local.h

/*
 * Copyright (c) 1990, 2007 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *  %W% (UofMD/Berkeley) %G%
 */
 
/*
 * Information local to this implementation of stdio,
 * in particular, macros and private variables.
 */
 
#include <reent.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
 
#include <_ansi.h>
#ifdef __SCLE
#include <io.h>
#endif
 
extern u_char* _EXFUN(__sccl, (char*, u_char* fmt));
extern int _EXFUN(__svfscanf_r, (struct _reent*, FILE*, _CONST char*, va_list));
extern int _EXFUN(__ssvfscanf_r, (struct _reent*, FILE*, _CONST char*, va_list));
extern int _EXFUN(__svfiscanf_r, (struct _reent*, FILE*, _CONST char*, va_list));
extern int _EXFUN(__ssvfiscanf_r, (struct _reent*, FILE*, _CONST char*, va_list));
int _EXFUN(_svfprintf_r,
           (struct _reent*, FILE*, const char*, va_list)_ATTRIBUTE((__format__(__printf__, 3, 0))));
int _EXFUN(_svfiprintf_r,
           (struct _reent*, FILE*, const char*, va_list)_ATTRIBUTE((__format__(__printf__, 3, 0))));
extern FILE* _EXFUN(__sfp, (struct _reent*));
extern int _EXFUN(__sflags, (struct _reent*, _CONST char*, int*));
extern int _EXFUN(__srefill_r, (struct _reent*, FILE*));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__sread, (struct _reent*, void*, char*, int));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite, (struct _reent*, void*, const char*, int));
extern _fpos_t _EXFUN(__sseek, (struct _reent*, void*, _fpos_t, int));
extern int _EXFUN(__sclose, (struct _reent*, void*));
extern int _EXFUN(__stextmode, (int));
extern _VOID _EXFUN(__sinit, (struct _reent*));
extern _VOID _EXFUN(_cleanup_r, (struct _reent*));
extern _VOID _EXFUN(__smakebuf_r, (struct _reent*, FILE*));
extern int _EXFUN(_fwalk, (struct _reent*, int (*)(FILE*)));
extern int _EXFUN(_fwalk_reent, (struct _reent*, int (*)(struct _reent*, FILE*)));
struct _glue* _EXFUN(__sfmoreglue, (struct _reent*, int n));
extern int _EXFUN(__submore, (struct _reent*, FILE*));
 
#ifdef __LARGE64_FILES
extern _fpos64_t _EXFUN(__sseek64, (struct _reent*, void*, _fpos64_t, int));
extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite64, (struct _reent*, void*, const char*, int));
#endif
 
/* Called by the main entry point fns to ensure stdio has been initialized.  */
 
#ifdef _REENT_SMALL
#define CHECK_INIT(ptr, fp)                    \
  do {                                         \
    if ((ptr) && !(ptr)->__sdidinit)           \
      __sinit(ptr);                            \
    if ((fp) == (FILE*)&__sf_fake_stdin)       \
      (fp) = _stdin_r(ptr);                    \
    else if ((fp) == (FILE*)&__sf_fake_stdout) \
      (fp) = _stdout_r(ptr);                   \
    else if ((fp) == (FILE*)&__sf_fake_stderr) \
      (fp) = _stderr_r(ptr);                   \
  } while (0)
#else /* !_REENT_SMALL   */
#define CHECK_INIT(ptr, fp)          \
  do {                               \
    if ((ptr) && !(ptr)->__sdidinit) \
      __sinit(ptr);                  \
  } while (0)
#endif /* !_REENT_SMALL  */
 
#define CHECK_STD_INIT(ptr)          \
  do {                               \
    if ((ptr) && !(ptr)->__sdidinit) \
      __sinit(ptr);                  \
  } while (0)
 
/* Return true iff the given FILE cannot be written now.  */
 
#define cantwrite(ptr, fp) \
  ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && __swsetup_r(ptr, fp))
 
/* Test whether the given stdio file has an active ungetc buffer;
   release such a buffer, without restoring ordinary unread data.  */
 
#define HASUB(fp) ((fp)->_ub._base != NULL)
#define FREEUB(ptr, fp)                     \
  {                                         \
    if ((fp)->_ub._base != (fp)->_ubuf)     \
      _free_r(ptr, (char*)(fp)->_ub._base); \
    (fp)->_ub._base = NULL;                 \
  }
 
/* Test for an fgetline() buffer.  */
 
#define HASLB(fp) ((fp)->_lb._base != NULL)
#define FREELB(ptr, fp)                   \
  {                                       \
    _free_r(ptr, (char*)(fp)->_lb._base); \
    (fp)->_lb._base = NULL;               \
  }
 
/*
 * Set the orientation for a stream. If o > 0, the stream has wide-
 * orientation. If o < 0, the stream has byte-orientation.
 */
#define ORIENT(fp, ori)             \
  do {                              \
    if (!((fp)->_flags & __SORD)) { \
      (fp)->_flags |= __SORD;       \
      if (ori > 0)                  \
        (fp)->_flags2 |= __SWID;    \
      else                          \
        (fp)->_flags2 &= ~__SWID;   \
    }                               \
  } while (0)
 
/* WARNING: _dcvt is defined in the stdlib directory, not here!  */
 
char* _EXFUN(_dcvt, (struct _reent*, char*, double, int, int, char, int));
char* _EXFUN(_sicvt, (char*, short, char));
char* _EXFUN(_icvt, (char*, int, char));
char* _EXFUN(_licvt, (char*, long, char));
#ifdef __GNUC__
char* _EXFUN(_llicvt, (char*, long long, char));
#endif
 
#define CVT_BUF_SIZE 128
 
#define NDYNAMIC 4 /* add four more whenever necessary */
 
#ifdef __SINGLE_THREAD__
#define __sfp_lock_acquire()
#define __sfp_lock_release()
#define __sinit_lock_acquire()
#define __sinit_lock_release()
#else
_VOID _EXFUN(__sfp_lock_acquire, (_VOID));
_VOID _EXFUN(__sfp_lock_release, (_VOID));
_VOID _EXFUN(__sinit_lock_acquire, (_VOID));
_VOID _EXFUN(__sinit_lock_release, (_VOID));
#endif