commit 5728a92e29c1c9729017a82c5d0bc18fc1069923
author Anu Sundararajan <sanuradha@ti.com> Wed Jun 22 15:58:59 2011 -0500
committer Iliyan Malchev <malchev@google.com> Mon Jun 27 13:48:51 2011 -0700
tree f4f3b360d51155bacd5623286ba2f507b914a3ac
parent 35766cfcc4c9ea07b6ae375ced2b292789382621

MemoryHeapBase: Save and binderize the offset

The offset that is used in the creation of the MemoryHeapBase must be saved, so
that it can be used to recreate the Heap when an IMemory object is passed
across process boundary through the binder.

Change-Id: Ie618fb5c0718e6711f55ed9235616fd801e648dc
Signed-off-by: Anu Sundararajan <sanuradha@ti.com>
Signed-off-by: Iliyan Malchev <malchev@google.com>

include/binder/MemoryHeapBase.h

diff --git a/include/binder/MemoryHeapBase.h b/include/binder/MemoryHeapBase.h
index 2f2e31b..bbbda9c 100644
--- a/include/binder/MemoryHeapBase.h
+++ b/include/binder/MemoryHeapBase.h
@@ -27,7 +27,7 @@
 
 // ---------------------------------------------------------------------------
 
-class MemoryHeapBase : public virtual BnMemoryHeap 
+class MemoryHeapBase : public virtual BnMemoryHeap
 {
 public:
     enum {
@@ -38,12 +38,12 @@
         NO_CACHING = 0x00000200
     };
 
-    /* 
+    /*
      * maps the memory referenced by fd. but DOESN'T take ownership
      * of the filedescriptor (it makes a copy with dup()
      */
     MemoryHeapBase(int fd, size_t size, uint32_t flags = 0, uint32_t offset = 0);
-    
+
     /*
      * maps memory from the given device
      */
@@ -61,9 +61,10 @@
     virtual void*       getBase() const;
     virtual size_t      getSize() const;
     virtual uint32_t    getFlags() const;
+    virtual uint32_t      getOffset() const;
 
     const char*         getDevice() const;
-    
+
     /* this closes this heap -- use carefully */
     void dispose();
 
@@ -74,12 +75,12 @@
             mDevice = device;
         return mDevice ? NO_ERROR : ALREADY_EXISTS;
     }
-    
+
 protected:
             MemoryHeapBase();
     // init() takes ownership of fd
     status_t init(int fd, void *base, int size,
-            int flags = 0, const char* device = NULL);    
+            int flags = 0, const char* device = NULL);
 
 private:
     status_t mapfd(int fd, size_t size, uint32_t offset = 0);
@@ -90,6 +91,7 @@
     uint32_t    mFlags;
     const char* mDevice;
     bool        mNeedUnmap;
+    uint32_t    mOffset;
 };
 
 // ---------------------------------------------------------------------------