1 /*
2 * nghttp2 - HTTP/2 C Library
3 *
4 * Copyright (c) 2012 Tatsuhiro Tsujikawa
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25 #include "nghttp2_outbound_item.h"
26
27 #include <assert.h>
28 #include <string.h>
29
nghttp2_outbound_item_init(nghttp2_outbound_item * item)30 void nghttp2_outbound_item_init(nghttp2_outbound_item *item) {
31 item->cycle = 0;
32 item->qnext = NULL;
33 item->queued = 0;
34
35 memset(&item->aux_data, 0, sizeof(nghttp2_aux_data));
36 }
37
nghttp2_outbound_item_free(nghttp2_outbound_item * item,nghttp2_mem * mem)38 void nghttp2_outbound_item_free(nghttp2_outbound_item *item, nghttp2_mem *mem) {
39 nghttp2_frame *frame;
40
41 if (item == NULL) {
42 return;
43 }
44
45 frame = &item->frame;
46
47 switch (frame->hd.type) {
48 case NGHTTP2_DATA:
49 nghttp2_frame_data_free(&frame->data);
50 break;
51 case NGHTTP2_HEADERS:
52 nghttp2_frame_headers_free(&frame->headers, mem);
53 break;
54 case NGHTTP2_PRIORITY:
55 nghttp2_frame_priority_free(&frame->priority);
56 break;
57 case NGHTTP2_RST_STREAM:
58 nghttp2_frame_rst_stream_free(&frame->rst_stream);
59 break;
60 case NGHTTP2_SETTINGS:
61 nghttp2_frame_settings_free(&frame->settings, mem);
62 break;
63 case NGHTTP2_PUSH_PROMISE:
64 nghttp2_frame_push_promise_free(&frame->push_promise, mem);
65 break;
66 case NGHTTP2_PING:
67 nghttp2_frame_ping_free(&frame->ping);
68 break;
69 case NGHTTP2_GOAWAY:
70 nghttp2_frame_goaway_free(&frame->goaway, mem);
71 break;
72 case NGHTTP2_WINDOW_UPDATE:
73 nghttp2_frame_window_update_free(&frame->window_update);
74 break;
75 default: {
76 nghttp2_ext_aux_data *aux_data;
77
78 aux_data = &item->aux_data.ext;
79
80 if (aux_data->builtin == 0) {
81 nghttp2_frame_extension_free(&frame->ext);
82 break;
83 }
84
85 switch (frame->hd.type) {
86 case NGHTTP2_ALTSVC:
87 nghttp2_frame_altsvc_free(&frame->ext, mem);
88 break;
89 case NGHTTP2_ORIGIN:
90 nghttp2_frame_origin_free(&frame->ext, mem);
91 break;
92 default:
93 assert(0);
94 break;
95 }
96 }
97 }
98 }
99
nghttp2_outbound_queue_init(nghttp2_outbound_queue * q)100 void nghttp2_outbound_queue_init(nghttp2_outbound_queue *q) {
101 q->head = q->tail = NULL;
102 q->n = 0;
103 }
104
nghttp2_outbound_queue_push(nghttp2_outbound_queue * q,nghttp2_outbound_item * item)105 void nghttp2_outbound_queue_push(nghttp2_outbound_queue *q,
106 nghttp2_outbound_item *item) {
107 if (q->tail) {
108 q->tail = q->tail->qnext = item;
109 } else {
110 q->head = q->tail = item;
111 }
112 ++q->n;
113 }
114
nghttp2_outbound_queue_pop(nghttp2_outbound_queue * q)115 void nghttp2_outbound_queue_pop(nghttp2_outbound_queue *q) {
116 nghttp2_outbound_item *item;
117 if (!q->head) {
118 return;
119 }
120 item = q->head;
121 q->head = q->head->qnext;
122 item->qnext = NULL;
123 if (!q->head) {
124 q->tail = NULL;
125 }
126 --q->n;
127 }
128