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libsst-os/SST_CPU_POSIX.c

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