mediaresourcemanager: handle the case when there's no client holding resource with the same type

Bug: 21171205
Change-Id: Id4aa6ccc7ee7daba25fd295399235c5b463ccd83

1 files changed, 8 insertions, 0 deletions

diff --git a/services/mediaresourcemanager/ResourceManagerService.h b/services/mediaresourcemanager/ResourceManagerService.h
index 0d9d878..ca218fc 100644
--- a/services/mediaresourcemanager/ResourceManagerService.h
+++ b/services/mediaresourcemanager/ResourceManagerService.h
@@ -65,6 +65,9 @@ public:
 
     virtual void removeResource(int64_t clientId);
 
+    // Tries to reclaim resource from processes with lower priority than the calling process
+    // according to the requested resources.
+    // Returns true if any resource has been reclaimed, otherwise returns false.
     virtual bool reclaimResource(int callingPid, const Vector<MediaResource> &resources);
 
 protected:
@@ -95,6 +98,11 @@ private:
 
     bool isCallingPriorityHigher_l(int callingPid, int pid);
 
+    // A helper function basically calls getLowestPriorityBiggestClient_l and add the result client
+    // to the given Vector.
+    void getClientForResource_l(
+        int callingPid, const MediaResource *res, Vector<sp<IResourceManagerClient>> *clients);
+
     mutable Mutex mLock;
     sp<ProcessInfoInterface> mProcessInfo;
     sp<ServiceLog> mServiceLog;