIBVIRT_0.9.7 { ...@@ -500,6 +500,7 @@ LIBVIRT_0.9.7 {
LIBVIRT_0.9.8 { LIBVIRT_0.9.8 {
global: global:
virConnectIsAlive;
virConnectSetKeepAlive; virConnectSetKeepAlive;
} LIBVIRT_0.9.7; } LIBVIRT_0.9.7;
......
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