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 35 extern "C" { 36 #endif 37 38 /* these are private to the library */ 39 extern int primary_link_map; 40 extern int _private_mutex_init(mutex_t *, int, void *); 41 extern int _private_mutex_destroy(mutex_t *); 42 extern int _private_mutex_lock(mutex_t *); 43 extern int _private_mutex_trylock(mutex_t *); 44 extern int _private_mutex_unlock(mutex_t *); 45 extern void lmutex_lock(mutex_t *); 46 extern void lmutex_unlock(mutex_t *); 47 extern int __rwlock_init(rwlock_t *, int, void *); 48 extern int __rwlock_destroy(rwlock_t *); 49 extern int __rw_rdlock(rwlock_t *); 50 extern int __rw_wrlock(rwlock_t *); 51 extern int __rw_tryrdlock(rwlock_t *); 52 extern int __rw_trywrlock(rwlock_t *); 53 extern int __rw_unlock(rwlock_t *); 54 extern void lrw_rdlock(rwlock_t *); 55 extern void lrw_wrlock(rwlock_t *); 56 extern void lrw_unlock(rwlock_t *); 57 extern void sig_mutex_lock(mutex_t *); 58 extern void sig_mutex_unlock(mutex_t *); 59 extern int sig_mutex_trylock(mutex_t *); 60 extern int sig_cond_wait(cond_t *, mutex_t *); 61 extern int sig_cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); 62 extern void cancel_safe_mutex_lock(mutex_t *); 63 extern void cancel_safe_mutex_unlock(mutex_t *); 64 extern int cancel_safe_mutex_trylock(mutex_t *); 65 extern int cancel_active(void); 66 67 /* the private libc thread-safe allocator */ 68 extern void *lmalloc(size_t); 69 extern void lfree(void *, size_t); 70 71 /* the rest are public functions */ 72 extern int _mutex_init(mutex_t *, int, void *); 73 extern int _mutex_destroy(mutex_t *); 74 extern int _mutex_lock(mutex_t *); 75 extern int _mutex_trylock(mutex_t *); 76 extern int _mutex_unlock(mutex_t *); 77 extern int __mutex_init(mutex_t *, int, void *); 78 extern int __mutex_destroy(mutex_t *); 79 extern int __mutex_lock(mutex_t *); 80 extern int __mutex_trylock(mutex_t *); 81 extern int __mutex_unlock(mutex_t *); 82 83 extern int _cond_init(cond_t *, int, void *); 84 extern int _cond_destroy(cond_t *); 85 extern int __cond_wait(cond_t *, mutex_t *); 86 extern int __cond_timedwait(cond_t *, mutex_t *, const timespec_t *); 87 extern int __cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); 88 extern int _cond_signal(cond_t *); 89 extern int _cond_broadcast(cond_t *); 90 91 extern int _rwlock_init(rwlock_t *, int, void *); 92 extern int _rwlock_destroy(rwlock_t *); 93 extern int _rw_rdlock(rwlock_t *); 94 extern int _rw_wrlock(rwlock_t *); 95 extern int _rw_tryrdlock(rwlock_t *); 96 extern int _rw_trywrlock(rwlock_t *); 97 extern int _rw_unlock(rwlock_t *); 98 99 extern int _thr_main(void); 100 extern thread_t _thr_self(void); 101 extern int _thrp_cancelled(void); 102 extern void _thr_exit(void *); 103 extern size_t _thr_min_stack(void); 104 extern int _thr_kill(thread_t, int); 105 extern int _thr_create(void *, size_t, void *(*)(void *), void *, long, 106 thread_t *); 107 extern int _thr_keycreate(thread_key_t *, void (*)(void *)); 108 extern int _thr_keycreate_once(thread_key_t *, void (*)(void *)); 109 extern int _thr_setspecific(thread_key_t, void *); 110 extern int _thr_getspecific(thread_key_t, void **); 111 extern void *_pthread_getspecific(thread_key_t); 112 113 #if defined(THREAD_DEBUG) 114 extern void assert_no_libc_locks_held(void); 115 #else 116 #define assert_no_libc_locks_held() 117 #endif 118 119 #define _FWRITE _fwrite_unlocked 120 #define FILENO(s) _fileno(s) 121 #define FERROR(s) ferror(s) 122 #define GETC(s) _getc_unlocked(s) 123 #define UNGETC(c, s) _ungetc_unlocked(c, s) 124 #define PUTC(c, s) _putc_unlocked(c, s) 125 #define GETWC(s) getwc(s) 126 #define PUTWC(c, s) putwc(c, s) 127 128 /* 129 * Cheap check to tell if stdio needs to lock for MT progs. 130 * Referenced directly in port/stdio/flush.c and FLOCKFILE and 131 * FUNLOCKFILE macros. __libc_threaded gets set to 1 when the first 132 * thread (beyond the main thread) is created in _thrp_create(). 133 */ 134 extern int __libc_threaded; 135 136 #define FILELOCKING(iop) (GET_IONOLOCK(iop) == 0) 137 138 #define FLOCKFILE(lk, iop) \ 139 { \ 140 if (__libc_threaded && FILELOCKING(iop)) \ 141 lk = _flockget((iop)); \ 142 else \ 143 lk = NULL; \ 144 } 145 146 #define FUNLOCKFILE(lk) \ 147 { \ 148 if (lk != NULL) \ 149 _flockrel(lk); \ 150 } 151 152 #define FLOCKRETURN(iop, ret) \ 153 { int r; \ 154 rmutex_t *lk; \ 155 FLOCKFILE(lk, iop); \ 156 r = (ret); \ 157 FUNLOCKFILE(lk); \ 158 return (r); \ 159 } 160 161 #ifdef __cplusplus 162 } 163 #endif 164 165 #endif /* _MTLIB_H */ 166