1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _MTLIB_H 28#define _MTLIB_H 29 30#pragma ident "%Z%%M% %I% %E% SMI" 31 32#include <thread.h> 33 34#ifdef __cplusplus 35extern "C" { 36#endif 37 38/* these are private to the library */ 39extern int primary_link_map; 40extern void lmutex_lock(mutex_t *); 41extern void lmutex_unlock(mutex_t *); 42extern void lrw_rdlock(rwlock_t *); 43extern void lrw_wrlock(rwlock_t *); 44extern void lrw_unlock(rwlock_t *); 45extern void sig_mutex_lock(mutex_t *); 46extern void sig_mutex_unlock(mutex_t *); 47extern int sig_mutex_trylock(mutex_t *); 48extern int sig_cond_wait(cond_t *, mutex_t *); 49extern int sig_cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); 50extern void cancel_safe_mutex_lock(mutex_t *); 51extern void cancel_safe_mutex_unlock(mutex_t *); 52extern int cancel_safe_mutex_trylock(mutex_t *); 53extern int cancel_active(void); 54extern int _thrp_cancelled(void); 55 56/* the private libc thread-safe allocator */ 57extern void *lmalloc(size_t); 58extern void lfree(void *, size_t); 59 60#if defined(THREAD_DEBUG) 61extern void assert_no_libc_locks_held(void); 62#else 63#define assert_no_libc_locks_held() 64#endif 65 66#define _FWRITE _fwrite_unlocked 67#define FILENO(s) _fileno(s) 68#define FERROR(s) ferror(s) 69#define GETC(s) _getc_unlocked(s) 70#define UNGETC(c, s) _ungetc_unlocked(c, s) 71#define PUTC(c, s) _putc_unlocked(c, s) 72#define GETWC(s) getwc(s) 73#define PUTWC(c, s) putwc(c, s) 74 75/* 76 * Cheap check to tell if stdio needs to lock for MT progs. 77 * Referenced directly in port/stdio/flush.c and FLOCKFILE and 78 * FUNLOCKFILE macros. __libc_threaded gets set to 1 when the first 79 * thread (beyond the main thread) is created in _thrp_create(). 80 */ 81extern int __libc_threaded; 82 83#define FILELOCKING(iop) (GET_IONOLOCK(iop) == 0) 84 85#define FLOCKFILE(lk, iop) \ 86 { \ 87 if (__libc_threaded && FILELOCKING(iop)) \ 88 lk = _flockget((iop)); \ 89 else \ 90 lk = NULL; \ 91 } 92 93#define FUNLOCKFILE(lk) \ 94 { \ 95 if (lk != NULL) \ 96 _flockrel(lk); \ 97 } 98 99#define FLOCKRETURN(iop, ret) \ 100 { int r; \ 101 rmutex_t *lk; \ 102 FLOCKFILE(lk, iop); \ 103 r = (ret); \ 104 FUNLOCKFILE(lk); \ 105 return (r); \ 106 } 107 108#ifdef __cplusplus 109} 110#endif 111 112#endif /* _MTLIB_H */ 113