Bug 605362, part 4: Notify shmem MemoryReporters from all shmem backends. r=joe

ipc/glue/SharedMemoryBasic_android.cpp

@@ -108,6 +108,7 @@ SharedMemoryBasic::Create(size_t aNbytes)
 
   mShmFd = shmfd;
   mAllocSize = aNbytes;
+  Created(aNbytes);
   return true;
 }
 
@@ -128,6 +129,7 @@ SharedMemoryBasic::Map(size_t nBytes)
   }
 
   mSize = nBytes;
+  Mapped(nBytes);
   return true;
 }
 
@@ -160,6 +162,7 @@ SharedMemoryBasic::Unmap()
   }
   mMemory = nsnull;
   mSize = 0;
+  Unmapped(mSize);
 }
 
 void
@@ -167,6 +170,9 @@ SharedMemoryBasic::Destroy()
 {
   if (mShmFd > 0) {
     close(mShmFd);
+    if (mAllocSize) {
+      Destroyed(mAllocSize);
+    }
   }
 }
 

ipc/glue/SharedMemoryBasic_chromium.h

@@ -71,12 +71,22 @@ public:
   {
   }
 
+  virtual ~SharedMemoryBasic() {
+    if (memory()) {
+      Unmapped(mSize);
+    }
+    if (mAllocSize) {
+      Destroyed(mAllocSize);
+    }
+  }
+
   NS_OVERRIDE
   virtual bool Create(size_t aNbytes)
   {
     bool ok = mSharedMemory.Create("", false, false, aNbytes);
     if (ok) {
       mAllocSize = aNbytes;
+      Created(aNbytes);
     }
     return ok;
   }
@@ -85,8 +95,10 @@ public:
   virtual bool Map(size_t nBytes)
   {
     bool ok = mSharedMemory.Map(nBytes);
-    if (ok)
+    if (ok) {
       mSize = nBytes;
+      Mapped(nBytes);
+    }
     return ok;
   }
 

ipc/glue/SharedMemorySysV.h

@@ -90,11 +90,17 @@ public:
 
   virtual ~SharedMemorySysV()
   {
+    if (memory()) {
+      Unmapped(mSize);
+    }
+    if (mAllocSize) {
+      Destroyed(mAllocSize);
+    }
+
     shmdt(mData);
     mHandle = -1;
     mData = nsnull;
     mSize = 0;
-    
   }
 
   NS_OVERRIDE
@@ -106,11 +112,9 @@ public:
 
     mHandle = id;
     mAllocSize = aNbytes;
+    Created(aNbytes);
 
-    if (!Map(aNbytes))
-      return false;
-
-    return true;
+    return Map(aNbytes);
   }
 
   NS_OVERRIDE
@@ -150,6 +154,7 @@ public:
                       "Segment doesn't have enough space!");
 #endif
 
+    Mapped(nBytes);
     return true;
   }