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/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2013 Olaf Wintermann. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef EVENT_LINUX_H #define EVENT_LINUX_H #include "event.h" #include <inttypes.h> #include <cx/list.h> #ifdef __cplusplus extern "C" { #endif #define EV_QUEUE_RESERVE 8 typedef struct EventQueue EventQueue; typedef struct EventHandlerLinux { /* * base eventhandler elements (fnreturn, watchlist) */ EventHandler base; /* * eventhandler thread */ pthread_t thr; /* * epoll fd */ int ep; /* * eventfd for notifying that new elements * in the event_queue are available */ int event_fd; /* * queue for custom events (event_send) * each block can contain up to EV_MAX_EVENTS events * the event loop should not retrieve more than one block * * first queue block */ EventQueue *queue_begin; /* * last queue block */ EventQueue *queue_end; /* * allocated unused blocks */ EventQueue *reserve_block[EV_QUEUE_RESERVE]; /* * number of unused blocks */ size_t num_reserve; /* * mutex for event_queue */ pthread_mutex_t queue_lock; } EventHandlerLinux; struct EventQueue { /* * array of events */ Event *events[EV_MAX_EVENTS]; /* * number of events */ size_t numevents; /* * next event block */ EventQueue *next; }; void ev_handle_events(EventHandlerLinux *ev); int ev_convert2sys_events(int events); void ev_queue_free(EventQueue *queue); #ifdef __cplusplus } #endif #endif /* EVENT_LINUX_H */