Initial MSVC 2008 projects workspace

l2packets/os/os_abstraction.cpp

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+#include "stdafx.h"
+#include "os_abstraction.h"
+
+// in Lunux must include <sys/time.h>
+
+// returns number of milliseconds of current time
+// in windows - since Windows Start (uptime)
+// in Lunux - in current day
+unsigned long long int OS_GetTickCount()
+{
+#if defined(_WIN32) || defined(WIN32) || defined(WINVER) || defined(_WIN32_WINNT)
+	return (unsigned long long int)GetTickCount();
+#else
+	timeval tv;
+	if( gettimeofday( &tv, NULL ) == 0 )
+	{
+		return (unsigned long long int)( ((unsigned long long int)tv.tv_sec*1000) + tv.tv_usec/1000 );
+	}
+	else return 0; // error
+#endif
+}
+
+/** gettimeofday() description: The gettimeofday() function shall obtain the current time,
+expressed as seconds and microseconds since the Epoch, and store it in the timeval structure
+pointed to by tp. The resolution of the system clock is unspecified.
+If tzp is not a null pointer, the behavior is unspecified. **/
+
+/** struct timeval {
+time_t          tv_sec;         // seconds
+suseconds_t     tv_usec;        // microseconds
+}; **/
+
+
+
+/** http://www.linuxmanpages.com/man2/gettimeofday.2.php
+uses Libc, .....
+{$IFDEF LINUX}
+function GetTickCount: Cardinal;
+var
+tv: timeval;
+begin
+gettimeofday(tv, nil);
+{$RANGECHECKS OFF}
+Result := int64(tv.tv_sec) * 1000 + tv.tv_usec div 1000;
+end;
+{$ENDIF}
+**/
+
+/** Another idea:
+Implement GetTickCount in Linux
+To implement the GetTickCount API when porting code from Windows to Linux, use the following code:
+
+long getTickCount()
+{
+    tms tm;
+    return times(&tm);
+}
+
+**/

l2packets/os/os_abstraction.h

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+#ifndef H_OS_ABSTRCTION
+#define H_OS_ABSTRCTION
+
+/** \file os_abstraction.h
+* uses defines to determine under which OS it is compiled:
+* ifdef WIN32 | _WIN32 ... - Windows
+* else - Linux :)
+*/
+
+/** Os abstracted function GetTickCount() from Win32 API.\n
+* Returns number of milliseconds of current time.\n
+* in windows - since Windows Start (uptime)\n
+* in Lunux - in current day\n
+* \return number of milliseconds of current time
+*/
+unsigned long long int OS_GetTickCount();
+
+#endif