[libvirt] [PATCH v2 03/10] Split qemuDomainAttachDeviceFlags in two

[Tomasz Flendrich]

Previously, qemuDomainAttachDeviceFlags was doing two things:
handling the job and attaching devices. Now the second part is
in a new function.

This change is required to make it possible to test more complex
device attachment situations, like attaching a device to both
config and live at once.

---
 src/qemu/qemu_driver.c | 95 +++++++++++++++++++++++++++++---------------------
 1 file changed, 56 insertions(+), 39 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 0362f0e..5dde81f 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -8066,49 +8066,34 @@ qemuDomainUpdateDeviceConfig(virDomainDefPtr vmdef,
     return 0;
 }
 
-
 static int
-qemuDomainAttachDeviceFlags(virDomainPtr dom,
-                            const char *xml,
-                            unsigned int flags)
+qemuDomainAttachDeviceLiveAndConfig(virConnectPtr conn,
+                                    virDomainObjPtr vm,
+                                    virQEMUDriverPtr driver,
+                                    const char *xml,
+                                    unsigned int flags)
 {
-    virQEMUDriverPtr driver = dom->conn->privateData;
-    virDomainObjPtr vm = NULL;
     virDomainDefPtr vmdef = NULL;
+    virQEMUDriverConfigPtr cfg = NULL;
     virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
     int ret = -1;
+    virCapsPtr caps = NULL;
     unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
                                VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
-    virQEMUDriverConfigPtr cfg = NULL;
-    virCapsPtr caps = NULL;
 
     virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
                   VIR_DOMAIN_AFFECT_CONFIG, -1);
 
-    virNWFilterReadLockFilterUpdates();
-
     cfg = virQEMUDriverGetConfig(driver);
 
     if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
         goto cleanup;
 
-    if (!(vm = qemuDomObjFromDomain(dom)))
-        goto cleanup;
-
-    if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
-        goto cleanup;
-
-    if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
-        goto cleanup;
-
-    if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
-        goto endjob;
-
     dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
                                              caps, driver->xmlopt,
                                              parse_flags);
     if (dev == NULL)
-        goto endjob;
+        goto cleanup;
 
     if (flags & VIR_DOMAIN_AFFECT_CONFIG &&
         flags & VIR_DOMAIN_AFFECT_LIVE) {
@@ -8118,33 +8103,32 @@ qemuDomainAttachDeviceFlags(virDomainPtr dom,
          */
         dev_copy = virDomainDeviceDefCopy(dev, vm->def, caps, driver->xmlopt);
         if (!dev_copy)
-            goto endjob;
+            goto cleanup;
     }
 
     if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
         /* Make a copy for updated domain. */
         vmdef = virDomainObjCopyPersistentDef(vm, caps, driver->xmlopt);
         if (!vmdef)
-            goto endjob;
+            goto cleanup;
 
         if (virDomainDefCompatibleDevice(vmdef, dev,
                                          VIR_DOMAIN_DEVICE_ACTION_ATTACH) < 0)
-            goto endjob;
-
-        if ((ret = qemuDomainAttachDeviceConfig(vmdef, dev, dom->conn, caps,
+            goto cleanup;
+        if ((ret = qemuDomainAttachDeviceConfig(vmdef, dev, conn, caps,
                                                 parse_flags,
                                                 driver->xmlopt)) < 0)
-            goto endjob;
+            goto cleanup;
     }
 
     if (flags & VIR_DOMAIN_AFFECT_LIVE) {
         if (virDomainDefCompatibleDevice(vm->def, dev_copy,
                                          VIR_DOMAIN_DEVICE_ACTION_ATTACH) < 0)
-            goto endjob;
+            goto cleanup;
 
-        if ((ret = qemuDomainAttachDeviceLive(vm, dev_copy, dom->conn,
-                                              dom->conn->privateData)) < 0)
-            goto endjob;
+        if ((ret = qemuDomainAttachDeviceLive(vm, dev_copy, conn,
+                                              driver)) < 0)
+            goto cleanup;
         /*
          * update domain status forcibly because the domain status may be
          * changed even if we failed to attach the device. For example,
@@ -8152,7 +8136,7 @@ qemuDomainAttachDeviceFlags(virDomainPtr dom,
          */
         if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0) {
             ret = -1;
-            goto endjob;
+            goto cleanup;
         }
     }
 
@@ -8165,17 +8149,50 @@ qemuDomainAttachDeviceFlags(virDomainPtr dom,
         }
     }
 
- endjob:
-    qemuDomainObjEndJob(driver, vm);
-
  cleanup:
     virDomainDefFree(vmdef);
     if (dev != dev_copy)
         virDomainDeviceDefFree(dev_copy);
     virDomainDeviceDefFree(dev);
-    virDomainObjEndAPI(&vm);
-    virObjectUnref(caps);
     virObjectUnref(cfg);
+    virObjectUnref(caps);
+
+    return ret;
+}
+
+static int
+qemuDomainAttachDeviceFlags(virDomainPtr dom,
+                            const char *xml,
+                            unsigned int flags)
+{
+    virQEMUDriverPtr driver = dom->conn->privateData;
+    virDomainObjPtr vm = NULL;
+    int ret = -1;
+
+    virNWFilterReadLockFilterUpdates();
+
+    if (!(vm = qemuDomObjFromDomain(dom)))
+        goto cleanup;
+
+    if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
+        goto cleanup;
+
+    if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
+        goto cleanup;
+
+    if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
+        goto endjob;
+
+    if (qemuDomainAttachDeviceLiveAndConfig(dom->conn, vm, driver, xml, flags) < 0)
+        goto endjob;
+
+    ret = 0;
+
+ endjob:
+    qemuDomainObjEndJob(driver, vm);
+
+ cleanup:
+    virDomainObjEndAPI(&vm);
     virNWFilterUnlockFilterUpdates();
     return ret;
 }
-- 
2.7.4