mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "td/utils/port/config.h"
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#ifdef TD_POLL_KQUEUE
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#include "td/utils/common.h"
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#include "td/utils/List.h"
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#include "td/utils/port/detail/NativeFd.h"
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#include "td/utils/port/detail/PollableFd.h"
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#include "td/utils/port/PollBase.h"
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#include "td/utils/port/PollFlags.h"
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#include <cstdint>
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#include <sys/types.h> // must be included before sys/event.h, which depends on sys/types.h on FreeBSD
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#include <sys/event.h>
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namespace td {
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namespace detail {
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class KQueue final : public PollBase {
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public:
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KQueue() = default;
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KQueue(const KQueue &) = delete;
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KQueue &operator=(const KQueue &) = delete;
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KQueue(KQueue &&) = delete;
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KQueue &operator=(KQueue &&) = delete;
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~KQueue() override;
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void init() override;
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void clear() override;
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void subscribe(PollableFd fd, PollFlags flags) override;
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void unsubscribe(PollableFdRef fd) override;
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void unsubscribe_before_close(PollableFdRef fd) override;
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void run(int timeout_ms) override;
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static bool is_edge_triggered() {
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return true;
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}
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private:
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vector<struct kevent> events_;
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int changes_n_;
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NativeFd kq_;
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ListNode list_root_;
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int update(int nevents, const timespec *timeout, bool may_fail = false);
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void invalidate(int native_fd);
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void flush_changes(bool may_fail = false);
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void add_change(std::uintptr_t ident, int16 filter, uint16 flags, uint32 fflags, std::intptr_t data, void *udata);
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};
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} // namespace detail
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} // namespace td
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#endif
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