ZLKMedia/3rdpart/wepoll/wepoll.h

/*
 * wepoll - epoll for Windows
 * https://github.com/piscisaureus/wepoll
 *
 * Copyright 2012-2020, Bert Belder <bertbelder@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * 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
 * OWNER 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 WEPOLL_H_
#define WEPOLL_H_

#ifndef WEPOLL_EXPORT
#define WEPOLL_EXPORT
#endif

#include <stdint.h>

enum EPOLL_EVENTS {
    EPOLLIN = (int)(1U << 0),
    EPOLLPRI = (int)(1U << 1),
    EPOLLOUT = (int)(1U << 2),
    EPOLLERR = (int)(1U << 3),
    EPOLLHUP = (int)(1U << 4),
    EPOLLRDNORM = (int)(1U << 6),
    EPOLLRDBAND = (int)(1U << 7),
    EPOLLWRNORM = (int)(1U << 8),
    EPOLLWRBAND = (int)(1U << 9),
    EPOLLMSG = (int)(1U << 10), /* Never reported. */
    EPOLLRDHUP = (int)(1U << 13),
    EPOLLONESHOT = (int)(1U << 31)
};

#define EPOLLIN (1U << 0)
#define EPOLLPRI (1U << 1)
#define EPOLLOUT (1U << 2)
#define EPOLLERR (1U << 3)
#define EPOLLHUP (1U << 4)
#define EPOLLRDNORM (1U << 6)
#define EPOLLRDBAND (1U << 7)
#define EPOLLWRNORM (1U << 8)
#define EPOLLWRBAND (1U << 9)
#define EPOLLMSG (1U << 10)
#define EPOLLRDHUP (1U << 13)
#define EPOLLONESHOT (1U << 31)

#define EPOLL_CTL_ADD 1
#define EPOLL_CTL_MOD 2
#define EPOLL_CTL_DEL 3

typedef void *HANDLE;
typedef uintptr_t SOCKET;

typedef union epoll_data {
    void *ptr;
    int fd;
    uint32_t u32;
    uint64_t u64;
    SOCKET sock; /* Windows specific */
    HANDLE hnd; /* Windows specific */
} epoll_data_t;

struct epoll_event {
    uint32_t events; /* Epoll events and flags */
    epoll_data_t data; /* User data variable */
};

#ifdef __cplusplus
extern "C" {
#endif

WEPOLL_EXPORT HANDLE epoll_create(int size);
WEPOLL_EXPORT HANDLE epoll_create1(int flags);

WEPOLL_EXPORT int epoll_close(HANDLE ephnd);

WEPOLL_EXPORT int epoll_ctl(HANDLE ephnd, int op, SOCKET sock, struct epoll_event *event);

WEPOLL_EXPORT int epoll_wait(HANDLE ephnd, struct epoll_event *events, int maxevents, int timeout);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* WEPOLL_H_ */