163 lines
4.3 KiB
C
163 lines
4.3 KiB
C
/*
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* Spdylay - SPDY Library
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*
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* Copyright (c) 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 SPDYLAY_H
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#define SPDYLAY_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#include <stdint.h>
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typedef enum {
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SPDYLAY_ERR_NOMEM = -500,
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SPDYLAY_ERR_INVALID_ARGUMENT = -501,
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SPDYLAY_ERR_ZLIB = -502,
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SPDYLAY_ERR_ZLIB_BUF = -503,
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SPDYLAY_ERR_WOULDBLOCK = -504,
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SPDYLAY_ERR_PROTO = -505,
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SPDYLAY_ERR_CALLBACK_FAILURE = -505,
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SPDYLAY_ERR_INVALID_FRAME = -506,
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} spdylay_error;
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typedef enum {
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SPDYLAY_MSG_MORE
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} spdylay_io_flag;
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typedef enum {
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SPDYLAY_SYN_STREAM = 1,
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SPDYLAY_SYN_REPLY = 2,
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SPDYLAY_RST_STREAM = 3,
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SPDYLAY_SETTINGS = 4,
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SPDYLAY_NOOP = 5,
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SPDYLAY_PING = 6,
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SPDYLAY_GOAWAY = 7,
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} spdylay_frame_type;
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typedef enum {
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SPDYLAY_FLAG_FIN = 1
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} spdylay_flag;
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typedef enum {
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SPDYLAY_PROTOCOL_ERROR = 1,
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SPDYLAY_INVALID_STREAM = 2,
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SPDYLAY_REFUSED_STREAM = 3,
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SPDYLAY_UNSUPPORTED_VERSION = 4,
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SPDYLAY_CANCEL = 5,
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SPDYLAY_INTERNAL_ERROR = 6,
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SPDYLAY_FLOW_CONTROL_ERROR = 7
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} spdylay_status_code;
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typedef struct {
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uint16_t version;
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uint16_t type;
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uint8_t flags;
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int32_t length;
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} spdylay_ctrl_hd;
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typedef struct {
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spdylay_ctrl_hd hd;
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int32_t stream_id;
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int32_t assoc_stream_id;
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uint8_t pri;
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char **nv;
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} spdylay_syn_stream;
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typedef struct {
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spdylay_ctrl_hd hd;
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int32_t stream_id;
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char **nv;
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} spdylay_syn_reply;
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typedef struct {
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spdylay_ctrl_hd hd;
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int32_t stream_id;
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uint32_t status_code;
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} spdylay_rst_stream;
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typedef union {
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spdylay_syn_stream syn_stream;
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spdylay_syn_reply syn_reply;
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spdylay_rst_stream rst_stream;
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} spdylay_frame;
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struct spdylay_session;
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typedef struct spdylay_session spdylay_session;
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typedef ssize_t (*spdylay_send_callback)
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(spdylay_session *session,
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const uint8_t *data, size_t length, int flags, void *user_data);
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typedef ssize_t (*spdylay_recv_callback)
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(spdylay_session *session,
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uint8_t *buf, size_t length, int flags, void *user_data);
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/*
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* Callback function invoked by spdylay_session_recv() when a control
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* frame is arrived.
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*/
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typedef void (*spdylay_on_ctrl_recv_callback)
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(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
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void *user_data);
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/*
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* Callback function invoked by spdylay_session_recv() when an invalid
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* control frame is arrived, which typically the case where RST_STREAM
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* will be sent
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*/
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typedef void (*spdylay_on_invalid_ctrl_recv_callback)
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(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
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void *user_data);
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typedef struct {
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spdylay_send_callback send_callback;
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spdylay_recv_callback recv_callback;
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spdylay_on_ctrl_recv_callback on_ctrl_recv_callback;
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spdylay_on_invalid_ctrl_recv_callback on_invalid_ctrl_recv_callback;
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} spdylay_session_callbacks;
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int spdylay_session_client_new(spdylay_session **session_ptr,
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const spdylay_session_callbacks *callbacks,
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void *user_data);
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void spdylay_session_del(spdylay_session *session);
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int spdylay_session_send(spdylay_session *session);
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int spdylay_session_recv(spdylay_session *session);
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int spdylay_session_want_read(spdylay_session *session);
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int spdylay_session_want_write(spdylay_session *session);
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int spdylay_req_submit(spdylay_session *session, const char *path);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDYLAY_H */
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