[ovs-dev] [PATCH v2 3/6] datapath-windows: Calling OvsAddPidInstance and OvsDelPidInstance

[Ankur Sharma]

Signed-off-by: Ankur Sharma <ankursharma at vmware.com>
---
 datapath-windows/ovsext/User.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/datapath-windows/ovsext/User.c b/datapath-windows/ovsext/User.c
index 36787cd..6327959 100644
--- a/datapath-windows/ovsext/User.c
+++ b/datapath-windows/ovsext/User.c
@@ -136,9 +136,22 @@ OvsSubscribeDpIoctl(PVOID instanceP,
     POVS_USER_PACKET_QUEUE queue;
     POVS_OPEN_INSTANCE instance = (POVS_OPEN_INSTANCE)instanceP;
 
+    OvsAcquireCtrlLock();
+    if (!gOvsSwitchContext) {
+        OvsReleaseCtrlLock();
+        return STATUS_INVALID_PARAMETER;
+    }
+    OvsReleaseCtrlLock();
+
     if (instance->packetQueue && !join) {
         /* unsubscribe */
         OvsCleanupPacketQueue(instance);
+
+        OvsAcquireCtrlLock();
+        /* Remove the instance from pidHashArray */
+        OvsDelPidInstance(gOvsSwitchContext, pid);
+        OvsReleaseCtrlLock();
+
     } else if (instance->packetQueue == NULL && join) {
         queue = (POVS_USER_PACKET_QUEUE) OvsAllocateMemory(sizeof *queue);
         if (queue == NULL) {
@@ -154,10 +167,17 @@ OvsSubscribeDpIoctl(PVOID instanceP,
         queue->instance = instance;
         instance->packetQueue = queue;
         NdisReleaseSpinLock(&queue->queueLock);
+
+        OvsAcquireCtrlLock();
+        /* Insert the instance to pidHashArray */
+        OvsAddPidInstance(gOvsSwitchContext, pid, instance);
+        OvsReleaseCtrlLock();
+
     } else {
         /* user mode should call only once for subscribe */
         return STATUS_INVALID_PARAMETER;
     }
+
     return STATUS_SUCCESS;
 }
 
-- 
1.9.1