From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 14/57] ds: get rid of redundant and unnecessary POLL* constants
Date: Mon, 24 Jun 2019 02:52:15 +0000 [thread overview]
Message-ID: <20190624025258.25592-15-e@80x24.org> (raw)
In-Reply-To: <20190624025258.25592-1-e@80x24.org>
EPOLL* constants already match their POLL* counterparts and
there's no way Linux can ever diverge or change the values
of those constants. So we'll favor the EPOLL* ones since we
use EPOLLEXCLUSIVE, already.
For weird stuff like kqueue, we'd need to keep maintaining
the mapping, anyways.
---
lib/PublicInbox/DS.pm | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)
diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index eb468f57..bff12de5 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -29,19 +29,14 @@ use PublicInbox::Syscall qw(:epoll);
use fields ('sock', # underlying socket
'wbuf', # arrayref of coderefs or GLOB refs
'wbuf_off', # offset into first element of wbuf to start writing at
- 'event_watch', # bitmask of events the client is interested in (POLLIN,OUT,etc.)
+ 'event_watch', # bitmask of events the client is interested in
+ # (EPOLLIN,OUT,etc.)
);
use Errno qw(EAGAIN EINVAL);
use Carp qw(croak confess);
use File::Temp qw(tempfile);
-use constant POLLIN => 1;
-use constant POLLOUT => 4;
-use constant POLLERR => 8;
-use constant POLLHUP => 16;
-use constant POLLNVAL => 32;
-
our $HAVE_KQUEUE = eval { require IO::KQueue; 1 };
our (
@@ -403,19 +398,19 @@ sub new {
Carp::cluck("undef sock and/or fd in PublicInbox::DS->new. sock=" . ($sock || "") . ", fd=" . ($fd || ""))
unless $sock && $fd;
- my $ev = $self->{event_watch} = POLLERR|POLLHUP|POLLNVAL;
+ my $ev = $self->{event_watch} = 0;
_InitPoller();
if ($HaveEpoll) {
if ($exclusive) {
- $ev = $self->{event_watch} = EPOLLIN|EPOLLERR|EPOLLHUP|$EPOLLEXCLUSIVE;
+ $ev = $self->{event_watch} = EPOLLIN|$EPOLLEXCLUSIVE;
}
retry:
if (epoll_ctl($Epoll, EPOLL_CTL_ADD, $fd, $ev)) {
if ($! == EINVAL && ($ev & $EPOLLEXCLUSIVE)) {
$EPOLLEXCLUSIVE = 0; # old kernel
- $ev = $self->{event_watch} = EPOLLIN|EPOLLERR|EPOLLHUP;
+ $ev = $self->{event_watch} = EPOLLIN;
goto retry;
}
die "couldn't add epoll watch for $fd: $!\n";
@@ -646,8 +641,8 @@ sub watch_read {
my $val = shift;
my $event = $self->{event_watch};
- $event &= ~POLLIN if ! $val;
- $event |= POLLIN if $val;
+ $event &= ~EPOLLIN if ! $val;
+ $event |= EPOLLIN if $val;
my $fd = fileno($sock);
# If it changed, set it
@@ -676,8 +671,8 @@ sub watch_write {
my $val = shift;
my $event = $self->{event_watch};
- $event &= ~POLLOUT if ! $val;
- $event |= POLLOUT if $val;
+ $event &= ~EPOLLOUT if ! $val;
+ $event |= EPOLLOUT if $val;
my $fd = fileno($sock);
# If it changed, set it
--
EW
next prev parent reply other threads:[~2019-06-24 2:54 UTC|newest]
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 ` Eric Wong [this message]
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 ` [PATCH 28/57] ds: pass $self to code references Eric Wong
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 publicly 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=20190624025258.25592-15-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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/public-inbox.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).