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forked from 0ad/0ad
0ad/source/lib/file/common/real_directory.cpp
janwas 2374caac3e major refactor of file/io and alignment code. requires update-workspaces
. 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.
2011-04-29 19:10:34 +00:00

73 lines
2.2 KiB
C++

/* Copyright (c) 2010 Wildfire Games
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "precompiled.h"
#include "lib/file/common/real_directory.h"
#include "lib/sysdep/filesystem.h"
#include "lib/file/file.h"
#include "lib/file/io/io.h"
RealDirectory::RealDirectory(const OsPath& path, size_t priority, size_t flags)
: m_path(path), m_priority(priority), m_flags(flags)
{
}
/*virtual*/ size_t RealDirectory::Precedence() const
{
return 1u;
}
/*virtual*/ wchar_t RealDirectory::LocationCode() const
{
return 'F';
}
/*virtual*/ LibError RealDirectory::Load(const OsPath& name, const shared_ptr<u8>& buf, size_t size) const
{
return io::Load(m_path / name, buf.get(), size);
}
LibError RealDirectory::Store(const OsPath& name, const shared_ptr<u8>& fileContents, size_t size)
{
return io::Store(m_path / name, fileContents.get(), size);
}
void RealDirectory::Watch()
{
if(!m_watch)
(void)dir_watch_Add(m_path, m_watch);
}
PRealDirectory CreateRealSubdirectory(const PRealDirectory& realDirectory, const OsPath& subdirectoryName)
{
const OsPath path = realDirectory->Path() / subdirectoryName/"";
return PRealDirectory(new RealDirectory(path, realDirectory->Priority(), realDirectory->Flags()));
}