Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_dlopen.c @ 8826:3436b441239b quic
HTTP/3: proper uni stream closure detection.
Previously, closure detection for server-initiated uni streams was not properly
implemented. Instead, HTTP/3 code relied on QUIC code posting the read event
and setting rev->error when it needed to close the stream. Then, regular
uni stream read handler called c->recv() and received error, which closed the
stream. This was an ad-hoc solution. If, for whatever reason, the read
handler was called earlier, c->recv() would return 0, which would also close
the stream.
Now server-initiated uni streams have a separate read event handler for
tracking stream closure. The handler calls c->recv(), which normally returns
0, but may return error in case of closure.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 31 Jan 2022 09:46:30 +0300 |
parents | 7142b04337d6 |
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rev | line source |
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Dynamic modules: dlopen() support.
Maxim Dounin <mdounin@mdounin.ru>
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1 |
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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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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
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12 #if (NGX_HAVE_DLOPEN) |
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13 |
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14 char * |
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15 ngx_dlerror(void) |
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16 { |
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17 char *err; |
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18 |
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19 err = (char *) dlerror(); |
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20 |
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21 if (err == NULL) { |
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22 return ""; |
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23 } |
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24 |
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25 return err; |
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26 } |
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27 |
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28 #endif |