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git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15306 87f5fb63-7c3d-0410-a384-fd976d0f7a62
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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* $Id: termios_tcsendbreak.c,v 1.3 2006-01-08 12:04:27 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 _TERMIOS_HEADERS_H
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#include "termios_headers.h"
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#endif /* _TERMIOS_HEADERS_H */
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/****************************************************************************/
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/*
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* tcsendbreak() has a rather odd time specification.
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* If duration is 0, it will send a BREAK for 0.25-0.5 seconds
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* and if duration is non-zero...
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* Linux asserts BREAK for N*duration where N is somewhere between 0.25 and 0.5 seconds.
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* Solaris calls tcdrain() instead. (According to the manual)
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* Let us try the Solaris way and see how it goes.
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*
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* If the file descriptor does not referr to a serial port, no action is needed.
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*/
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int
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tcsendbreak(int file_descriptor,int duration)
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{
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int result = ERROR;
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struct fd *fd;
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struct termios *tios;
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ENTER();
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SHOWVALUE(file_descriptor);
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SHOWVALUE(duration);
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if(__check_abort_enabled)
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__check_abort();
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__stdio_lock();
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fd = __get_file_descriptor(file_descriptor);
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if(fd == NULL || FLAG_IS_CLEAR(fd->fd_Flags,FDF_TERMIOS))
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{
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__set_errno(EBADF);
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goto out;
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}
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__fd_lock(fd);
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assert( fd->fd_Aux != NULL );
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tios = fd->fd_Aux;
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switch(tios->type)
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{
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case TIOST_CONSOLE:
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result = OK;
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break;
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case TIOST_SERIAL:
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if(duration == 0)
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{
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/* TODO */
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result = OK;
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}
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else
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{
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result = tcdrain(file_descriptor);
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}
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break;
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default:
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SHOWMSG("Invalid tios type in tcsendbreak.");
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goto out;
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}
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out:
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__fd_unlock(fd);
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__stdio_unlock();
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RETURN(result);
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return(result);
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}
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