| 1 | /*
|
|---|
| 2 | * Copyright (c) 2009 Jakub Jermar
|
|---|
| 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 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @addtogroup libc
|
|---|
| 30 | * @{
|
|---|
| 31 | */
|
|---|
| 32 | /** @file
|
|---|
| 33 | */
|
|---|
| 34 |
|
|---|
| 35 | #ifndef LIBC_FIBRIL_SYNC_H_
|
|---|
| 36 | #define LIBC_FIBRIL_SYNC_H_
|
|---|
| 37 |
|
|---|
| 38 | #include <async.h>
|
|---|
| 39 | #include <fibril.h>
|
|---|
| 40 | #include <adt/list.h>
|
|---|
| 41 | #include <libarch/tls.h>
|
|---|
| 42 |
|
|---|
| 43 | typedef struct {
|
|---|
| 44 | int counter;
|
|---|
| 45 | link_t waiters;
|
|---|
| 46 | } fibril_mutex_t;
|
|---|
| 47 |
|
|---|
| 48 | #define FIBRIL_MUTEX_INITIALIZE(name) \
|
|---|
| 49 | fibril_mutex_t name = { \
|
|---|
| 50 | .counter = 1, \
|
|---|
| 51 | .waiters = { \
|
|---|
| 52 | .prev = &name.waiters, \
|
|---|
| 53 | .next = &name.waiters, \
|
|---|
| 54 | } \
|
|---|
| 55 | }
|
|---|
| 56 |
|
|---|
| 57 | typedef struct {
|
|---|
| 58 | fibril_mutex_t fm;
|
|---|
| 59 | } fibril_rwlock_t;
|
|---|
| 60 |
|
|---|
| 61 | #define FIBRIL_RWLOCK_INITIALIZE(name) \
|
|---|
| 62 | fibril_rwlock_t name = { \
|
|---|
| 63 | .fm = { \
|
|---|
| 64 | .counter = 1, \
|
|---|
| 65 | .waiters = { \
|
|---|
| 66 | .prev = &name.fm.waiters, \
|
|---|
| 67 | .next = &name.fm.waiters, \
|
|---|
| 68 | } \
|
|---|
| 69 | } \
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | extern void fibril_mutex_initialize(fibril_mutex_t *);
|
|---|
| 73 | extern void fibril_mutex_lock(fibril_mutex_t *);
|
|---|
| 74 | extern bool fibril_mutex_trylock(fibril_mutex_t *);
|
|---|
| 75 | extern void fibril_mutex_unlock(fibril_mutex_t *);
|
|---|
| 76 |
|
|---|
| 77 | extern void fibril_rwlock_initialize(fibril_rwlock_t *);
|
|---|
| 78 | extern void fibril_rwlock_read_lock(fibril_rwlock_t *);
|
|---|
| 79 | extern void fibril_rwlock_write_lock(fibril_rwlock_t *);
|
|---|
| 80 | extern void fibril_rwlock_read_unlock(fibril_rwlock_t *);
|
|---|
| 81 | extern void fibril_rwlock_write_unlock(fibril_rwlock_t *);
|
|---|
| 82 |
|
|---|
| 83 | #endif
|
|---|
| 84 |
|
|---|
| 85 | /** @}
|
|---|
| 86 | */
|
|---|
