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157 lines (128 loc) · 4.7 KB
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/*
* libevent compatibility header, only core events supported
*
* SPDX-License-Identifier: MIT
* Copyright (c) 2011-2026 qb - isndev (cpp.actor).
*
* Part of qev, a modernized cross-platform fork of libev.
* Based on libev by Marc Alexander Lehmann <libev@schmorp.de>.
* Upstream: http://software.schmorp.de/pkg/libev.html
*
* Released under the MIT License (see LICENSE). Portions derived from libev
* remain Copyright (c) Marc Alexander Lehmann under the BSD-2-Clause license;
* see THIRD-PARTY-NOTICES.
*/
#ifndef QB_EV_EVENT_H_
#define QB_EV_EVENT_H_
#ifdef EV_H
#include EV_H
#else
#include "ev.h"
#endif
#ifndef EVLOOP_NONBLOCK
#define EVLOOP_NONBLOCK EVRUN_NOWAIT
#endif
#ifndef EVLOOP_ONESHOT
#define EVLOOP_ONESHOT EVRUN_ONCE
#endif
#ifndef EV_TIMEOUT
#define EV_TIMEOUT EV_TIMER
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* struct timeval: POSIX headers, or Winsock 2 on MSVC (avoid winsock.h vs winsock2.h clash). */
#if !defined(_WIN32) || defined(__MINGW32__)
#include <time.h> /* mingw seems to need this, for whatever reason */
#include <sys/time.h>
#else
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
struct event_base;
#define EVLIST_TIMEOUT 0x01
#define EVLIST_INSERTED 0x02
#define EVLIST_SIGNAL 0x04
#define EVLIST_ACTIVE 0x08
#define EVLIST_INTERNAL 0x10
#define EVLIST_INIT 0x80
typedef void (*event_callback_fn)(int, short, void *);
struct event {
/* libev watchers we map onto */
union {
struct ev_io io;
struct ev_signal sig;
} iosig;
struct ev_timer to;
/* compatibility slots */
struct event_base *ev_base;
event_callback_fn ev_callback;
void *ev_arg;
int ev_fd;
int ev_pri;
int ev_res;
int ev_flags;
short ev_events;
};
event_callback_fn event_get_callback(const struct event *ev);
#define EV_READ EV_READ
#define EV_WRITE EV_WRITE
#define EV_PERSIST 0x10
#define EV_ET 0x20 /* nop */
#define EVENT_SIGNAL(ev) ((ev) ? (int) (ev)->ev_fd : -1)
#define EVENT_FD(ev) ((ev) ? (int) (ev)->ev_fd : -1)
#define event_initialized(ev) ((ev) && ((ev)->ev_flags & EVLIST_INIT))
#define evtimer_add(ev, tv) event_add(ev, tv)
#define evtimer_set(ev, cb, data) event_set(ev, -1, 0, cb, data)
#define evtimer_del(ev) event_del(ev)
#define evtimer_pending(ev, tv) event_pending(ev, EV_TIMEOUT, tv)
#define evtimer_initialized(ev) event_initialized(ev)
#define timeout_add(ev, tv) evtimer_add(ev, tv)
#define timeout_set(ev, cb, data) evtimer_set(ev, cb, data)
#define timeout_del(ev) evtimer_del(ev)
#define timeout_pending(ev, tv) evtimer_pending(ev, tv)
#define timeout_initialized(ev) evtimer_initialized(ev)
#define signal_add(ev, tv) event_add(ev, tv)
#define signal_set(ev, sig, cb, data) event_set(ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
#define signal_del(ev) event_del(ev)
#define signal_pending(ev, tv) event_pending(ev, EV_SIGNAL, tv)
#define signal_initialized(ev) event_initialized(ev)
const char *event_get_version(void);
const char *event_get_method(void);
void *event_init(void);
void event_base_free(struct event_base *base);
#define EVLOOP_ONCE EVLOOP_ONESHOT
int event_loop(int);
int event_loopexit(struct timeval *tv);
int event_dispatch(void);
#define _EVENT_LOG_DEBUG 0
#define _EVENT_LOG_MSG 1
#define _EVENT_LOG_WARN 2
#define _EVENT_LOG_ERR 3
typedef void (*event_log_cb)(int severity, const char *msg);
void event_set_log_callback(event_log_cb cb);
void event_set(struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
int event_once(int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
int event_add(struct event *ev, struct timeval *tv);
int event_del(struct event *ev);
void event_active(struct event *ev, int res, short ncalls); /* ncalls is being ignored */
int event_pending(struct event *ev, short, struct timeval *tv);
int event_priority_init(int npri);
int event_priority_set(struct event *ev, int pri);
struct event_base *event_base_new(void);
const char *event_base_get_method(const struct event_base *);
int event_base_set(struct event_base *base, struct event *ev);
int event_base_loop(struct event_base *base, int);
int event_base_loopexit(struct event_base *base, struct timeval *tv);
int event_base_dispatch(struct event_base *base);
int event_base_once(struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
int event_base_priority_init(struct event_base *base, int npri);
/* next line is different in the libevent+libev version */
/*libevent-include*/
#ifdef __cplusplus
}
#endif
#endif