9e303ef71c
Both client and server are supported on native builds (as usual). SSL server is still not supported, but will soon be possible with this new library. The API stays the same, we just need to work out potential issues due to this big library switch.
143 lines
4.4 KiB
C++
143 lines
4.4 KiB
C++
/*
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* Wslay - The WebSocket Library
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*
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* Copyright (c) 2011, 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef WSLAY_EVENT_H
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#define WSLAY_EVENT_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <wslay/wslay.h>
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struct wslay_stack;
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struct wslay_queue;
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struct wslay_event_byte_chunk {
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uint8_t *data;
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size_t data_length;
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};
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struct wslay_event_imsg {
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uint8_t fin;
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uint8_t rsv;
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uint8_t opcode;
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uint32_t utf8state;
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struct wslay_queue *chunks;
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size_t msg_length;
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};
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enum wslay_event_msg_type {
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WSLAY_NON_FRAGMENTED,
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WSLAY_FRAGMENTED
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};
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struct wslay_event_omsg {
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uint8_t fin;
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uint8_t opcode;
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uint8_t rsv;
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enum wslay_event_msg_type type;
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uint8_t *data;
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size_t data_length;
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union wslay_event_msg_source source;
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wslay_event_fragmented_msg_callback read_callback;
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};
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struct wslay_event_frame_user_data {
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wslay_event_context_ptr ctx;
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void *user_data;
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};
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enum wslay_event_close_status {
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WSLAY_CLOSE_RECEIVED = 1 << 0,
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WSLAY_CLOSE_QUEUED = 1 << 1,
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WSLAY_CLOSE_SENT = 1 << 2
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};
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enum wslay_event_config {
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WSLAY_CONFIG_NO_BUFFERING = 1 << 0
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};
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struct wslay_event_context {
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/* config status, bitwise OR of enum wslay_event_config values*/
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uint32_t config;
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/* maximum message length that can be received */
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uint64_t max_recv_msg_length;
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/* 1 if initialized for server, otherwise 0 */
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uint8_t server;
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/* bitwise OR of enum wslay_event_close_status values */
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uint8_t close_status;
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/* status code in received close control frame */
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uint16_t status_code_recv;
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/* status code in sent close control frame */
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uint16_t status_code_sent;
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wslay_frame_context_ptr frame_ctx;
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/* 1 if reading is enabled, otherwise 0. Upon receiving close
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control frame this value set to 0. If any errors in read
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operation will also set this value to 0. */
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uint8_t read_enabled;
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/* 1 if writing is enabled, otherwise 0 Upon completing sending
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close control frame, this value set to 0. If any errors in write
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opration will also set this value to 0. */
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uint8_t write_enabled;
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/* imsg buffer to allow interleaved control frame between
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non-control frames. */
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struct wslay_event_imsg imsgs[2];
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/* Pointer to imsgs to indicate current used buffer. */
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struct wslay_event_imsg *imsg;
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/* payload length of frame currently being received. */
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uint64_t ipayloadlen;
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/* next byte offset of payload currently being received. */
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uint64_t ipayloadoff;
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/* error value set by user callback */
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int error;
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/* Pointer to the message currently being sent. NULL if no message
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is currently sent. */
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struct wslay_event_omsg *omsg;
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/* Queue for non-control frames */
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struct wslay_queue/*<wslay_omsg*>*/ *send_queue;
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/* Queue for control frames */
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struct wslay_queue/*<wslay_omsg*>*/ *send_ctrl_queue;
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/* Size of send_queue + size of send_ctrl_queue */
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size_t queued_msg_count;
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/* The sum of message length in send_queue */
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size_t queued_msg_length;
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/* Buffer used for fragmented messages */
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uint8_t obuf[4096];
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uint8_t *obuflimit;
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uint8_t *obufmark;
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/* payload length of frame currently being sent. */
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uint64_t opayloadlen;
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/* next byte offset of payload currently being sent. */
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uint64_t opayloadoff;
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struct wslay_event_callbacks callbacks;
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struct wslay_event_frame_user_data frame_user_data;
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void *user_data;
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uint8_t allowed_rsv_bits;
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};
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#endif /* WSLAY_EVENT_H */
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