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librubberband/src/sysutils.cpp

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2007-11-06 21:41:16 +00:00
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Rubber Band
An audio time-stretching and pitch-shifting library.
Copyright 2007 Chris Cannam.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#include "sysutils.h"
#include <stdio.h>
#include <string.h>
namespace RubberBand {
bool
system_is_multiprocessor()
{
static bool tested = false, mp = false;
if (tested) return mp;
//...
FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
if (!cpuinfo) return false;
int count = 0;
char buf[256];
while (!feof(cpuinfo)) {
fgets(buf, 256, cpuinfo);
if (!strncmp(buf, "processor", 9)) {
++count;
}
if (count > 1) break;
}
fclose(cpuinfo);
return (count > 1);
}
}