atonexit.c File Reference

#include <oscalls.h>
#include <internal.h>
#include <stdlib.h>
#include <crtdefs.h>
#include <limits.h>

Include dependency graph for atonexit.c:

Go to the source code of this file.

Macros
#define	_DLL
#define	_EXIT_LOCK1   8

Functions
void __cdecl	_lock (int _File)
void __cdecl	_unlock (int _File)
_onexit_t __cdecl	__dllonexit (_onexit_t, _PVFV **, _PVFV **)
	_onexit_t (__cdecl *__MINGW_IMP_SYMBOL(_onexit))(_onexit_t func)
void	__call_atexit (void)
_onexit_t __cdecl	_onexit (_onexit_t func)
int __cdecl	atexit (_PVFV func)

Variables
_PVFV *	__onexitbegin
_PVFV *	__onexitend

Macro Definition Documentation

_DLL

#define _DLL

This file has no copyright assigned and is placed in the Public Domain. This file is part of the w64 mingw-runtime package. No warranty is given; refer to the file DISCLAIMER.PD within this package.

Definition at line 8 of file atonexit.c.

_EXIT_LOCK1

#define _EXIT_LOCK1   8

Definition at line 18 of file atonexit.c.

Function Documentation

__call_atexit()

void __call_atexit

(

void

)

Definition at line 30 of file atonexit.c.

{
    /* Note: should only be called with the exit lock held */
    _PVFV *first, *last;
 
    if (!__onexitbegin)
        return;
 
    first =  (_PVFV *)_decode_pointer(__onexitbegin);
    last = (_PVFV *)_decode_pointer(__onexitend);
 
    while (--last >= first)
        if (*last)
            (**last)();
 
    free(first);
 
    __onexitbegin = __onexitend = NULL;
}

Referenced by _cexit().

__dllonexit()

_onexit_t __cdecl __dllonexit	(	_onexit_t	,
		_PVFV **	,
		_PVFV **
	)

Referenced by _onexit().

_lock()

void __cdecl _lock

(

int

_File

)

Definition at line 97 of file lock.c.

{
  TRACE( "(%d)\n", locknum );
 
  /* If the lock doesn't exist yet, create it */
  if( lock_table[ locknum ].bInit == FALSE )
  {
    /* Lock while we're changing the lock table */
    _lock( _LOCKTAB_LOCK );
 
    /* Check again if we've got a bit of a race on lock creation */
    if( lock_table[ locknum ].bInit == FALSE )
    {
      TRACE( ": creating lock #%d\n", locknum );
      msvcrt_initialize_mlock( locknum );
    }
 
    /* Unlock ourselves */
    _unlock( _LOCKTAB_LOCK );
  }
 
  EnterCriticalSection( &(lock_table[ locknum ].crit) );
}

Referenced by _onexit().

_onexit()

_onexit_t __cdecl _onexit

(

_onexit_t

func

)

Definition at line 53 of file atonexit.c.

{
    _PVFV *onexitbegin;
    _PVFV *onexitend;
    _onexit_t retval;
 
#ifndef CRTDLL
    if (__onexitbegin == (_PVFV *) -1)
        return (* __MINGW_IMP_SYMBOL(_onexit)) (func);
#endif
 
    _lock (_EXIT_LOCK1);
 
    if (!__onexitbegin)
    {
        /* First time we are called. Initialize our array */
        onexitbegin = calloc(1, sizeof(*onexitbegin));
        if (!onexitbegin)
        {
            _unlock(_EXIT_LOCK1);
            return NULL;
        }
        onexitend = onexitbegin;
    }
    else
    {
        onexitbegin = (_PVFV *) _decode_pointer (__onexitbegin);
        onexitend = (_PVFV *) _decode_pointer (__onexitend);
    }
 
    retval = __dllonexit (func, &onexitbegin, &onexitend);
 
    if (retval != NULL)
    {
        /* Update our globals in case of success */
        __onexitbegin = (_PVFV *) _encode_pointer (onexitbegin);
        __onexitend = (_PVFV *) _encode_pointer (onexitend);
    }
 
    _unlock (_EXIT_LOCK1);
    return retval;
}

Referenced by _onexit(), and atexit().

_onexit_t()

_onexit_t

(

__cdecl *

__MINGW_IMP_SYMBOL_onexit

)

_unlock()

void __cdecl _unlock

(

int

_File

)

Definition at line 126 of file lock.c.

{
  TRACE( "(%d)\n", locknum );
 
  LeaveCriticalSection( &(lock_table[ locknum ].crit) );
}

Referenced by _onexit().

atexit()

int __cdecl atexit

(

_PVFV

func

)

Definition at line 97 of file atonexit.c.

{
  return (_onexit((_onexit_t)func) == NULL) ? -1 : 0;
}

Variable Documentation

__onexitbegin

_PVFV* __onexitbegin

Definition at line 23 of file atonexit.c.

Referenced by __call_atexit(), and _onexit().

__onexitend

_PVFV* __onexitend

Definition at line 24 of file atonexit.c.

Referenced by __call_atexit(), and _onexit().