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view src/os/unix/ngx_thread.h @ 7924:d9e009b39596

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HTTP/2: optimized processing of small DATA frames. The request body filter chain is no longer called after processing a DATA frame. Instead, we now post a read event to do this. This ensures that multiple small DATA frames read during the same event loop iteration are coalesced together, resulting in much faster processing. Since rb->buf can now contain unprocessed data, window update is no longer sent in ngx_http_v2_state_read_data() in case of flow control being used due to filter buffering. Instead, window will be updated by ngx_http_v2_read_client_request_body_handler() in the posted read event.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 06 Sep 2021 14:54:50 +0300
parents d230c797b168
children
line wrap: on
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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         "%uL"

#else

typedef uint64_t   ngx_tid_t;
#define NGX_TID_T_FMT         "%uL"

#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_ */