lib/libc/include/libc_private.h

   1 /*
   2  * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by John Birrell.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/lib/libc/include/libc_private.h,v 1.3 1999/08/27 23:59:47 peter Exp $
  33  * $DragonFly: src/lib/libc/include/libc_private.h,v 1.8 2008/06/01 19:27:32 dillon Exp $
  34  *
  35  * Private definitions for libc, libc_r and libpthread.
  36  *
  37  */
  38
  39 #ifndef _LIBC_PRIVATE_H_
  40 #define _LIBC_PRIVATE_H_
  41
  42 /*
  43  * This global flag is non-zero when a process has created one
  44  * or more threads. It is used to avoid calling locking functions
  45  * when they are not required.
  46  */
  47 extern int      __isthreaded;
  48
  49 /*
  50  * File lock contention is difficult to diagnose without knowing
  51  * where locks were set. Allow a debug library to be built which
  52  * records the source file and line number of each lock call.
  53  */
  54 #ifdef  _FLOCK_DEBUG
  55 #define _FLOCKFILE(x)   _flockfile_debug(x, __FILE__, __LINE__)
  56 #else
  57 #define _FLOCKFILE(x)   _flockfile(x)
  58 #endif
  59
  60 /*
  61  * Macros for locking and unlocking FILEs. These test if the
  62  * process is threaded to avoid locking when not required.
  63  */
  64 #define FLOCKFILE(fp)           if (__isthreaded) _FLOCKFILE(fp)
  65 #define FUNLOCKFILE(fp)         if (__isthreaded) _funlockfile(fp)
  66
  67 /*
  68  * Initialise TLS static programs
  69  */
  70 int __get_errno_GS_offset(void);
  71 void *__get_errno_GOT_ptr(void);
  72
  73 struct statfs;
  74 struct statvfs;
  75
  76 /*
  77  * This is a pointer in the C run-time startup code. It is used
  78  * by getprogname() and setprogname().
  79  */
  80 extern const char *__progname;
  81
  82 /*
  83  * Function to clean up streams, called from abort() and exit().
  84  */
  85 extern void (*__cleanup)(void);
  86
  87 /* execve() with PATH processing to implement posix_spawnp() */
  88 int _execvpe(const char *, char * const *, char * const *);
  89
  90 #endif /* _LIBC_PRIVATE_H_ */