95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/*
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SST_CPU_POSIX.c
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Author: Patrick Baggett <ptb1@762studios.com>
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Created: 12/23/2011
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Purpose:
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libsst-os CPU querying functions for POSIX systems
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License:
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This program is free software. It comes without any warranty, to
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the extent permitted by applicable law. You can redistribute it
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and/or modify it under the terms of the Do What The Fuck You Want
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To Public License, Version 2, as published by Sam Hocevar. See
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http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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/*
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The POSIX doesn't actually provide much in the terms of CPU
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querying. Other source files provide specific operating systems
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implementations (e.g: Linux, Solaris, ...)
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*/
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#include "POSIXPrivate.h"
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#include <SST/SST_CPU.h>
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#include <SST/SST_Assert.h>
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/******************************************************************************/
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int SST_OS_GetNumberCPUChips()
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{
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/* 0 -> no information available */
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return 0;
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}
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/******************************************************************************/
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int SST_OS_GetNumberPhysicalCPUs(void)
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{
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/* 0 -> no information available */
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return 0;
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}
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/******************************************************************************/
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int SST_OS_GetNumberLogicalCPUs(void)
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{
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return (int)sysconf(_SC_NPROCESSORS_ONLN);
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}
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/******************************************************************************/
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int SST_OS_MapPhysicalToLogicalCPU(int physCpuId, int* logCpuIds)
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{
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(void)physCpuId;
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(void)logCpuIds;
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/* 0 -> API not available */
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return 0;
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}
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/******************************************************************************/
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int SST_OS_GetCPUAffinity(unsigned char* cpuMaskReturn, unsigned int cpuMaskSize)
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{
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SST_OS_DebugAssert(cpuMaskReturn != NULL, "CPU mask may not be NULL");
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(void)cpuMaskReturn;
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(void)cpuMaskSize;
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return 0; /* NYI */
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}
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/******************************************************************************/
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int SST_OS_SetCPUAffinity(const unsigned char* cpuMask, unsigned int cpuMaskSize)
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{
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SST_OS_DebugAssert(cpuMask != NULL, "CPU mask may not be NULL");
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(void)cpuMask;
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(void)cpuMaskSize;
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return 0; /* NYI */
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}
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/******************************************************************************/
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void SST_OS_SetPreferredCPU(int logCpuId)
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{
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(void)logCpuId;
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/* Hint ignored */
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return;
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}
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