mirror of
https://github.com/troglobit/libuev.git
synced 2026-10-06 15:29:57 +07:00
Joachim Nilsson
35a54ef75e
This patch is a follow-up to2f9cce9, and a complete refactor offe8f3f1which first introduced the EPOLLERR and EPOLLHUP handling. Then mainly for managing errors and hangups on stream sockets. Now, instead of trying to reopen the epoll() fd, and breaking out hard from the event loop on catastrophic error, we now delegate I/O watcher EPOLLERR and EPOLLHUP to the watcher callback, just like other watchers. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/* libuEv - Private methods and data types, do not use directly!
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*
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* Copyright (c) 2012 Flemming Madsen <flemming!madsen()madsensoft!dk>
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* Copyright (c) 2013-2015 Joachim Nilsson <troglobit()gmail!com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef LIBUEV_PRIVATE_H_
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#define LIBUEV_PRIVATE_H_
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#include <stdio.h>
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#include <sys/epoll.h>
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#include "queue.h" /* OpenBSD queue.h > old GLIBC version */
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/* I/O, timer, or signal watcher */
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typedef enum {
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UEV_IO_TYPE = 1,
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UEV_SIGNAL_TYPE,
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UEV_TIMER_TYPE,
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UEV_CRON_TYPE,
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} uev_type_t;
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/* Event mask, used internally only. */
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#define UEV_EVENT_MASK (UEV_ERROR | UEV_READ | UEV_WRITE | UEV_PRI | UEV_HUP | UEV_RDHUP | UEV_EDGE | UEV_ONESHOT)
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/* Main libuEv context type */
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typedef struct {
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int running;
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int fd; /* For epoll() */
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LIST_HEAD(,uev) watchers;
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uint32_t workaround; /* For workarounds, e.g. redirected stdin */
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} uev_ctx_t;
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/* Forward declare due to dependencys, don't try this at home kids. */
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struct uev;
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/* This is used to hide all private data members in uev_t */
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#define uev_private_t \
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LIST_ENTRY(uev) link; /* For queue.h linked list */ \
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\
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int active; \
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int events; \
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\
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/* Watcher callback with optional argument */ \
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void (*cb)(struct uev *, void *, int); \
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void *arg; \
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\
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/* Arguments for different watchers */ \
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union { \
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/* Cron watchers */ \
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struct { \
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time_t when; \
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time_t interval; \
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} c; \
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\
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/* Timer watchers, time in milliseconds */ \
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struct { \
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int timeout; \
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int period; \
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} t; \
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} u; \
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\
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/* Watcher type */ \
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uev_type_t
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/* Internal API for dealing with generic watchers */
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int _uev_watcher_init (uev_ctx_t *ctx, struct uev *w, uev_type_t type,
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void (*cb)(struct uev *, void *, int), void *arg,
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int fd, int events);
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int _uev_watcher_start (struct uev *w);
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int _uev_watcher_stop (struct uev *w);
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int _uev_watcher_active(struct uev *w);
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int _uev_watcher_rearm (struct uev *w);
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#endif /* LIBUEV_PRIVATE_H_ */
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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