Importing IPC-MorseSignals-0.03.tar.gz

[perl/modules/IPC-MorseSignals.git] / t / 10-base.t

diff --git a/t/10-base.t b/t/10-base.t
index 153cffe9d15ae07550ca2f742cd68b8126a36db3..bc55f14925352c77776be4f52e7d44f913e7af7d 100644 (file)
--- a/t/10-base.t
+++ b/t/10-base.t
@@ -6,43 +6,51 @@ use POSIX qw/SIGINT SIGTERM SIGKILL EXIT_SUCCESS/;
 
 use IPC::MorseSignals qw/msend mrecv/;
 
-my $speed = 128;
-
 sub trysend {
  my ($msg, $desc) = @_;
- pipe my $rdr, my $wtr or die "$desc: pipe() failed : $!";
- my $pid = fork;
- if (!defined $pid) {
-  die "$desc: fork() failed : $!";
- } elsif ($pid == 0) {
-  close $rdr;
-  local @SIG{qw/USR1 USR2/} = mrecv sub {
-   print $wtr $_[0], "\n";
-   close $wtr;
-   exit EXIT_SUCCESS;
+ my $speed = 2 ** 16;
+ my $ok = 0;
+SPEED:
+ while (($speed > 1) && !$ok) {
+  $speed /= 2;
+  pipe my $rdr, my $wtr or die "$desc: pipe() failed : $!";
+  my $pid = fork;
+  if (!defined $pid) {
+   die "$desc: fork() failed : $!";
+  } elsif ($pid == 0) {
+   close $rdr;
+   local @SIG{qw/USR1 USR2/} = mrecv sub {
+    print $wtr $_[0], "\n";
+    close $wtr;
+    exit EXIT_SUCCESS;
+   };
+   1 while 1;
+  }
+  close $wtr or die "$desc: close() failed : $!";
+  eval {
+   local $SIG{ALRM} = sub { die 'timeout' };
+   my $a = (int(100 * (3 * length $msg) / $speed) || 1);
+   $a = 10 if $a > 10;
+   alarm $a;
+   msend $msg => $pid, $speed;
+   waitpid $pid, 0;
   };
-  1 while 1;
- }
- close $wtr or die "$desc: close() failed : $!";
- eval {
-  local $SIG{ALRM} = sub { die 'timeout' };
-  my $a = (int(100 * (3 * length $msg) / $speed) || 1);
-  $a = 10 if $a > 10;
-  alarm $a;
-  msend $msg => $pid, $speed;
-  waitpid $pid, 0;
- };
- alarm 0;
- if ($@) {
-  kill SIGINT,  $pid;
-  kill SIGTERM, $pid;
-  kill SIGKILL, $pid;
-  die "$desc: died ($@)";
+  alarm 0;
+  if ($@) {
+   kill SIGINT,  $pid;
+   kill SIGTERM, $pid;
+   kill SIGKILL, $pid;
+   close $rdr or die "$desc: close() failed : $!";
+   next SPEED;
+  }
+  my $recv = do { local $/; <$rdr> };
+  close $rdr or die "$desc: close() failed : $!";
+  next SPEED unless $recv;
+  chomp $recv;
+  next SPEED unless $msg eq $recv;
+  $ok = 1;
  }
- my $recv = do { local $/; <$rdr> };
- close $rdr;
- chomp $recv;
- ok($msg eq $recv, $desc);
+ ok($speed >= 1, $desc);
 }
 
 for (1 .. 5) {