src/win32.cc

   1 /*
   2  * Windows support
   3  * AUTHOR: Guido Serassio <serassio@squid-cache.org>
   4  * inspired by previous work by Romeo Anghelache & Eric Stern.
   5  *
   6  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   7  * ----------------------------------------------------------
   8  *
   9  *  Squid is the result of efforts by numerous individuals from
  10  *  the Internet community; see the CONTRIBUTORS file for full
  11  *  details.   Many organizations have provided support for Squid's
  12  *  development; see the SPONSORS file for full details.  Squid is
  13  *  Copyrighted (C) 2001 by the Regents of the University of
  14  *  California; see the COPYRIGHT file for full details.  Squid
  15  *  incorporates software developed and/or copyrighted by other
  16  *  sources; see the CREDITS file for full details.
  17  *
  18  *  This program is free software; you can redistribute it and/or modify
  19  *  it under the terms of the GNU General Public License as published by
  20  *  the Free Software Foundation; either version 2 of the License, or
  21  *  (at your option) any later version.
  22  *
  23  *  This program is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with this program; if not, write to the Free Software
  30  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  31  *
  32  */
  33
  34 #include "squid.h"
  35 #include "win32.h"
  36
  37 #if _SQUID_WINDOWS_
  38 #if HAVE_WIN32_PSAPI
  39 #include <psapi.h>
  40 #endif
  41 #ifndef _MSWSOCK_
  42 #include <mswsock.h>
  43 #endif
  44 #include <fde.h>
  45
  46 SQUIDCEXTERN LPCRITICAL_SECTION dbg_mutex;
  47 void WIN32_ExceptionHandlerCleanup(void);
  48 static LPTOP_LEVEL_EXCEPTION_FILTER Win32_Old_ExceptionHandler = NULL;
  49
  50 int
  51 Win32__WSAFDIsSet(int fd, fd_set FAR * set)
  52 {
  53     fde *F = &fd_table[fd];
  54     SOCKET s = F->win32.handle;
  55
  56     return __WSAFDIsSet(s, set);
  57 }
  58
  59 LONG CALLBACK WIN32_ExceptionHandler(EXCEPTION_POINTERS* ep)
  60 {
  61     EXCEPTION_RECORD* er;
  62
  63     er = ep->ExceptionRecord;
  64
  65     switch (er->ExceptionCode) {
  66
  67     case EXCEPTION_ACCESS_VIOLATION:
  68         raise(SIGSEGV);
  69         break;
  70
  71     case EXCEPTION_DATATYPE_MISALIGNMENT:
  72
  73     case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
  74
  75     case EXCEPTION_IN_PAGE_ERROR:
  76         death(SIGBUS);
  77         break;
  78
  79     default:
  80         break;
  81     }
  82
  83     return EXCEPTION_CONTINUE_SEARCH;
  84 }
  85
  86 void WIN32_ExceptionHandlerInit()
  87 {
  88 #if !defined(_DEBUG)
  89
  90     if (Win32_Old_ExceptionHandler == NULL)
  91         Win32_Old_ExceptionHandler = SetUnhandledExceptionFilter(WIN32_ExceptionHandler);
  92
  93 #endif
  94 }
  95
  96 void WIN32_ExceptionHandlerCleanup()
  97 {
  98     if (Win32_Old_ExceptionHandler != NULL)
  99         SetUnhandledExceptionFilter(Win32_Old_ExceptionHandler);
 100 }
 101
 102 #endif /* SQUID_WINDOWS_ */