1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/third_party/libevent/evmap-internal.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,92 @@
1.4 +/*
1.5 + * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
1.6 + *
1.7 + * Redistribution and use in source and binary forms, with or without
1.8 + * modification, are permitted provided that the following conditions
1.9 + * are met:
1.10 + * 1. Redistributions of source code must retain the above copyright
1.11 + * notice, this list of conditions and the following disclaimer.
1.12 + * 2. Redistributions in binary form must reproduce the above copyright
1.13 + * notice, this list of conditions and the following disclaimer in the
1.14 + * documentation and/or other materials provided with the distribution.
1.15 + * 3. The name of the author may not be used to endorse or promote products
1.16 + * derived from this software without specific prior written permission.
1.17 + *
1.18 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1.19 + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1.20 + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1.21 + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1.22 + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1.23 + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.24 + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.25 + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.26 + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
1.27 + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.28 + */
1.29 +#ifndef _EVMAP_H_
1.30 +#define _EVMAP_H_
1.31 +
1.32 +/** @file evmap-internal.h
1.33 + *
1.34 + * An event_map is a utility structure to map each fd or signal to zero or
1.35 + * more events. Functions to manipulate event_maps should only be used from
1.36 + * inside libevent. They generally need to hold the lock on the corresponding
1.37 + * event_base.
1.38 + **/
1.39 +
1.40 +struct event_base;
1.41 +struct event;
1.42 +
1.43 +/** Initialize an event_map for use.
1.44 + */
1.45 +void evmap_io_initmap(struct event_io_map* ctx);
1.46 +void evmap_signal_initmap(struct event_signal_map* ctx);
1.47 +
1.48 +/** Remove all entries from an event_map.
1.49 +
1.50 + @param ctx the map to clear.
1.51 + */
1.52 +void evmap_io_clear(struct event_io_map* ctx);
1.53 +void evmap_signal_clear(struct event_signal_map* ctx);
1.54 +
1.55 +/** Add an IO event (some combination of EV_READ or EV_WRITE) to an
1.56 + event_base's list of events on a given file descriptor, and tell the
1.57 + underlying eventops about the fd if its state has changed.
1.58 +
1.59 + Requires that ev is not already added.
1.60 +
1.61 + @param base the event_base to operate on.
1.62 + @param fd the file descriptor corresponding to ev.
1.63 + @param ev the event to add.
1.64 +*/
1.65 +int evmap_io_add(struct event_base *base, evutil_socket_t fd, struct event *ev);
1.66 +/** Remove an IO event (some combination of EV_READ or EV_WRITE) to an
1.67 + event_base's list of events on a given file descriptor, and tell the
1.68 + underlying eventops about the fd if its state has changed.
1.69 +
1.70 + @param base the event_base to operate on.
1.71 + @param fd the file descriptor corresponding to ev.
1.72 + @param ev the event to remove.
1.73 + */
1.74 +int evmap_io_del(struct event_base *base, evutil_socket_t fd, struct event *ev);
1.75 +/** Active the set of events waiting on an event_base for a given fd.
1.76 +
1.77 + @param base the event_base to operate on.
1.78 + @param fd the file descriptor that has become active.
1.79 + @param events a bitmask of EV_READ|EV_WRITE|EV_ET.
1.80 +*/
1.81 +void evmap_io_active(struct event_base *base, evutil_socket_t fd, short events);
1.82 +
1.83 +
1.84 +/* These functions behave in the same way as evmap_io_*, except they work on
1.85 + * signals rather than fds. signals use a linear map everywhere; fds use
1.86 + * either a linear map or a hashtable. */
1.87 +int evmap_signal_add(struct event_base *base, int signum, struct event *ev);
1.88 +int evmap_signal_del(struct event_base *base, int signum, struct event *ev);
1.89 +void evmap_signal_active(struct event_base *base, evutil_socket_t signum, int ncalls);
1.90 +
1.91 +void *evmap_io_get_fdinfo(struct event_io_map *ctx, evutil_socket_t fd);
1.92 +
1.93 +void evmap_check_integrity(struct event_base *base);
1.94 +
1.95 +#endif /* _EVMAP_H_ */
