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annotate src/os/unix/ngx_channel.h @ 9202:e88cdaa0f1ff

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AIO operations now add timers (ticket #2162). Each AIO (thread IO) operation being run is now accompanied with 1-minute timer. This timer prevents unexpected shutdown of the worker process while an AIO operation is running, and logs an alert if the operation is running for too long. This fixes "open socket left" alerts during worker processes shutdown due to pending AIO (or thread IO) operations while corresponding requests have no timers. In particular, such errors were observed while reading cache headers (ticket #2162), and with worker_shutdown_timeout.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 29 Jan 2024 10:31:37 +0300
parents 2cd019520210
children
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_CHANNEL_H_INCLUDED_
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9 #define _NGX_CHANNEL_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_event.h>
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17 typedef struct {
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18 ngx_uint_t command;
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19 ngx_pid_t pid;
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20 ngx_int_t slot;
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21 ngx_fd_t fd;
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22 } ngx_channel_t;
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25 ngx_int_t ngx_write_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
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26 ngx_log_t *log);
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27 ngx_int_t ngx_read_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
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28 ngx_log_t *log);
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29 ngx_int_t ngx_add_channel_event(ngx_cycle_t *cycle, ngx_fd_t fd,
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30 ngx_int_t event, ngx_event_handler_pt handler);
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b670db10cbbd nginx-0.0.7-2004-07-14-20:01:42 import
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31 void ngx_close_channel(ngx_fd_t *fd, ngx_log_t *log);
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34 #endif /* _NGX_CHANNEL_H_INCLUDED_ */