Split atomic and mutex implementations and make inlinable.

include/core/SkRefCnt.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkRefCnt_DEFINED
@@ skipping 32 matching lines @@
 
     /** Return the reference count. Use only for debugging. */
     int32_t getRefCnt() const { return fRefCnt; }
 
     /** Returns true if the caller is the only owner.
      *  Ensures that all previous owner's actions are complete.
      */
     bool unique() const {
         bool const unique = (1 == fRefCnt);
         if (unique) {
-            // Aquire barrier (L/SL), if not provided by load of fRefCnt.
+            // Acquire barrier (L/SL), if not provided by load of fRefCnt.
             // Prevents user's 'unique' code from happening before decrements.
             //TODO: issue the barrier.
         }
         return unique;
     }
 
     /** Increment the reference count. Must be balanced by a call to unref().
     */
     void ref() const {
         SkASSERT(fRefCnt > 0);
         sk_atomic_inc(&fRefCnt);  // No barrier required.
     }
 
     /** Decrement the reference count. If the reference count is 1 before the
         decrement, then delete the object. Note that if this is the case, then
         the object needs to have been allocated via new, and not on the stack.
     */
     void unref() const {
         SkASSERT(fRefCnt > 0);
         // Release barrier (SL/S), if not provided below.
         if (sk_atomic_dec(&fRefCnt) == 1) {
-            // Aquire barrier (L/SL), if not provided above.
+            // Acquire barrier (L/SL), if not provided above.
             // Prevents code in dispose from happening before the decrement.
-            sk_membar_aquire__after_atomic_dec();
+            sk_membar_acquire__after_atomic_dec();
             internal_dispose();
         }
     }
 
 #ifdef SK_DEBUG
     void validate() const {
         SkASSERT(fRefCnt > 0);
     }
 #endif
 
@@ skipping 192 matching lines @@
     typedef T* SkRefPtr::*unspecified_bool_type;
     operator unspecified_bool_type() const {
         return fObj ? &SkRefPtr::fObj : NULL;
     }
 
 private:
     T* fObj;
 };
 
 #endif