123 lines
2.2 KiB
C
123 lines
2.2 KiB
C
/*
|
|
FUNCTION
|
|
<<reent>>---definition of impure data.
|
|
|
|
INDEX
|
|
reent
|
|
|
|
DESCRIPTION
|
|
This module defines the impure data area used by the
|
|
non-reentrant functions, such as strtok.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <reent.h>
|
|
|
|
#ifdef _REENT_ONLY
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
#define REENTRANT_SYSCALLS_PROVIDED
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
|
|
/* We use the errno variable used by the system dependent layer. */
|
|
#undef errno
|
|
int errno;
|
|
|
|
#endif
|
|
|
|
/* Interim cleanup code */
|
|
|
|
void
|
|
cleanup_glue (ptr, glue)
|
|
struct _reent *ptr;
|
|
struct _glue *glue;
|
|
{
|
|
/* Have to reclaim these in reverse order: */
|
|
if (glue->_next)
|
|
cleanup_glue (ptr, glue->_next);
|
|
|
|
_free_r (ptr, glue);
|
|
}
|
|
|
|
void
|
|
_reclaim_reent (ptr)
|
|
struct _reent *ptr;
|
|
{
|
|
if (ptr != _impure_ptr)
|
|
{
|
|
/* used by mprec routines. */
|
|
if (ptr->_freelist)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 15 /* _Kmax */; i++)
|
|
{
|
|
struct _Bigint *thisone, *nextone;
|
|
|
|
nextone = ptr->_freelist[i];
|
|
while (nextone)
|
|
{
|
|
thisone = nextone;
|
|
nextone = nextone->_next;
|
|
_free_r (ptr, thisone);
|
|
}
|
|
}
|
|
|
|
_free_r (ptr, ptr->_freelist);
|
|
}
|
|
|
|
/* atexit stuff */
|
|
if ((ptr->_atexit) && (ptr->_atexit != &ptr->_atexit0))
|
|
{
|
|
struct _atexit *p, *q;
|
|
for (p = ptr->_atexit; p != &ptr->_atexit0;)
|
|
{
|
|
q = p;
|
|
p = p->_next;
|
|
_free_r (ptr, q);
|
|
}
|
|
}
|
|
|
|
if (ptr->_cvtbuf)
|
|
_free_r (ptr, ptr->_cvtbuf);
|
|
|
|
if (ptr->__sdidinit)
|
|
{
|
|
/* cleanup won't reclaim memory 'coz usually it's run
|
|
before the program exits, and who wants to wait for that? */
|
|
ptr->__cleanup (ptr);
|
|
|
|
if (ptr->__sglue._next)
|
|
cleanup_glue (ptr, ptr->__sglue._next);
|
|
}
|
|
|
|
/* Malloc memory not reclaimed; no good way to return memory anyway. */
|
|
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Do atexit() processing and cleanup
|
|
*
|
|
* NOTE: This is to be executed at task exit. It does not tear anything
|
|
* down which is used on a global basis.
|
|
*/
|
|
|
|
void
|
|
_wrapup_reent(struct _reent *ptr)
|
|
{
|
|
register struct _atexit *p;
|
|
register int n;
|
|
|
|
if (ptr == 0)
|
|
ptr = _REENT;
|
|
|
|
for (p = ptr->_atexit; p; p = p->_next)
|
|
for (n = p->_ind; --n >= 0;)
|
|
(*p->_fns[n]) ();
|
|
if (ptr->__cleanup)
|
|
(*ptr->__cleanup) (ptr);
|
|
}
|
|
|