libogc/newlibc.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include <sys/reent.h>
   4 #include "sys_state.h"
   5 #include "lwp_threads.h"
   6
   7 int libc_reentrant;
   8 struct _reent libc_globl_reent;
   9
  10 extern void _wrapup_reent(struct _reent *);
  11 extern void _reclaim_reent(struct _reent *);
  12
  13 int __libc_create_hook(lwp_cntrl *curr_thr,lwp_cntrl *create_thr)
  14 {
  15         create_thr->libc_reent = NULL;
  16         return 1;
  17 }
  18
  19 int __libc_start_hook(lwp_cntrl *curr_thr,lwp_cntrl *start_thr)
  20 {
  21         struct _reent *ptr;
  22
  23         ptr = (struct _reent*)calloc(1,sizeof(struct _reent));
  24         if(!ptr) abort();
  25
  26 #ifdef __GNUC__
  27         _REENT_INIT_PTR((ptr));
  28 #endif
  29
  30         start_thr->libc_reent = ptr;
  31         return 1;
  32 }
  33
  34 int __libc_delete_hook(lwp_cntrl *curr_thr, lwp_cntrl *delete_thr)
  35 {
  36         struct _reent *ptr;
  37
  38         if(curr_thr==delete_thr)
  39                 ptr = _REENT;
  40         else
  41                 ptr = (struct _reent*)delete_thr->libc_reent;
  42
  43         if(ptr && ptr!=&libc_globl_reent) {
  44                 _wrapup_reent(ptr);
  45                 _reclaim_reent(ptr);
  46                 free(ptr);
  47         }
  48         delete_thr->libc_reent = 0;
  49
  50         if(curr_thr==delete_thr) _REENT = 0;
  51
  52         return 1;
  53 }
  54
  55 void __libc_init(int reentrant)
  56 {
  57         libc_globl_reent = (struct _reent)_REENT_INIT((libc_globl_reent));
  58         _REENT = &libc_globl_reent;
  59
  60         if(reentrant) {
  61                 __lwp_thread_setlibcreent((void*)&_REENT);
  62                 libc_reentrant = reentrant;
  63         }
  64 }
  65
  66 void __libc_wrapup()
  67 {
  68         if(!__sys_state_up(__sys_state_get())) return;
  69         if(_REENT!=&libc_globl_reent) {
  70                 _wrapup_reent(&libc_globl_reent);
  71                 _REENT = &libc_globl_reent;
  72         }
  73 }
  74
  75