root/shell/PosixFile.cpp

DEFINITIONS

1. open
2. close
3. read
4. write
5. getPosition
6. setPosition
7. size
8. isEOF

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is [Open Source Virtual Machine.].
*
* The Initial Developer of the Original Code is
* Adobe System Incorporated.
* Portions created by the Initial Developer are Copyright (C) 2004-2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*   Adobe AS3 Team
*
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* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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#include "PosixFile.h"

namespace avmshell
{
        PosixFile::~PosixFile()
        {
                if(file)
                {
                        fclose(file);
                }
        }

        bool PosixFile::open(const char* filename, File::OpenAttribute flags)
        {
                const char* fileAttributes[] = { "r", "w", "a", "rb", "wb", "ab" };

                file = fopen(filename, fileAttributes[flags] );

                return file != 0;
        }

        void PosixFile::close()
        {
                fclose(file);
                file = 0;
        }

        size_t PosixFile::read(void* buffer, size_t bytesToRead)
        {
                return fread(buffer, 1, bytesToRead, file);
        }

        size_t PosixFile::write(const void* buffer, size_t bytesToWrite)
        {
                return fwrite(buffer, 1, bytesToWrite, file);
        }

        int64_t PosixFile::getPosition() const
        {
                return ftell(file);
        }

        bool PosixFile::setPosition(int64_t pos)
        {
                return fseek(file, pos, SEEK_SET) == 0;
        }

        int64_t PosixFile::size() const 
        {
                fseek(file, 0L, SEEK_END);
                int64_t pos = ftell(file);
                fseek (file, 0L, SEEK_SET);
        
                return pos;
        }
        
        bool PosixFile::isEOF() const
        {
                return feof(file) != 0;
        }
        
}