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/*
$Id: system.h,v 1.10 2002/01/06 13:27:48 mbn Exp $
------------------------------------------------------------------------
ClanLib, the platform independent game SDK.
This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
version 2. See COPYING for details.
For a total list of contributers see CREDITS.
See http://www.clanlib.org
------------------------------------------------------------------------
*/
//! clanCore="System"
//! header=core.h
#ifndef header_system
#define header_system
class CL_EventListener;
class CL_Signal_v0;
//: Generic functions that didn't fit in other places.
class CL_System
{
public:
//! Operations:
//: Checks for system events, updates input and other stuff.
static void keep_alive();
//: Checks for system events (pump the CL_KeepAlive objects).
//- Return when 'millis' has elapsed.
static void keep_alive(int millis);
//: Checks for system events (pump the CL_KeepAlive objects).
//- Return when one of the events trigger, or when timeout has elapsed.
static bool keep_alive(CL_EventListener &events, int timeout = -1);
//: Sleep for 'millis' milliseconds.
static void sleep(int millis);
//: Get the current time (since system boot), in milliseconds.
static unsigned int get_time();
//: Suspend the time.
//: get_time() will continue to return the same value until resume_time() is called.
static void suspend_time();
//: Resumes the time.
//: get_time() will return the current time again.
static void resume_time();
//: Returns true if MMX technology is available on this CPU.
static bool detect_mmx();
//: Returns true if 3DNow! technology is available on this CPU.
static bool detect_3dnow();
//: Returns true if extended 3DNow! is present on this CPU.
static bool detect_ext_3dnow();
//: Returns the signal emitted when WM_QUIT or similar window system quit
//: message is received.
static CL_Signal_v0 &sig_quit();
};
#endif
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