Ykkrosh
1706363bab
Also delete some unused declarations, and rename is_playing to snd_is_playing. This was SVN commit r7813.
75 lines
2.5 KiB
C
75 lines
2.5 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_NUMA
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#define INCLUDED_NUMA
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//-----------------------------------------------------------------------------
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// node topology
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/**
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* @return number of NUMA "nodes" (i.e. groups of CPUs with local memory).
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**/
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LIB_API size_t numa_NumNodes();
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/**
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* @param processor
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* @return node number (zero-based) to which \<processor\> belongs.
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**/
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LIB_API size_t numa_NodeFromProcessor(size_t processor);
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/**
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* @param node
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* @return bit-mask of all processors constituting \<node\>.
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**/
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LIB_API uintptr_t numa_ProcessorMaskFromNode(size_t node);
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//-----------------------------------------------------------------------------
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// memory
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/**
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* @param node
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* @return bytes of memory available for allocation on \<node\>.
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**/
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LIB_API size_t numa_AvailableMemory(size_t node);
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/**
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* @return the ratio between maximum and minimum times that one processor
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* from each node required to fill a globally allocated array.
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* in other words, this is the maximum slowdown for NUMA-oblivious
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* memory accesses. Microsoft guidelines require it to be <= 3.
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**/
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LIB_API double numa_Factor();
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/**
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* @return an indication of whether memory pages are node-interleaved.
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*
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* note: this requires ACPI access, which may not be available on
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* least-permission accounts. the default is to return false so as
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* not to cause callers to panic and trigger performance warnings.
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**/
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LIB_API bool numa_IsMemoryInterleaved();
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#endif // #ifndef INCLUDED_NUMA
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