janwas
2374caac3e
. completely rewrite waio - use IOCP, add several hardcore optimizations. now outperforms the AS SSD and ATTO benchmarks when writing . refactor file interface - use LIO_READ instead of 'r', allow access to file descriptor. . completely rewrite the IO wrapper. now much more simple, less CPU overhead, adds support for pre-issue/post-completion hooks and preallocation. io::Run defaults to simple synchronous IO; use io::Parameters to get asynchronous. . add alignment.h with constants and Align() function template (more efficient than round_up for compile-time constants) . add UniqueRange - similar to C++0x unique_ptr (emulated for C++03), plus a built-in size. avoids expensive thread-safe reference counting in shared_ptr. cleanup: - move fat_time functions into archive_zip - remove no longer needed io_align and block_cache - reduce dependencies in sysdep/compiler (move parts to code_annotation.h) - move IOCP into separate file (reused by waio) This was SVN commit r9350.
96 lines
2.1 KiB
C++
96 lines
2.1 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* simple POSIX file wrapper.
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*/
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#ifndef INCLUDED_FILE
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#define INCLUDED_FILE
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#include "lib/os_path.h"
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#include "lib/posix/posix_aio.h" // opcode: LIO_READ or LIO_WRITE
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namespace ERR
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{
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const LibError FILE_ACCESS = -110300;
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}
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LIB_API LibError FileOpen(const OsPath& pathname, int opcode, int& fd);
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LIB_API void FileClose(int& fd);
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class File
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{
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public:
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File()
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: pathname(), fd(-1)
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{
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}
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File(const OsPath& pathname, int opcode)
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{
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(void)Open(pathname, opcode);
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}
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~File()
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{
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Close();
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}
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LibError Open(const OsPath& pathname, int opcode)
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{
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RETURN_ERR(FileOpen(pathname, opcode, fd));
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this->pathname = pathname;
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this->opcode = opcode;
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return INFO::OK;
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}
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void Close()
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{
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FileClose(fd);
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}
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const OsPath& Pathname() const
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{
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return pathname;
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}
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int Descriptor() const
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{
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return fd;
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}
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int Opcode() const
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{
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return opcode;
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}
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private:
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OsPath pathname;
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int fd;
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int opcode;
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};
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typedef shared_ptr<File> PFile;
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#endif // #ifndef INCLUDED_FILE
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