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285 lines
8.6 KiB
C
285 lines
8.6 KiB
C
/* $XFree86: xc/programs/Xserver/os/osinit.c,v 3.32 2004/06/02 22:43:06 dawes Exp $ */
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/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/*
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* Copyright (c) 1996-2004 by The XFree86 Project, Inc.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution, and in the same place and form as other copyright,
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* license and disclaimer information.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment: "This product
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* includes software developed by The XFree86 Project, Inc
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* (http://www.xfree86.org/) and its contributors", in the same
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* place and form as other third-party acknowledgments. Alternately,
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* this acknowledgment may appear in the software itself, in the
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* same form and location as other such third-party acknowledgments.
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*
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* 4. Except as contained in this notice, the name of The XFree86
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* Project, Inc shall not be used in advertising or otherwise to
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* promote the sale, use or other dealings in this Software without
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* prior written authorization from The XFree86 Project, Inc.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE XFREE86 PROJECT, INC OR ITS CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include "X.h"
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#include "os.h"
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#include "osdep.h"
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#include "Xos.h"
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#ifdef SMART_SCHEDULE
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#include "dixstruct.h"
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#endif
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#ifndef PATH_MAX
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#ifdef MAXPATHLEN
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#define PATH_MAX MAXPATHLEN
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#else
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#define PATH_MAX 1024
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#endif
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#endif
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#if defined(Lynx) || defined(__SCO__)
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#include <sys/wait.h>
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#endif
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#if !defined(SYSV) && !defined(WIN32) && !defined(Lynx) && !defined(QNX4)
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#include <sys/resource.h>
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#endif
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#ifndef ADMPATH
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#define ADMPATH "/usr/adm/X%smsgs"
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#endif
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extern char *display;
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#ifdef RLIMIT_DATA
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int limitDataSpace = -1;
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#endif
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#ifdef RLIMIT_STACK
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int limitStackSpace = -1;
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#endif
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#ifdef RLIMIT_NOFILE
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int limitNoFile = -1;
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#endif
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Bool OsDelayInitColors = FALSE;
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void
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OsInit(void)
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{
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static Bool been_here = FALSE;
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static char* admpath = ADMPATH;
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static char* devnull = "/dev/null";
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char fname[PATH_MAX];
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#ifdef macII
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set42sig();
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#endif
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#ifdef DDXOSINIT
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OsVendorPreInit();
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#endif
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if (!been_here) {
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#if !defined(__SCO__) && !defined(__CYGWIN__)
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fclose(stdin);
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fclose(stdout);
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#endif
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/*
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* If a write of zero bytes to stderr returns non-zero, i.e. -1,
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* then writing to stderr failed, and we'll write somewhere else
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* instead. (Apparently this never happens in the Real World.)
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*/
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if (write (2, fname, 0) == -1)
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{
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FILE *err;
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if (strlen (display) + strlen (admpath) + 1 < sizeof fname)
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sprintf (fname, admpath, display);
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else
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strcpy (fname, devnull);
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/*
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* uses stdio to avoid os dependencies here,
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* a real os would use
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* open (fname, O_WRONLY|O_APPEND|O_CREAT, 0666)
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*/
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if (!(err = fopen (fname, "a+")))
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err = fopen (devnull, "w");
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if (err && (fileno(err) != 2)) {
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dup2 (fileno (err), 2);
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fclose (err);
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}
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#if defined(SYSV) || defined(SVR4) || defined(__UNIXOS2__) || defined(WIN32) || defined(__CYGWIN__)
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{
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static char buf[BUFSIZ];
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setvbuf (stderr, buf, _IOLBF, BUFSIZ);
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}
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#else
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setlinebuf(stderr);
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#endif
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}
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#ifndef X_NOT_POSIX
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if (getpgrp () == 0)
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setpgid (0, 0);
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#else
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#if !defined(SYSV) && !defined(WIN32)
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if (getpgrp (0) == 0)
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setpgrp (0, getpid ());
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#endif
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#endif
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#ifdef RLIMIT_DATA
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if (limitDataSpace >= 0)
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{
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struct rlimit rlim;
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if (!getrlimit(RLIMIT_DATA, &rlim))
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{
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if ((limitDataSpace > 0) && (limitDataSpace < rlim.rlim_max))
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rlim.rlim_cur = limitDataSpace;
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else
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rlim.rlim_cur = rlim.rlim_max;
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(void)setrlimit(RLIMIT_DATA, &rlim);
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}
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}
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#endif
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#ifdef RLIMIT_STACK
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if (limitStackSpace >= 0)
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{
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struct rlimit rlim;
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if (!getrlimit(RLIMIT_STACK, &rlim))
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{
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if ((limitStackSpace > 0) && (limitStackSpace < rlim.rlim_max))
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rlim.rlim_cur = limitStackSpace;
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else
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rlim.rlim_cur = rlim.rlim_max;
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(void)setrlimit(RLIMIT_STACK, &rlim);
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}
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}
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#endif
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#ifdef RLIMIT_NOFILE
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if (limitNoFile >= 0)
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{
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struct rlimit rlim;
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if (!getrlimit(RLIMIT_NOFILE, &rlim))
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{
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if ((limitNoFile > 0) && (limitNoFile < rlim.rlim_max))
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rlim.rlim_cur = limitNoFile;
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else
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rlim.rlim_cur = rlim.rlim_max;
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#if 0
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if (rlim.rlim_cur > MAXSOCKS)
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rlim.rlim_cur = MAXSOCKS;
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#endif
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(void)setrlimit(RLIMIT_NOFILE, &rlim);
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}
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}
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#endif
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#ifdef SERVER_LOCK
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LockServer();
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#endif
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been_here = TRUE;
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}
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TimerInit();
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#ifdef DDXOSINIT
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OsVendorInit();
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#endif
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/*
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* No log file by default. OsVendorInit() should call LogInit() with the
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* log file name if logging to a file is desired.
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*/
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LogInit(NULL, NULL);
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#ifdef SMART_SCHEDULE
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if (!SmartScheduleDisable)
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if (!SmartScheduleInit ())
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SmartScheduleDisable = TRUE;
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#endif
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OsInitAllocator();
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if (!OsDelayInitColors) OsInitColors();
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}
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void
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OsCleanup(Bool terminating)
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{
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#ifdef SERVER_LOCK
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if (terminating)
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{
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UnlockServer();
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}
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#endif
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}
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