Stub out internal driver entry points for job processing

The internal glue layer for the new pubic API

* src/driver.h: Define internal driver API contract
* src/libvirt.c, src/libvirt_public.syms: Wire up public
  API to internal driver API
* src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/opennebula/one_driver.c,
  src/openvz/openvz_driver.c, src/phyp/phyp_driver.c,
  src/qemu/qemu_driver.c, src/remote/remote_driver.c,
  src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
  src/xen/xen_driver.c: Stub new entry point

src/driver.h

@@ -373,6 +373,10 @@ typedef char *
                          unsigned int ncpus,
                          unsigned int flags);
 
+typedef int
+    (*virDrvDomainGetJobInfo)(virDomainPtr domain,
+                              virDomainJobInfoPtr info);
+
 /**
  * _virDriver:
  *
@@ -464,6 +468,7 @@ struct _virDriver {
     virDrvDomainIsPersistent   domainIsPersistent;
     virDrvCPUCompare            cpuCompare;
     virDrvCPUBaseline           cpuBaseline;
+    virDrvDomainGetJobInfo     domainGetJobInfo;
 };
 
 typedef int

src/esx/esx_driver.c

@@ -3404,6 +3404,7 @@ static virDriver esxDriver = {
     esxDomainIsPersistent,           /* domainIsPersistent */
     NULL,                            /* cpuCompare */
     NULL,                            /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 

src/libvirt.c

@@ -11159,3 +11159,51 @@ error:
     virDispatchError(conn);
     return NULL;
 }
+
+
+/**
+ * virDomainGetJobInfo:
+ * @domain: a domain object
+ * @info: pointer to a virDomainJobInfo structure allocated by the user
+ *
+ * Extract information about progress of a background job on a domain.
+ * Will return an error if the domain is not active.
+ *
+ * Returns 0 in case of success and -1 in case of failure.
+ */
+int
+virDomainGetJobInfo(virDomainPtr domain, virDomainJobInfoPtr info)
+{
+    virConnectPtr conn;
+    DEBUG("domain=%p, info=%p", domain, info);
+
+    virResetLastError();
+
+    if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+        virLibDomainError(NULL, VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        virDispatchError(NULL);
+        return (-1);
+    }
+    if (info == NULL) {
+        virLibDomainError(domain, VIR_ERR_INVALID_ARG, __FUNCTION__);
+        goto error;
+    }
+
+    memset(info, 0, sizeof(virDomainJobInfo));
+
+    conn = domain->conn;
+
+    if (conn->driver->domainGetJobInfo) {
+        int ret;
+        ret = conn->driver->domainGetJobInfo (domain, info);
+        if (ret < 0)
+            goto error;
+        return ret;
+    }
+
+    virLibConnError (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(domain->conn);
+    return -1;
+}

src/libvirt_public.syms

@@ -354,6 +354,7 @@ LIBVIRT_0.7.7 {
         virDomainAttachDeviceFlags;
         virDomainDetachDeviceFlags;
         virConnectBaselineCPU;
+        virDomainGetJobInfo;
 } LIBVIRT_0.7.5;
 
 # .... define new API here using predicted next version number ....

src/lxc/lxc_driver.c

@@ -2451,6 +2451,7 @@ static virDriver lxcDriver = {
     lxcDomainIsPersistent,
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 static virStateDriver lxcStateDriver = {

src/opennebula/one_driver.c

@@ -786,6 +786,7 @@ static virDriver oneDriver = {
     NULL, /* domainIsPersistent */
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 static virStateDriver oneStateDriver = {

src/openvz/openvz_driver.c

@@ -1538,6 +1538,7 @@ static virDriver openvzDriver = {
     openvzDomainIsPersistent,
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 int openvzRegister(void) {

src/phyp/phyp_driver.c

@@ -1654,6 +1654,7 @@ virDriver phypDriver = {
     NULL,                       /* domainIsPersistent */
     NULL,                       /* cpuCompare */
     NULL,                       /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 int

src/qemu/qemu_driver.c

@@ -8773,6 +8773,7 @@ static virDriver qemuDriver = {
     qemuDomainIsPersistent,
     qemuCPUCompare, /* cpuCompare */
     qemuCPUBaseline, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 

src/remote/remote_driver.c

@@ -9060,6 +9060,7 @@ static virDriver remote_driver = {
     remoteDomainIsPersistent, /* domainIsPersistent */
     remoteCPUCompare, /* cpuCompare */
     remoteCPUBaseline, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 static virNetworkDriver network_driver = {

src/test/test_driver.c

@@ -5243,6 +5243,7 @@ static virDriver testDriver = {
     testDomainIsPersistent, /* domainIsPersistent */
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 static virNetworkDriver testNetworkDriver = {

src/uml/uml_driver.c

@@ -1920,6 +1920,7 @@ static virDriver umlDriver = {
     umlDomainIsPersistent,
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 

src/vbox/vbox_tmpl.c

@@ -7063,6 +7063,7 @@ virDriver NAME(Driver) = {
     vboxDomainIsPersistent,
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 virNetworkDriver NAME(NetworkDriver) = {

src/xen/xen_driver.c

@@ -1904,6 +1904,7 @@ static virDriver xenUnifiedDriver = {
     xenUnifiedDomainisPersistent,
     NULL, /* cpuCompare */
     NULL, /* cpuBaseline */
+    NULL, /* domainGetJobInfo */
 };
 
 /**