Chris@49: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@52:     Sonic Visualiser
Chris@52:     An audio file viewer and annotation editor.
Chris@52:     Centre for Digital Music, Queen Mary, University of London.
Chris@52:     This file copyright 2006 Chris Cannam.
Chris@0:     
Chris@52:     This program is free software; you can redistribute it and/or
Chris@52:     modify it under the terms of the GNU General Public License as
Chris@52:     published by the Free Software Foundation; either version 2 of the
Chris@52:     License, or (at your option) any later version.  See the file
Chris@52:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #include "System.h"
Chris@0: 
Chris@98: #ifndef _WIN32
Chris@101: #include <signal.h>
Chris@98: #endif
Chris@98: 
Chris@98: #include <iostream>
Chris@98: 
Chris@0: #ifdef _WIN32
Chris@0: 
Chris@0: extern "C" {
Chris@0: 
Chris@103: void usleep(unsigned long usec)
Chris@103: {
Chris@105:     ::Sleep(usec / 1000);
Chris@103: }
Chris@103: 
Chris@0: void gettimeofday(struct timeval *tv, void *tz)
Chris@0: {
Chris@0:     union { 
Chris@0: 	long long ns100;  
Chris@0: 	FILETIME ft; 
Chris@0:     } now; 
Chris@0:     
Chris@105:     ::GetSystemTimeAsFileTime(&now.ft); 
Chris@0:     tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL); 
Chris@0:     tv->tv_sec = (long)((now.ns100 - 116444736000000000LL) / 10000000LL); 
Chris@0: }
Chris@0: 
Chris@0: }
Chris@0: 
Chris@0: #endif
Chris@98: 
Chris@98: ProcessStatus
Chris@98: GetProcessStatus(int pid)
Chris@98: {
Chris@101: #ifdef _WIN32
Chris@103:     HANDLE handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
Chris@101:     if (!handle) {
Chris@101:         return ProcessNotRunning;
Chris@101:     } else {
Chris@101:         CloseHandle(handle);
Chris@101:         return ProcessRunning;
Chris@101:     }
Chris@101: #else
Chris@101:     if (kill(getpid(), 0) == 0) {
Chris@101:         if (kill(pid, 0) == 0) {
Chris@101:             return ProcessRunning;
Chris@101:         } else {
Chris@101:             return ProcessNotRunning;
Chris@101:         }
Chris@101:     } else {
Chris@98:         return UnknownProcessStatus;
Chris@98:     }
Chris@98: #endif
Chris@98: }
Chris@98: 
Chris@127: double mod(double x, double y) { return x - (y * floor(x / y)); }
Chris@127: float modf(float x, float y) { return x - (y * floorf(x / y)); }
Chris@127: 
Chris@127: double princarg(double a) { return mod(a + M_PI, -2 * M_PI) + M_PI; }
Chris@127: float princargf(float a) { return modf(a + M_PI, -2 * M_PI) + M_PI; }
Chris@127: