int.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 112 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include <stdio.h>
#include <dos.h>
#include <signal.h>
#include <setjmp.h>
#include "vi.h"
#include "win.h"
#define _WINSOCKAPI_
#include <windows.h>

static volatile int     exit_thread;

void TimerThread( void )
{
    char        date[80];
    char_info   *clk;

    while( !exit_thread ) {
        Sleep( 1000 );
        ClockTicks++;
        if( EditFlags.ClockActive && EditFlags.SpinningOurWheels && EditFlags.Spinning ) {
            (*(char_info *)SpinLoc).ch = SpinData[ SpinCount ];
            MyVioShowBuf( SpinLoc-Scrn, 1 );
            SpinCount++;
            if( SpinCount >= 4 ) {
                SpinCount = 0;
            }
        }
        if( (ClockTicks % 10) != 0 ) {
            continue;
        }
        GetDateTimeString( date );
        if( EditFlags.ClockActive && EditFlags.Clock ) {
            int bytes = 5;
            clk = (char_info *) ClockStart;
            if( EditFlags.DisplaySeconds ) {
                clk[ 7 ].ch = date[DATE_LEN-1];
                clk[ 6 ].ch = date[DATE_LEN-2];
                clk[ 5 ].ch = ':';
                bytes = 8;
            }
            clk[ 4 ].ch = date[DATE_LEN-4];
            clk[ 3 ].ch = date[DATE_LEN-5];
            clk[ 2 ].ch = ':';
            clk[ 1 ].ch = date[DATE_LEN-7];
            clk[ 0 ].ch = date[DATE_LEN-8];
            MyVioShowBuf( ClockStart-Scrn, bytes );
        }
    }
    ExitThread( 0 );
}

BOOL _cdecl BreakHandler( ULONG type )
{
    switch( type ) {
    case CTRL_C_EVENT:
    case CTRL_BREAK_EVENT:
        if( EditFlags.WatchForBreak ) {
            EditFlags.BreakPressed = TRUE;
        }
        return( TRUE );
    default:
        return( FALSE );
    }
}

void SetInterrupts( void )
{
    DWORD       tid;

    exit_thread = FALSE;
    CreateThread( NULL, 1024, (LPVOID) TimerThread, NULL, 0, &tid );
    SetConsoleCtrlHandler( (void *) BreakHandler, TRUE );
}

void RestoreInterrupts( void )
{
    exit_thread = TRUE;
    SetConsoleCtrlHandler( (void *) BreakHandler, FALSE );
}