diff system/System.cpp @ 150:4b2ea82fd0ed

* Reorganising code base.  This revision probably should compile once more.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/system/System.cpp	Mon Jul 31 14:05:22 2006 +0000
@@ -0,0 +1,78 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006 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 "System.h"
+
+#ifndef _WIN32
+#include <signal.h>
+#endif
+
+#include <iostream>
+
+#ifdef _WIN32
+
+extern "C" {
+
+void usleep(unsigned long usec)
+{
+    ::Sleep(usec / 1000);
+}
+
+void gettimeofday(struct timeval *tv, void *tz)
+{
+    union { 
+	long long ns100;  
+	FILETIME ft; 
+    } now; 
+    
+    ::GetSystemTimeAsFileTime(&now.ft); 
+    tv->tv_usec = (long)((now.ns100 / 10LL) % 1000000LL); 
+    tv->tv_sec = (long)((now.ns100 - 116444736000000000LL) / 10000000LL); 
+}
+
+}
+
+#endif
+
+ProcessStatus
+GetProcessStatus(int pid)
+{
+#ifdef _WIN32
+    HANDLE handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
+    if (!handle) {
+        return ProcessNotRunning;
+    } else {
+        CloseHandle(handle);
+        return ProcessRunning;
+    }
+#else
+    if (kill(getpid(), 0) == 0) {
+        if (kill(pid, 0) == 0) {
+            return ProcessRunning;
+        } else {
+            return ProcessNotRunning;
+        }
+    } else {
+        return UnknownProcessStatus;
+    }
+#endif
+}
+
+double mod(double x, double y) { return x - (y * floor(x / y)); }
+float modf(float x, float y) { return x - (y * floorf(x / y)); }
+
+double princarg(double a) { return mod(a + M_PI, -2 * M_PI) + M_PI; }
+float princargf(float a) { return modf(a + M_PI, -2 * M_PI) + M_PI; }
+