Rev 2265 | Rev 2330 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2260 | hudecek | 1 | /* |
| 2 | * Copyright (c) 2007 Jan Hudecek |
||
| 3 | * Copyright (c) 2006 Jakub Jermar |
||
| 4 | * All rights reserved. |
||
| 5 | * |
||
| 6 | * Redistribution and use in source and binary forms, with or without |
||
| 7 | * modification, are permitted provided that the following conditions |
||
| 8 | * are met: |
||
| 9 | * |
||
| 10 | * - Redistributions of source code must retain the above copyright |
||
| 11 | * notice, this list of conditions and the following disclaimer. |
||
| 12 | * - Redistributions in binary form must reproduce the above copyright |
||
| 13 | * notice, this list of conditions and the following disclaimer in the |
||
| 14 | * documentation and/or other materials provided with the distribution. |
||
| 15 | * - The name of the author may not be used to endorse or promote products |
||
| 16 | * derived from this software without specific prior written permission. |
||
| 17 | * |
||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 28 | */ |
||
| 29 | /** @addtogroup sync |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** @file |
||
| 33 | */ |
||
| 34 | |||
| 35 | #ifndef KERN_RCU_H_ |
||
| 36 | #define KERN_RCU_H_ |
||
| 37 | |||
| 38 | #include <arch/types.h> |
||
| 2265 | hudecek | 39 | #include <proc/tasklet.h> |
| 2260 | hudecek | 40 | #include <arch/barrier.h> |
| 2309 | hudecek | 41 | #include <arch.h> |
| 2260 | hudecek | 42 | #include <preemption.h> |
| 43 | |||
| 44 | |||
| 45 | /** Read lock for RCU protected pointer */ |
||
| 2309 | hudecek | 46 | #define rcu_read_lock() preemption_disable() |
| 2260 | hudecek | 47 | |
| 48 | /** Release of read lock for RCU protected pointer */ |
||
| 2309 | hudecek | 49 | #define rcu_read_unlock() preemption_enable() |
| 2260 | hudecek | 50 | |
| 51 | /** Dereferencing of an RCU protected pointer */ |
||
| 52 | #define rcu_dereference_pointer(p) (*(p)) |
||
| 53 | |||
| 54 | /** Assigning a value to an RCU protected pointer */ |
||
| 2309 | hudecek | 55 | #define rcu_assign_pointer(p, newp) {write_barrier(); (p)=(newp);} |
| 2260 | hudecek | 56 | |
| 57 | void rcu_init(void); |
||
| 58 | void rcu_synchronize(void); |
||
| 59 | void rcu_synchronize_callback_function(void* waitq); |
||
| 60 | void rcu_sync_callback(void (*func)(void* data), void* data); |
||
| 2309 | hudecek | 61 | void rcu_tasklet(void* data); |
| 62 | inline void rcu_passQS(void); |
||
| 63 | void rcu_run_callbacks(void); |
||
| 64 | |||
| 2260 | hudecek | 65 | #endif |