Introduce postMount() VolumeBase helper. am: 5ec8658abc

Change-Id: Id8ce7dbaabafef41121dbdf9f6169f1377ae1174

model/PrivateVolume.cpp

@@ -177,6 +177,10 @@ status_t PrivateVolume::doMount() {
         return -EIO;
     }
 
+    return OK;
+}
+
+void PrivateVolume::doPostMount() {
     auto vol_manager = VolumeManager::Instance();
     std::string mediaPath(mPath + "/media");
 
@@ -189,8 +193,6 @@ status_t PrivateVolume::doMount() {
         addVolume(vol);
         vol->create();
     }
-
-    return OK;
 }
 
 status_t PrivateVolume::doUnmount() {

model/PrivateVolume.h

@@ -49,6 +49,7 @@ class PrivateVolume : public VolumeBase {
     status_t doCreate() override;
     status_t doDestroy() override;
     status_t doMount() override;
+    void doPostMount() override;
     status_t doUnmount() override;
     status_t doFormat(const std::string& fsType) override;
 

model/VolumeBase.cpp

@@ -232,9 +232,14 @@ status_t VolumeBase::mount() {
     status_t res = doMount();
     setState(res == OK ? State::kMounted : State::kUnmountable);
 
+    if (res == OK) {
+        doPostMount();
+    }
     return res;
 }
 
+void VolumeBase::doPostMount() {}
+
 status_t VolumeBase::unmount() {
     if (mState != State::kMounted) {
         LOG(WARNING) << getId() << " unmount requires state mounted";

model/VolumeBase.h

@@ -120,6 +120,7 @@ class VolumeBase {
     virtual status_t doCreate();
     virtual status_t doDestroy();
     virtual status_t doMount() = 0;
+    virtual void doPostMount();
     virtual status_t doUnmount() = 0;
     virtual status_t doFormat(const std::string& fsType);