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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [reent/] [reent.c] - Blame information for rev 179

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/*
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
_DEFUN (cleanup_glue, (ptr, glue),
     struct _reent *ptr _AND
     struct _glue *glue)
{
  /* Have to reclaim these in reverse order: */
  if (glue->_next)
    cleanup_glue (ptr, glue->_next);
 
  _free_r (ptr, glue);
}
 
void
_DEFUN (_reclaim_reent, (ptr),
     struct _reent *ptr)
{
  if (ptr != _impure_ptr)
    {
      /* used by mprec routines. */
#ifdef _REENT_SMALL
      if (ptr->_mp)     /* don't bother allocating it! */
#endif
      if (_REENT_MP_FREELIST(ptr))
        {
          int i;
          for (i = 0; i < 15 /* _Kmax */; i++)
            {
              struct _Bigint *thisone, *nextone;
 
              nextone = _REENT_MP_FREELIST(ptr)[i];
              while (nextone)
                {
                  thisone = nextone;
                  nextone = nextone->_next;
                  _free_r (ptr, thisone);
                }
            }
 
          _free_r (ptr, _REENT_MP_FREELIST(ptr));
        }
      if (_REENT_MP_RESULT(ptr))
        _free_r (ptr, _REENT_MP_RESULT(ptr));
 
#ifdef _REENT_SMALL
      if (ptr->_emergency)
        _free_r (ptr, ptr->_emergency);
      if (ptr->_mp)
        _free_r (ptr, ptr->_mp);
      if (ptr->_r48)
        _free_r (ptr, ptr->_r48);
      if (ptr->_localtime_buf)
        _free_r (ptr, ptr->_localtime_buf);
      if (ptr->_asctime_buf)
        _free_r (ptr, ptr->_asctime_buf);
      if (ptr->_atexit->_on_exit_args_ptr)
        _free_r (ptr, ptr->_atexit->_on_exit_args_ptr);
#else
      /* 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);
            }
        }
#endif
 
      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
_DEFUN (_wrapup_reent, (ptr), struct _reent *ptr)
{
  register struct _atexit *p;
  register int n;
 
  if (ptr == 0)
      ptr = _REENT;
 
#ifdef _REENT_SMALL
  for (p = &ptr->_atexit, n = p->_ind; --n >= 0;)
    (*p->_fns[n]) ();
#else
  for (p = ptr->_atexit; p; p = p->_next)
    for (n = p->_ind; --n >= 0;)
      (*p->_fns[n]) ();
#endif
  if (ptr->__cleanup)
    (*ptr->__cleanup) (ptr);
}
 

Line No.	Rev	Author	Line
1	148	jeremybenn	`/*`
2			`FUNCTION`
3			`<<reent>>---definition of impure data.`
4
5			`INDEX`
6			`reent`
7
8			`DESCRIPTION`
9			`This module defines the impure data area used by the`
10			`non-reentrant functions, such as strtok.`
11			`*/`
12
13			`#include <stdlib.h>`
14			`#include <reent.h>`
15
16			`#ifdef _REENT_ONLY`
17			`#ifndef REENTRANT_SYSCALLS_PROVIDED`
18			`#define REENTRANT_SYSCALLS_PROVIDED`
19			`#endif`
20			`#endif`
21
22			`#ifndef REENTRANT_SYSCALLS_PROVIDED`
23
24			`/* We use the errno variable used by the system dependent layer. */`
25			`#undef errno`
26			`int errno;`
27
28			`#endif`
29
30			`/* Interim cleanup code */`
31
32			`void`
33			`_DEFUN (cleanup_glue, (ptr, glue),`
34			`struct _reent *ptr _AND`
35			`struct _glue *glue)`
36			`{`
37			`/* Have to reclaim these in reverse order: */`
38			`if (glue->_next)`
39			`cleanup_glue (ptr, glue->_next);`
40
41			`_free_r (ptr, glue);`
42			`}`
43
44			`void`
45			`_DEFUN (_reclaim_reent, (ptr),`
46			`struct _reent *ptr)`
47			`{`
48			`if (ptr != _impure_ptr)`
49			`{`
50			`/* used by mprec routines. */`
51			`#ifdef _REENT_SMALL`
52			`if (ptr->_mp) /* don't bother allocating it! */`
53			`#endif`
54			`if (_REENT_MP_FREELIST(ptr))`
55			`{`
56			`int i;`
57			`for (i = 0; i < 15 /* _Kmax */; i++)`
58			`{`
59			`struct _Bigint thisone, nextone;`
60
61			`nextone = _REENT_MP_FREELIST(ptr)[i];`
62			`while (nextone)`
63			`{`
64			`thisone = nextone;`
65			`nextone = nextone->_next;`
66			`_free_r (ptr, thisone);`
67			`}`
68			`}`
69
70			`_free_r (ptr, _REENT_MP_FREELIST(ptr));`
71			`}`
72			`if (_REENT_MP_RESULT(ptr))`
73			`_free_r (ptr, _REENT_MP_RESULT(ptr));`
74
75			`#ifdef _REENT_SMALL`
76			`if (ptr->_emergency)`
77			`_free_r (ptr, ptr->_emergency);`
78			`if (ptr->_mp)`
79			`_free_r (ptr, ptr->_mp);`
80			`if (ptr->_r48)`
81			`_free_r (ptr, ptr->_r48);`
82			`if (ptr->_localtime_buf)`
83			`_free_r (ptr, ptr->_localtime_buf);`
84			`if (ptr->_asctime_buf)`
85			`_free_r (ptr, ptr->_asctime_buf);`
86			`if (ptr->_atexit->_on_exit_args_ptr)`
87			`_free_r (ptr, ptr->_atexit->_on_exit_args_ptr);`
88			`#else`
89			`/* atexit stuff */`
90			`if ((ptr->_atexit) && (ptr->_atexit != &ptr->_atexit0))`
91			`{`
92			`struct _atexit p, q;`
93			`for (p = ptr->_atexit; p != &ptr->_atexit0;)`
94			`{`
95			`q = p;`
96			`p = p->_next;`
97			`_free_r (ptr, q);`
98			`}`
99			`}`
100			`#endif`
101
102			`if (ptr->_cvtbuf)`
103			`_free_r (ptr, ptr->_cvtbuf);`
104
105			`if (ptr->__sdidinit)`
106			`{`
107			`/* cleanup won't reclaim memory 'coz usually it's run`
108			`before the program exits, and who wants to wait for that? */`
109			`ptr->__cleanup (ptr);`
110
111			`if (ptr->__sglue._next)`
112			`cleanup_glue (ptr, ptr->__sglue._next);`
113			`}`
114
115			`/* Malloc memory not reclaimed; no good way to return memory anyway. */`
116
117			`}`
118			`}`
119
120			`/*`
121			`* Do atexit() processing and cleanup`
122			`*`
123			`* NOTE: This is to be executed at task exit. It does not tear anything`
124			`* down which is used on a global basis.`
125			`*/`
126
127			`void`
128			`_DEFUN (_wrapup_reent, (ptr), struct _reent *ptr)`
129			`{`
130			`register struct _atexit *p;`
131			`register int n;`
132
133			`if (ptr == 0)`
134			`ptr = _REENT;`
135
136			`#ifdef _REENT_SMALL`
137			`for (p = &ptr->_atexit, n = p->_ind; --n >= 0;)`
138			`(*p->_fns[n]) ();`
139			`#else`
140			`for (p = ptr->_atexit; p; p = p->_next)`
141			`for (n = p->_ind; --n >= 0;)`
142			`(*p->_fns[n]) ();`
143			`#endif`
144			`if (ptr->__cleanup)`
145			`(*ptr->__cleanup) (ptr);`
146			`}`
147

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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [reent/] [reent.c] - Blame information for rev 179