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 * Internal _*() functions (XXX add all of them) 69 */ 70 71 #ifdef _STDIO_H_ 72 int _fseeko(FILE *, __off_t, int); 73 #endif 74 75 /* 76 * Initialise TLS static programs 77 */ 78 int __get_errno_GS_offset(void); 79 void *__get_errno_GOT_ptr(void); 80 81 struct statfs; 82 struct statvfs; 83 84 /* 85 * This is a pointer in the C run-time startup code. It is used 86 * by getprogname() and setprogname(). 87 */ 88 extern const char *__progname; 89 90 /* 91 * Function to clean up streams, called from abort() and exit(). 92 */ 93 extern void (*__cleanup)(void); 94 95 #endif /* _LIBC_PRIVATE_H_ */ 96