173 lines
2.9 KiB
C
173 lines
2.9 KiB
C
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// Copyright (C) 2007 Id Software, Inc.
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//
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#ifndef __FILE64_H__
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#define __FILE64_H__
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#include "File.h"
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#ifdef _WIN32
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <io.h>
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#else
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#endif
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/*
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http://www.gnu.org/software/libc/manual/html_node/Low_002dLevel-I_002fO.html#Low_002dLevel-I_002fO
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*/
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class sdFile64 {
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public:
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#ifndef _WIN32
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#ifdef MACOS_X
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typedef int fSize_t;
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#else
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typedef off64_t fSize_t;
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#endif
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#else
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typedef __int64 fSize_t;
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#endif
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sdFile64( void ) {
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fh = -1;
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}
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virtual ~sdFile64( void ) {
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Close();
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}
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bool IsOpen( void ) {
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return ( fh != -1 );
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}
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const char * GetName( void ) const {
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return fileName.c_str();
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}
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fSize_t GetFileSize( void ) const {
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return fileSize;
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}
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bool Open( idStr fileName, fsMode_t mode );
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void Close( void ) {
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if ( fh != -1 ) {
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#ifndef _WIN32
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close( fh );
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#else
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_close( fh );
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#endif
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fh = -1;
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}
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}
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void Seek( fSize_t offset, fsOrigin_t origin ) {
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if ( fh != -1 ) {
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#ifndef _WIN32
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#ifdef MACOS_X
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lseek( fh, offset, origin );
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#else
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lseek64( fh, offset, origin );
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#endif
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#else
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_lseeki64( fh, offset, origin );
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#endif
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}
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}
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void Flush( void ) {
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if ( fh != -1 ) {
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#ifndef _WIN32
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fsync( fh );
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#else
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_commit( fh );
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#endif
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}
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}
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int Write( const void *buffer, int len ) {
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if ( fileMode != FS_WRITE ) {
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return 0;
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}
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if ( fh != -1 ) {
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#ifndef _WIN32
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return write( fh, buffer, len );
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#else
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return _write( fh, buffer, len );
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#endif
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}
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return 0;
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}
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int Read( void *buffer, int len ) {
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if ( fileMode != FS_READ ) {
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return 0;
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}
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if ( fh != -1 ) {
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#ifndef _WIN32
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return read( fh, buffer, len );
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#else
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return _read( fh, buffer, len );
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#endif
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}
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return 0;
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}
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byte ReadByte( void ) {
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byte b;
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if ( !IsOpen() ) {
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return 0;
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}
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#ifndef _WIN32
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read( fh, &b, 1 );
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#else
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_read( fh, &b, 1 );
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#endif
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return b;
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}
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short ReadShort( void ) {
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byte b[2];
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if ( !IsOpen() ) {
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return 0;
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}
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#ifndef _WIN32
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read( fh, &b, 2 );
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#else
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_read( fh, &b, 2 );
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#endif
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return b[0] + ( b[1] << 8 );
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}
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unsigned TimeStamp( void ) {
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if ( !IsOpen() ) {
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return 0;
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}
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#ifndef _WIN32
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struct stat st;
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fstat( fh, &st);
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return st.st_mtime;
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#else
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struct _stat st;
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_fstat( fh, &st );
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return static_cast< unsigned >( st.st_mtime );
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#endif
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}
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private:
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idStr fileName;
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fSize_t fileSize;
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int fh;
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fsMode_t fileMode;
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};
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#endif /* !__FILE64_H__ */
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