2 * Copyright (c) 2018, Matthew Macy <mmacy@freebsd.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
10 * 2. Neither the name of Matthew Macy nor the names of its
11 * contributors may be used to endorse or promote products derived from
12 * this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
33 typedef struct epoch *epoch_t;
35 struct epoch_context {
37 } __aligned(sizeof(void *));
39 typedef struct epoch_context *epoch_context_t;
41 epoch_t epoch_alloc(void);
42 void epoch_free(epoch_t epoch);
43 void epoch_enter(epoch_t epoch);
44 void epoch_exit(epoch_t epoch);
45 void epoch_enter_nopreempt(epoch_t epoch);
46 void epoch_exit_nopreempt(epoch_t epoch);
47 void epoch_wait(epoch_t epoch);
48 void epoch_call(epoch_t epoch, epoch_context_t ctx, void (*callback) (epoch_context_t));