usr/src/lib/libast/common/vmalloc/vmexit.c

   1 /***********************************************************************
   2 *                                                                      *
   3 *               This software is part of the ast package               *
   4 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
   5 *                      and is licensed under the                       *
   6 *                  Common Public License, Version 1.0                  *
   7 *                    by AT&T Intellectual Property                     *
   8 *                                                                      *
   9 *                A copy of the License is available at                 *
  10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
  11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
  12 *                                                                      *
  13 *              Information and Software Systems Research               *
  14 *                            AT&T Research                             *
  15 *                           Florham Park NJ                            *
  16 *                                                                      *
  17 *                 Glenn Fowler <gsf@research.att.com>                  *
  18 *                  David Korn <dgk@research.att.com>                   *
  19 *                   Phong Vo <kpv@research.att.com>                    *
  20 *                                                                      *
  21 ***********************************************************************/
  22 #if defined(_UWIN)
  23
  24 void _STUB_vmexit(){}
  25
  26 #else
  27
  28 #include        "vmhdr.h"
  29
  30 /*
  31 **      Any required functions for process exiting.
  32 **      Written by Kiem-Phong Vo, kpv@research.att.com (05/25/93).
  33 */
  34 #if _PACKAGE_ast || _lib_atexit
  35
  36 void _STUB_vmexit(){}
  37
  38 #else
  39
  40 #if _lib_onexit
  41
  42 #if __STD_C
  43 int atexit(void (*exitf)(void))
  44 #else
  45 int atexit(exitf)
  46 void    (*exitf)();
  47 #endif
  48 {
  49         return onexit(exitf);
  50 }
  51
  52 #else /*!_lib_onexit*/
  53
  54 typedef struct _exit_s
  55 {       struct _exit_s* next;
  56         void(*          exitf)_ARG_((void));
  57 } Exit_t;
  58 static Exit_t*  Exit;
  59
  60 #if __STD_C
  61 atexit(void (*exitf)(void))
  62 #else
  63 atexit(exitf)
  64 void    (*exitf)();
  65 #endif
  66 {       Exit_t* e;
  67
  68         if(!(e = (Exit_t*)malloc(sizeof(Exit_t))) )
  69                 return -1;
  70         e->exitf = exitf;
  71         e->next = Exit;
  72         Exit = e;
  73         return 0;
  74 }
  75
  76 #if __STD_C
  77 void exit(int type)
  78 #else
  79 void exit(type)
  80 int     type;
  81 #endif
  82 {
  83         Exit_t* e;
  84
  85         for(e = Exit; e; e = e->next)
  86                 (*e->exitf)();
  87
  88 #if _exit_cleanup
  89         _cleanup();
  90 #endif
  91
  92         _exit(type);
  93         return type;
  94 }
  95
  96 #endif  /* _lib_onexit || _lib_on_exit */
  97
  98 #endif /*!PACKAGE_ast*/
  99
 100 #endif