eleksir/wm-helpers
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i3status-timers.json-io: make output more gently, suppress errors on unsucessful spawn

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eleksir
2020-03-15 17:12:08 +03:00
parent 1687579c16
commit 0cbe1eb7a0
1 changed files with 10 additions and 8 deletions
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18
i3status-timers.json-io
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@@ -8,7 +8,6 @@ use 5.10.0;
use utf8; use utf8;
use JSON::XS; use JSON::XS;
use threads; use threads;
#use Data::Dumper;
binmode STDOUT; binmode STDOUT;
binmode STDERR; binmode STDERR;
@@ -165,10 +164,12 @@ while (1) {
$jo->[6]->{color} = '#3e78fd'; $jo->[6]->{color} = '#3e78fd';
@{$je} = (@{$jo}, @{$C}); @{$je} = (@{$jo}, @{$C});
@{$je} = reverse(@{$je}); @{$je} = reverse(@{$je});
syswrite STDOUT, encode_json($je) . ",\n"; if (my $output = encode_json($je)) {
syswrite STDOUT, encode_json($je) . ",\n";
}
$jf = 0; $jf = 0;
} }
# tick timers # tick timers
@@ -501,24 +502,25 @@ sub caps_find() {
sub spawn (@) { sub spawn (@) {
my @args = @_; my @args = @_;
# fork, detach, exec
my $pid = fork(); my $pid = fork();
if ($pid) { # Parent if ($pid) { # Parent
1; return;
} elsif ($pid == 0) { # Child } elsif ($pid == 0) { # Child
# we need no io streams here, right?
close STDOUT; close STDOUT;
close STDERR; close STDERR;
close STDIN; close STDIN;
my $prg = shift(@args); my $prg = shift(@args);
# weird situation, silently quit here :)
exit 0 unless(defined($prg));
if (@args > 0) { if (@args > 0) {
exec $prg @args; exec $prg @args;
} else { } else {
exec $prg; exec $prg;
} }
} else { # Unable to fork } else { # Unable to fork()
die "ERROR: Could not fork new process: $!\n"; warn "ERROR: Could not fork new process: $!\n";
} }
} }