annotate src/os/unix/ngx_linux.h @ 7948:a2613fc1bce5

Fixed sendfile() limit handling on Linux. On Linux starting with 2.6.16, sendfile() silently limits all operations to MAX_RW_COUNT, defined as (INT_MAX & PAGE_MASK). This incorrectly triggered the interrupt check, and resulted in 0-sized writev() on the next loop iteration. Fix is to make sure the limit is always checked, so we will return from the loop if the limit is already reached even if number of bytes sent is not exactly equal to the number of bytes we've tried to send.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 29 Oct 2021 20:21:51 +0300
parents adba26ff70b5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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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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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
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4 * Copyright (C) Nginx, Inc.
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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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5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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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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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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8 #ifndef _NGX_LINUX_H_INCLUDED_
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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9 #define _NGX_LINUX_H_INCLUDED_
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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12 ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
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975f62e77f02 nginx-0.1.21-RELEASE import
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13 off_t limit);
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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16 #endif /* _NGX_LINUX_H_INCLUDED_ */