From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 2/5] DS: remove support OtherFds code
Date: Wed, 22 May 2019 21:46:56 +0000 [thread overview]
Message-ID: <20190522214659.6183-3-e@80x24.org> (raw)
In-Reply-To: <20190522214659.6183-1-e@80x24.org>
It's easy enough to wrap FDs in classes that can use
all of the functionality of the event loop, not just
the read-only interface AddOtherFds provided.
---
lib/PublicInbox/DS.pm | 68 ++++++-------------------------------------
1 file changed, 9 insertions(+), 59 deletions(-)
diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index 0acb034..751ae41 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -54,8 +54,6 @@ our (
$Epoll, # Global epoll fd (for epoll mode only)
$KQueue, # Global kqueue fd (for kqueue mode only)
@ToClose, # sockets to close when event loop is done
- %OtherFds, # A hash of "other" (non-PublicInbox::DS) file
- # descriptors for the event loop to track.
$PostLoopCallback, # subref to call at the end of each loop, if defined (global)
%PLCMap, # fd (num) -> PostLoopCallback (per-object)
@@ -81,7 +79,6 @@ Reset all state
sub Reset {
%DescriptorMap = ();
@ToClose = ();
- %OtherFds = ();
$LoopTimeout = -1; # no timeout by default
@Timers = ();
@@ -113,29 +110,6 @@ current event loop.
=cut
sub ToClose { return @ToClose; }
-=head2 C<< CLASS->OtherFds( [%fdmap] ) >>
-
-Get/set the hash of file descriptors that need processing in parallel with
-the registered PublicInbox::DS objects.
-
-=cut
-sub OtherFds {
- my $class = shift;
- if ( @_ ) { %OtherFds = @_ }
- return wantarray ? %OtherFds : \%OtherFds;
-}
-
-=head2 C<< CLASS->AddOtherFds( [%fdmap] ) >>
-
-Add fds to the OtherFds hash for processing.
-
-=cut
-sub AddOtherFds {
- my $class = shift;
- %OtherFds = ( %OtherFds, @_ ); # FIXME investigate what happens on dupe fds
- return wantarray ? %OtherFds : \%OtherFds;
-}
-
=head2 C<< CLASS->SetLoopTimeout( $timeout ) >>
Set the loop timeout for the event loop to some value in milliseconds.
@@ -275,12 +249,6 @@ sub RunTimers {
sub EpollEventLoop {
my $class = shift;
- foreach my $fd ( keys %OtherFds ) {
- if (epoll_ctl($Epoll, EPOLL_CTL_ADD, $fd, EPOLLIN) == -1) {
- warn "epoll_ctl(): failure adding fd=$fd; $! (", $!+0, ")\n";
- }
- }
-
while (1) {
my @events;
my $i;
@@ -303,14 +271,10 @@ sub EpollEventLoop {
# if we didn't find a Perlbal::Socket subclass for that fd, try other
# pseudo-registered (above) fds.
if (! $pob) {
- if (my $code = $OtherFds{$ev->[0]}) {
- $code->($state);
- } else {
- my $fd = $ev->[0];
- warn "epoll() returned fd $fd w/ state $state for which we have no mapping. removing.\n";
- epoll_ctl($Epoll, EPOLL_CTL_DEL, $fd, 0);
- POSIX::close($fd);
- }
+ my $fd = $ev->[0];
+ warn "epoll() returned fd $fd w/ state $state for which we have no mapping. removing.\n";
+ epoll_ctl($Epoll, EPOLL_CTL_DEL, $fd, 0);
+ POSIX::close($fd);
next;
}
@@ -345,9 +309,6 @@ sub PollEventLoop {
# modifies the array in place with the even elements being
# replaced with the event masks that occured.
my @poll;
- foreach my $fd ( keys %OtherFds ) {
- push @poll, $fd, POLLIN;
- }
while ( my ($fd, $sock) = each %DescriptorMap ) {
push @poll, $fd, $sock->{event_watch};
}
@@ -374,9 +335,6 @@ sub PollEventLoop {
$pob = $DescriptorMap{$fd};
if (!$pob) {
- if (my $code = $OtherFds{$fd}) {
- $code->($state);
- }
next;
}
@@ -397,10 +355,6 @@ sub PollEventLoop {
sub KQueueEventLoop {
my $class = shift;
- foreach my $fd (keys %OtherFds) {
- $KQueue->EV_SET($fd, IO::KQueue::EVFILT_READ(), IO::KQueue::EV_ADD());
- }
-
while (1) {
my $timeout = RunTimers();
my @ret = eval { $KQueue->kevent($timeout) };
@@ -417,12 +371,8 @@ sub KQueueEventLoop {
my ($fd, $filter, $flags, $fflags) = @$kev;
my PublicInbox::DS $pob = $DescriptorMap{$fd};
if (!$pob) {
- if (my $code = $OtherFds{$fd}) {
- $code->($filter);
- } else {
- warn "kevent() returned fd $fd for which we have no mapping. removing.\n";
- POSIX::close($fd); # close deletes the kevent entry
- }
+ warn "kevent() returned fd $fd for which we have no mapping. removing.\n";
+ POSIX::close($fd); # close deletes the kevent entry
next;
}
@@ -453,7 +403,7 @@ called every time the event loop finishes.
Return 1 (or any true value) from the sub to make the loop continue, 0 or false
and it will exit.
-The callback function will be passed two parameters: \%DescriptorMap, \%OtherFds.
+The callback function will be passed two parameters: \%DescriptorMap
=cut
sub SetPostLoopCallback {
@@ -498,12 +448,12 @@ sub PostEventLoop {
# per-object post-loop-callbacks
for my $plc (values %PLCMap) {
- $keep_running &&= $plc->(\%DescriptorMap, \%OtherFds);
+ $keep_running &&= $plc->(\%DescriptorMap);
}
# now we're at the very end, call callback if defined
if (defined $PostLoopCallback) {
- $keep_running &&= $PostLoopCallback->(\%DescriptorMap, \%OtherFds);
+ $keep_running &&= $PostLoopCallback->(\%DescriptorMap);
}
return $keep_running;
--
EW
next prev parent reply other threads:[~2019-05-22 21:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-22 21:46 [PATCH 0/5] DS: drop more unused stuff Eric Wong
2019-05-22 21:46 ` [PATCH 1/5] DS: get rid of unused methods and aliases Eric Wong
2019-05-22 21:46 ` Eric Wong [this message]
2019-05-22 21:46 ` [PATCH 3/5] DS: drop $VERSION var Eric Wong
2019-05-22 21:46 ` [PATCH 4/5] DS: remove IPPROTO_TCP import Eric Wong
2019-05-22 21:46 ` [PATCH 5/5] DS: warn on deprecations Eric Wong
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