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/*
FALCON - The Falcon Programming Language.
FILE: vfs_file.cpp
VSF provider for physical file system on the host system.
-------------------------------------------------------------------
Author: Giancarlo Niccolai
Begin: Fri, 12 Sep 2008 21:47:10 +0200
-------------------------------------------------------------------
(C) Copyright 2008: the FALCON developers (see list in AUTHORS file)
See LICENSE file for licensing details.
*/
#include <falcon/vfs_file.h>
#include <falcon/error.h>
#include <falcon/fstream_sys_unix.h>
#include <falcon/dir_sys_unix.h>
#include <falcon/sys.h>
#include <falcon/autocstring.h>
#include <falcon/streambuffer.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <cstring>
#include <stdio.h>
#include <fcntl.h>
namespace Falcon {
// we don't use filesystem data.
VFSFile::VFSFile():
VFSProvider( "file" ),
m_fsdata(0)
{}
VFSFile::~VFSFile()
{
}
Stream *VFSFile::open( const URI& uri, const OParams &p )
{
int omode = paramsToMode( p );
// todo: do something about share mode
AutoCString cfilename( uri.path() );
errno = 0;
int handle = ::open( cfilename.c_str(), omode );
if ( handle >= 0 )
{
UnixFileSysData *ufd = new UnixFileSysData( handle, 0 );
return new StreamBuffer( new FileStream( ufd ) );
}
return 0;
}
Stream *VFSFile::create( const URI& uri, const CParams &p, bool &bSuccess )
{
int omode = paramsToMode( p );
if ( p.isNoOvr() )
omode |= O_EXCL;
//TODO: something about sharing
AutoCString cfilename( uri.path() );
errno=0;
umask( 0000 );
int handle = ::open( cfilename.c_str(), O_CREAT | omode, p.createMode() );
if ( handle >= 0 ) {
bSuccess = true;
if ( ! p.isNoStream() )
{
UnixFileSysData *ufd = new UnixFileSysData( handle, 0 );
return new StreamBuffer( new FileStream( ufd ) );
}
else
return 0;
}
bSuccess = false;
return 0;
}
DirEntry* VFSFile::openDir( const URI& uri )
{
AutoCString filename( uri.path() );
DIR *dir = ::opendir( filename.c_str() );
if ( dir == 0 ) {
return 0;
}
return new DirEntry_unix( uri.path(), dir );
}
bool VFSFile::readStats( const URI& uri, FileStat &s )
{
return Sys::fal_stats( uri.path(), s );
}
bool VFSFile::writeStats( const URI& uri, const FileStat &s )
{
// TODO: write contents
return false;
}
bool VFSFile::chown( const URI &uri, int uid, int gid )
{
AutoCString filename( uri.path() );
return ::chown( filename.c_str(), uid, gid ) == 0;
}
bool VFSFile::chmod( const URI &uri, int mode )
{
AutoCString filename( uri.path() );
return ::chmod( filename.c_str(), mode ) == 0;
}
bool VFSFile::link( const URI &uri1, const URI &uri2, bool bSymbolic )
{
// TODO
return false;
}
bool VFSFile::unlink( const URI &uri )
{
AutoCString filename( uri.path() );
return ::unlink( filename.c_str() ) == 0;
}
bool VFSFile::move( const URI &suri, const URI &duri )
{
AutoCString filename( suri.path() );
AutoCString dest( duri.path() );
return ::rename( filename.c_str(), dest.c_str() ) == 0;
}
bool VFSFile::mkdir( const URI &uri, uint32 mode )
{
AutoCString filename( uri.path() );
return ::mkdir( filename.c_str(), mode ) == 0;
}
bool VFSFile::rmdir( const URI &uri )
{
AutoCString filename( uri.path() );
return ::rmdir( filename.c_str() ) == 0;
}
int64 VFSFile::getLastFsError()
{
return (int64) errno;
}
Error *VFSFile::getLastError()
{
if( errno != 0 )
{
IoError *e = new IoError( e_io_error );
e->systemError( errno );
return e;
}
return 0;
}
}
/* end of vsf_file.cpp */
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