Public Types | Public Member Functions | Data Fields | Static Public Attributes

ChunkedHandler Struct Reference

#include <HttpTunnel.h>

Collaboration diagram for ChunkedHandler:
Collaboration graph
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Public Types

enum  ChunkedState {
  CHUNK_READ_CHUNK = 0, CHUNK_READ_SIZE_START, CHUNK_READ_SIZE, CHUNK_READ_SIZE_CRLF,
  CHUNK_READ_TRAILER_BLANK, CHUNK_READ_TRAILER_CR, CHUNK_READ_TRAILER_LINE, CHUNK_READ_ERROR,
  CHUNK_READ_DONE, CHUNK_WRITE_CHUNK, CHUNK_WRITE_DONE, CHUNK_FLOW_CONTROL
}
enum  Action { ACTION_DOCHUNK = 0, ACTION_DECHUNK, ACTION_PASSTHRU }

Public Member Functions

 ChunkedHandler ()
void init (IOBufferReader *buffer_in, HttpTunnelProducer *p)
void init_by_action (IOBufferReader *buffer_in, Action action)
void clear ()
void set_max_chunk_size (int64_t size)
 Set the max chunk size.
bool process_chunked_content ()
bool generate_chunked_content ()

Data Fields

Action action
IOBufferReader * chunked_reader
MIOBuffer * dechunked_buffer
int64_t dechunked_size
IOBufferReader * dechunked_reader
MIOBuffer * chunked_buffer
int64_t chunked_size
bool truncation
int64_t skip_bytes
ChunkedState state
int64_t cur_chunk_size
int64_t bytes_left
int last_server_event
int running_sum
int num_digits
Output data.

int64_t max_chunk_size
 The maximum chunk size.
char max_chunk_header [16]
 Caching members to avoid using printf on every chunk.
int max_chunk_header_len

Static Public Attributes

static int const DEFAULT_MAX_CHUNK_SIZE = 4096

Detailed Description

Definition at line 87 of file HttpTunnel.h.

Member Enumeration Documentation

enum ChunkedHandler::Action
Enumerator:
ACTION_DOCHUNK 
ACTION_DECHUNK 
ACTION_PASSTHRU 

Definition at line 106 of file HttpTunnel.h.

enum ChunkedHandler::ChunkedState
Enumerator:
CHUNK_READ_CHUNK 
CHUNK_READ_SIZE_START 
CHUNK_READ_SIZE 
CHUNK_READ_SIZE_CRLF 
CHUNK_READ_TRAILER_BLANK 
CHUNK_READ_TRAILER_CR 
CHUNK_READ_TRAILER_LINE 
CHUNK_READ_ERROR 
CHUNK_READ_DONE 
CHUNK_WRITE_CHUNK 
CHUNK_WRITE_DONE 
CHUNK_FLOW_CONTROL 

Definition at line 89 of file HttpTunnel.h.

Constructor & Destructor Documentation

ChunkedHandler::ChunkedHandler (  ) 

Definition at line 61 of file HttpTunnel.cc.

Member Function Documentation

void ChunkedHandler::clear ( void   ) 

Definition at line 114 of file HttpTunnel.cc.

References action, ACTION_DECHUNK, ACTION_DOCHUNK, ACTION_PASSTHRU, chunked_buffer, dechunked_buffer, and free_MIOBuffer().

Referenced by FetchSM::cleanUp().

bool ChunkedHandler::generate_chunked_content (  ) 

Definition at line 330 of file HttpTunnel.cc.

References CHUNK_HEADER_FMT, CHUNK_WRITE_DONE, chunked_buffer, chunked_size, IOBufferReader::consume(), Debug, dechunked_reader, HTTP_TUNNEL_EVENT_PRECOMPLETE, ink_assert, last_server_event, max_chunk_header, max_chunk_header_len, max_chunk_size, MIN, IOBufferReader::read_avail(), state, VC_EVENT_EOS, VC_EVENT_READ_COMPLETE, and MIOBuffer::write().

Referenced by HttpTunnel::producer_handler_dechunked().

void ChunkedHandler::init ( IOBufferReader *  buffer_in,
HttpTunnelProducer *  p 
)

Definition at line 70 of file HttpTunnel.cc.

References ACTION_DECHUNK, ACTION_DOCHUNK, ACTION_PASSTHRU, HttpTunnelProducer::do_chunking, HttpTunnelProducer::do_dechunking, and init_by_action().

void ChunkedHandler::init_by_action ( IOBufferReader *  buffer_in,
Action  action 
)

Definition at line 82 of file HttpTunnel.cc.

References ACTION_DECHUNK, ACTION_DOCHUNK, ACTION_PASSTHRU, BUFFER_SIZE_INDEX_256, bytes_left, CHUNK_IOBUFFER_SIZE_INDEX, chunked_buffer, chunked_reader, chunked_size, MIOBuffer::clone_reader(), cur_chunk_size, dechunked_buffer, dechunked_reader, dechunked_size, ink_release_assert, IOBufferReader::mbuf, min_block_transfer_bytes, new_MIOBuffer, num_digits, running_sum, truncation, and MIOBuffer::water_mark.

Referenced by init().

bool ChunkedHandler::process_chunked_content (  ) 

Definition at line 303 of file HttpTunnel.cc.

References CHUNK_FLOW_CONTROL, CHUNK_READ_CHUNK, CHUNK_READ_DONE, CHUNK_READ_ERROR, CHUNK_READ_SIZE, CHUNK_READ_SIZE_CRLF, CHUNK_READ_SIZE_START, CHUNK_READ_TRAILER_BLANK, CHUNK_READ_TRAILER_CR, CHUNK_READ_TRAILER_LINE, chunked_reader, ink_release_assert, IOBufferReader::is_read_avail_more_than(), and state.

Referenced by HttpTunnel::producer_handler_chunked().

void ChunkedHandler::set_max_chunk_size ( int64_t  size  ) 

Set the max chunk size.

If size is zero it is set to DEFAULT_MAX_CHUNK_SIZE.

Definition at line 132 of file HttpTunnel.cc.

References CHUNK_HEADER_FMT, DEFAULT_MAX_CHUNK_SIZE, max_chunk_header, max_chunk_header_len, and max_chunk_size.

Referenced by HttpTunnel::set_producer_chunking_size().

Field Documentation

Action ChunkedHandler::action

Definition at line 112 of file HttpTunnel.h.

Referenced by clear().

int64_t ChunkedHandler::bytes_left

Definition at line 127 of file HttpTunnel.h.

Referenced by init_by_action().

MIOBuffer* ChunkedHandler::chunked_buffer

Definition at line 119 of file HttpTunnel.h.

Referenced by clear(), HttpTunnel::deallocate_buffers(), generate_chunked_content(), and init_by_action().

IOBufferReader* ChunkedHandler::chunked_reader

Definition at line 114 of file HttpTunnel.h.

Referenced by HttpTunnelProducer::backlog(), init_by_action(), and process_chunked_content().

int64_t ChunkedHandler::chunked_size

Definition at line 120 of file HttpTunnel.h.

Referenced by generate_chunked_content(), and init_by_action().

int64_t ChunkedHandler::cur_chunk_size

Definition at line 126 of file HttpTunnel.h.

Referenced by init_by_action().

MIOBuffer* ChunkedHandler::dechunked_buffer

Definition at line 115 of file HttpTunnel.h.

Referenced by clear(), HttpTunnel::deallocate_buffers(), and init_by_action().

IOBufferReader* ChunkedHandler::dechunked_reader

Definition at line 118 of file HttpTunnel.h.

Referenced by FetchSM::ext_read_data(), generate_chunked_content(), FetchSM::get_info_from_buffer(), and init_by_action().

int64_t ChunkedHandler::dechunked_size

Definition at line 116 of file HttpTunnel.h.

Referenced by init_by_action().

int const ChunkedHandler::DEFAULT_MAX_CHUNK_SIZE = 4096 [static]

Definition at line 104 of file HttpTunnel.h.

Referenced by set_max_chunk_size().

int ChunkedHandler::last_server_event

Definition at line 128 of file HttpTunnel.h.

Referenced by generate_chunked_content(), HttpTunnel::producer_handler_chunked(), and HttpTunnel::producer_handler_dechunked().

char ChunkedHandler::max_chunk_header[16]

Caching members to avoid using printf on every chunk.

It holds the header for a maximal sized chunk which will cover almost all output chunks.

Definition at line 142 of file HttpTunnel.h.

Referenced by generate_chunked_content(), and set_max_chunk_size().

int ChunkedHandler::max_chunk_header_len

Definition at line 143 of file HttpTunnel.h.

Referenced by HttpTunnel::deallocate_buffers(), generate_chunked_content(), and set_max_chunk_size().

int64_t ChunkedHandler::max_chunk_size

The maximum chunk size.

This is the preferred size as well, used whenever possible.

Definition at line 138 of file HttpTunnel.h.

Referenced by generate_chunked_content(), and set_max_chunk_size().

int ChunkedHandler::num_digits

Definition at line 132 of file HttpTunnel.h.

Referenced by init_by_action().

int ChunkedHandler::running_sum

Definition at line 131 of file HttpTunnel.h.

Referenced by init_by_action().

int64_t ChunkedHandler::skip_bytes

Definition at line 123 of file HttpTunnel.h.

Referenced by HttpTunnel::set_producer_chunking_action().

ChunkedState ChunkedHandler::state

Definition at line 125 of file HttpTunnel.h.

Referenced by generate_chunked_content(), FetchSM::get_info_from_buffer(), process_chunked_content(), HttpTunnel::producer_handler_chunked(), and HttpTunnel::set_producer_chunking_action().

bool ChunkedHandler::truncation

Definition at line 122 of file HttpTunnel.h.

Referenced by init_by_action(), HttpSM::is_http_server_eos_truncation(), HttpTunnel::producer_handler_chunked(), HttpSM::tunnel_handler_post_ua(), and HttpSM::tunnel_handler_server().

The documentation for this struct was generated from the following files:
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