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//
// Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#ifndef PLATFORM_POSIX_POLLQ_H
#define PLATFORM_POSIX_POLLQ_H
#ifdef NNG_PLATFORM_POSIX
// This file defines structures we will use for emulating asynchronous I/O
// on POSIX. POSIX lacks the support for callback based asynchronous I/O
// that we have on Windows, although it has a non-widely support aio layer
// that is not very performant on many systems. So we emulate this using
// one of several possible different backends.
#include "core/nng_impl.h"
typedef struct nni_posix_pfd nni_posix_pfd;
typedef void (*nni_posix_pfd_cb)(void *, unsigned);
#if defined(NNG_POLLQ_KQUEUE)
#include "posix_pollq_kqueue.h"
#elif defined(NNG_POLLQ_PORTS)
#include "posix_pollq_port.h"
#elif defined(NNG_POLLQ_EPOLL)
#include "posix_pollq_epoll.h"
#elif defined(NNG_POLLQ_POLL)
#include "posix_pollq_poll.h"
#elif defined(NNG_POLLQ_SELECT)
#include "posix_pollq_select.h"
#else
#error "No suitable poller defined"
#endif
extern void nni_posix_pfd_init(nni_posix_pfd *, int, nni_posix_pfd_cb, void *);
extern void nni_posix_pfd_fini(nni_posix_pfd *);
extern void nni_posix_pfd_stop(nni_posix_pfd *);
extern int nni_posix_pfd_arm(nni_posix_pfd *, unsigned);
extern int nni_posix_pfd_fd(nni_posix_pfd *);
extern void nni_posix_pfd_close(nni_posix_pfd *);
#endif // NNG_PLATFORM_POSIX
#endif // PLATFORM_POSIX_POLLQ_H
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