dlls/msvcrt/exit.c

   1 /*
   2  * msvcrt.dll exit functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  */
   6 #include "msvcrt.h"
   7
   8 #include "msvcrt/conio.h"
   9 #include "msvcrt/stdlib.h"
  10
  11
  12 #include "wine/debug.h"
  13
  14 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  15
  16 /* MT */
  17 extern CRITICAL_SECTION MSVCRT_exit_cs;
  18 #define LOCK_EXIT      EnterCriticalSection(&MSVCRT_exit_cs)
  19 #define UNLOCK_EXIT    LeaveCriticalSection(&MSVCRT_exit_cs)
  20
  21 static _onexit_t *MSVCRT_atexit_table = NULL;
  22 static int MSVCRT_atexit_table_size = 0;
  23 static int MSVCRT_atexit_registered = 0; /* Points to free slot */
  24
  25 extern int MSVCRT_app_type;
  26
  27 /* INTERNAL: call atexit functions */
  28 void __MSVCRT__call_atexit(void)
  29 {
  30   /* Note: should only be called with the exit lock held */
  31   TRACE("%d atext functions to call\n", MSVCRT_atexit_registered);
  32   /* Last registered gets executed first */
  33   while (MSVCRT_atexit_registered > 0)
  34   {
  35     MSVCRT_atexit_registered--;
  36     TRACE("next is %p\n",MSVCRT_atexit_table[MSVCRT_atexit_registered]);
  37     if (MSVCRT_atexit_table[MSVCRT_atexit_registered])
  38       (*MSVCRT_atexit_table[MSVCRT_atexit_registered])();
  39     TRACE("returned\n");
  40   }
  41 }
  42
  43 /*********************************************************************
  44  *              __dllonexit (MSVCRT.@)
  45  */
  46 _onexit_t __dllonexit(_onexit_t func, _onexit_t **start, _onexit_t **end)
  47 {
  48   _onexit_t *tmp;
  49   int len;
  50
  51   TRACE("(%p,%p,%p)\n", func, start, end);
  52
  53   if (!start || !*start || !end || !*end)
  54   {
  55    FIXME("bad table\n");
  56    return NULL;
  57   }
  58
  59   len = (*end - *start);
  60
  61   TRACE("table start %p-%p, %d entries\n", *start, *end, len);
  62
  63   if (++len <= 0)
  64     return NULL;
  65
  66   tmp = (_onexit_t *)MSVCRT_realloc(*start, len * sizeof(tmp));
  67   if (!tmp)
  68     return NULL;
  69   *start = tmp;
  70   *end = tmp + len;
  71   tmp[len - 1] = func;
  72   TRACE("new table start %p-%p, %d entries\n", *start, *end, len);
  73   return func;
  74 }
  75
  76 /*********************************************************************
  77  *              _exit (MSVCRT.@)
  78  */
  79 void MSVCRT__exit(int exitcode)
  80 {
  81   TRACE("(%d)\n", exitcode);
  82   ExitProcess(exitcode);
  83 }
  84
  85 /*********************************************************************
  86  *              _amsg_exit (MSVCRT.@)
  87  */
  88 void MSVCRT__amsg_exit(int errnum)
  89 {
  90   TRACE("(%d)\n", errnum);
  91   /* FIXME: text for the error number. */
  92   if (MSVCRT_app_type == 2)
  93   {
  94     /* FIXME: MsgBox */
  95   }
  96   _cprintf("\nruntime error R60%d\n",errnum);
  97   MSVCRT__exit(255);
  98 }
  99
 100 /*********************************************************************
 101  *              abort (MSVCRT.@)
 102  */
 103 void MSVCRT_abort(void)
 104 {
 105   TRACE("(void)\n");
 106   if (MSVCRT_app_type == 2)
 107   {
 108     /* FIXME: MsgBox */
 109   }
 110   _cputs("\nabnormal program termination\n");
 111   MSVCRT__exit(3);
 112 }
 113
 114 /*********************************************************************
 115  *              _assert (MSVCRT.@)
 116  */
 117 void MSVCRT__assert(const char* str, const char* file, unsigned int line)
 118 {
 119   TRACE("(%s,%s,%d)\n",str,file,line);
 120   if (MSVCRT_app_type == 2)
 121   {
 122     /* FIXME: MsgBox */
 123   }
 124   _cprintf("Assertion failed: %s, file %s, line %d\n\n",str,file, line);
 125   MSVCRT_abort();
 126 }
 127
 128 /*********************************************************************
 129  *              _c_exit (MSVCRT.@)
 130  */
 131 void MSVCRT__c_exit(void)
 132 {
 133   TRACE("(void)\n");
 134   /* All cleanup is done on DLL detach; Return to caller */
 135 }
 136
 137 /*********************************************************************
 138  *              _cexit (MSVCRT.@)
 139  */
 140 void MSVCRT__cexit(void)
 141 {
 142   TRACE("(void)\n");
 143   /* All cleanup is done on DLL detach; Return to caller */
 144 }
 145
 146 /*********************************************************************
 147  *              _onexit (MSVCRT.@)
 148  */
 149 _onexit_t _onexit(_onexit_t func)
 150 {
 151   TRACE("(%p)\n",func);
 152
 153   if (!func)
 154     return NULL;
 155
 156   LOCK_EXIT;
 157   if (MSVCRT_atexit_registered > MSVCRT_atexit_table_size - 1)
 158   {
 159     _onexit_t *newtable;
 160     TRACE("expanding table\n");
 161     newtable = MSVCRT_calloc(sizeof(void *),MSVCRT_atexit_table_size + 32);
 162     if (!newtable)
 163     {
 164       TRACE("failed!\n");
 165       UNLOCK_EXIT;
 166       return NULL;
 167     }
 168     memcpy (newtable, MSVCRT_atexit_table, MSVCRT_atexit_table_size);
 169     MSVCRT_atexit_table_size += 32;
 170     if (MSVCRT_atexit_table)
 171       MSVCRT_free (MSVCRT_atexit_table);
 172     MSVCRT_atexit_table = newtable;
 173   }
 174   MSVCRT_atexit_table[MSVCRT_atexit_registered] = func;
 175   MSVCRT_atexit_registered++;
 176   UNLOCK_EXIT;
 177   return func;
 178 }
 179
 180 /*********************************************************************
 181  *              exit (MSVCRT.@)
 182  */
 183 void MSVCRT_exit(int exitcode)
 184 {
 185   TRACE("(%d)\n",exitcode);
 186   LOCK_EXIT;
 187   __MSVCRT__call_atexit();
 188   UNLOCK_EXIT;
 189   ExitProcess(exitcode);
 190 }
 191
 192 /*********************************************************************
 193  *              atexit (MSVCRT.@)
 194  */
 195 int MSVCRT_atexit(_onexit_t func)
 196 {
 197   TRACE("(%p)\n", func);
 198   return _onexit(func) == func ? 0 : -1;
 199 }
 200
 201 /*********************************************************************
 202  *              _purecall (MSVCRT.@)
 203  */
 204 void _purecall(void)
 205 {
 206   TRACE("(void)\n");
 207   MSVCRT__amsg_exit( 25 );
 208 }