wait for child. mj (mini-json, very pure)

c.rb

@@ -3,10 +3,6 @@
 libexec = File.expand_path File.dirname( __FILE__)
 machine, source, destination = ARGV[0...3]
 
-def ts
-	Time.now.strftime '%Y-%m-%d %H:%M:%S'
-end
-
 class IO
 	def readall
 		buf = ''

r.pl

@@ -5,31 +5,32 @@ use warnings;
 use POSIX qw(strftime);
 $|++;
 
-sub ts {
-	strftime '%Y-%m-%d %H:%M:%S', localtime;
-}
+END { wait; };
 
 $SIG{CLD} = sub {
 	wait;
-	#printf STDERR "{ts: \"".ts."\", proc: \"r\", action: \"exit\", code: $?, error: \"child_died\"}\n";
 	exit $?;
 };
 
-sub readcmd {
+sub mj {
+	%_ = @_;
+	'{ts:"'.strftime( '%Y-%m-%d %H:%M:%S', localtime).'", proc:"s", '.join( ', ', map "$_:\"$_{$_}\"", keys%_)."}\n";
+}
+
+sub readg {
 	my $data = '';
-	while( length( $data) < 6) {
-		read( STDIN, $data, 6-length($data), length($data)) or return(0);
+	while( length( $data) < $_[0]) {
+		read( STDIN, $data, $_[0]-length($data), length($data)) or return(0);
 	}
 	$data;
 }
 
-chdir $ARGV[0] or die( "{ts: \"".ts."\", proc: \"r\", error: \"cannot_chdir\", exception: \"$!\"}\n");
-while( my$data = readcmd) {
-	(my$cmd, my$length) = unpack( 'nN', $data);
-	#print STDERR "{ts: \"".ts."\", cmd: $cmd, length: $length}\n";
-	read STDIN, $data, $length;
+chdir $ARGV[0] or die( mj( error=>'cannot_chdir', exception=>$!));
+while( my$data = readg(6)) {
+	my( $cmd, $length) = unpack( 'nN', $data);
+	$data = readg $length;
 	if( 1 == $cmd) {
-		open( F, '>>', $data)  or  die( "{ts: \"".ts."\", proc: \"r\", error: \"unable_to_open_file\", message: \"Can't open file <$data>.\"}\n");
+		open( F, '>>', $data)  or  die( mj( error=>'unable_to_open_file', message=>"Can't open file <$data>"));
 		my@stat = stat F;
 		print pack( 'N', $stat[7]);
 	}
@@ -37,8 +38,7 @@ while( my$data = readcmd) {
 		print F $data;
 	}
 	else { 
-		die( "{ts: \"".ts."\", proc: \"r\", error: \"unknown_command\", command: $cmd}\n");
+		die( mj( error=>'unknown_command', command=>$cmd));
 	}
 }
-#print STDERR "{ts: \"".ts."\", proc: \"r\", exit: 0}\n";
 exit 0;

s.pl

@@ -1,35 +1,39 @@
 #!/usr/bin/env perl
 
 use strict;
-#use warnings; # Old perl
 use POSIX qw(strftime);
 $|++;
 
-sub ts {
-	strftime '%Y-%m-%d %H:%M:%S', localtime;
+sub mj {
+	%_ = @_;
+	'{ts:"'.strftime( '%Y-%m-%d %H:%M:%S', localtime).'", proc:"s", '.join( ', ', map "$_:\"$_{$_}\"", keys%_)."}\n";
+}
+
+sub readg {
+	my $data = '';
+	while( length( $data) < $_[0]) {
+		read( STDIN, $data, $_[0]-length($data), length($data)) or return(0);
+	}
+	$data;
 }
 
 my$dir = shift @ARGV;
-$dir =~ /^(\/.*)\/([^\/]+)$/ or die( "{ts: \"".ts."\", proc: \"s\", error: \"invalid_path_expression\", message: \"Path-Expression is invalid.\"}\n");
+$dir =~ /^(\/.*)\/([^\/]+)$/ or die( mj( error=>'invalid_path_expression', message=>'Path-Expression is invalid.'));
 ($dir, my$fexpr) = ($1, $2);
 
-chdir( $dir) or die( "{ts: \"".ts."\", proc: \"s\", error: \"change_directory\", value: \"$dir\", message: \"$!\"}\n");
-opendir( DH, '.') || die "{ts: \"".ts."\", proc: \"s\", error: \"dir_not_found\", message: \"Directory not found.\"}\n";
+chdir( $dir) or die( mj( error=>'change_directory', value=>$dir, message=>$!));
+opendir( DH, '.') or die( mj( error=>'dir_not_found', message=>'Directory not found.'));
 while( my$filename = readdir( DH)) {
-	$filename =~ /$fexpr/ or next;
-	-f $filename or next;
+	next  unless $filename =~ /$fexpr/ and -f $filename;
 	print pack( 'nNA*', 1, length($filename), $filename);
-	print STDERR "{ts: \"".ts."\", proc: \"s\", action: \"open\", file: \"$filename\"}\n";
 	open F, $filename;
-	read STDIN, my$length, 4; # Was wenn < 4 ?
+	my$length = readg 4;
 	$length = unpack 'N', $length;
 	seek F, $length, 0;
  	while( read( F, my$r, 1400)) {
 		print pack( 'nNA*', 2, length($r), $r);
 	}
-	print STDERR "{ts: \"".ts."\", proc: \"s\", action: \"close\", file: \"$filename\"}\n";
 	close F;
 }
 closedir DH;
-#print STDERR "{ts: \"".ts."\", proc: \"s\", exit: 0}\n";
 exit( 0);