99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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filesystem.h
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Abstracts away a file system device.
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******************************************************************************/
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#ifndef SORTIX_FILESYSTEM_H
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#define SORTIX_FILESYSTEM_H
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#include "device.h"
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#include "mount.h"
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namespace Sortix
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{
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class Thread;
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namespace FileSystem
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{
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struct SysCallback
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{
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Device* device;
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union { int deviceError; nat deviceType; }
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}
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}
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// TODO: These belong in libmaxsi!
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const nat O_RDONLY = 1;
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const nat O_WRONLY = 2;
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const nat O_RDWR = 3;
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const nat O_EXEC = 4;
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const nat O_SEARCH = 5;
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const nat O_LOWERFLAGS = 0x7;
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// TODO: Sortix might never support all of these flags if they are stupid.
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const nat O_APPEND = (1<<3);
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const nat O_CLOEXEC = (1<<4);
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const nat O_CREAT = (1<<5);
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const nat O_DIRECTORY = (1<<6);
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const nat O_DSYNC = (1<<6);
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const nat O_EXCL = (1<<7);
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const nat O_NOCTTY = (1<<8);
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const nat O_NOFOLLOW = (1<<9);
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const nat O_RSYNC = (1<<11);
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const nat O_SYNC = (1<<12);
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const nat O_TRUNC = (1<<13);
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const nat O_TTY_INIT = (1<<13);
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// If O_RDONLY, then no one is allowed to write to this, or if O_RDWD then
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// no one else is allowed to use this besides me.
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const nat O_EXCLUSIVELY = (1<<14);
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const nat O_USERSPACEABLE = ((1<<15)-1);
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const nat O_MOUNT = (1<<31);
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class DevFileSystem : public Device
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{
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public:
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DevFileSystem() { };
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virtual ~DevFileSystem() { }
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public:
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bool LegalNodeName(const char* name);
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public:
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virtual int Initialize(MountPoint* mountPoint, const char* commandLine) = 0;
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public:
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virtual bool Open(const char* path, nat openFlags, nat mode, FileSystem::SysCallback* callbackInfo, Thread* thread);
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};
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namespace FileSystem
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{
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DevFileSystem* CreateDriver(const char* fsType);
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}
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}
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#endif
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