Mercurial > hg > nginx
view src/core/ngx_core.h @ 8078:5244d3b165ff
SSL: single allocation in session cache on 32-bit platforms.
Given the present typical SSL session sizes, on 32-bit platforms it is
now beneficial to store all data in a single allocation, since rbtree
node + session id + ASN1 representation of a session takes 256 bytes of
shared memory (36 + 32 + 150 = about 218 bytes plus SNI server name).
Storing all data in a single allocation is beneficial for SNI names up to
about 40 characters long and makes it possible to store about 4000 sessions
in one megabyte (instead of about 3000 sessions now). This also slightly
simplifies the code.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 12 Oct 2022 20:14:40 +0300 |
parents | 06b01840bd42 |
children | 5d91389e0fd3 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CORE_H_INCLUDED_ #define _NGX_CORE_H_INCLUDED_ #include <ngx_config.h> typedef struct ngx_module_s ngx_module_t; typedef struct ngx_conf_s ngx_conf_t; typedef struct ngx_cycle_s ngx_cycle_t; typedef struct ngx_pool_s ngx_pool_t; typedef struct ngx_chain_s ngx_chain_t; typedef struct ngx_log_s ngx_log_t; typedef struct ngx_open_file_s ngx_open_file_t; typedef struct ngx_command_s ngx_command_t; typedef struct ngx_file_s ngx_file_t; typedef struct ngx_event_s ngx_event_t; typedef struct ngx_event_aio_s ngx_event_aio_t; typedef struct ngx_connection_s ngx_connection_t; typedef struct ngx_thread_task_s ngx_thread_task_t; typedef struct ngx_ssl_s ngx_ssl_t; typedef struct ngx_proxy_protocol_s ngx_proxy_protocol_t; typedef struct ngx_ssl_connection_s ngx_ssl_connection_t; typedef struct ngx_udp_connection_s ngx_udp_connection_t; typedef void (*ngx_event_handler_pt)(ngx_event_t *ev); typedef void (*ngx_connection_handler_pt)(ngx_connection_t *c); #define NGX_OK 0 #define NGX_ERROR -1 #define NGX_AGAIN -2 #define NGX_BUSY -3 #define NGX_DONE -4 #define NGX_DECLINED -5 #define NGX_ABORT -6 #include <ngx_errno.h> #include <ngx_atomic.h> #include <ngx_thread.h> #include <ngx_rbtree.h> #include <ngx_time.h> #include <ngx_socket.h> #include <ngx_string.h> #include <ngx_files.h> #include <ngx_shmem.h> #include <ngx_process.h> #include <ngx_user.h> #include <ngx_dlopen.h> #include <ngx_parse.h> #include <ngx_parse_time.h> #include <ngx_log.h> #include <ngx_alloc.h> #include <ngx_palloc.h> #include <ngx_buf.h> #include <ngx_queue.h> #include <ngx_array.h> #include <ngx_list.h> #include <ngx_hash.h> #include <ngx_file.h> #include <ngx_crc.h> #include <ngx_crc32.h> #include <ngx_murmurhash.h> #if (NGX_PCRE) #include <ngx_regex.h> #endif #include <ngx_radix_tree.h> #include <ngx_times.h> #include <ngx_rwlock.h> #include <ngx_shmtx.h> #include <ngx_slab.h> #include <ngx_inet.h> #include <ngx_cycle.h> #include <ngx_resolver.h> #if (NGX_OPENSSL) #include <ngx_event_openssl.h> #endif #include <ngx_process_cycle.h> #include <ngx_conf_file.h> #include <ngx_module.h> #include <ngx_open_file_cache.h> #include <ngx_os.h> #include <ngx_connection.h> #include <ngx_syslog.h> #include <ngx_proxy_protocol.h> #define LF (u_char) '\n' #define CR (u_char) '\r' #define CRLF "\r\n" #define ngx_abs(value) (((value) >= 0) ? (value) : - (value)) #define ngx_max(val1, val2) ((val1 < val2) ? (val2) : (val1)) #define ngx_min(val1, val2) ((val1 > val2) ? (val2) : (val1)) void ngx_cpuinfo(void); #if (NGX_HAVE_OPENAT) #define NGX_DISABLE_SYMLINKS_OFF 0 #define NGX_DISABLE_SYMLINKS_ON 1 #define NGX_DISABLE_SYMLINKS_NOTOWNER 2 #endif #endif /* _NGX_CORE_H_INCLUDED_ */