onexit.c File Reference

#include <process.h>
#include "msvcrt.h"
#include "mtdll.h"

Include dependency graph for onexit.c:

Go to the source code of this file.

Functions
int __cdecl	_initialize_onexit_table (_onexit_table_t *table)
int __cdecl	_register_onexit_function (_onexit_table_t *table, _onexit_t func)
int __cdecl	_execute_onexit_table (_onexit_table_t *table)

Function Documentation

_execute_onexit_table()

int __cdecl _execute_onexit_table

(

_onexit_table_t *

table

)

Definition at line 91 of file onexit.c.

{
    _PVFV *func;
    _onexit_table_t copy;
 
    if (!table)
        return -1;
 
    _lock(_EXIT_LOCK1);
    if (!table->_first || table->_first >= table->_last)
    {
        _unlock(_EXIT_LOCK1);
        return 0;
    }
    copy._first = table->_first;
    copy._last  = table->_last;
    copy._end   = table->_end;
    memset(table, 0, sizeof(*table));
    _initialize_onexit_table(table);
    _unlock(_EXIT_LOCK1);
 
    for (func = copy._last - 1; func >= copy._first; func--)
    {
        if (*func)
           (*func)();
    }
 
    HeapFree(GetProcessHeap(), 0, copy._first);
    return 0;
}

_initialize_onexit_table()

int __cdecl _initialize_onexit_table

(

_onexit_table_t *

table

)

Definition at line 34 of file onexit.c.

{
    if (!table)
        return -1;
 
    if (table->_first == table->_end)
        table->_last = table->_end = table->_first = NULL;
    return 0;
}

Referenced by _execute_onexit_table().

_register_onexit_function()

int __cdecl _register_onexit_function	(	_onexit_table_t *	table,
		_onexit_t	func
	)

Definition at line 48 of file onexit.c.

{
    if (!table)
        return -1;
 
    _lock(_EXIT_LOCK1);
    if (!table->_first)
    {
        table->_first = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 32 * sizeof(void *));
        if (!table->_first)
        {
            _unlock(_EXIT_LOCK1);
            return -1;
        }
        table->_last = table->_first;
        table->_end = table->_first + 32;
    }
 
    /* grow if full */
    if (table->_last == table->_end)
    {
        int len = table->_end - table->_first;
        _PVFV *tmp = HeapReAlloc(GetProcessHeap(), 0, table->_first, 2 * len * sizeof(void *));
        if (!tmp)
        {
            _unlock(_EXIT_LOCK1);
            return -1;
        }
        table->_first = tmp;
        table->_end = table->_first + 2 * len;
        table->_last = table->_first + len;
    }
 
    *table->_last = (_PVFV)func;
    table->_last++;
    _unlock(_EXIT_LOCK1);
    return 0;
}