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https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 21:34:08 -07:00
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.
84 lines
2.1 KiB
C++
84 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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#ifndef INCLUDED_SHARED_PTR
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#define INCLUDED_SHARED_PTR
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#include "lib/alignment.h"
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#include "lib/sysdep/rtl.h" // rtl_AllocateAligned
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struct DummyDeleter
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{
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template<class T>
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void operator()(T*)
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{
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}
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};
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template<class T>
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inline shared_ptr<T> DummySharedPtr(T* ptr)
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{
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return shared_ptr<T>(ptr, DummyDeleter());
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}
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struct ArrayDeleter
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{
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template<class T>
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void operator()(T* p)
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{
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delete[] p;
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}
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};
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struct FreeDeleter
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{
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template<class T>
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void operator()(T* p)
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{
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free(p);
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}
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};
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// (note: uses CheckedArrayDeleter)
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LIB_API shared_ptr<u8> Allocate(size_t size);
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struct AlignedDeleter
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{
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template<class T>
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void operator()(T* t)
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{
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rtl_FreeAligned(t);
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}
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};
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template<class T>
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static inline LibError AllocateAligned(shared_ptr<T>& p, size_t size, size_t alignment = cacheLineSize)
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{
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void* mem = rtl_AllocateAligned(size, alignment);
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if(!mem)
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WARN_RETURN(ERR::NO_MEM);
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p.reset((T*)mem, AlignedDeleter());
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return INFO::OK;
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}
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#endif // #ifndef INCLUDED_SHARED_PTR
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