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