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      1 //===- raw_mem_ostream.h --------------------------------------------------===//
      2 //
      3 //                     The MCLinker Project
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 #ifndef MCLD_RAW_MEMORY_AREA_OSTREAM_H
     10 #define MCLD_RAW_MEMORY_AREA_OSTREAM_H
     11 #ifdef ENABLE_UNITTEST
     12 #include <gtest.h>
     13 #endif
     14 #include <string>
     15 
     16 #include <llvm/Support/raw_ostream.h>
     17 
     18 namespace mcld {
     19 
     20 class MemoryArea;
     21 
     22 class raw_mem_ostream : public llvm::raw_ostream
     23 {
     24 public:
     25   /// constructor - pMemoryArea must be writable.
     26   explicit raw_mem_ostream(MemoryArea &pMemoryArea);
     27 
     28   ~raw_mem_ostream();
     29 
     30   MemoryArea& getMemoryArea() {
     31     flush();
     32     return m_MemoryArea;
     33   }
     34 
     35 private:
     36   /// write_impl - See raw_ostream::write_impl.
     37   virtual void write_impl(const char *pPtr, size_t pSize);
     38 
     39   /// current_pos - Return the current position within the stream, not
     40   /// counting the bytes currently in the buffer.
     41   virtual uint64_t current_pos() const;
     42 
     43 private:
     44   MemoryArea& m_MemoryArea;
     45   uint64_t m_Position;
     46 };
     47 
     48 } // namespace of mcld
     49 
     50 #endif
     51 
     52