JavaScriptCore-903.tar.gz

[apple/javascriptcore.git] / wtf / symbian / BlockAllocatorSymbian.h

diff --git a/wtf/symbian/BlockAllocatorSymbian.h b/wtf/symbian/BlockAllocatorSymbian.h
deleted file mode 100644 (file)
index 21422f6..0000000
--- a/wtf/symbian/BlockAllocatorSymbian.h
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@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer. 
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef BlockAllocatorSymbian_h
-#define BlockAllocatorSymbian_h
-
-#include <e32cmn.h>
-#include <e32std.h>
-#include <hal.h>
-
-
-#define SYMBIAN_PAGESIZE(x) (HAL::Get(HALData::EMemoryPageSize, x));
-#define SYMBIAN_FREERAM(x)  (HAL::Get(HALData::EMemoryRAMFree, x));
-#define SYMBIAN_ROUNDUPTOMULTIPLE(x, multipleof)    ( (x + multipleof - 1) & ~(multipleof - 1) )
-
-// Set sane defaults if -D<flagname=value> wasn't provided via compiler args
-#ifndef JSCCOLLECTOR_VIRTUALMEM_RESERVATION
-#if defined(__WINS__) 
-    // Emulator has limited virtual address space
-    #define JSCCOLLECTOR_VIRTUALMEM_RESERVATION (4*1024*1024)
-#else
-    // HW has plenty of virtual addresses
-    #define JSCCOLLECTOR_VIRTUALMEM_RESERVATION (128*1024*1024)
-#endif
-#endif
-
-namespace WTF {
-
-/** 
- *  Allocates contiguous region of size blockSize with blockSize-aligned address. 
- *  blockSize must be a multiple of system page size (typically 4K on Symbian/ARM)
- *
- *  @param reservationSize Virtual address range to be reserved upon creation of chunk (bytes).
- *  @param blockSize Size of a single allocation. Returned address will also be blockSize-aligned.
- */
-class AlignedBlockAllocator {
-    public:
-        AlignedBlockAllocator(TUint32 reservationSize, TUint32 blockSize);
-        ~AlignedBlockAllocator();
-        void destroy();
-        void* alloc();
-        void free(void* data);
-    
-    private: 
-        RChunk   m_chunk; // Symbian chunk that lets us reserve/commit/decommit
-        TUint    m_offset; // offset of first committed region from base 
-        TInt     m_pageSize; // cached value of system page size, typically 4K on Symbian
-        TUint32  m_reservation;
-        TUint32  m_blockSize;  
-
-        // Tracks comitted/decommitted state of a blockSize region
-        struct {
-            
-            TUint32 *bits; // array of bit flags 
-            TUint32  numBits; // number of regions to keep track of
-            
-            bool get(TUint32 n) const
-            {
-                return !!(bits[n >> 5] & (1 << (n & 0x1F)));
-            }
-            
-            void set(TUint32 n)
-            {
-                bits[n >> 5] |= (1 << (n & 0x1F));
-            }
-            
-            void clear(TUint32 n)
-            {
-                bits[n >> 5] &= ~(1 << (n & 0x1F));
-            }
-            
-            void clearAll()
-            {
-               for (TUint32 i = 0; i < numBits; i++)
-                    clear(i);
-            }
-            
-            TInt findFree() const
-            {
-                for (TUint32 i = 0; i < numBits; i++) {
-                    if (!get(i)) 
-                        return i;
-                }
-                return -1;
-            }
-            
-        } m_map;  
-
-};
- 
-}
-
-#endif // end of BlockAllocatorSymbian_h
-
-