X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fpoll-loop.h;h=65a2ff0374205a975e39239cac3823efbe3df486;hb=46aef12ee5fcb028d20bac654c8a08cf993cfac8;hp=188b4f1987db8c3fa4e069a20b06c49e0c63a270;hpb=064af42167bf4fc9aaea2702d80ce08074b889c0;p=openvswitch diff --git a/lib/poll-loop.h b/lib/poll-loop.h index 188b4f19..65a2ff03 100644 --- a/lib/poll-loop.h +++ b/lib/poll-loop.h @@ -1,17 +1,17 @@ /* - * Copyright (c) 2008 Nicira Networks. + * Copyright (c) 2008, 2009, 2010 Nicira Networks. * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. */ /* High-level wrapper around the "poll" system call. @@ -22,34 +22,33 @@ * calls one (or more) of the functions poll_fd_wait(), poll_immediate_wake(), * and poll_timer_wait() to register to be awakened when the appropriate event * occurs. Then the main loop calls poll_block(), which blocks until one of - * the registered events happens. - * - * There is also some support for autonomous subroutines that are executed by - * poll_block() when a file descriptor becomes ready. To prevent these - * routines from starving if events are continuously ready, the application - * should bound the amount of work it does between poll_block() calls. */ + * the registered events happens. */ #ifndef POLL_LOOP_H #define POLL_LOOP_H 1 #include +#ifdef __cplusplus +extern "C" { +#endif + struct poll_waiter; /* Schedule events to wake up the following poll_block(). */ struct poll_waiter *poll_fd_wait(int fd, short int events); -void poll_timer_wait(int msec); +void poll_timer_wait(long long int msec); +void poll_timer_wait_until(long long int msec); void poll_immediate_wake(void); /* Wait until an event occurs. */ void poll_block(void); -/* Autonomous function callbacks. */ -typedef void poll_fd_func(int fd, short int revents, void *aux); -struct poll_waiter *poll_fd_callback(int fd, short int events, - poll_fd_func *, void *aux); - /* Cancel a file descriptor callback or event. */ void poll_cancel(struct poll_waiter *); +#ifdef __cplusplus +} +#endif + #endif /* poll-loop.h */