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dd27469123
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* Copyright (C) Volker Lendecke 2013
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file poll_funcs.h
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*
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* @brief event loop abstraction
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*/
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/*
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* This is inspired by AvahiWatch, the avahi event loop abstraction.
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*/
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#ifndef __POLL_FUNCS_H__
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#define __POLL_FUNCS_H__
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#include "replace.h"
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/**
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* poll_watch and poll_timeout are undefined here, every implementation can
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* implement its own structures.
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*/
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struct poll_watch;
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struct poll_timeout;
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struct poll_funcs {
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/**
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* @brief Create a new file descriptor watch
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*
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* @param[in] funcs The callback array
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* @param[in] fd The fd to watch
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* @param[in] events POLLIN and POLLOUT or'ed together
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* @param[in] callback Function to call by the implementation
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* @param[in] private_data Pointer to give back to callback
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*
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* @return A new poll_watch struct
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*/
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struct poll_watch *(*watch_new)(
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const struct poll_funcs *funcs, int fd, short events,
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void (*callback)(struct poll_watch *w, int fd,
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short events, void *private_data),
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void *private_data);
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/**
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* @brief Change the watched events for a struct poll_watch
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*
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* @param[in] w The poll_watch to change
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* @param[in] events new POLLIN and POLLOUT or'ed together
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*/
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void (*watch_update)(struct poll_watch *w, short events);
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/**
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* @brief Read events currently watched
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*
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* @param[in] w The poll_watch to inspect
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*
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* @returns The events currently watched
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*/
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short (*watch_get_events)(struct poll_watch *w);
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/**
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* @brief Free a struct poll_watch
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*
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* @param[in] w The poll_watch struct to free
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*/
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void (*watch_free)(struct poll_watch *w);
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/**
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* @brief Create a new timeout watch
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*
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* @param[in] funcs The callback array
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* @param[in] tv The time when the timeout should trigger
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* @param[in] callback Function to call at time "ts"
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* @param[in] private_data Pointer to give back to callback
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*
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* @return A new poll_timeout struct
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*/
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struct poll_timeout *(*timeout_new)(
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const struct poll_funcs *funcs, const struct timeval *tv,
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void (*callback)(struct poll_timeout *t, void *private_data),
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void *private_data);
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/**
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* @brief Change the timeout of a watch
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*
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* @param[in] t The timeout watch to change
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* @param[in] ts The new trigger time
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*/
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void (*timeout_update)(struct poll_timeout *t,
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const struct timespec *ts);
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/**
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* @brief Free a poll_timeout
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*
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* @param[in] t The poll_timeout to free
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*/
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void (*timeout_free)(struct poll_timeout *t);
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/**
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* @brief private data for use by the implementation
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*/
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void *private_data;
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};
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#endif
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