77 lines
2.0 KiB
C++
77 lines
2.0 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 with
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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filesystem.h
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Allows access to stored sequences of bytes in an orderly fashion.
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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 "stream.h"
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#include "fcntl.h"
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namespace Sortix
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{
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class DevFileSystem : public Device
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{
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public:
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virtual Device* Open(const char* path, int flags, mode_t mode) = 0;
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virtual bool Unlink(const char* path) = 0;
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public:
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virtual bool IsType(unsigned type) const { return type == Device::FILESYSTEM; }
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};
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class DevFileWrapper : public DevBuffer
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{
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public:
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DevFileWrapper(DevBuffer* buffer, int flags);
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virtual ~DevFileWrapper();
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private:
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DevBuffer* buffer;
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int flags;
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uintmax_t offset;
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public:
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virtual ssize_t Read(uint8_t* dest, size_t count);
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virtual ssize_t Write(const uint8_t* src, size_t count);
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virtual bool IsReadable();
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virtual bool IsWritable();
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virtual size_t BlockSize();
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virtual uintmax_t Size();
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virtual uintmax_t Position();
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virtual bool Seek(uintmax_t position);
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virtual bool Resize(uintmax_t size);
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};
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namespace FileSystem
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{
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void Init();
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Device* Open(const char* path, int flags, mode_t mode);
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bool Unlink(const char* path);
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}
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}
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#endif
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