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Automatically determine the number of threads on linux

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Signed-off-by: Lauri Kasanen <curaga@operamail.com>
This commit is contained in:
Lauri Kasanen 2012-03-03 12:44:50 +02:00 committed by Rudolf Polzer
parent f02a56a694
commit 053ca4041b
1 changed files with 14 additions and 5 deletions
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19
tools/quake3/common/threads.c
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@ -426,17 +426,26 @@ void RunThreadsOn (int workcnt, qboolean showpacifier, void(*func)(int))
#if defined(__linux__) || (defined(__APPLE__) && !MAC_STATIC_HACK)
#define USED
int numthreads = 4;
#include <unistd.h>
int numthreads = -1;
void ThreadSetDefault (void)
{
if (numthreads == -1) // not set manually
{
/* default to one thread, only multi-thread when specifically told to */
numthreads = 1;
#ifdef _SC_NPROCESSORS_CONF
long cpus = sysconf(_SC_NPROCESSORS_CONF);
if (cpus > 0)
numthreads = cpus;
else
#endif
/* can't detect, so default to four threads */
numthreads = 4;
}
if(numthreads > 1)
Sys_Printf("threads: %d\n", numthreads);
if(numthreads > 1)
Sys_Printf("threads: %d\n", numthreads);
}
#include <pthread.h>