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