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- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15305 87f5fb63-7c3d-0410-a384-fd976d0f7a62
160 lines
4.3 KiB
C
160 lines
4.3 KiB
C
/*
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* $Id: unistd_time_delay.c,v 1.9 2006-04-05 08:39:45 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _UNISTD_HEADERS_H
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#include "unistd_headers.h"
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#endif /* _UNISTD_HEADERS_H */
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/****************************************************************************/
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#ifndef PROTO_TIMER_H
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#include <proto/timer.h>
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#endif /* PROTO_TIMER_H */
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/****************************************************************************/
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/* The following is not part of the ISO 'C' (1994) standard. */
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/****************************************************************************/
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/* A quick workaround for the timeval/timerequest->TimeVal/TimeRequest
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change in the recent OS4 header files. */
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#if defined(__NEW_TIMEVAL_DEFINITION_USED__)
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#define timeval TimeVal
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#define tv_secs Seconds
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#define tv_micro Microseconds
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#define timerequest TimeRequest
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#define tr_node Request
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#define tr_time Time
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#endif /* __NEW_TIMEVAL_DEFINITION_USED__ */
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/****************************************************************************/
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unsigned int
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__time_delay(unsigned long seconds,unsigned long microseconds)
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{
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unsigned int result = 0;
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ENTER();
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SHOWVALUE(seconds);
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if(__check_abort_enabled)
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__check_abort();
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if((seconds > 0 || microseconds > 0) && NOT __timer_busy)
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{
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#if defined(__amigaos4__)
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struct TimerIFace * ITimer = __ITimer;
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#else
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struct Library * TimerBase = __TimerBase;
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#endif /* __amigaos4__ */
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ULONG signals_to_wait_for;
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ULONG seconds_then;
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ULONG timer_signal;
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struct timeval tv;
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ULONG signals;
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__timer_busy = TRUE;
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__timer_request->tr_node.io_Command = TR_ADDREQUEST;
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__timer_request->tr_time.tv_secs = seconds;
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__timer_request->tr_time.tv_micro = microseconds;
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timer_signal = (1UL << __timer_port->mp_SigBit);
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signals_to_wait_for = timer_signal;
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SetSignal(0,signals_to_wait_for);
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if(__check_abort_enabled)
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SET_FLAG(signals_to_wait_for,__break_signal_mask);
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PROFILE_OFF();
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GetSysTime(&tv);
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PROFILE_ON();
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seconds_then = tv.tv_secs + seconds;
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SendIO((struct IORequest *)__timer_request);
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while(TRUE)
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{
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PROFILE_OFF();
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signals = Wait(signals_to_wait_for);
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PROFILE_ON();
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if(FLAG_IS_SET(signals,__break_signal_mask))
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{
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ULONG seconds_now;
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if(CheckIO((struct IORequest *)__timer_request) == BUSY)
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AbortIO((struct IORequest *)__timer_request);
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WaitIO((struct IORequest *)__timer_request);
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SetSignal(__break_signal_mask,__break_signal_mask);
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__check_abort();
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/* Now figure out how many seconds have elapsed and
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how many would still remain. */
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PROFILE_OFF();
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GetSysTime(&tv);
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PROFILE_ON();
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seconds_now = tv.tv_secs;
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if(seconds_now < seconds_then)
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result = seconds_then - seconds_now;
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break;
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}
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if(FLAG_IS_SET(signals,timer_signal))
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{
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WaitIO((struct IORequest *)__timer_request);
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break;
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}
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}
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__timer_busy = FALSE;
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}
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RETURN(result);
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return(result);
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}
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