Mercurial > hg > nginx
annotate src/core/ngx_hash.h @ 8006:32b0ba4855a6
HTTP/2: made it possible to flush response headers (ticket #1743).
Response headers can be buffered in the SSL buffer. But stream's fake
connection buffered flag did not reflect this, so any attempts to flush
the buffer without sending additional data were stopped by the write filter.
It does not seem to be possible to reflect this in fc->buffered though, as
we never known if main connection's c->buffered corresponds to the particular
stream or not. As such, fc->buffered might prevent request finalization
due to sending data on some other stream.
Fix is to implement handling of flush buffers when the c->need_flush_buf
flag is set, similarly to the existing last buffer handling. The same
flag is now used for UDP sockets in the stream module instead of explicit
checking of c->type.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 03 Feb 2022 01:44:38 +0300 |
parents | d620f497c50f |
children | f8f6b9fee66a |
rev | line source |
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507 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
507 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_HASH_H_INCLUDED_ | |
9 #define _NGX_HASH_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 | |
16 typedef struct { | |
589 | 17 void *value; |
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18 u_short len; |
589 | 19 u_char name[1]; |
20 } ngx_hash_elt_t; | |
507 | 21 |
589 | 22 |
23 typedef struct { | |
24 ngx_hash_elt_t **buckets; | |
25 ngx_uint_t size; | |
507 | 26 } ngx_hash_t; |
27 | |
28 | |
29 typedef struct { | |
589 | 30 ngx_hash_t hash; |
31 void *value; | |
32 } ngx_hash_wildcard_t; | |
33 | |
34 | |
35 typedef struct { | |
36 ngx_str_t key; | |
37 ngx_uint_t key_hash; | |
38 void *value; | |
39 } ngx_hash_key_t; | |
40 | |
41 | |
42 typedef ngx_uint_t (*ngx_hash_key_pt) (u_char *data, size_t len); | |
43 | |
44 | |
45 typedef struct { | |
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46 ngx_hash_t hash; |
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47 ngx_hash_wildcard_t *wc_head; |
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48 ngx_hash_wildcard_t *wc_tail; |
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49 } ngx_hash_combined_t; |
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50 |
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51 |
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52 typedef struct { |
589 | 53 ngx_hash_t *hash; |
54 ngx_hash_key_pt key; | |
55 | |
56 ngx_uint_t max_size; | |
57 ngx_uint_t bucket_size; | |
58 | |
59 char *name; | |
60 ngx_pool_t *pool; | |
61 ngx_pool_t *temp_pool; | |
62 } ngx_hash_init_t; | |
63 | |
64 | |
593 | 65 #define NGX_HASH_SMALL 1 |
66 #define NGX_HASH_LARGE 2 | |
67 | |
68 #define NGX_HASH_LARGE_ASIZE 16384 | |
69 #define NGX_HASH_LARGE_HSIZE 10007 | |
70 | |
71 #define NGX_HASH_WILDCARD_KEY 1 | |
597 | 72 #define NGX_HASH_READONLY_KEY 2 |
593 | 73 |
74 | |
75 typedef struct { | |
76 ngx_uint_t hsize; | |
77 | |
78 ngx_pool_t *pool; | |
79 ngx_pool_t *temp_pool; | |
80 | |
81 ngx_array_t keys; | |
82 ngx_array_t *keys_hash; | |
83 | |
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84 ngx_array_t dns_wc_head; |
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85 ngx_array_t *dns_wc_head_hash; |
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86 |
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87 ngx_array_t dns_wc_tail; |
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88 ngx_array_t *dns_wc_tail_hash; |
593 | 89 } ngx_hash_keys_arrays_t; |
90 | |
91 | |
589 | 92 typedef struct { |
93 ngx_uint_t hash; | |
94 ngx_str_t key; | |
95 ngx_str_t value; | |
649 | 96 u_char *lowcase_key; |
507 | 97 } ngx_table_elt_t; |
98 | |
99 | |
589 | 100 void *ngx_hash_find(ngx_hash_t *hash, ngx_uint_t key, u_char *name, size_t len); |
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101 void *ngx_hash_find_wc_head(ngx_hash_wildcard_t *hwc, u_char *name, size_t len); |
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102 void *ngx_hash_find_wc_tail(ngx_hash_wildcard_t *hwc, u_char *name, size_t len); |
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103 void *ngx_hash_find_combined(ngx_hash_combined_t *hash, ngx_uint_t key, |
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104 u_char *name, size_t len); |
589 | 105 |
106 ngx_int_t ngx_hash_init(ngx_hash_init_t *hinit, ngx_hash_key_t *names, | |
107 ngx_uint_t nelts); | |
108 ngx_int_t ngx_hash_wildcard_init(ngx_hash_init_t *hinit, ngx_hash_key_t *names, | |
109 ngx_uint_t nelts); | |
110 | |
649 | 111 #define ngx_hash(key, c) ((ngx_uint_t) key * 31 + c) |
589 | 112 ngx_uint_t ngx_hash_key(u_char *data, size_t len); |
113 ngx_uint_t ngx_hash_key_lc(u_char *data, size_t len); | |
2136 | 114 ngx_uint_t ngx_hash_strlow(u_char *dst, u_char *src, size_t n); |
115 | |
589 | 116 |
593 | 117 ngx_int_t ngx_hash_keys_array_init(ngx_hash_keys_arrays_t *ha, ngx_uint_t type); |
118 ngx_int_t ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, | |
119 void *value, ngx_uint_t flags); | |
120 | |
589 | 121 |
507 | 122 #endif /* _NGX_HASH_H_INCLUDED_ */ |