ipc/chromium/src/third_party/libevent/evmap-internal.h@6474c204b198 (annotated)
ipc/chromium/src/third_party/libevent/evmap-internal.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson |
| michael@0 | 3 | * |
| michael@0 | 4 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | * modification, are permitted provided that the following conditions |
| michael@0 | 6 | * are met: |
| michael@0 | 7 | * 1. Redistributions of source code must retain the above copyright |
| michael@0 | 8 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| michael@0 | 10 | * notice, this list of conditions and the following disclaimer in the |
| michael@0 | 11 | * documentation and/or other materials provided with the distribution. |
| michael@0 | 12 | * 3. The name of the author may not be used to endorse or promote products |
| michael@0 | 13 | * derived from this software without specific prior written permission. |
| michael@0 | 14 | * |
| michael@0 | 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| michael@0 | 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| michael@0 | 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| michael@0 | 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| michael@0 | 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| michael@0 | 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| michael@0 | 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 25 | */ |
| michael@0 | 26 | #ifndef _EVMAP_H_ |
| michael@0 | 27 | #define _EVMAP_H_ |
| michael@0 | 28 | |
| michael@0 | 29 | /** @file evmap-internal.h |
| michael@0 | 30 | * |
| michael@0 | 31 | * An event_map is a utility structure to map each fd or signal to zero or |
| michael@0 | 32 | * more events. Functions to manipulate event_maps should only be used from |
| michael@0 | 33 | * inside libevent. They generally need to hold the lock on the corresponding |
| michael@0 | 34 | * event_base. |
| michael@0 | 35 | **/ |
| michael@0 | 36 | |
| michael@0 | 37 | struct event_base; |
| michael@0 | 38 | struct event; |
| michael@0 | 39 | |
| michael@0 | 40 | /** Initialize an event_map for use. |
| michael@0 | 41 | */ |
| michael@0 | 42 | void evmap_io_initmap(struct event_io_map* ctx); |
| michael@0 | 43 | void evmap_signal_initmap(struct event_signal_map* ctx); |
| michael@0 | 44 | |
| michael@0 | 45 | /** Remove all entries from an event_map. |
| michael@0 | 46 | |
| michael@0 | 47 | @param ctx the map to clear. |
| michael@0 | 48 | */ |
| michael@0 | 49 | void evmap_io_clear(struct event_io_map* ctx); |
| michael@0 | 50 | void evmap_signal_clear(struct event_signal_map* ctx); |
| michael@0 | 51 | |
| michael@0 | 52 | /** Add an IO event (some combination of EV_READ or EV_WRITE) to an |
| michael@0 | 53 | event_base's list of events on a given file descriptor, and tell the |
| michael@0 | 54 | underlying eventops about the fd if its state has changed. |
| michael@0 | 55 | |
| michael@0 | 56 | Requires that ev is not already added. |
| michael@0 | 57 | |
| michael@0 | 58 | @param base the event_base to operate on. |
| michael@0 | 59 | @param fd the file descriptor corresponding to ev. |
| michael@0 | 60 | @param ev the event to add. |
| michael@0 | 61 | */ |
| michael@0 | 62 | int evmap_io_add(struct event_base *base, evutil_socket_t fd, struct event *ev); |
| michael@0 | 63 | /** Remove an IO event (some combination of EV_READ or EV_WRITE) to an |
| michael@0 | 64 | event_base's list of events on a given file descriptor, and tell the |
| michael@0 | 65 | underlying eventops about the fd if its state has changed. |
| michael@0 | 66 | |
| michael@0 | 67 | @param base the event_base to operate on. |
| michael@0 | 68 | @param fd the file descriptor corresponding to ev. |
| michael@0 | 69 | @param ev the event to remove. |
| michael@0 | 70 | */ |
| michael@0 | 71 | int evmap_io_del(struct event_base *base, evutil_socket_t fd, struct event *ev); |
| michael@0 | 72 | /** Active the set of events waiting on an event_base for a given fd. |
| michael@0 | 73 | |
| michael@0 | 74 | @param base the event_base to operate on. |
| michael@0 | 75 | @param fd the file descriptor that has become active. |
| michael@0 | 76 | @param events a bitmask of EV_READ|EV_WRITE|EV_ET. |
| michael@0 | 77 | */ |
| michael@0 | 78 | void evmap_io_active(struct event_base *base, evutil_socket_t fd, short events); |
| michael@0 | 79 | |
| michael@0 | 80 | |
| michael@0 | 81 | /* These functions behave in the same way as evmap_io_*, except they work on |
| michael@0 | 82 | * signals rather than fds. signals use a linear map everywhere; fds use |
| michael@0 | 83 | * either a linear map or a hashtable. */ |
| michael@0 | 84 | int evmap_signal_add(struct event_base *base, int signum, struct event *ev); |
| michael@0 | 85 | int evmap_signal_del(struct event_base *base, int signum, struct event *ev); |
| michael@0 | 86 | void evmap_signal_active(struct event_base *base, evutil_socket_t signum, int ncalls); |
| michael@0 | 87 | |
| michael@0 | 88 | void *evmap_io_get_fdinfo(struct event_io_map *ctx, evutil_socket_t fd); |
| michael@0 | 89 | |
| michael@0 | 90 | void evmap_check_integrity(struct event_base *base); |
| michael@0 | 91 | |
| michael@0 | 92 | #endif /* _EVMAP_H_ */ |
