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65f7e45a75
This makes connections (particularly TLS-based ones) do the handshaking stuff only once. Currently the cache is configured to keep at most two connections evenly balanced in queue size, and with a grace period of 10s after the last queued job has finished (after which the connection will be dropped).
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/Stream.h>
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#include <LibCore/Object.h>
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namespace Core {
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class NetworkJob : public Object {
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C_OBJECT_ABSTRACT(NetworkJob)
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public:
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enum class Error {
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None,
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ConnectionFailed,
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TransmissionFailed,
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ProtocolFailed,
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Cancelled,
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};
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virtual ~NetworkJob() override;
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// Could fire twice, after Headers and after Trailers!
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Function<void(const HashMap<String, String, CaseInsensitiveStringTraits>& response_headers, Optional<u32> response_code)> on_headers_received;
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Function<void(bool success)> on_finish;
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Function<void(Optional<u32>, u32)> on_progress;
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bool is_cancelled() const { return m_error == Error::Cancelled; }
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bool has_error() const { return m_error != Error::None; }
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Error error() const { return m_error; }
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NetworkResponse* response() { return m_response.ptr(); }
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const NetworkResponse* response() const { return m_response.ptr(); }
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virtual void start(NonnullRefPtr<Core::Socket>) = 0;
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virtual void shutdown() = 0;
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void cancel()
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{
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shutdown();
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m_error = Error::Cancelled;
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}
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protected:
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NetworkJob(OutputStream&);
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void did_finish(NonnullRefPtr<NetworkResponse>&&);
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void did_fail(Error);
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void did_progress(Optional<u32> total_size, u32 downloaded);
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size_t do_write(ReadonlyBytes bytes) { return m_output_stream.write(bytes); }
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private:
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RefPtr<NetworkResponse> m_response;
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OutputStream& m_output_stream;
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Error m_error { Error::None };
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};
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const char* to_string(NetworkJob::Error);
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}
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template<>
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struct AK::Formatter<Core::NetworkJob> : Formatter<Core::Object> {
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};
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