qspawn: allow configurable limiters

And bump the default limit to 32 so we match git-daemon
behavior.  This shall allow us to configure different levels
of concurrency for different repositories and prevent clones
of giant repos from stalling service to small repos.

1 files changed, 6 insertions, 4 deletions

diff --git a/t/qspawn.t b/t/qspawn.t
index 05072e24..9c42e100 100644
--- a/t/qspawn.t
+++ b/t/qspawn.t
@@ -2,10 +2,12 @@
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 use Test::More;
 use_ok 'PublicInbox::Qspawn';
+
+my $limiter = PublicInbox::Qspawn::Limiter->new(1);
 {
         my $x = PublicInbox::Qspawn->new([qw(true)]);
         my $run = 0;
-        $x->start(sub {
+        $x->start($limiter, sub {
                 my ($rpipe) = @_;
                 is(0, sysread($rpipe, my $buf, 1), 'read zero bytes');
                 ok(!$x->finish, 'no error on finish');
@@ -17,7 +19,7 @@ use_ok 'PublicInbox::Qspawn';
 {
         my $x = PublicInbox::Qspawn->new([qw(false)]);
         my $run = 0;
-        $x->start(sub {
+        $x->start($limiter, sub {
                 my ($rpipe) = @_;
                 is(0, sysread($rpipe, my $buf, 1), 'read zero bytes from false');
                 my $err = $x->finish;
@@ -30,7 +32,7 @@ use_ok 'PublicInbox::Qspawn';
 foreach my $cmd ([qw(sleep 1)], [qw(sh -c), 'sleep 1; false']) {
         my $s = PublicInbox::Qspawn->new($cmd);
         my @run;
-        $s->start(sub {
+        $s->start($limiter, sub {
                 my ($rpipe) = @_;
                 push @run, 'sleep';
                 is(0, sysread($rpipe, my $buf, 1), 'read zero bytes');
@@ -39,7 +41,7 @@ foreach my $cmd ([qw(sleep 1)], [qw(sh -c), 'sleep 1; false']) {
         my @t = map {
                 my $i = $n++;
                 my $x = PublicInbox::Qspawn->new([qw(true)]);
-                $x->start(sub {
+                $x->start($limiter, sub {
                         my ($rpipe) = @_;
                         push @run, $i;
                 });