forked from mirrors/0ad
Ykkrosh
f5a2a141dc
Removed a few global variables from Atlas. Added call to srand(time). Restored NotebookEvent in wxJS. Fixed CPU-detection in Valgrind. This was SVN commit r5318.
76 lines
1.3 KiB
C++
76 lines
1.3 KiB
C++
#include "precompiled.h"
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#include "ucpu.h"
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#if OS_MACOSX
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#include <sys/sysctl.h>
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#endif
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#if OS_LINUX
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#include "valgrind.h"
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#endif
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int ucpu_IsThrottlingPossible()
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{
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return -1; // don't know
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}
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int ucpu_NumPackages()
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{
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#if OS_MACOSX
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int mib[]={CTL_HW, HW_NCPU};
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int ncpus;
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size_t len = sizeof(ncpus);
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if (sysctl(mib, 2, &ncpus, &len, NULL, 0) == -1)
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return -1; // don't know
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else
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return ncpus;
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#else
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long res = sysconf(_SC_NPROCESSORS_CONF);
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if (res == -1)
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return 1;
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else
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return (int)res;
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#endif
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}
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double ucpu_ClockFrequency()
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{
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return -1; // don't know
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}
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#if OS_LINUX
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LibError ucpu_CallByEachCPU(CpuCallback cb, void* param)
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{
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long ncpus = sysconf(_SC_NPROCESSORS_CONF);
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// Valgrind reports the number of real CPUs, but only emulates a single CPU.
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// That causes problems when we expect all those CPUs to be distinct, so
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// just pretend there's only one CPU
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if (RUNNING_ON_VALGRIND)
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ncpus = 1;
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cpu_set_t set;
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for (long i = 0; i < ncpus && i < CPU_SETSIZE; ++i)
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{
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CPU_ZERO(&set);
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CPU_SET(i, &set);
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int ret = sched_setaffinity(0, sizeof(set), &set);
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if (ret)
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WARN_RETURN(ERR::FAIL);
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// (The process gets migrated immediately by the setaffinity call)
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cb(param);
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}
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return INFO::OK;
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}
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#else
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LibError ucpu_CallByEachCPU(CpuCallback cb, void* param)
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{
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// TODO: implement
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return ERR::NOT_IMPLEMENTED;
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}
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#endif
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