зеркало из https://github.com/mozilla/pjs.git
232 строки
6.2 KiB
C++
232 строки
6.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jerry.Kirk@Nexwarecorp.com
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* Chris Seawood <cls@seawood.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* This module is supposed to abstract signal handling away from the other
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* platforms that do not support it.
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*/
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#include <signal.h>
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#include <stdio.h>
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#include "prthread.h"
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#include "plstr.h"
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#include "prenv.h"
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#if defined(LINUX)
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#include <stdlib.h> // atoi
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#endif
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#if defined(SOLARIS)
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#include <sys/resource.h>
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#endif
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#ifdef XP_BEOS
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#include <be/app/Application.h>
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#include <string.h>
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#include "nsCOMPtr.h"
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#include "nsIServiceManager.h"
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#include "nsIAppStartup.h"
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#include "nsXPFEComponentsCID.h"
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#endif
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#ifdef MOZ_WIDGET_PHOTON
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#include <photon/PhProto.h>
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#include <string.h>
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#endif
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static char _progname[1024] = "huh?";
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static unsigned int _gdb_sleep_duration = 300;
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#if defined(LINUX) && defined(DEBUG) && \
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(defined(__i386) || defined(__x86_64) || defined(PPC))
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#define CRAWL_STACK_ON_SIGSEGV
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#endif
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#ifdef MOZ_WIDGET_PHOTON
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void abnormal_exit_handler(int signum)
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{
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/* Free any shared memory that has been allocated */
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PgShmemCleanup();
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#if defined(DEBUG)
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if ( (signum == SIGSEGV)
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|| (signum == SIGILL)
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|| (signum == SIGABRT)
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|| (signum == SIGFPE)
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)
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{
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printf("prog = %s\npid = %d\nsignal = %s\n",
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_progname, getpid(), strsignal(signum));
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printf("Sleeping for %d seconds.\n",_gdb_sleep_duration);
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printf("Type 'gdb %s %d' to attach your debugger to this thread.\n",
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_progname, getpid());
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sleep(_gdb_sleep_duration);
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printf("Done sleeping...\n");
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}
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#endif
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_exit(1);
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}
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#elif defined(CRAWL_STACK_ON_SIGSEGV)
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#include <unistd.h>
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#include "nsISupportsUtils.h"
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#include "nsStackFrameUnix.h"
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void
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ah_crap_handler(int signum)
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{
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printf("\nProgram %s (pid = %d) received signal %d.\n",
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_progname,
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getpid(),
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signum);
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printf("Stack:\n");
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DumpStackToFile(stdout);
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printf("Sleeping for %d seconds.\n",_gdb_sleep_duration);
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printf("Type 'gdb %s %d' to attach your debugger to this thread.\n",
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_progname,
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getpid());
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sleep(_gdb_sleep_duration);
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printf("Done sleeping...\n");
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}
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#endif // CRAWL_STACK_ON_SIGSEGV
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#ifdef XP_BEOS
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void beos_signal_handler(int signum) {
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#ifdef DEBUG
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fprintf(stderr, "beos_signal_handler: %d\n", signum);
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#endif
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nsresult rv;
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nsCOMPtr<nsIAppStartup> appStartup(do_GetService(NS_APPSTARTUP_CONTRACTID, &rv));
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if (NS_FAILED(rv)) {
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// Failed to get the appstartup service so shutdown the hard way
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#ifdef DEBUG
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fprintf(stderr, "beos_signal_handler: appShell->do_GetService() failed\n");
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#endif
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exit(13);
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}
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// Exit the appshell so that the app can shutdown normally
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appStartup->Quit(nsIAppStartup::eAttemptQuit);
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}
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#endif
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void InstallUnixSignalHandlers(const char *ProgramName)
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{
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PL_strncpy(_progname,ProgramName, (sizeof(_progname)-1) );
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const char *gdbSleep = PR_GetEnv("MOZ_GDB_SLEEP");
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if (gdbSleep && *gdbSleep)
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{
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unsigned int s;
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if (1 == sscanf(gdbSleep, "%u", &s)) {
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_gdb_sleep_duration = s;
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}
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}
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#if defined(MOZ_WIDGET_PHOTON)
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/* Neutrino need this to free shared memory in case of a crash */
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signal(SIGTERM, abnormal_exit_handler);
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signal(SIGQUIT, abnormal_exit_handler);
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signal(SIGINT, abnormal_exit_handler);
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signal(SIGHUP, abnormal_exit_handler);
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signal(SIGSEGV, abnormal_exit_handler);
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signal(SIGILL, abnormal_exit_handler);
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signal(SIGABRT, abnormal_exit_handler);
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signal(SIGFPE, abnormal_exit_handler);
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#elif defined(CRAWL_STACK_ON_SIGSEGV)
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signal(SIGSEGV, ah_crap_handler);
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signal(SIGILL, ah_crap_handler);
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signal(SIGABRT, ah_crap_handler);
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signal(SIGFPE, ah_crap_handler);
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#endif // CRAWL_STACK_ON_SIGSEGV
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#if defined(DEBUG) && defined(LINUX)
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const char *memLimit = PR_GetEnv("MOZ_MEM_LIMIT");
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if (memLimit && *memLimit)
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{
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long m = atoi(memLimit);
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m *= (1024*1024);
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struct rlimit r;
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r.rlim_cur = m;
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r.rlim_max = m;
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setrlimit(RLIMIT_AS, &r);
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}
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#endif
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#if defined(SOLARIS)
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#define NOFILES 512
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// Boost Solaris file descriptors
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{
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struct rlimit rl;
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if (getrlimit(RLIMIT_NOFILE, &rl) == 0)
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if (rl.rlim_cur < NOFILES) {
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rl.rlim_cur = NOFILES;
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if (setrlimit(RLIMIT_NOFILE, &rl) < 0) {
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perror("setrlimit(RLIMIT_NOFILE)");
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fprintf(stderr, "Cannot exceed hard limit for open files");
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}
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#if defined(DEBUG)
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if (getrlimit(RLIMIT_NOFILE, &rl) == 0)
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printf("File descriptors set to %d\n", rl.rlim_cur);
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#endif //DEBUG
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}
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}
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#endif //SOLARIS
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#ifdef XP_BEOS
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signal(SIGTERM, beos_signal_handler);
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#endif
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}
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