nginx: src/http/modules/ngx_http_limit_conn

annotate src/http/modules/ngx_http_limit_conn_module.c @ 5859:ad9116427acf

Limit conn: removed deprecated "limit_zone" directive. It's deprecated since 260d591cb6a3 (1.1.8). The "limit_conn_zone" directive should be used instead.

author	Valentin Bartenev <vbart@nginx.com>
date	Wed, 24 Sep 2014 21:55:19 +0400
parents	00e4459739ed
children	c9787372f16d

rev	line source
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	2 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	3 * Copyright (C) Igor Sysoev
4412 d620f497c50f Copyright updated. Maxim Konovalov <maxim@nginx.com> parents: 4380 diff changeset	4 * Copyright (C) Nginx, Inc.
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	5 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	6
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	7
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	8 #include <ngx_config.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	9 #include <ngx_core.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	10 #include <ngx_http.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	11
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	12
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	13 typedef struct {
981 6fe76f377a62 fix key length and alignment Igor Sysoev <igor@sysoev.ru> parents: 980 diff changeset	14 u_char color;
6fe76f377a62 fix key length and alignment Igor Sysoev <igor@sysoev.ru> parents: 980 diff changeset	15 u_char len;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	16 u_short conn;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	17 u_char data[1];
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	18 } ngx_http_limit_conn_node_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	19
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	20
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	21 typedef struct {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	22 ngx_shm_zone_t *shm_zone;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	23 ngx_rbtree_node_t *node;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	24 } ngx_http_limit_conn_cleanup_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	25
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	26
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	27 typedef struct {
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	28 ngx_rbtree_t *rbtree;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	29 ngx_int_t index;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	30 ngx_str_t var;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	31 } ngx_http_limit_conn_ctx_t;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	32
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	33
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	34 typedef struct {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	35 ngx_shm_zone_t *shm_zone;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	36 ngx_uint_t conn;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	37 } ngx_http_limit_conn_limit_t;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	38
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	39
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	40 typedef struct {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	41 ngx_array_t limits;
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	42 ngx_uint_t log_level;
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	43 ngx_uint_t status_code;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	44 } ngx_http_limit_conn_conf_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	45
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	46
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	47 static ngx_rbtree_node_t ngx_http_limit_conn_lookup(ngx_rbtree_t rbtree,
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	48 ngx_http_variable_value_t *vv, uint32_t hash);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	49 static void ngx_http_limit_conn_cleanup(void *data);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	50 static ngx_inline void ngx_http_limit_conn_cleanup_all(ngx_pool_t *pool);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	51
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	52 static void ngx_http_limit_conn_create_conf(ngx_conf_t cf);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	53 static char ngx_http_limit_conn_merge_conf(ngx_conf_t cf, void *parent,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	54 void *child);
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	55 static char ngx_http_limit_conn_zone(ngx_conf_t cf, ngx_command_t *cmd,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	56 void *conf);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	57 static char ngx_http_limit_conn(ngx_conf_t cf, ngx_command_t *cmd,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	58 void *conf);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	59 static ngx_int_t ngx_http_limit_conn_init(ngx_conf_t *cf);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	60
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	61
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	62 static ngx_conf_enum_t ngx_http_limit_conn_log_levels[] = {
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	63 { ngx_string("info"), NGX_LOG_INFO },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	64 { ngx_string("notice"), NGX_LOG_NOTICE },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	65 { ngx_string("warn"), NGX_LOG_WARN },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	66 { ngx_string("error"), NGX_LOG_ERR },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	67 { ngx_null_string, 0 }
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	68 };
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	69
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	70
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	71 static ngx_conf_num_bounds_t ngx_http_limit_conn_status_bounds = {
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	72 ngx_conf_check_num_bounds, 400, 599
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	73 };
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	74
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	75
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	76 static ngx_command_t ngx_http_limit_conn_commands[] = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	77
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	78 { ngx_string("limit_conn_zone"),
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	79 NGX_HTTP_MAIN_CONF\|NGX_CONF_TAKE2,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	80 ngx_http_limit_conn_zone,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	81 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	82 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	83 NULL },
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	84
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	85 { ngx_string("limit_conn"),
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	86 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE2,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	87 ngx_http_limit_conn,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	88 NGX_HTTP_LOC_CONF_OFFSET,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	89 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	90 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	91
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	92 { ngx_string("limit_conn_log_level"),
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	93 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	94 ngx_conf_set_enum_slot,
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	95 NGX_HTTP_LOC_CONF_OFFSET,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	96 offsetof(ngx_http_limit_conn_conf_t, log_level),
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	97 &ngx_http_limit_conn_log_levels },
23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	98
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	99 { ngx_string("limit_conn_status"),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	100 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	101 ngx_conf_set_num_slot,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	102 NGX_HTTP_LOC_CONF_OFFSET,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	103 offsetof(ngx_http_limit_conn_conf_t, status_code),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	104 &ngx_http_limit_conn_status_bounds },
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	105
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	106 ngx_null_command
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	107 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	108
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	109
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	110 static ngx_http_module_t ngx_http_limit_conn_module_ctx = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	111 NULL, /* preconfiguration */
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	112 ngx_http_limit_conn_init, /* postconfiguration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	113
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	114 NULL, /* create main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	115 NULL, /* init main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	116
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	117 NULL, /* create server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	118 NULL, /* merge server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	119
4499 778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	120 ngx_http_limit_conn_create_conf, /* create location configuration */
778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	121 ngx_http_limit_conn_merge_conf /* merge location configuration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	122 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	123
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	124
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	125 ngx_module_t ngx_http_limit_conn_module = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	126 NGX_MODULE_V1,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	127 &ngx_http_limit_conn_module_ctx, /* module context */
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	128 ngx_http_limit_conn_commands, /* module directives */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	129 NGX_HTTP_MODULE, /* module type */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	130 NULL, /* init master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	131 NULL, /* init module */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	132 NULL, /* init process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	133 NULL, /* init thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	134 NULL, /* exit thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	135 NULL, /* exit process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	136 NULL, /* exit master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	137 NGX_MODULE_V1_PADDING
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	138 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	139
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	140
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	141 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	142 ngx_http_limit_conn_handler(ngx_http_request_t *r)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	143 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	144 size_t len, n;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	145 uint32_t hash;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	146 ngx_uint_t i;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	147 ngx_slab_pool_t *shpool;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	148 ngx_rbtree_node_t *node;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	149 ngx_pool_cleanup_t *cln;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	150 ngx_http_variable_value_t *vv;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	151 ngx_http_limit_conn_ctx_t *ctx;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	152 ngx_http_limit_conn_node_t *lc;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	153 ngx_http_limit_conn_conf_t *lccf;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	154 ngx_http_limit_conn_limit_t *limits;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	155 ngx_http_limit_conn_cleanup_t *lccln;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	157 if (r->main->limit_conn_set) {
984 dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	158 return NGX_DECLINED;
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	159 }
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	160
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	161 lccf = ngx_http_get_module_loc_conf(r, ngx_http_limit_conn_module);
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	162 limits = lccf->limits.elts;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	163
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	164 for (i = 0; i < lccf->limits.nelts; i++) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	165 ctx = limits[i].shm_zone->data;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	166
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	167 vv = ngx_http_get_indexed_variable(r, ctx->index);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	168
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	169 if (vv == NULL \|\| vv->not_found) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	170 continue;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	171 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	172
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	173 len = vv->len;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	174
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	175 if (len == 0) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	176 continue;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	177 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	178
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	179 if (len > 255) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	181 "the value of the \"%V\" variable "
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	182 "is more than 255 bytes: \"%v\"",
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	183 &ctx->var, vv);
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	184 continue;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	185 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	186
4458 2d4ff8bd5649 Limit conn: returned to the old behavior of using the first actual limit on Valentin Bartenev <vbart@nginx.com> parents: 4412 diff changeset	187 r->main->limit_conn_set = 1;
2d4ff8bd5649 Limit conn: returned to the old behavior of using the first actual limit on Valentin Bartenev <vbart@nginx.com> parents: 4412 diff changeset	188
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	189 hash = ngx_crc32_short(vv->data, len);
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	190
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	191 shpool = (ngx_slab_pool_t *) limits[i].shm_zone->shm.addr;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	192
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	193 ngx_shmtx_lock(&shpool->mutex);
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	194
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	195 node = ngx_http_limit_conn_lookup(ctx->rbtree, vv, hash);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	196
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	197 if (node == NULL) {
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	198
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	199 n = offsetof(ngx_rbtree_node_t, color)
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	200 + offsetof(ngx_http_limit_conn_node_t, data)
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	201 + len;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	202
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	203 node = ngx_slab_alloc_locked(shpool, n);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	204
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	205 if (node == NULL) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	206 ngx_shmtx_unlock(&shpool->mutex);
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	207 ngx_http_limit_conn_cleanup_all(r->pool);
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	208 return lccf->status_code;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	209 }
2373 f4603d71f532 log 503 error reason Igor Sysoev <igor@sysoev.ru> parents: 2372 diff changeset	210
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	211 lc = (ngx_http_limit_conn_node_t *) &node->color;
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	212
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	213 node->key = hash;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	214 lc->len = (u_char) len;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	215 lc->conn = 1;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	216 ngx_memcpy(lc->data, vv->data, len);
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	217
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	218 ngx_rbtree_insert(ctx->rbtree, node);
1012 11ffb8e4753f stop rbtree search early if equal hash was found Igor Sysoev <igor@sysoev.ru> parents: 1011 diff changeset	219
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	220 } else {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	221
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	222 lc = (ngx_http_limit_conn_node_t *) &node->color;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	223
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	224 if ((ngx_uint_t) lc->conn >= limits[i].conn) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	225
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	226 ngx_shmtx_unlock(&shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	227
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	228 ngx_log_error(lccf->log_level, r->connection->log, 0,
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	229 "limiting connections by zone \"%V\"",
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	230 &limits[i].shm_zone->shm.name);
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	231
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	232 ngx_http_limit_conn_cleanup_all(r->pool);
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	233 return lccf->status_code;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	234 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	235
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	236 lc->conn++;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	237 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	238
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	239 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
4756 daa60662b7b5 Fixed debugging messages to account that limit_zone was renamed to limit_conn. Ruslan Ermilov <ru@nginx.com> parents: 4499 diff changeset	240 "limit conn: %08XD %d", node->key, lc->conn);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	241
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	242 ngx_shmtx_unlock(&shpool->mutex);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	243
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	244 cln = ngx_pool_cleanup_add(r->pool,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	245 sizeof(ngx_http_limit_conn_cleanup_t));
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	246 if (cln == NULL) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	247 return NGX_HTTP_INTERNAL_SERVER_ERROR;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	248 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	249
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	250 cln->handler = ngx_http_limit_conn_cleanup;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	251 lccln = cln->data;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	252
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	253 lccln->shm_zone = limits[i].shm_zone;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	254 lccln->node = node;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	255 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	256
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	257 return NGX_DECLINED;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	258 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	259
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	260
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	261 static void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	262 ngx_http_limit_conn_rbtree_insert_value(ngx_rbtree_node_t *temp,
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	263 ngx_rbtree_node_t node, ngx_rbtree_node_t sentinel)
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	264 {
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	265 ngx_rbtree_node_t **p;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	266 ngx_http_limit_conn_node_t lcn, lcnt;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	267
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	268 for ( ;; ) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	269
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	270 if (node->key < temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	271
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	272 p = &temp->left;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	273
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	274 } else if (node->key > temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	275
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	276 p = &temp->right;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	277
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	278 } else { /* node->key == temp->key */
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	279
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	280 lcn = (ngx_http_limit_conn_node_t *) &node->color;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	281 lcnt = (ngx_http_limit_conn_node_t *) &temp->color;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	282
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	283 p = (ngx_memn2cmp(lcn->data, lcnt->data, lcn->len, lcnt->len) < 0)
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	284 ? &temp->left : &temp->right;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	285 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	286
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	287 if (*p == sentinel) {
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	288 break;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	289 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	290
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	291 temp = *p;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	292 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	293
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	294 *p = node;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	295 node->parent = temp;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	296 node->left = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	297 node->right = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	298 ngx_rbt_red(node);
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	299 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	300
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	301
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	302 static ngx_rbtree_node_t *
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	303 ngx_http_limit_conn_lookup(ngx_rbtree_t rbtree, ngx_http_variable_value_t vv,
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	304 uint32_t hash)
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	305 {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	306 ngx_int_t rc;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	307 ngx_rbtree_node_t node, sentinel;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	308 ngx_http_limit_conn_node_t *lcn;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	309
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	310 node = rbtree->root;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	311 sentinel = rbtree->sentinel;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	312
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	313 while (node != sentinel) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	314
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	315 if (hash < node->key) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	316 node = node->left;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	317 continue;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	318 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	319
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	320 if (hash > node->key) {
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	321 node = node->right;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	322 continue;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	323 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	324
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	325 /* hash == node->key */
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	326
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	327 lcn = (ngx_http_limit_conn_node_t *) &node->color;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	328
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	329 rc = ngx_memn2cmp(vv->data, lcn->data,
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	330 (size_t) vv->len, (size_t) lcn->len);
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	331 if (rc == 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	332 return node;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	333 }
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	334
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4458 diff changeset	335 node = (rc < 0) ? node->left : node->right;
4270 3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	336 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	337
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	338 return NULL;
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	339 }
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	340
3544987fef85 Limit zone: rbtree lookup moved to a separate function. Valentin Bartenev <vbart@nginx.com> parents: 3186 diff changeset	341
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	342 static void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	343 ngx_http_limit_conn_cleanup(void *data)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	344 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	345 ngx_http_limit_conn_cleanup_t *lccln = data;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	346
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	347 ngx_slab_pool_t *shpool;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	348 ngx_rbtree_node_t *node;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	349 ngx_http_limit_conn_ctx_t *ctx;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	350 ngx_http_limit_conn_node_t *lc;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	351
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	352 ctx = lccln->shm_zone->data;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	353 shpool = (ngx_slab_pool_t *) lccln->shm_zone->shm.addr;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	354 node = lccln->node;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	355 lc = (ngx_http_limit_conn_node_t *) &node->color;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	356
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	357 ngx_shmtx_lock(&shpool->mutex);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	358
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	359 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, lccln->shm_zone->shm.log, 0,
4756 daa60662b7b5 Fixed debugging messages to account that limit_zone was renamed to limit_conn. Ruslan Ermilov <ru@nginx.com> parents: 4499 diff changeset	360 "limit conn cleanup: %08XD %d", node->key, lc->conn);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	361
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	362 lc->conn--;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	363
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	364 if (lc->conn == 0) {
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	365 ngx_rbtree_delete(ctx->rbtree, node);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	366 ngx_slab_free_locked(shpool, node);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	367 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	368
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	369 ngx_shmtx_unlock(&shpool->mutex);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	370 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	371
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	372
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	373 static ngx_inline void
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	374 ngx_http_limit_conn_cleanup_all(ngx_pool_t *pool)
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	375 {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	376 ngx_pool_cleanup_t *cln;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	377
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	378 cln = pool->cleanup;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	379
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	380 while (cln && cln->handler == ngx_http_limit_conn_cleanup) {
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	381 ngx_http_limit_conn_cleanup(cln->data);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	382 cln = cln->next;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	383 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	384
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	385 pool->cleanup = cln;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	386 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	387
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	388
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	389 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	390 ngx_http_limit_conn_init_zone(ngx_shm_zone_t shm_zone, void data)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	391 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	392 ngx_http_limit_conn_ctx_t *octx = data;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	393
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	394 size_t len;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	395 ngx_slab_pool_t *shpool;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	396 ngx_rbtree_node_t *sentinel;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	397 ngx_http_limit_conn_ctx_t *ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	398
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	399 ctx = shm_zone->data;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	400
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	401 if (octx) {
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	402 if (ngx_strcmp(ctx->var.data, octx->var.data) != 0) {
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	403 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	404 "limit_conn_zone \"%V\" uses the \"%V\" variable "
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	405 "while previously it used the \"%V\" variable",
2716 d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2612 diff changeset	406 &shm_zone->shm.name, &ctx->var, &octx->var);
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	407 return NGX_ERROR;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	408 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	409
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	410 ctx->rbtree = octx->rbtree;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	411
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	412 return NGX_OK;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	413 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	414
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	415 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	416
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	417 if (shm_zone->shm.exists) {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	418 ctx->rbtree = shpool->data;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	419
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	420 return NGX_OK;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	421 }
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	422
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	423 ctx->rbtree = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_t));
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	424 if (ctx->rbtree == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	425 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	426 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	427
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	428 shpool->data = ctx->rbtree;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	429
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	430 sentinel = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_node_t));
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	431 if (sentinel == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	432 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	433 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	434
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	435 ngx_rbtree_init(ctx->rbtree, sentinel,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	436 ngx_http_limit_conn_rbtree_insert_value);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	437
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	438 len = sizeof(" in limit_conn_zone \"\"") + shm_zone->shm.name.len;
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	439
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	440 shpool->log_ctx = ngx_slab_alloc(shpool, len);
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	441 if (shpool->log_ctx == NULL) {
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	442 return NGX_ERROR;
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	443 }
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	444
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	445 ngx_sprintf(shpool->log_ctx, " in limit_conn_zone \"%V\"%Z",
2716 d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2612 diff changeset	446 &shm_zone->shm.name);
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2373 diff changeset	447
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	448 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	449 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	450
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	451
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	452 static void *
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	453 ngx_http_limit_conn_create_conf(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	454 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	455 ngx_http_limit_conn_conf_t *conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	456
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	457 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_conn_conf_t));
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	458 if (conf == NULL) {
2912 c7d57b539248 return NULL instead of NGX_CONF_ERROR on a create conf failure Igor Sysoev <igor@sysoev.ru> parents: 2720 diff changeset	459 return NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	460 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	461
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	462 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	463 * set by ngx_pcalloc():
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	464 *
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	465 * conf->limits.elts = NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	466 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	467
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	468 conf->log_level = NGX_CONF_UNSET_UINT;
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	469 conf->status_code = NGX_CONF_UNSET_UINT;
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	470
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	471 return conf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	472 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	473
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	474
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	475 static char *
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	476 ngx_http_limit_conn_merge_conf(ngx_conf_t cf, void parent, void *child)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	477 {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	478 ngx_http_limit_conn_conf_t *prev = parent;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	479 ngx_http_limit_conn_conf_t *conf = child;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	480
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	481 if (conf->limits.elts == NULL) {
4380 7697412a0921 Fixed limit_conn_log_level/limit_req_log_level inheritance. Valentin Bartenev <vbart@nginx.com> parents: 4280 diff changeset	482 conf->limits = prev->limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	483 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	484
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	485 ngx_conf_merge_uint_value(conf->log_level, prev->log_level, NGX_LOG_ERR);
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	486 ngx_conf_merge_uint_value(conf->status_code, prev->status_code,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4972 diff changeset	487 NGX_HTTP_SERVICE_UNAVAILABLE);
3186 23d567eabc5d limit_conn_log_level Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	488
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	489 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	490 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	491
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	492
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	493 static char *
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	494 ngx_http_limit_conn_zone(ngx_conf_t cf, ngx_command_t cmd, void *conf)
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	495 {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	496 u_char *p;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	497 ssize_t size;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	498 ngx_str_t *value, name, s;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	499 ngx_uint_t i;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	500 ngx_shm_zone_t *shm_zone;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	501 ngx_http_limit_conn_ctx_t *ctx;
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	502
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	503 value = cf->args->elts;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	504
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	505 ctx = NULL;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	506 size = 0;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	507 name.len = 0;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	508
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	509 for (i = 1; i < cf->args->nelts; i++) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	510
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	511 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	512
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	513 name.data = value[i].data + 5;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	514
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	515 p = (u_char *) ngx_strchr(name.data, ':');
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	516
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	517 if (p == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	518 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	519 "invalid zone size \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	520 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	521 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	522
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	523 name.len = p - name.data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	524
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	525 s.data = p + 1;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	526 s.len = value[i].data + value[i].len - s.data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	527
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	528 size = ngx_parse_size(&s);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	529
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	530 if (size == NGX_ERROR) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	531 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	532 "invalid zone size \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	533 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	534 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	535
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	536 if (size < (ssize_t) (8 * ngx_pagesize)) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	537 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	538 "zone \"%V\" is too small", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	539 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	540 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	541
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	542 continue;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	543 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	544
4972 8b635cf36ccc Added checks that disallow adding a variable with an empty name. Ruslan Ermilov <ru@nginx.com> parents: 4963 diff changeset	545 if (value[i].data[0] == '$') {
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	546
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	547 value[i].len--;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	548 value[i].data++;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	549
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	550 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_conn_ctx_t));
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	551 if (ctx == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	552 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	553 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	554
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	555 ctx->index = ngx_http_get_variable_index(cf, &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	556 if (ctx->index == NGX_ERROR) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	557 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	558 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	559
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	560 ctx->var = value[i];
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	561
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	562 continue;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	563 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	564
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	565 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	566 "invalid parameter \"%V\"", &value[i]);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	567 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	568 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	569
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	570 if (name.len == 0) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	571 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	572 "\"%V\" must have \"zone\" parameter",
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	573 &cmd->name);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	574 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	575 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	576
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	577 if (ctx == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	578 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	579 "no variable is defined for %V \"%V\"",
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	580 &cmd->name, &name);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	581 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	582 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	583
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	584 shm_zone = ngx_shared_memory_add(cf, &name, size,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	585 &ngx_http_limit_conn_module);
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	586 if (shm_zone == NULL) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	587 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	588 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	589
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	590 if (shm_zone->data) {
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	591 ctx = shm_zone->data;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	592
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	593 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	594 "%V \"%V\" is already bound to variable \"%V\"",
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	595 &cmd->name, &name, &ctx->var);
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	596 return NGX_CONF_ERROR;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	597 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	598
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	599 shm_zone->init = ngx_http_limit_conn_init_zone;
4272 260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	600 shm_zone->data = ctx;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	601
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	602 return NGX_CONF_OK;
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	603 }
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	604
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	605
260d591cb6a3 Limit zone: added the "limit_conn_zone" directive. Valentin Bartenev <vbart@nginx.com> parents: 4271 diff changeset	606 static char *
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	607 ngx_http_limit_conn(ngx_conf_t cf, ngx_command_t cmd, void *conf)
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	608 {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	609 ngx_shm_zone_t *shm_zone;
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	610 ngx_http_limit_conn_conf_t *lccf = conf;
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	611 ngx_http_limit_conn_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	612
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	613 ngx_str_t *value;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	614 ngx_int_t n;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	615 ngx_uint_t i;
2372 7148efbdd798 test duplicate limit_conn Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	616
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	617 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	618
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	619 shm_zone = ngx_shared_memory_add(cf, &value[1], 0,
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	620 &ngx_http_limit_conn_module);
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	621 if (shm_zone == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	622 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	623 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	624
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	625 limits = lccf->limits.elts;
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	626
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	627 if (limits == NULL) {
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	628 if (ngx_array_init(&lccf->limits, cf->pool, 1,
91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	629 sizeof(ngx_http_limit_conn_limit_t))
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	630 != NGX_OK)
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	631 {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	632 return NGX_CONF_ERROR;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	633 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	634 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	635
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	636 for (i = 0; i < lccf->limits.nelts; i++) {
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	637 if (shm_zone == limits[i].shm_zone) {
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	638 return "is duplicate";
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	639 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	640 }
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	641
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	642 n = ngx_atoi(value[2].data, value[2].len);
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	643 if (n <= 0) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	644 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	645 "invalid number of connections \"%V\"", &value[2]);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	646 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	647 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	648
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	649 if (n > 65535) {
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	650 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	651 "connection limit must be less 65536");
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	652 return NGX_CONF_ERROR;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	653 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	654
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	655 limit = ngx_array_push(&lccf->limits);
4811 21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	656 if (limit == NULL) {
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	657 return NGX_CONF_ERROR;
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	658 }
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4756 diff changeset	659
4271 b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	660 limit->conn = n;
b86cceba426a Limit zone: support for multiple "limit_conn" limits. Valentin Bartenev <vbart@nginx.com> parents: 4270 diff changeset	661 limit->shm_zone = shm_zone;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	662
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	663 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	664 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	665
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	666
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	667 static ngx_int_t
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	668 ngx_http_limit_conn_init(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	669 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	670 ngx_http_handler_pt *h;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	671 ngx_http_core_main_conf_t *cmcf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	672
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	673 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	674
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	675 h = ngx_array_push(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	676 if (h == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	677 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	678 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	679
4280 91874133fb27 Renamed ngx_http_limit_zone_module to ngx_http_limit_conn_module. Valentin Bartenev <vbart@nginx.com> parents: 4272 diff changeset	680 *h = ngx_http_limit_conn_handler;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	681
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	682 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	683 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_limit_conn_module.c @ 5859:ad9116427acf