From: Eric Wong <e@80x24.org> To: meta@public-inbox.org Subject: [PATCH 28/57] ds: pass $self to code references Date: Mon, 24 Jun 2019 02:52:29 +0000 Message-ID: <20190624025258.25592-29-e@80x24.org> (raw) In-Reply-To: <20190624025258.25592-1-e@80x24.org> We can reduce the amount of short-lived anonymous subs we create by passing $self to code references. --- lib/PublicInbox/DS.pm | 4 ++-- lib/PublicInbox/HTTP.pm | 9 ++++++++- lib/PublicInbox/HTTPD/Async.pm | 17 +++++++++-------- 3 files changed, 19 insertions(+), 11 deletions(-) diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm index 482710f7..7b87cd56 100644 --- a/lib/PublicInbox/DS.pm +++ b/lib/PublicInbox/DS.pm @@ -468,7 +468,7 @@ next_buf: } } else { #($ref eq 'CODE') { shift @$wbuf; - $bref->(); + $bref->($self); } } # while @$wbuf @@ -535,7 +535,7 @@ sub write { } return 0; } elsif ($ref eq 'CODE') { - $bref->(); + $bref->($self); return 1; } else { my $to_write = bytes::length($$bref); diff --git a/lib/PublicInbox/HTTP.pm b/lib/PublicInbox/HTTP.pm index c81aeacd..e132c610 100644 --- a/lib/PublicInbox/HTTP.pm +++ b/lib/PublicInbox/HTTP.pm @@ -247,7 +247,7 @@ sub response_done_cb ($$) { sub { my $env = delete $self->{env}; $self->write(\"0\r\n\r\n") if $alive == 2; - $self->write(sub{$alive ? next_request($self) : $self->close}); + $self->write($alive ? \&next_request : \&close); } } @@ -456,4 +456,11 @@ sub busy () { ($self->{rbuf} ne '' || $self->{env} || $self->{wbuf}); } +# fires after pending writes are complete: +sub restart_pass ($) { + $_[0]->{forward}->restart_read; # see PublicInbox::HTTPD::Async +} + +sub enqueue_restart_pass ($) { $_[0]->write(\&restart_pass) } + 1; diff --git a/lib/PublicInbox/HTTPD/Async.pm b/lib/PublicInbox/HTTPD/Async.pm index e6df58eb..b46baeb2 100644 --- a/lib/PublicInbox/HTTPD/Async.pm +++ b/lib/PublicInbox/HTTPD/Async.pm @@ -34,23 +34,24 @@ sub new { sub restart_read ($) { $_[0]->watch(PublicInbox::DS::EPOLLIN()) } -# fires after pending writes are complete: -sub restart_read_cb ($) { - my ($self) = @_; - sub { restart_read($self) } -} - sub main_cb ($$$) { my ($http, $fh, $bref) = @_; sub { my ($self) = @_; my $r = sysread($self->{sock}, $$bref, 8192); if ($r) { - $fh->write($$bref); + $fh->write($$bref); # may call $http->close + if ($http->{sock}) { # !closed if ($http->{wbuf}) { + # HTTP client could not keep up, so + # stop reading and buffering. $self->watch(0); - $http->write(restart_read_cb($self)); + + # Tell the HTTP socket to restart us + # when HTTP client is done draining + # $http->{wbuf}: + $http->enqueue_restart_pass; } # stay in EPOLLIN, but let other clients # get some work done, too. -- EW
next prev parent reply index Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-24 2:52 [PATCH 00/57] ds: shrink, TLS support, buffer writes to FS Eric Wong 2019-06-24 2:52 ` [PATCH 01/57] ds: get rid of {closed} field Eric Wong 2019-06-24 2:52 ` [PATCH 02/57] ds: get rid of more unused debug instance methods Eric Wong 2019-06-24 2:52 ` [PATCH 03/57] ds: use and export monotonic now() Eric Wong 2019-06-24 2:52 ` [PATCH 04/57] AddTimer: avoid clock_gettime for the '0' case Eric Wong 2019-06-24 2:52 ` [PATCH 05/57] ds: get rid of on_incomplete_write wrapper Eric Wong 2019-06-24 2:52 ` [PATCH 06/57] ds: lazy initialize wbuf_off Eric Wong 2019-06-24 2:52 ` [PATCH 07/57] ds: split out from ->flush_write and ->write Eric Wong 2019-06-24 2:52 ` [PATCH 08/57] ds: lazy-initialize wbuf Eric Wong 2019-06-24 2:52 ` [PATCH 09/57] ds: don't pass `events' arg to EPOLL_CTL_DEL Eric Wong 2019-06-24 2:52 ` [PATCH 10/57] ds: remove support for DS->write(undef) Eric Wong 2019-06-24 2:52 ` [PATCH 11/57] http: favor DS->write(strref) when reasonable Eric Wong 2019-06-24 2:52 ` [PATCH 12/57] ds: share send(..., MSG_MORE) logic Eric Wong 2019-06-24 2:52 ` [PATCH 13/57] ds: switch write buffering to use a tempfile Eric Wong 2019-06-24 2:52 ` [PATCH 14/57] ds: get rid of redundant and unnecessary POLL* constants Eric Wong 2019-06-24 2:52 ` [PATCH 15/57] syscall: get rid of unused EPOLL* constants Eric Wong 2019-06-24 2:52 ` [PATCH 16/57] syscall: get rid of unnecessary uname local vars Eric Wong 2019-06-24 2:52 ` [PATCH 17/57] ds: set event flags directly at initialization Eric Wong 2019-06-24 2:52 ` [PATCH 18/57] ds: import IO::KQueue namespace Eric Wong 2019-06-24 2:52 ` [PATCH 19/57] ds: share watch_chg between watch_read/watch_write Eric Wong 2019-06-24 2:52 ` [PATCH 20/57] ds: remove IO::Poll support (for now) Eric Wong 2019-06-24 2:52 ` [PATCH 21/57] ds: get rid of event_watch field Eric Wong 2019-06-24 2:52 ` [PATCH 22/57] httpd/async: remove EINTR check Eric Wong 2019-06-24 2:52 ` [PATCH 23/57] spawn: remove `Blocking' flag handling Eric Wong 2019-06-24 2:52 ` [PATCH 24/57] qspawn: describe where `$rpipe' come from Eric Wong 2019-06-24 2:52 ` [PATCH 25/57] http|nntp: favor "$! == EFOO" over $!{EFOO} checks Eric Wong 2019-06-24 2:52 ` [PATCH 26/57] ds: favor `delete' over assigning fields to `undef' Eric Wong 2019-06-24 2:52 ` [PATCH 27/57] http: don't pass extra args to PublicInbox::DS::close Eric Wong 2019-06-24 2:52 ` Eric Wong [this message] 2019-06-24 2:52 ` [PATCH 29/57] evcleanup: replace _run_asap with `event_step' callback Eric Wong 2019-06-24 2:52 ` [PATCH 30/57] ds: remove pointless exit calls Eric Wong 2019-06-24 2:52 ` [PATCH 31/57] http|nntp: be explicit about bytes::length on rbuf Eric Wong 2019-06-24 2:52 ` [PATCH 32/57] ds: hoist out do_read from NNTP and HTTP Eric Wong 2019-06-24 2:52 ` [PATCH 33/57] nntp: simplify re-arming/requeue logic Eric Wong 2019-06-24 2:52 ` [PATCH 34/57] allow use of PerlIO layers for filesystem writes Eric Wong 2019-06-24 2:52 ` [PATCH 35/57] ds: deal better with FS-related errors IO buffers Eric Wong 2019-06-24 2:52 ` [PATCH 36/57] nntp: wait for writability before sending greeting Eric Wong 2019-06-24 2:52 ` [PATCH 37/57] nntp: NNTPS and NNTP+STARTTLS working Eric Wong 2019-06-24 2:52 ` [PATCH 38/57] certs/create-certs.perl: fix cert validity on 32-bit Eric Wong 2019-06-24 2:52 ` [PATCH 39/57] daemon: map inherited sockets to well-known schemes Eric Wong 2019-06-24 2:52 ` [PATCH 40/57] ds|nntp: use CORE::close on socket Eric Wong 2019-06-24 2:52 ` [PATCH 41/57] nntp: call SSL_shutdown in normal cases Eric Wong 2019-06-24 2:52 ` [PATCH 42/57] t/nntpd-tls: slow client connection test Eric Wong 2019-06-24 2:52 ` [PATCH 43/57] daemon: use SSL_MODE_RELEASE_BUFFERS Eric Wong 2019-06-24 2:52 ` [PATCH 44/57] ds: allow ->write callbacks to syswrite directly Eric Wong 2019-06-24 2:52 ` [PATCH 45/57] nntp: reduce allocations for greeting Eric Wong 2019-06-24 2:52 ` [PATCH 46/57] ds: always use EV_ADD with EV_SET Eric Wong 2019-06-24 2:52 ` [PATCH 47/57] nntp: simplify long response logic and fix nesting Eric Wong 2019-06-24 2:52 ` [PATCH 48/57] ds: flush_write runs ->write callbacks even if closed Eric Wong 2019-06-24 2:52 ` [PATCH 49/57] nntp: lazily allocate and stash rbuf Eric Wong 2019-06-24 2:52 ` [PATCH 50/57] ci: require IO::KQueue on FreeBSD, for now Eric Wong 2019-06-24 2:52 ` [PATCH 51/57] nntp: send greeting immediately for plain sockets Eric Wong 2019-06-24 2:52 ` [PATCH 52/57] daemon: set TCP_DEFER_ACCEPT on everything but NNTP Eric Wong 2019-06-24 2:52 ` [PATCH 53/57] daemon: use FreeBSD accept filters on non-NNTP Eric Wong 2019-06-24 2:52 ` [PATCH 54/57] ds: split out IO::KQueue-specific code Eric Wong 2019-06-24 5:24 ` Eric Wong 2019-06-24 2:52 ` [PATCH 55/57] ds: reimplement IO::Poll support to look like epoll Eric Wong 2019-06-24 2:52 ` [PATCH 56/57] Revert "ci: require IO::KQueue on FreeBSD, for now" Eric Wong 2019-06-24 2:52 ` [PATCH 57/57] ds: reduce overhead of tempfile creation Eric Wong 2019-06-24 5:25 ` [PATCH 58/57] Makefile: skip DSKQXS in global syntax check Eric Wong 2019-06-24 18:28 ` [PATCH 59/57] ds: ->write must not clobber empty wbuf array Eric Wong
Reply instructions: You may reply publically to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style List information: https://public-inbox.org/README * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20190624025258.25592-29-e@80x24.org \ --to=e@80x24.org \ --cc=meta@public-inbox.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
user/dev discussion of public-inbox itself Archives are clonable: git clone --mirror https://public-inbox.org/meta git clone --mirror http://czquwvybam4bgbro.onion/meta git clone --mirror http://hjrcffqmbrq6wope.onion/meta git clone --mirror http://ou63pmih66umazou.onion/meta Example config snippet for mirrors Newsgroups are available over NNTP: nntp://news.public-inbox.org/inbox.comp.mail.public-inbox.meta nntp://ou63pmih66umazou.onion/inbox.comp.mail.public-inbox.meta nntp://czquwvybam4bgbro.onion/inbox.comp.mail.public-inbox.meta nntp://hjrcffqmbrq6wope.onion/inbox.comp.mail.public-inbox.meta nntp://news.gmane.org/gmane.mail.public-inbox.general note: .onion URLs require Tor: https://www.torproject.org/ AGPL code for this site: git clone https://public-inbox.org/public-inbox.git