kc3-lang/angle/src/compiler/MMap.h

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• Hash : acc51130
  Author :
  Date : 2010-03-17T13:12:17
  

  mv Compiler/* -> src/compiler/*
  Trac #11406
  Signed-off-by: Nicolas Capens
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@37 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/compiler/MMap.h

• //
  // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #ifndef _MMAP_INCLUDED_
  #define _MMAP_INCLUDED_
  
  //
  // Encapsulate memory mapped files
  //
  
  class TMMap {
  public:
      TMMap(const char* fileName) : 
          fSize(-1), // -1 is the error value returned by GetFileSize()
          fp(NULL),
          fBuff(0)   // 0 is the error value returned by MapViewOfFile()
      {
          if ((fp = fopen(fileName, "r")) == NULL)
              return;
          char c = getc(fp);
          fSize = 0;
          while (c != EOF) {
              fSize++;
              c = getc(fp);
          }
          if (c == EOF)
              fSize++;
          rewind(fp);
          fBuff = (char*)malloc(sizeof(char) * fSize);
          int count = 0;
          c = getc(fp);
          while (c != EOF) {
              fBuff[count++] = c;
              c = getc(fp);
          }
          fBuff[count++] = c;
      }
  
      char* getData() { return fBuff; }
      int   getSize() { return fSize; }
  
      ~TMMap() {
          if (fp != NULL)
              fclose(fp);
      }
      
  private:
      int             fSize;      // size of file to map in
      FILE *fp;
      char*           fBuff;      // the actual data;
  };
  
  #endif // _MMAP_INCLUDED_
  

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