| 1 |
– |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
– |
|
| 1 |
|
#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* Routines to communicate with separate process via dual pipes |
| 6 |
+ |
* |
| 7 |
+ |
* External symbols declared in standard.h |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
+ |
/* ==================================================================== |
| 11 |
+ |
* The Radiance Software License, Version 1.0 |
| 12 |
+ |
* |
| 13 |
+ |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 14 |
+ |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 15 |
+ |
* |
| 16 |
+ |
* Redistribution and use in source and binary forms, with or without |
| 17 |
+ |
* modification, are permitted provided that the following conditions |
| 18 |
+ |
* are met: |
| 19 |
+ |
* |
| 20 |
+ |
* 1. Redistributions of source code must retain the above copyright |
| 21 |
+ |
* notice, this list of conditions and the following disclaimer. |
| 22 |
+ |
* |
| 23 |
+ |
* 2. Redistributions in binary form must reproduce the above copyright |
| 24 |
+ |
* notice, this list of conditions and the following disclaimer in |
| 25 |
+ |
* the documentation and/or other materials provided with the |
| 26 |
+ |
* distribution. |
| 27 |
+ |
* |
| 28 |
+ |
* 3. The end-user documentation included with the redistribution, |
| 29 |
+ |
* if any, must include the following acknowledgment: |
| 30 |
+ |
* "This product includes Radiance software |
| 31 |
+ |
* (http://radsite.lbl.gov/) |
| 32 |
+ |
* developed by the Lawrence Berkeley National Laboratory |
| 33 |
+ |
* (http://www.lbl.gov/)." |
| 34 |
+ |
* Alternately, this acknowledgment may appear in the software itself, |
| 35 |
+ |
* if and wherever such third-party acknowledgments normally appear. |
| 36 |
+ |
* |
| 37 |
+ |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 38 |
+ |
* and "The Regents of the University of California" must |
| 39 |
+ |
* not be used to endorse or promote products derived from this |
| 40 |
+ |
* software without prior written permission. For written |
| 41 |
+ |
* permission, please contact [email protected]. |
| 42 |
+ |
* |
| 43 |
+ |
* 5. Products derived from this software may not be called "Radiance", |
| 44 |
+ |
* nor may "Radiance" appear in their name, without prior written |
| 45 |
+ |
* permission of Lawrence Berkeley National Laboratory. |
| 46 |
+ |
* |
| 47 |
+ |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 48 |
+ |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 49 |
+ |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 50 |
+ |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 51 |
+ |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 52 |
+ |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 53 |
+ |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 54 |
+ |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 55 |
+ |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 56 |
+ |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 57 |
+ |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 58 |
+ |
* SUCH DAMAGE. |
| 59 |
+ |
* ==================================================================== |
| 60 |
+ |
* |
| 61 |
+ |
* This software consists of voluntary contributions made by many |
| 62 |
+ |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 63 |
+ |
* information on Lawrence Berkeley National Laboratory, please see |
| 64 |
+ |
* <http://www.lbl.gov/>. |
| 65 |
+ |
*/ |
| 66 |
+ |
|
| 67 |
|
/* find pipe buffer limit */ |
| 68 |
|
#include <sys/param.h> |
| 69 |
|
|
| 81 |
|
|
| 82 |
|
#include "vfork.h" |
| 83 |
|
|
| 84 |
+ |
#ifndef BSD |
| 85 |
+ |
#include <errno.h> |
| 86 |
+ |
#endif |
| 87 |
|
|
| 88 |
+ |
|
| 89 |
|
int |
| 90 |
|
open_process(pd, av) /* open communication to separate process */ |
| 91 |
|
int pd[3]; |
| 161 |
|
int siz; |
| 162 |
|
{ |
| 163 |
|
register int cc = 0, nrem = siz; |
| 164 |
< |
|
| 164 |
> |
retry: |
| 165 |
|
while (nrem > 0 && (cc = read(fd, bpos, nrem)) > 0) { |
| 166 |
|
bpos += cc; |
| 167 |
|
nrem -= cc; |
| 168 |
|
} |
| 169 |
< |
if (cc < 0) |
| 169 |
> |
if (cc < 0) { |
| 170 |
> |
#ifndef BSD |
| 171 |
> |
if (errno == EINTR) /* we were interrupted! */ |
| 172 |
> |
goto retry; |
| 173 |
> |
#endif |
| 174 |
|
return(cc); |
| 175 |
+ |
} |
| 176 |
|
return(siz-nrem); |
| 177 |
|
} |
| 178 |
|
|
| 184 |
|
int siz; |
| 185 |
|
{ |
| 186 |
|
register int cc = 0, nrem = siz; |
| 187 |
< |
|
| 187 |
> |
retry: |
| 188 |
|
while (nrem > 0 && (cc = write(fd, bpos, nrem)) > 0) { |
| 189 |
|
bpos += cc; |
| 190 |
|
nrem -= cc; |
| 191 |
|
} |
| 192 |
< |
if (cc < 0) |
| 192 |
> |
if (cc < 0) { |
| 193 |
> |
#ifndef BSD |
| 194 |
> |
if (errno == EINTR) /* we were interrupted! */ |
| 195 |
> |
goto retry; |
| 196 |
> |
#endif |
| 197 |
|
return(cc); |
| 198 |
+ |
} |
| 199 |
|
return(siz-nrem); |
| 200 |
|
} |
