Mercurial > hg > nginx
view src/os/win32/ngx_socket.c @ 8991:3436b441239b 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> |
---|---|
date | Mon, 31 Jan 2022 09:46:30 +0300 |
parents | efd71d49bde0 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> int ngx_nonblocking(ngx_socket_t s) { unsigned long nb = 1; return ioctlsocket(s, FIONBIO, &nb); } int ngx_blocking(ngx_socket_t s) { unsigned long nb = 0; return ioctlsocket(s, FIONBIO, &nb); } int ngx_socket_nread(ngx_socket_t s, int *n) { unsigned long nread; if (ioctlsocket(s, FIONREAD, &nread) == -1) { return -1; } *n = nread; return 0; } int ngx_tcp_push(ngx_socket_t s) { return 0; }