/src/nghttp2/lib/nghttp2_outbound_item.c
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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 | | |
30 | 0 | void nghttp2_outbound_item_init(nghttp2_outbound_item *item) { |
31 | 0 | item->cycle = 0; |
32 | 0 | item->qnext = NULL; |
33 | 0 | item->queued = 0; |
34 | |
|
35 | 0 | memset(&item->aux_data, 0, sizeof(nghttp2_aux_data)); |
36 | 0 | } |
37 | | |
38 | 0 | void nghttp2_outbound_item_free(nghttp2_outbound_item *item, nghttp2_mem *mem) { |
39 | 0 | nghttp2_frame *frame; |
40 | |
|
41 | 0 | if (item == NULL) { |
42 | 0 | return; |
43 | 0 | } |
44 | | |
45 | 0 | frame = &item->frame; |
46 | |
|
47 | 0 | switch (frame->hd.type) { |
48 | 0 | case NGHTTP2_DATA: |
49 | 0 | nghttp2_frame_data_free(&frame->data); |
50 | 0 | break; |
51 | 0 | case NGHTTP2_HEADERS: |
52 | 0 | nghttp2_frame_headers_free(&frame->headers, mem); |
53 | 0 | break; |
54 | 0 | case NGHTTP2_PRIORITY: |
55 | 0 | nghttp2_frame_priority_free(&frame->priority); |
56 | 0 | break; |
57 | 0 | case NGHTTP2_RST_STREAM: |
58 | 0 | nghttp2_frame_rst_stream_free(&frame->rst_stream); |
59 | 0 | break; |
60 | 0 | case NGHTTP2_SETTINGS: |
61 | 0 | nghttp2_frame_settings_free(&frame->settings, mem); |
62 | 0 | break; |
63 | 0 | case NGHTTP2_PUSH_PROMISE: |
64 | 0 | nghttp2_frame_push_promise_free(&frame->push_promise, mem); |
65 | 0 | break; |
66 | 0 | case NGHTTP2_PING: |
67 | 0 | nghttp2_frame_ping_free(&frame->ping); |
68 | 0 | break; |
69 | 0 | case NGHTTP2_GOAWAY: |
70 | 0 | nghttp2_frame_goaway_free(&frame->goaway, mem); |
71 | 0 | break; |
72 | 0 | case NGHTTP2_WINDOW_UPDATE: |
73 | 0 | nghttp2_frame_window_update_free(&frame->window_update); |
74 | 0 | break; |
75 | 0 | default: { |
76 | 0 | nghttp2_ext_aux_data *aux_data; |
77 | |
|
78 | 0 | aux_data = &item->aux_data.ext; |
79 | |
|
80 | 0 | if (aux_data->builtin == 0) { |
81 | 0 | nghttp2_frame_extension_free(&frame->ext); |
82 | 0 | break; |
83 | 0 | } |
84 | | |
85 | 0 | switch (frame->hd.type) { |
86 | 0 | case NGHTTP2_ALTSVC: |
87 | 0 | nghttp2_frame_altsvc_free(&frame->ext, mem); |
88 | 0 | break; |
89 | 0 | case NGHTTP2_ORIGIN: |
90 | 0 | nghttp2_frame_origin_free(&frame->ext, mem); |
91 | 0 | break; |
92 | 0 | default: |
93 | 0 | assert(0); |
94 | 0 | break; |
95 | 0 | } |
96 | 0 | } |
97 | 0 | } |
98 | 0 | } |
99 | | |
100 | 0 | void nghttp2_outbound_queue_init(nghttp2_outbound_queue *q) { |
101 | 0 | q->head = q->tail = NULL; |
102 | 0 | q->n = 0; |
103 | 0 | } |
104 | | |
105 | | void nghttp2_outbound_queue_push(nghttp2_outbound_queue *q, |
106 | 0 | nghttp2_outbound_item *item) { |
107 | 0 | if (q->tail) { |
108 | 0 | q->tail = q->tail->qnext = item; |
109 | 0 | } else { |
110 | 0 | q->head = q->tail = item; |
111 | 0 | } |
112 | 0 | ++q->n; |
113 | 0 | } |
114 | | |
115 | 0 | void nghttp2_outbound_queue_pop(nghttp2_outbound_queue *q) { |
116 | 0 | nghttp2_outbound_item *item; |
117 | 0 | if (!q->head) { |
118 | 0 | return; |
119 | 0 | } |
120 | 0 | item = q->head; |
121 | 0 | q->head = q->head->qnext; |
122 | 0 | item->qnext = NULL; |
123 | 0 | if (!q->head) { |
124 | 0 | q->tail = NULL; |
125 | 0 | } |
126 | 0 | --q->n; |
127 | 0 | } |