| /** @file |
| |
| A brief file description |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "HttpSM.h" |
| |
| class TransformVConnection; |
| |
| class TransformTerminus : public VConnection |
| { |
| public: |
| TransformTerminus(TransformVConnection *tvc); |
| |
| int handle_event(int event, void *edata); |
| |
| VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf) override; |
| VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false) override; |
| void do_io_close(int lerrno = -1) override; |
| void do_io_shutdown(ShutdownHowTo_t howto) override; |
| |
| void reenable(VIO *vio) override; |
| |
| public: |
| TransformVConnection *m_tvc; |
| VIO m_read_vio; |
| VIO m_write_vio; |
| int m_event_count; |
| int m_deletable; |
| int m_closed; |
| int m_called_user; |
| }; |
| |
| class TransformVConnection : public TransformVCChain |
| { |
| public: |
| TransformVConnection(Continuation *cont, APIHook *hooks); |
| ~TransformVConnection() override; |
| |
| int handle_event(int event, void *edata); |
| |
| VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf) override; |
| VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false) override; |
| void do_io_close(int lerrno = -1) override; |
| void do_io_shutdown(ShutdownHowTo_t howto) override; |
| |
| void reenable(VIO *vio) override; |
| |
| /** Compute the backlog. |
| @return The actual backlog, or a value at least @a limit. |
| */ |
| uint64_t backlog(uint64_t limit = UINT64_MAX) override; |
| |
| public: |
| VConnection *m_transform; |
| Continuation *m_cont; |
| TransformTerminus m_terminus; |
| int m_closed; |
| }; |
| |
| class TransformControl : public Continuation |
| { |
| public: |
| TransformControl(); |
| |
| int handle_event(int event, void *edata); |
| |
| public: |
| APIHooks m_hooks; |
| VConnection *m_tvc = nullptr; |
| IOBufferReader *m_read_buf = nullptr; |
| MIOBuffer *m_write_buf = nullptr; |
| }; |
| |
| class NullTransform : public INKVConnInternal |
| { |
| public: |
| NullTransform(ProxyMutex *mutex); |
| ~NullTransform() override; |
| |
| int handle_event(int event, void *edata); |
| |
| public: |
| MIOBuffer *m_output_buf; |
| IOBufferReader *m_output_reader; |
| VIO *m_output_vio; |
| }; |
| |
| class RangeTransform : public INKVConnInternal |
| { |
| public: |
| RangeTransform(ProxyMutex *mutex, RangeRecord *ranges, int num_fields, HTTPHdr *transform_resp, const char *content_type, |
| int content_type_len, int64_t content_length); |
| ~RangeTransform() override; |
| |
| int handle_event(int event, void *edata); |
| |
| void transform_to_range(); |
| void add_boundary(bool end); |
| void add_sub_header(int index); |
| void change_response_header(); |
| void calculate_output_cl(); |
| |
| public: |
| MIOBuffer *m_output_buf; |
| IOBufferReader *m_output_reader; |
| |
| HTTPHdr *m_transform_resp; |
| VIO *m_output_vio; |
| int64_t m_range_content_length; |
| int m_num_chars_for_cl; |
| int m_num_range_fields; |
| int m_current_range; |
| const char *m_content_type; |
| int m_content_type_len; |
| RangeRecord *m_ranges; |
| int64_t m_output_cl; |
| int64_t m_done; |
| }; |