[libvirt] [PATCH v2 1/2] Separate out StateAutoStart from StateInitialize

[John Ferlan]

Separation allows for dependent drivers to be make a connection during
the AutoStart phase of state initialization.
---
 src/driver.h  |  4 ++++
 src/libvirt.c | 14 +++++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/driver.h b/src/driver.h
index cc03e9f..be64333 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -1800,6 +1800,9 @@ typedef int
                          virStateInhibitCallback callback,
                          void *opaque);
 
+typedef void
+(*virDrvStateAutoStart)(void);
+
 typedef int
 (*virDrvStateCleanup)(void);
 
@@ -1815,6 +1818,7 @@ typedef virStateDriver *virStateDriverPtr;
 struct _virStateDriver {
     const char *name;
     virDrvStateInitialize stateInitialize;
+    virDrvStateAutoStart stateAutoStart;
     virDrvStateCleanup stateCleanup;
     virDrvStateReload stateReload;
     virDrvStateStop stateStop;
diff --git a/src/libvirt.c b/src/libvirt.c
index 444c1c3..8157488 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -808,7 +808,11 @@ virRegisterStateDriver(virStateDriverPtr driver)
  * @callback: callback to invoke to inhibit shutdown of the daemon
  * @opaque: data to pass to @callback
  *
- * Initialize all virtualization drivers.
+ * Initialize all virtualization drivers. Accomplished in two phases,
+ * the first being state and structure initialization followed by any
+ * auto start supported by the driver.  This is done to ensure dependencies
+ * that some drivers may have on another driver having been initialized
+ * will exist, such as the storage driver's need to use the secret driver.
  *
  * Returns 0 if all succeed, -1 upon any failure.
  */
@@ -836,6 +840,14 @@ int virStateInitialize(bool privileged,
             }
         }
     }
+
+    for (i = 0; i < virStateDriverTabCount; i++) {
+        if (virStateDriverTab[i]->stateAutoStart) {
+            VIR_DEBUG("Running global auto start for %s state driver",
+                      virStateDriverTab[i]->name);
+            virStateDriverTab[i]->stateAutoStart();
+        }
+    }
     return 0;
 }
 
-- 
1.8.1.4