Importing IPC-MorseSignals-0.04.tar.gz

[perl/modules/IPC-MorseSignals.git] / samples / bench.pl

diff --git a/samples/bench.pl b/samples/bench.pl
index 45b485b901706a12db19ad53675077f7bc8ca76f..d45e950bdb600f188e6d0960723eedf3b15a5e18 100755 (executable)
--- a/samples/bench.pl
+++ b/samples/bench.pl
@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 
-use POSIX qw/SIGINT SIGTERM SIGKILL EXIT_SUCCESS/;
+use POSIX qw/SIGINT SIGTERM SIGKILL EXIT_SUCCESS EXIT_FAILURE WIFEXITED WEXITSTATUS/;
 
 use lib qw{blib/lib};
 
@@ -16,67 +16,59 @@ sub tryspeed {
  my $speed = 2 ** 16;
  my $ok = 0;
  my $desc;
- while ($speed && $ok < $n) {
-  $desc = "$n sends of $l bytes at $speed bits/s";
+SPEED:
+ while (($speed > 1) && ($ok < $n)) {
   $speed /= 2;
+  $desc = "$n sends of $l bytes at $speed bits/s";
   $ok = 0;
   print STDERR "try $desc";
-TRY:
   for (1 .. $n) {
    print STDERR ".";
    my @alpha = ('a' .. 'z');
    my $msg = join '', map { $alpha[rand @alpha] } 1 .. $l;
-   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 $wtr;
-     exit EXIT_SUCCESS;
+     exit(($msg eq $_[0]) ? EXIT_SUCCESS : EXIT_FAILURE);
     };
     1 while 1;
+    exit EXIT_FAILURE;
    }
-   close $wtr or die "$desc: close() failed : $!";
+   my $next = 0;
    eval {
     local $SIG{ALRM} = sub { die 'timeout' };
     my $a = (int(100 * (3 * $l) / $speed) || 1);
     $a = 10 if $a > 10;
     alarm $a;
-    msend $msg => $pid, $speed;
+    msend $msg => $pid, speed => $speed;
     waitpid $pid, 0;
+    if (WIFEXITED($?) && (WEXITSTATUS($?) == EXIT_SUCCESS)) {
+     ++$ok;
+    } else {
+     print STDERR " transfer error\n";
+     $next = 1;
+    }
    };
    alarm 0;
    if ($@) {
     kill SIGINT,  $pid;
     kill SIGTERM, $pid;
     kill SIGKILL, $pid;
-    close $rdr or die "$desc: close() failed : $!";
     print STDERR " timeout\n";
-    next TRY;
-   }
-   my $recv = do { local $/; <$rdr> };
-   close $rdr or die "$desc: close() failed : $!";
-   if ($recv) {
-    chomp $recv;
-    if ($msg eq $recv) {
-     ++$ok;
-    } else {
-     print STDERR " transfer error\n";
-     last TRY;
-    }
-   } else {
-    print STDERR " transfer failure\n";
-    last TRY;
+    $next = 1;
    }
+   next SPEED if $next;
   }
  }
- if ($speed) {
+ $desc = "$l bytes sent $n times";
+ if ($speed >= 1) {
   print STDERR " OK\n\n";
-  $desc = "$l bytes sent $n times";
   push @res, "$desc at $speed bits/s";
+ } else {
+  print STDERR " FAILED\n\n";
+  push @res, "$desc FAILED";
  }
 }