view src/os/unix/ngx_process_cycle.h @ 7670:ccb5ff87ab3e

Cache: introduced min_free cache clearing. Clearing cache based on free space left on a file system is expected to allow better disk utilization in some cases, notably when disk space might be also used for something other than nginx cache (including nginx own temporary files) and while loading cache (when cache size might be inaccurate for a while, effectively disabling max_size cache clearing). Based on a patch by Adam Bambuch.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 22 Jun 2020 18:03:00 +0300
parents b4cc553aafeb
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_PROCESS_CYCLE_H_INCLUDED_
#define _NGX_PROCESS_CYCLE_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


#define NGX_CMD_OPEN_CHANNEL   1
#define NGX_CMD_CLOSE_CHANNEL  2
#define NGX_CMD_QUIT           3
#define NGX_CMD_TERMINATE      4
#define NGX_CMD_REOPEN         5


#define NGX_PROCESS_SINGLE     0
#define NGX_PROCESS_MASTER     1
#define NGX_PROCESS_SIGNALLER  2
#define NGX_PROCESS_WORKER     3
#define NGX_PROCESS_HELPER     4


typedef struct {
    ngx_event_handler_pt       handler;
    char                      *name;
    ngx_msec_t                 delay;
} ngx_cache_manager_ctx_t;


void ngx_master_process_cycle(ngx_cycle_t *cycle);
void ngx_single_process_cycle(ngx_cycle_t *cycle);


extern ngx_uint_t      ngx_process;
extern ngx_uint_t      ngx_worker;
extern ngx_pid_t       ngx_pid;
extern ngx_pid_t       ngx_new_binary;
extern ngx_uint_t      ngx_inherited;
extern ngx_uint_t      ngx_daemonized;
extern ngx_uint_t      ngx_exiting;

extern sig_atomic_t    ngx_reap;
extern sig_atomic_t    ngx_sigio;
extern sig_atomic_t    ngx_sigalrm;
extern sig_atomic_t    ngx_quit;
extern sig_atomic_t    ngx_debug_quit;
extern sig_atomic_t    ngx_terminate;
extern sig_atomic_t    ngx_noaccept;
extern sig_atomic_t    ngx_reconfigure;
extern sig_atomic_t    ngx_reopen;
extern sig_atomic_t    ngx_change_binary;


#endif /* _NGX_PROCESS_CYCLE_H_INCLUDED_ */