120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
/*
|
|
* nghttp2 - HTTP/2.0 C 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 "nghttp2_stream.h"
|
|
|
|
#include <assert.h>
|
|
|
|
void nghttp2_stream_init(nghttp2_stream *stream, int32_t stream_id,
|
|
uint8_t flags, int32_t pri,
|
|
nghttp2_stream_state initial_state,
|
|
uint8_t remote_flow_control,
|
|
uint8_t local_flow_control,
|
|
int32_t remote_initial_window_size,
|
|
int32_t local_initial_window_size,
|
|
void *stream_user_data)
|
|
{
|
|
nghttp2_map_entry_init(&stream->map_entry, stream_id);
|
|
stream->stream_id = stream_id;
|
|
stream->flags = flags;
|
|
stream->pri = pri;
|
|
stream->state = initial_state;
|
|
stream->shut_flags = NGHTTP2_SHUT_NONE;
|
|
stream->stream_user_data = stream_user_data;
|
|
stream->deferred_data = NULL;
|
|
stream->deferred_flags = NGHTTP2_DEFERRED_NONE;
|
|
stream->remote_flow_control = remote_flow_control;
|
|
stream->local_flow_control = local_flow_control;
|
|
stream->remote_window_size = remote_initial_window_size;
|
|
stream->local_window_size = local_initial_window_size;
|
|
stream->recv_window_size = 0;
|
|
stream->recv_reduction = 0;
|
|
}
|
|
|
|
void nghttp2_stream_free(nghttp2_stream *stream)
|
|
{
|
|
nghttp2_outbound_item_free(stream->deferred_data);
|
|
free(stream->deferred_data);
|
|
}
|
|
|
|
void nghttp2_stream_shutdown(nghttp2_stream *stream, nghttp2_shut_flag flag)
|
|
{
|
|
stream->shut_flags |= flag;
|
|
}
|
|
|
|
void nghttp2_stream_defer_data(nghttp2_stream *stream,
|
|
nghttp2_outbound_item *data,
|
|
uint8_t flags)
|
|
{
|
|
assert(stream->deferred_data == NULL);
|
|
stream->deferred_data = data;
|
|
stream->deferred_flags = flags;
|
|
}
|
|
|
|
void nghttp2_stream_detach_deferred_data(nghttp2_stream *stream)
|
|
{
|
|
stream->deferred_data = NULL;
|
|
stream->deferred_flags = NGHTTP2_DEFERRED_NONE;
|
|
}
|
|
|
|
static int update_initial_window_size
|
|
(int32_t *window_size_ptr,
|
|
int32_t new_initial_window_size,
|
|
int32_t old_initial_window_size)
|
|
{
|
|
int64_t new_window_size = (int64_t)(*window_size_ptr) +
|
|
new_initial_window_size - old_initial_window_size;
|
|
if(INT32_MIN > new_window_size ||
|
|
new_window_size > NGHTTP2_MAX_WINDOW_SIZE) {
|
|
return -1;
|
|
}
|
|
*window_size_ptr = new_window_size;
|
|
return 0;
|
|
}
|
|
|
|
int nghttp2_stream_update_remote_initial_window_size
|
|
(nghttp2_stream *stream,
|
|
int32_t new_initial_window_size,
|
|
int32_t old_initial_window_size)
|
|
{
|
|
return update_initial_window_size(&stream->remote_window_size,
|
|
new_initial_window_size,
|
|
old_initial_window_size);
|
|
}
|
|
|
|
int nghttp2_stream_update_local_initial_window_size
|
|
(nghttp2_stream *stream,
|
|
int32_t new_initial_window_size,
|
|
int32_t old_initial_window_size)
|
|
{
|
|
return update_initial_window_size(&stream->local_window_size,
|
|
new_initial_window_size,
|
|
old_initial_window_size);
|
|
}
|
|
|
|
void nghttp2_stream_promise_fulfilled(nghttp2_stream *stream)
|
|
{
|
|
stream->state = NGHTTP2_STREAM_OPENED;
|
|
}
|