[PATCH] dskqxs: fix loop to allow `next'

[Eric Wong <e@80x24.org>]

`do {} while(...)' loops in Perl don't support `next', actually :x
This only affects *BSD platforms with IO::KQueue installed.

Fixes: d6674af04cb74a4e "httpd|nntpd: avoid missed signal wakeups"
---
 lib/PublicInbox/DSKQXS.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/DSKQXS.pm b/lib/PublicInbox/DSKQXS.pm
index eccfa56d..7141b131 100644
--- a/lib/PublicInbox/DSKQXS.pm
+++ b/lib/PublicInbox/DSKQXS.pm
@@ -71,7 +71,7 @@ sub READ { # called by sysread() for signalfd compatibility
 	my $nr = $len / 128;
 	my $r = 0;
 	$_[1] = '';
-	do {
+	while (1) {
 		while ($nr--) {
 			my $signo = shift(@$sigbuf) or last;
 			# caller only cares about signalfd_siginfo.ssi_signo:
@@ -94,7 +94,7 @@ sub READ { # called by sysread() for signalfd compatibility
 		# field shows coalesced signals, and maybe we'll use it
 		# in the future...
 		@$sigbuf = map { $_->[0] } @events;
-	} while (1);
+	}
 }
 
 # for fileno() calls in PublicInbox::DS