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spdylay/lib/spdylay_stream.c
Tatsuhiro Tsujikawa 82e20192d8 Added functions to process received SETTINGS frame.
Now remote and local settings are stored separately.
The initial window size is included in SETTINGS frame, all active stream's
window sizes are now updated.
Removed the initial_window_size member from spdylay_stream because
it is the same as remote_settings's initial window size.
2012-03-10 00:10:11 +09:00

101 lines
3.5 KiB
C

/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "spdylay_stream.h"
#include <assert.h>
void spdylay_stream_init(spdylay_stream *stream, int32_t stream_id,
uint8_t flags, uint8_t pri,
spdylay_stream_state initial_state,
int32_t initial_window_size,
void *stream_user_data)
{
stream->stream_id = stream_id;
stream->flags = flags;
stream->pri = pri;
stream->state = initial_state;
stream->shut_flags = SPDYLAY_SHUT_NONE;
stream->pushed_streams = NULL;
stream->pushed_streams_length = 0;
stream->pushed_streams_capacity = 0;
stream->stream_user_data = stream_user_data;
stream->deferred_data = NULL;
stream->deferred_flags = SPDYLAY_DEFERRED_NONE;
stream->window_size = initial_window_size;
stream->recv_window_size = 0;
}
void spdylay_stream_free(spdylay_stream *stream)
{
free(stream->pushed_streams);
spdylay_outbound_item_free(stream->deferred_data);
free(stream->deferred_data);
}
void spdylay_stream_shutdown(spdylay_stream *stream, spdylay_shut_flag flag)
{
stream->shut_flags |= flag;
}
int spdylay_stream_add_pushed_stream(spdylay_stream *stream, int32_t stream_id)
{
if(stream->pushed_streams_capacity == stream->pushed_streams_length) {
int32_t *streams;
size_t capacity = stream->pushed_streams_capacity == 0 ?
5 : stream->pushed_streams_capacity*2;
streams = realloc(stream->pushed_streams, capacity*sizeof(uint32_t));
if(streams == NULL) {
return SPDYLAY_ERR_NOMEM;
}
stream->pushed_streams = streams;
stream->pushed_streams_capacity = capacity;
}
stream->pushed_streams[stream->pushed_streams_length++] = stream_id;
return 0;
}
void spdylay_stream_defer_data(spdylay_stream *stream,
spdylay_outbound_item *data,
uint8_t flags)
{
assert(stream->deferred_data == NULL);
stream->deferred_data = data;
stream->deferred_flags = flags;
}
void spdylay_stream_detach_deferred_data(spdylay_stream *stream)
{
stream->deferred_data = NULL;
stream->deferred_flags = SPDYLAY_DEFERRED_NONE;
}
void spdylay_stream_update_initial_window_size(spdylay_stream *stream,
int32_t new_initial_window_size,
int32_t old_initial_window_size)
{
stream->window_size =
new_initial_window_size-(old_initial_window_size-stream->window_size);
}