library/errno.c

   1 /*
   2  * Wine library reentrant errno support
   3  *
   4  * Copyright 1998 Alexandre Julliard
   5  */
   6
   7 /* Get pointers to the static errno and h_errno variables used by Xlib. This
   8    must be done before including <errno.h> makes the variables invisible.  */
   9 static int *default_errno_location(void)
  10 {
  11     extern int errno;
  12     return &errno;
  13 }
  14
  15 static int *default_h_errno_location(void)
  16 {
  17     extern int h_errno;
  18     return &h_errno;
  19 }
  20
  21 int* (*wine_errno_location)(void) = default_errno_location;
  22 int* (*wine_h_errno_location)(void) = default_h_errno_location;
  23
  24 #include "config.h"
  25
  26 /***********************************************************************
  27  *           __errno_location/__error/___errno
  28  *
  29  * Get the per-thread errno location.
  30  */
  31 #ifdef ERRNO_LOCATION
  32 int *ERRNO_LOCATION(void)
  33 {
  34     return wine_errno_location();
  35 }
  36 #endif /* ERRNO_LOCATION */
  37
  38 /***********************************************************************
  39  *           __h_errno_location
  40  *
  41  * Get the per-thread h_errno location.
  42  */
  43 int *__h_errno_location(void)
  44 {
  45     return wine_h_errno_location();
  46 }