lix/src/libexpr
Eelco Dolstra 90ad02bf62 Enable HTTP/2 support
The binary cache store can now use HTTP/2 to do lookups. This is much
more efficient than HTTP/1.1 due to multiplexing: we can issue many
requests in parallel over a single TCP connection. Thus it's no longer
necessary to use a bunch of concurrent TCP connections (25 by
default).

For example, downloading 802 .narinfo files from
https://cache.nixos.org/, using a single TCP connection, takes 11.8s
with HTTP/1.1, but only 0.61s with HTTP/2.

This did require a fairly substantial rewrite of the Downloader class
to use the curl multi interface, because otherwise curl wouldn't be
able to do multiplexing for us. As a bonus, we get connection reuse
even with HTTP/1.1. All downloads are now handled by a single worker
thread. Clients call Downloader::enqueueDownload() to tell the worker
thread to start the download, getting a std::future to the result.
2016-09-14 16:36:02 +02:00
..
primops Support Git repos in the Nix path 2016-04-29 21:07:47 +02:00
attr-path.cc Optimize small lists 2015-07-23 22:05:09 +02:00
attr-path.hh Work on Values instead of Exprs 2013-09-03 13:17:51 +00:00
attr-set.cc Optimize empty sets 2015-07-23 23:11:08 +02:00
attr-set.hh Move attribute set data structures into their own header file. 2015-07-14 19:23:17 +02:00
common-opts.cc Enable HTTP/2 support 2016-09-14 16:36:02 +02:00
common-opts.hh StoreAPI -> Store 2016-02-04 14:48:42 +01:00
eval-inline.hh isFunctor: Simplify 2015-10-08 13:22:11 +02:00
eval.cc forceBool(): Show position info 2016-08-29 19:37:19 +02:00
eval.hh Fix GC build 2016-08-30 13:12:12 +02:00
get-drvs.cc forceBool(): Show position info 2016-08-29 19:37:19 +02:00
get-drvs.hh nix-env: respect meta.outputsToInstall 2016-02-23 14:19:14 +01:00
json-to-value.cc Add builtin function "partition" 2016-08-29 19:36:54 +02:00
json-to-value.hh Add builtin function ‘fromJSON’ 2014-07-04 13:34:15 +02:00
lexer.l Throw a specific error for incomplete parse errors. 2016-02-24 04:32:21 -06:00
local.mk Make primop registration pluggable 2016-04-14 12:50:01 +02:00
names.cc OCD: foreach -> C++11 ranged for 2015-07-17 20:13:56 +02:00
names.hh Don't recompile the same regex over and over 2014-10-03 21:29:40 +02:00
nix-expr.pc.in Install some pkgconfig files 2014-09-18 12:00:40 +02:00
nixexpr.cc First hit at providing support for floats in the language. 2016-01-05 00:40:40 +01:00
nixexpr.hh Throw a specific error for incomplete parse errors. 2016-02-24 04:32:21 -06:00
parser.y Enable HTTP/2 support 2016-09-14 16:36:02 +02:00
primops.cc Enable HTTP/2 support 2016-09-14 16:36:02 +02:00
primops.hh Make primop registration pluggable 2016-04-14 12:50:01 +02:00
symbol-table.hh Improve printing of ASTs 2014-10-20 09:13:21 +02:00
value-to-json.cc nix path-info: Add --json flag 2016-08-29 17:29:24 +02:00
value-to-json.hh nix path-info: Add --json flag 2016-08-29 17:29:24 +02:00
value-to-xml.cc First hit at providing support for floats in the language. 2016-01-05 00:40:40 +01:00
value-to-xml.hh Use "#pragma once" to prevent repeated header file inclusion 2012-07-18 14:59:03 -04:00
value.hh Fix GC build 2016-08-30 13:12:12 +02:00