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annotate src/os/unix/ngx_dlopen.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 7142b04337d6
children
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7142b04337d6 Dynamic modules: dlopen() support.
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2 /*
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3 * Copyright (C) Maxim Dounin
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_DLOPEN_H_INCLUDED_
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9 #define _NGX_DLOPEN_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 #define ngx_dlopen(path) dlopen((char *) path, RTLD_NOW | RTLD_GLOBAL)
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17 #define ngx_dlopen_n "dlopen()"
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19 #define ngx_dlsym(handle, symbol) dlsym(handle, symbol)
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20 #define ngx_dlsym_n "dlsym()"
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21
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22 #define ngx_dlclose(handle) dlclose(handle)
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23 #define ngx_dlclose_n "dlclose()"
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26 #if (NGX_HAVE_DLOPEN)
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27 char *ngx_dlerror(void);
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28 #endif
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31 #endif /* _NGX_DLOPEN_H_INCLUDED_ */