65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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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_SELECT
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#include "td/utils/common.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 <sys/select.h>
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namespace td {
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namespace detail {
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class Select final : public PollBase {
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public:
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Select() = default;
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Select(const Select &) = delete;
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Select &operator=(const Select &) = delete;
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Select(Select &&) = delete;
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Select &operator=(Select &&) = delete;
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~Select() override = default;
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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 false;
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}
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private:
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struct FdInfo {
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PollableFd fd;
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PollFlags flags;
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};
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vector<FdInfo> fds_;
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fd_set all_fd_;
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fd_set read_fd_;
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fd_set write_fd_;
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fd_set except_fd_;
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int max_fd_;
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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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