Mercurial > hg > nginx-quic
annotate src/core/ngx_parse_time.h @ 8867:5119c8150478
Fixed runtime handling of systems without EPOLLRDHUP support.
In 7583:efd71d49bde0 (nginx 1.17.5) along with introduction of the
ioctl(FIONREAD) support proper handling of systems without EPOLLRDHUP
support in the kernel (but with EPOLLRDHUP in headers) was broken.
Before the change, rev->available was never set to 0 unless
ngx_use_epoll_rdhup was also set (that is, runtime test for EPOLLRDHUP
introduced in 6536:f7849bfb6d21 succeeded). After the change,
rev->available might reach 0 on systems without runtime EPOLLRDHUP
support, stopping further reading in ngx_readv_chain() and ngx_unix_recv().
And, if EOF happened to be already reported along with the last event,
it is not reported again by epoll_wait(), leading to connection hangs
and timeouts on such systems.
This affects Linux kernels before 2.6.17 if nginx was compiled
with newer headers, and, more importantly, emulation layers, such as
DigitalOcean's App Platform's / gVisor's epoll emulation layer.
Fix is to explicitly check ngx_use_epoll_rdhup before the corresponding
rev->pending_eof tests in ngx_readv_chain() and ngx_unix_recv().
author | Marcus Ball <marcus.ball@live.com> |
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date | Mon, 30 May 2022 02:38:07 +0300 |
parents | 8b6fa4842133 |
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8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
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1 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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7 |
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
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8 #ifndef _NGX_PARSE_TIME_H_INCLUDED_ |
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9 #define _NGX_PARSE_TIME_H_INCLUDED_ |
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10 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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11 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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12 #include <ngx_config.h> |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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13 #include <ngx_core.h> |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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14 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
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15 |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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16 time_t ngx_parse_http_time(u_char *value, size_t len); |
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Moved ngx_http_parse_time() to core, renamed accordingly.
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17 |
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
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18 /* compatibility */ |
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19 #define ngx_http_parse_time(value, len) ngx_parse_http_time(value, len) |
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
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20 |
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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21 |
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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22 #endif /* _NGX_PARSE_TIME_H_INCLUDED_ */ |