Mercurial > hg > nginx-quic
view src/os/unix/ngx_thread.h @ 6220:5e6142609e48
Core: idle connections now closed only once on exiting.
Iterating through all connections takes a lot of CPU time, especially
with large number of worker connections configured. As a result
nginx processes used to consume CPU time during graceful shutdown.
To mitigate this we now only do a full scan for idle connections when
shutdown signal is received.
Transitions of connections to idle ones are now expected to be
avoided if the ngx_exiting flag is set. The upstream keepalive module
was modified to follow this.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Tue, 11 Aug 2015 16:28:55 +0300 |
parents | ac7c7241ed8c |
children | d230c797b168 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_THREAD_H_INCLUDED_ #define _NGX_THREAD_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #if (NGX_THREADS) #include <pthread.h> typedef pthread_mutex_t ngx_thread_mutex_t; ngx_int_t ngx_thread_mutex_create(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_destroy(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_lock(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_unlock(ngx_thread_mutex_t *mtx, ngx_log_t *log); typedef pthread_cond_t ngx_thread_cond_t; ngx_int_t ngx_thread_cond_create(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_destroy(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_signal(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_wait(ngx_thread_cond_t *cond, ngx_thread_mutex_t *mtx, ngx_log_t *log); #if (NGX_LINUX) typedef pid_t ngx_tid_t; #define NGX_TID_T_FMT "%P" #elif (NGX_FREEBSD) typedef uint32_t ngx_tid_t; #define NGX_TID_T_FMT "%uD" #elif (NGX_DARWIN) typedef uint64_t ngx_tid_t; #define NGX_TID_T_FMT "%uA" #else typedef uint64_t ngx_tid_t; #define NGX_TID_T_FMT "%uA" #endif ngx_tid_t ngx_thread_tid(void); #define ngx_log_tid ngx_thread_tid() #else #define ngx_log_tid 0 #define NGX_TID_T_FMT "%d" #endif #endif /* _NGX_THREAD_H_INCLUDED_ */