194 lines
3.6 KiB
C++
194 lines
3.6 KiB
C++
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rubber Band
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An audio time-stretching and pitch-shifting library.
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Copyright 2007-2011 Chris Cannam.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "sysutils.h"
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#ifdef _WIN32
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#include <windows.h>
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#include <fcntl.h>
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#include <io.h>
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#else /* !_WIN32 */
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#include <signal.h>
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#include <unistd.h>
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#ifdef __APPLE__
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#include <sys/sysctl.h>
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#else /* !__APPLE__, !_WIN32 */
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#include <stdio.h>
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#include <string.h>
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#endif /* !__APPLE__, !_WIN32 */
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#endif /* !_WIN32 */
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#ifdef __sun
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#include <sys/processor.h>
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#endif
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#include <cstdlib>
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#include <iostream>
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#ifdef _WIN32
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#include <fstream>
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#endif
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namespace RubberBand {
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const char *
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system_get_platform_tag()
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{
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#ifdef _WIN32
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return "win32";
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#else /* !_WIN32 */
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#ifdef __APPLE__
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return "osx";
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#else /* !__APPLE__ */
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#ifdef __LINUX__
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if (sizeof(long) == 8) {
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return "linux64";
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} else {
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return "linux";
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}
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#else /* !__LINUX__ */
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return "posix";
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#endif /* !__LINUX__ */
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#endif /* !__APPLE__ */
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#endif /* !_WIN32 */
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}
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bool
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system_is_multiprocessor()
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{
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static bool tested = false, mp = false;
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if (tested) return mp;
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int count = 0;
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#ifdef _WIN32
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SYSTEM_INFO sysinfo;
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GetSystemInfo(&sysinfo);
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count = sysinfo.dwNumberOfProcessors;
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#else /* !_WIN32 */
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#ifdef __APPLE__
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size_t sz = sizeof(count);
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if (sysctlbyname("hw.ncpu", &count, &sz, NULL, 0)) {
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count = 0;
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mp = false;
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} else {
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mp = (count > 1);
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}
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#else /* !__APPLE__, !_WIN32 */
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#ifdef __sun
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processorid_t i, n;
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n = sysconf(_SC_CPUID_MAX);
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for (i = 0; i <= n; ++i) {
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int status = p_online(i, P_STATUS);
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if (status == P_ONLINE) {
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++count;
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}
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if (count > 1) break;
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}
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#else /* !__sun, !__APPLE__, !_WIN32 */
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//...
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FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
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if (!cpuinfo) return false;
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char buf[256];
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while (!feof(cpuinfo)) {
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if (!fgets(buf, 256, cpuinfo)) break;
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if (!strncmp(buf, "processor", 9)) {
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++count;
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}
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if (count > 1) break;
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}
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fclose(cpuinfo);
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#endif /* !__sun, !__APPLE__, !_WIN32 */
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#endif /* !__APPLE__, !_WIN32 */
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#endif /* !_WIN32 */
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mp = (count > 1);
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tested = true;
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return mp;
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}
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#ifdef _WIN32
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void gettimeofday(struct timeval *tv, void *tz)
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{
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union {
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long long ns100;
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FILETIME ft;
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} now;
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::GetSystemTimeAsFileTime(&now.ft);
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tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL);
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tv->tv_sec = (long)((now.ns100 - 116444736000000000LL) / 10000000LL);
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}
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void usleep(unsigned long usec)
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{
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::Sleep(usec == 0 ? 0 : usec < 1000 ? 1 : usec / 1000);
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}
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#endif
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void system_specific_initialise()
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{
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}
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void system_specific_application_initialise()
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{
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}
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ProcessStatus
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GetProcessStatus(int pid)
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{
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#ifdef _WIN32
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HANDLE handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
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if (!handle) {
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return ProcessNotRunning;
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} else {
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CloseHandle(handle);
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return ProcessRunning;
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}
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#else
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if (kill(getpid(), 0) == 0) {
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if (kill(pid, 0) == 0) {
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return ProcessRunning;
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} else {
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return ProcessNotRunning;
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}
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} else {
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return UnknownProcessStatus;
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}
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#endif
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}
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}
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