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sortix--sortix/sortix/mount.cpp
2011-11-20 17:07:34 +01:00

75 lines
1.9 KiB
C++

/******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along
with Sortix. If not, see <http://www.gnu.org/licenses/>.
mount.cpp
Handles system wide mount points and initialization of new file systems.
******************************************************************************/
#include "platform.h"
#include <libmaxsi/memory.h>
#include <libmaxsi/string.h>
#include "panic.h"
#include "mount.h"
#include "fs/ramfs.h"
#include "fs/initfs.h"
using namespace Maxsi;
namespace Sortix
{
namespace Mount
{
DevFileSystem* initfs;
DevFileSystem* rootfs;
bool MatchesMountPath(const char* path, const char* mount)
{
size_t mountlen = String::Length(mount);
if ( !String::StartsWith(path, mount) ) { return false; }
switch ( path[mountlen] )
{
case '\0':
case '/':
return true;
default:
return false;
}
}
DevFileSystem* WhichFileSystem(const char* path, size_t* pathoffset)
{
if ( MatchesMountPath(path, "/bin") )
{
*pathoffset = 4;
return initfs;
}
*pathoffset = 0;
return rootfs;
}
void Init()
{
initfs = new DevInitFS();
if ( !initfs ) { Panic("Unable to allocate initfs"); }
rootfs = new DevRAMFS();
if ( !rootfs ) { Panic("Unable to allocate rootfs"); }
}
}
}