connection.h File Reference

Methods for managing connections. More...

#include "internal.h"
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Functions

int MHD_connection_get_fdset (struct MHD_Connection *connection, fd_set *read_fd_set, fd_set *write_fd_set, fd_set *except_fd_set, int *max_fd)
int MHD_connection_get_pollfd (struct MHD_Connection *connection, struct MHD_Pollfd *p)
void MHD_set_http_callbacks_ (struct MHD_Connection *connection)
int MHD_connection_handle_read (struct MHD_Connection *connection)
int MHD_connection_handle_write (struct MHD_Connection *connection)
int MHD_connection_handle_idle (struct MHD_Connection *connection)
void MHD_connection_close (struct MHD_Connection *connection, enum MHD_RequestTerminationCode termination_code)

Detailed Description

Methods for managing connections.

Author:
Daniel Pittman
Christian Grothoff

Definition in file connection.h.


Function Documentation

void MHD_connection_close ( struct MHD_Connection connection,
enum MHD_RequestTerminationCode  termination_code 
)
int MHD_connection_get_fdset ( struct MHD_Connection connection,
fd_set *  read_fd_set,
fd_set *  write_fd_set,
fd_set *  except_fd_set,
int *  max_fd 
)

Obtain the select sets for this connection.

Returns:
MHD_YES on success

Obtain the select sets for this connection

Returns:
MHD_YES on success

Definition at line 744 of file connection.c.

References do_fd_set(), MHD_Pollfd::events, MHD_Pollfd::fd, MHD_connection_get_pollfd(), MHD_POLL_ACTION_IN, MHD_POLL_ACTION_OUT, and MHD_YES.

Referenced by MHD_get_fdset(), and MHD_handle_connection().

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int MHD_connection_get_pollfd ( struct MHD_Connection connection,
struct MHD_Pollfd p 
)

Obtain the pollfd for this connection. The poll interface allows large file descriptors. Select goes stupid when the fd overflows fdset (which is fixed).

Obtain the pollfd for this connection

Returns:
MHD_YES on success. If return MHD_YES and p->fd < 0, this connection is not waiting for any read or write events

Definition at line 770 of file connection.c.

References connection_close_error(), MHD_Connection::daemon, MHD_Pollfd::events, EXTRA_CHECK, MHD_Pollfd::fd, INTERNAL_ERROR, MHD_CONNECTION_BODY_RECEIVED, MHD_CONNECTION_BODY_SENT, MHD_CONNECTION_CHUNKED_BODY_READY, MHD_CONNECTION_CHUNKED_BODY_UNREADY, MHD_CONNECTION_CLOSED, MHD_CONNECTION_CONTINUE_SENDING, MHD_CONNECTION_CONTINUE_SENT, MHD_CONNECTION_FOOTER_PART_RECEIVED, MHD_CONNECTION_FOOTERS_RECEIVED, MHD_CONNECTION_FOOTERS_SENDING, MHD_CONNECTION_FOOTERS_SENT, MHD_CONNECTION_HEADER_PART_RECEIVED, MHD_CONNECTION_HEADERS_PROCESSED, MHD_CONNECTION_HEADERS_RECEIVED, MHD_CONNECTION_HEADERS_SENDING, MHD_CONNECTION_HEADERS_SENT, MHD_CONNECTION_INIT, MHD_CONNECTION_NORMAL_BODY_READY, MHD_CONNECTION_NORMAL_BODY_UNREADY, MHD_CONNECTION_URL_RECEIVED, MHD_HTTP_INTERNAL_SERVER_ERROR, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, MHD_HTTP_REQUEST_URI_TOO_LONG, MHD_NO, MHD_POLL_ACTION_IN, MHD_POLL_ACTION_OUT, MHD_pool_create(), MHD_TLS_CONNECTION_INIT, MHD_USE_SELECT_INTERNALLY, MHD_USE_THREAD_PER_CONNECTION, MHD_YES, NULL, MHD_Daemon::options, MHD_Connection::pool, MHD_Daemon::pool_size, MHD_Connection::read_buffer_offset, MHD_Connection::read_buffer_size, MHD_Connection::read_closed, REQUEST_TOO_BIG, MHD_Connection::socket_fd, MHD_Connection::state, transmit_error_response(), try_grow_read_buffer(), and MHD_Connection::url.

Referenced by MHD_connection_get_fdset(), and MHD_handle_connection().

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int MHD_connection_handle_idle ( struct MHD_Connection connection  ) 

This function was created to handle per-connection processing that has to happen even if the socket cannot be read or written to. All implementations (multithreaded, external select, internal select) call this function.

Returns:
MHD_YES if we should continue to process the connection (not dead yet), MHD_NO if it died

Definition at line 1921 of file connection.c.

References build_header_response(), call_connection_handler(), MHD_Connection::client_aware, MHD_Connection::client_context, connection_close_error(), MHD_Daemon::connection_timeout, MHD_Connection::continue_message_write_offset, MHD_Response::crc, MHD_Connection::daemon, EXTRA_CHECK, get_next_header_line(), MHD_Connection::have_chunked_upload, MHD_Connection::headers_received, HTTP_100_CONTINUE, MHD_Connection::last_activity, MHD_Connection::method, MHD_CONNECTION_BODY_RECEIVED, MHD_CONNECTION_BODY_SENT, MHD_CONNECTION_CHUNKED_BODY_READY, MHD_CONNECTION_CHUNKED_BODY_UNREADY, MHD_connection_close(), MHD_CONNECTION_CLOSED, MHD_CONNECTION_CONTINUE_SENDING, MHD_CONNECTION_CONTINUE_SENT, MHD_CONNECTION_FOOTER_PART_RECEIVED, MHD_CONNECTION_FOOTERS_RECEIVED, MHD_CONNECTION_FOOTERS_SENDING, MHD_CONNECTION_FOOTERS_SENT, MHD_CONNECTION_HEADER_PART_RECEIVED, MHD_CONNECTION_HEADERS_PROCESSED, MHD_CONNECTION_HEADERS_RECEIVED, MHD_CONNECTION_HEADERS_SENDING, MHD_CONNECTION_HEADERS_SENT, MHD_CONNECTION_INIT, MHD_CONNECTION_NORMAL_BODY_READY, MHD_CONNECTION_NORMAL_BODY_UNREADY, MHD_CONNECTION_URL_RECEIVED, MHD_destroy_response(), MHD_FOOTER_KIND, MHD_HEADER_KIND, MHD_HTTP_BAD_REQUEST, MHD_HTTP_HEADER_CONNECTION, MHD_HTTP_VERSION_1_1, MHD_lookup_connection_value(), MHD_NO, MHD_pool_destroy(), MHD_pool_reset(), MHD_REQUEST_TERMINATED_COMPLETED_OK, MHD_REQUEST_TERMINATED_TIMEOUT_REACHED, MHD_SIZE_UNKNOWN, MHD_YES, MHD_Response::mutex, need_100_continue(), MHD_Daemon::notify_completed, NULL, parse_connection_headers(), parse_initial_message_line(), MHD_Connection::pool, process_broken_line(), process_header_line(), process_request_body(), MHD_Connection::read_buffer, MHD_Connection::read_buffer_offset, MHD_Connection::read_buffer_size, MHD_Connection::read_closed, MHD_Connection::remaining_upload_size, REQUEST_MALFORMED, MHD_Connection::response, MHD_Connection::response_write_position, MHD_Connection::responseCode, MHD_Connection::socket_fd, MHD_Connection::state, transmit_error_response(), try_ready_chunked_body(), try_ready_normal_body(), MHD_Connection::url, MHD_Connection::version, MHD_Connection::write_buffer, MHD_Connection::write_buffer_append_offset, MHD_Connection::write_buffer_send_offset, and MHD_Connection::write_buffer_size.

Referenced by MHD_set_http_callbacks_(), and MHD_tls_connection_handle_idle().

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int MHD_connection_handle_read ( struct MHD_Connection connection  ) 

This function handles a particular connection when it has been determined that there is data to be read off a socket. All implementations (multithreaded, external select, internal select) call this function to handle reads.

Returns:
MHD_YES if we should continue to process the connection (not dead yet), MHD_NO if it died

Definition at line 1705 of file connection.c.

References connection_close_error(), MHD_Connection::daemon, do_read(), MHD_Connection::last_activity, MHD_BUF_INC_SIZE, MHD_CONNECTION_BODY_RECEIVED, MHD_CONNECTION_CLOSED, MHD_CONNECTION_CONTINUE_SENDING, MHD_CONNECTION_CONTINUE_SENT, MHD_CONNECTION_FOOTER_PART_RECEIVED, MHD_CONNECTION_HEADER_PART_RECEIVED, MHD_CONNECTION_HEADERS_PROCESSED, MHD_CONNECTION_HEADERS_RECEIVED, MHD_CONNECTION_INIT, MHD_CONNECTION_URL_RECEIVED, MHD_NO, MHD_pool_reallocate(), MHD_YES, NULL, MHD_Connection::pool, MHD_Connection::read_buffer, MHD_Connection::read_buffer_offset, MHD_Connection::read_buffer_size, MHD_Connection::read_closed, MHD_Connection::socket_fd, MHD_Connection::state, and try_grow_read_buffer().

Referenced by MHD_set_http_callbacks_(), and MHD_tls_connection_handle_read().

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int MHD_connection_handle_write ( struct MHD_Connection connection  ) 

This function was created to handle writes to sockets when it has been determined that the socket can be written to. All implementations (multithreaded, external select, internal select) call this function

Returns:
MHD_YES if we should continue to process the connection (not dead yet), MHD_NO if it died

Definition at line 1768 of file connection.c.

References check_write_done(), connection_close_error(), MHD_Connection::continue_message_write_offset, MHD_Response::crc, MHD_Connection::daemon, MHD_Response::data, MHD_Response::data_size, MHD_Response::data_start, do_write(), EXTRA_CHECK, FPRINTF, HTTP_100_CONTINUE, MHD_Connection::last_activity, MHD_CONNECTION_BODY_RECEIVED, MHD_CONNECTION_BODY_SENT, MHD_CONNECTION_CHUNKED_BODY_READY, MHD_CONNECTION_CHUNKED_BODY_UNREADY, MHD_CONNECTION_CLOSED, MHD_CONNECTION_CONTINUE_SENDING, MHD_CONNECTION_CONTINUE_SENT, MHD_CONNECTION_FOOTER_PART_RECEIVED, MHD_CONNECTION_FOOTERS_RECEIVED, MHD_CONNECTION_FOOTERS_SENDING, MHD_CONNECTION_FOOTERS_SENT, MHD_CONNECTION_HEADER_PART_RECEIVED, MHD_CONNECTION_HEADERS_PROCESSED, MHD_CONNECTION_HEADERS_RECEIVED, MHD_CONNECTION_HEADERS_SENDING, MHD_CONNECTION_HEADERS_SENT, MHD_CONNECTION_INIT, MHD_CONNECTION_NORMAL_BODY_READY, MHD_CONNECTION_NORMAL_BODY_UNREADY, MHD_CONNECTION_URL_RECEIVED, MHD_NO, MHD_TLS_CONNECTION_INIT, MHD_YES, MHD_Response::mutex, NULL, MHD_Connection::response, MHD_Connection::response_write_position, MHD_Connection::send_cls, MHD_Connection::socket_fd, MHD_Connection::state, STRERROR, MHD_Response::total_size, and try_ready_normal_body().

Referenced by MHD_set_http_callbacks_(), and MHD_tls_connection_handle_write().

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void MHD_set_http_callbacks_ ( struct MHD_Connection connection  ) 

Definition at line 2267 of file connection.c.

References MHD_Connection::idle_handler, MHD_connection_handle_idle(), MHD_connection_handle_read(), MHD_connection_handle_write(), MHD_Connection::read_handler, and MHD_Connection::write_handler.

Referenced by MHD_accept_connection().

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