mirror of
https://github.com/oven-sh/bun
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109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/*
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* Authored by Alex Hultman, 2018-2020.
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* Intellectual property of third-party.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// clang-format off
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#pragma once
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/* This data belongs to the HttpResponse */
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#include "HttpParser.h"
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#include "AsyncSocketData.h"
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#include "ProxyParser.h"
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#include "MoveOnlyFunction.h"
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namespace uWS {
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template <bool SSL>
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struct HttpResponseData : AsyncSocketData<SSL>, HttpParser {
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template <bool> friend struct HttpResponse;
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template <bool> friend struct HttpContext;
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public:
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using OnWritableCallback = bool (*)(uWS::HttpResponse<SSL>*, uint64_t, void*);
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using OnAbortedCallback = void (*)(uWS::HttpResponse<SSL>*, void*);
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using OnTimeoutCallback = void (*)(uWS::HttpResponse<SSL>*, void*);
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using OnDataCallback = void (*)(uWS::HttpResponse<SSL>* response, const char* chunk, size_t chunk_length, bool, void*);
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/* When we are done with a response we mark it like so */
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void markDone() {
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onAborted = nullptr;
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/* Also remove onWritable so that we do not emit when draining behind the scenes. */
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onWritable = nullptr;
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/* Ignore data after this point */
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inStream = nullptr;
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// Ensure we don't call a timeout callback
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onTimeout = nullptr;
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/* We are done with this request */
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this->state &= ~HttpResponseData<SSL>::HTTP_RESPONSE_PENDING;
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}
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/* Caller of onWritable. It is possible onWritable calls markDone so we need to borrow it. */
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bool callOnWritable( uWS::HttpResponse<SSL>* response, uint64_t offset) {
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/* Borrow real onWritable */
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auto* borrowedOnWritable = std::move(onWritable);
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/* Set onWritable to placeholder */
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onWritable = [](uWS::HttpResponse<SSL>*, uint64_t, void*) {return true;};
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/* Run borrowed onWritable */
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bool ret = borrowedOnWritable(response, offset, userData);
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/* If we still have onWritable (the placeholder) then move back the real one */
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if (onWritable) {
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/* We haven't reset onWritable, so give it back */
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onWritable = std::move(borrowedOnWritable);
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}
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return ret;
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}
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/* Bits of status */
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enum : uint8_t {
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HTTP_STATUS_CALLED = 1, // used
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HTTP_WRITE_CALLED = 2, // used
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HTTP_END_CALLED = 4, // used
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HTTP_RESPONSE_PENDING = 8, // used
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HTTP_CONNECTION_CLOSE = 16 // used
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};
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/* Shared context pointer */
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void* userData = nullptr;
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/* Per socket event handlers */
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OnWritableCallback onWritable = nullptr;
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OnAbortedCallback onAborted = nullptr;
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OnDataCallback inStream = nullptr;
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OnTimeoutCallback onTimeout = nullptr;
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/* Outgoing offset */
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uint64_t offset = 0;
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/* Let's track number of bytes since last timeout reset in data handler */
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unsigned int received_bytes_per_timeout = 0;
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/* Current state (content-length sent, status sent, write called, etc */
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uint8_t state = 0;
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uint8_t idleTimeout = 10; // default HTTP_TIMEOUT 10 seconds
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#ifdef UWS_WITH_PROXY
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ProxyParser proxyParser;
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#endif
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};
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}
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