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106 lines
3.0 KiB
C++
106 lines
3.0 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 2017-2019 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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#include "td/utils/buffer.h"
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#include "td/utils/optional.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/IPAddress.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Span.h"
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#include "td/utils/Status.h"
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#include <memory>
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namespace td {
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// Udp and errors
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namespace detail {
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class UdpSocketFdImpl;
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class UdpSocketFdImplDeleter {
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public:
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void operator()(UdpSocketFdImpl *impl);
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};
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} // namespace detail
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struct UdpMessage {
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IPAddress address;
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BufferSlice data;
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Status error;
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};
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class UdpSocketFd {
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public:
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UdpSocketFd();
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UdpSocketFd(UdpSocketFd &&);
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UdpSocketFd &operator=(UdpSocketFd &&);
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~UdpSocketFd();
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UdpSocketFd(const UdpSocketFd &) = delete;
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UdpSocketFd &operator=(const UdpSocketFd &) = delete;
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Result<uint32> maximize_snd_buffer(uint32 max_buffer_size = 0);
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Result<uint32> maximize_rcv_buffer(uint32 max_buffer_size = 0);
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static Result<UdpSocketFd> open(const IPAddress &address) TD_WARN_UNUSED_RESULT;
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PollableFdInfo &get_poll_info();
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const PollableFdInfo &get_poll_info() const;
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const NativeFd &get_native_fd() const;
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void close();
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bool empty() const;
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static bool is_critical_read_error(const Status &status);
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#if TD_PORT_POSIX
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struct OutboundMessage {
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const IPAddress *to;
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Slice data;
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};
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struct InboundMessage {
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IPAddress *from;
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MutableSlice data;
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Status *error;
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};
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Status send_message(const OutboundMessage &message, bool &is_sent) TD_WARN_UNUSED_RESULT;
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Status receive_message(InboundMessage &message, bool &is_received) TD_WARN_UNUSED_RESULT;
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Status send_messages(Span<OutboundMessage> messages, size_t &count) TD_WARN_UNUSED_RESULT;
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Status receive_messages(MutableSpan<InboundMessage> messages, size_t &count) TD_WARN_UNUSED_RESULT;
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#elif TD_PORT_WINDOWS
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Result<optional<UdpMessage> > receive();
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void send(UdpMessage message);
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Status flush_send();
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#endif
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private:
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static constexpr uint32 default_udp_max_snd_buffer_size = (1 << 24);
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static constexpr uint32 default_udp_max_rcv_buffer_size = (1 << 24);
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std::unique_ptr<detail::UdpSocketFdImpl, detail::UdpSocketFdImplDeleter> impl_;
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explicit UdpSocketFd(unique_ptr<detail::UdpSocketFdImpl> impl);
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};
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} // namespace td
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