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       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*************************************************************************
       3                 :            :  *
       4                 :            :  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       5                 :            :  *
       6                 :            :  * Copyright 2000, 2010 Oracle and/or its affiliates.
       7                 :            :  *
       8                 :            :  * OpenOffice.org - a multi-platform office productivity suite
       9                 :            :  *
      10                 :            :  * This file is part of OpenOffice.org.
      11                 :            :  *
      12                 :            :  * OpenOffice.org is free software: you can redistribute it and/or modify
      13                 :            :  * it under the terms of the GNU Lesser General Public License version 3
      14                 :            :  * only, as published by the Free Software Foundation.
      15                 :            :  *
      16                 :            :  * OpenOffice.org is distributed in the hope that it will be useful,
      17                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      18                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      19                 :            :  * GNU Lesser General Public License version 3 for more details
      20                 :            :  * (a copy is included in the LICENSE file that accompanied this code).
      21                 :            :  *
      22                 :            :  * You should have received a copy of the GNU Lesser General Public License
      23                 :            :  * version 3 along with OpenOffice.org.  If not, see
      24                 :            :  * <http://www.openoffice.org/license.html>
      25                 :            :  * for a copy of the LGPLv3 License.
      26                 :            :  *
      27                 :            :  ************************************************************************/
      28                 :            : 
      29                 :            : #include "sal/config.h"
      30                 :            : 
      31                 :            : #if defined MACOSX
      32                 :            : #include <cassert>
      33                 :            : #include <limits>
      34                 :            : #include <unistd.h>
      35                 :            : #endif
      36                 :            : 
      37                 :            : #include "osl/process.h"
      38                 :            : #include "sal/types.h"
      39                 :            : 
      40                 :            : extern "C" {
      41                 :            : 
      42                 :       2864 : SAL_DLLPUBLIC void SAL_CALL sal_detail_initialize(int argc, char ** argv) {
      43                 :            : #if defined MACOSX
      44                 :            :     // On Mac OS X, soffice can restart itself via exec (see restartOnMac in
      45                 :            :     // desktop/source/app/app.cxx), which leaves all file descriptors open,
      46                 :            :     // which in turn can have unwanted effects (see
      47                 :            :     // <https://bugs.freedesktop.org/show_bug.cgi?id=50603> "Unable to update
      48                 :            :     // LibreOffice without resetting user profile").  But closing fds in
      49                 :            :     // restartOnMac before calling exec does not work, as additional threads
      50                 :            :     // might still be running then, wich can still use those fds and cause
      51                 :            :     // crashes.  Therefore, the simples solution is to close fds at process
      52                 :            :     // start (as early as possible, so that no other threads have been created
      53                 :            :     // yet that might already have opened some fds); this is done for all kinds
      54                 :            :     // of processes here, not just soffice, but hopefully none of our processes
      55                 :            :     // rely on being spawned with certain fds already open.  Unfortunately, Mac
      56                 :            :     // OS X appears to have no better interface to close all fds (like
      57                 :            :     // closefrom):
      58                 :            :     long openMax = sysconf(_SC_OPEN_MAX);
      59                 :            :     if (openMax == -1) {
      60                 :            :         // Some random value, but hopefully sysconf never returns -1 anyway:
      61                 :            :         openMax = 1024;
      62                 :            :     }
      63                 :            :     assert(openMax >= 0 && openMax <= std::numeric_limits< int >::max());
      64                 :            :     for (int fd = 3; fd < openMax; ++fd) {
      65                 :            :         close(fd);
      66                 :            :     }
      67                 :            : #endif
      68                 :            : 
      69                 :       2864 :     osl_setCommandArgs(argc, argv);
      70                 :       2864 : }
      71                 :            : 
      72                 :       2864 : SAL_DLLPUBLIC void SAL_CALL sal_detail_deinitialize() {}
      73                 :            : 
      74                 :            : }
      75                 :            : 
      76                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */