Mercurial > hg > nginx-quic
view src/os/unix/ngx_thread_cond.c @ 8804:e2d07e4ec636
Events: fixed balancing between workers with EPOLLEXCLUSIVE.
Linux with EPOLLEXCLUSIVE usually notifies only the process which was first
to add the listening socket to the epoll instance. As a result most of the
connections are handled by the first worker process (ticket #2285). To fix
this, we re-add the socket periodically, so other workers will get a chance
to accept connections.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 30 Dec 2021 01:08:46 +0300 |
parents | 022ea0d17177 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_thread_cond_create(ngx_thread_cond_t *cond, ngx_log_t *log) { ngx_err_t err; err = pthread_cond_init(cond, NULL); if (err == 0) { return NGX_OK; } ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_init() failed"); return NGX_ERROR; } ngx_int_t ngx_thread_cond_destroy(ngx_thread_cond_t *cond, ngx_log_t *log) { ngx_err_t err; err = pthread_cond_destroy(cond); if (err == 0) { return NGX_OK; } ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_destroy() failed"); return NGX_ERROR; } ngx_int_t ngx_thread_cond_signal(ngx_thread_cond_t *cond, ngx_log_t *log) { ngx_err_t err; err = pthread_cond_signal(cond); if (err == 0) { return NGX_OK; } ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_signal() failed"); return NGX_ERROR; } ngx_int_t ngx_thread_cond_wait(ngx_thread_cond_t *cond, ngx_thread_mutex_t *mtx, ngx_log_t *log) { ngx_err_t err; err = pthread_cond_wait(cond, mtx); #if 0 ngx_time_update(); #endif if (err == 0) { return NGX_OK; } ngx_log_error(NGX_LOG_ALERT, log, err, "pthread_cond_wait() failed"); return NGX_ERROR; }