Mercurial > hg > nginx-quic
view contrib/geo2nginx.pl @ 8027:bce9e9643444 quic
QUIC: coalesce neighbouring stream send buffers.
Previously a single STREAM frame was created for each buffer in stream output
chain which is wasteful with respect to memory. The following changes were
made in the stream send code:
- ngx_quic_stream_send_chain() no longer calls ngx_quic_stream_send() and got
a separate implementation that coalesces neighbouring buffers into a single
frame
- the new ngx_quic_stream_send_chain() respects the limit argument, which fixes
sendfile_max_chunk and limit_rate
- ngx_quic_stream_send() is reimplemented to call ngx_quic_stream_send_chain()
- stream frame size limit is moved out to a separate function
ngx_quic_max_stream_frame()
- flow control is moved out to a separate function ngx_quic_max_stream_flow()
- ngx_quic_stream_send_chain() is relocated next to ngx_quic_stream_send()
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 18 Aug 2020 12:28:33 +0300 |
parents | c9ad0d9c7d59 |
children |
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#!/usr/bin/perl -w # (c) Andrei Nigmatulin, 2005 # # this script provided "as is", without any warranties. use it at your own risk. # # special thanx to Andrew Sitnikov for perl port # # this script converts CSV geoip database (free download at http://www.maxmind.com/app/geoip_country) # to format, suitable for use with nginx_http_geo module (http://sysoev.ru/nginx) # # for example, line with ip range # # "62.16.68.0","62.16.127.255","1041253376","1041268735","RU","Russian Federation" # # will be converted to four subnetworks: # # 62.16.68.0/22 RU; # 62.16.72.0/21 RU; # 62.16.80.0/20 RU; # 62.16.96.0/19 RU; use warnings; use strict; while( <STDIN> ){ if (/"[^"]+","[^"]+","([^"]+)","([^"]+)","([^"]+)"/){ print_subnets($1, $2, $3); } } sub print_subnets { my ($a1, $a2, $c) = @_; my $l; while ($a1 <= $a2) { for ($l = 0; ($a1 & (1 << $l)) == 0 && ($a1 + ((1 << ($l + 1)) - 1)) <= $a2; $l++){}; print long2ip($a1) . "/" . (32 - $l) . " " . $c . ";\n"; $a1 += (1 << $l); } } sub long2ip { my $ip = shift; my $str = 0; $str = ($ip & 255); $ip >>= 8; $str = ($ip & 255).".$str"; $ip >>= 8; $str = ($ip & 255).".$str"; $ip >>= 8; $str = ($ip & 255).".$str"; }