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--eta was broken. Now fixed.
Race condition in sem fixed with setsid(). Passes unittest.
This commit is contained in:
Ole Tange
parent
adff24a1a0
commit
0fbd1b2653
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@ -1,16 +1,7 @@
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Bug: seq 1 10 | stdout parallel --eta echo
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# Examples of sem
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Weird bug - only interactive
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perlipc: Complete Dissociation of Child from Parent
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Setting $SIG{CHLD} to 'IGNORE'
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echo '### BUG: Test --fg followed by --bg'
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parallel -u --fg --semaphore seq 1 10 '|' pv -qL 20
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parallel -u --bg --semaphore seq 11 20 '|' pv -qL 20
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parallel -u --fg --semaphore seq 21 30 '|' pv -qL 20
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parallel -u --bg --semaphore seq 31 40 '|' pv -qL 20
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sem --wait
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find . -execdir sem -j100 'sleep 4; echo {}' \; ; sem --wait
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@ -18,46 +9,12 @@ fex syntax for splitting fields
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http://www.semicomplete.com/projects/fex/
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sql :foo 'select * from bar' | parallel --fex '|{1,2}' do_stuff {2} {1}
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Unittest: --colsep + multiple -a
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Import sql
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inputfile tabel, Split colonner til {n}
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sql :foo 'select * from bar' | parallel --colsep '\|' do_stuff {4} {1}
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if(defined $::opt_colsep and defined @::opt_a and @::opt_a > 1) {
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# must be done after converting :::: to -a -a
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warn("--colsep incompatible with multiple argument files. Ignoring --colsep");
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$::opt_colsep = undef;
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}
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if($::opt_colsep) {
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# read input either from -a or from stdin
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my $max_cols = 0;
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my @table;
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my $lineno = 0;
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$Global::input_is_filename = 0; # cheat get_next_arg into not quoting
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while get_next_arg {
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my @cols = split /$::opt_colsep/o, $_;
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if ($Global::trim) {
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for(@cols) { s/^\s+//; s/\s+$//; }
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}
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$max_cols = max($#cols+1,$max_cols);
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@table[$lineno++] = @cols;
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}
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$::opt_N = $max_cols;
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for ($lineno = 0; $lineno <= $#table; $lineno++) {
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if (not defined $table[$lineno][$max_col-1]) {
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# Make sure the table has the same columns for all rows
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$table[$lineno][$max_col-1] = "";
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}
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unget_arg(@table[$lineno]);
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}
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}
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--autocolsep: Læs alle linjer.
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Prøv fastlængde: Find tegn, som står i alle linjer på de samme pladser. Risiko for falske pos
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Prøv fieldsep: Find eet tegn, som optræder det samme antal gange i alle linjer (tab sep)
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@ -117,6 +74,9 @@ find music-files -type f | parallel -j+0 lame {} -o {.}.mp3
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find music-files -type f | parallel -j+0 -S :,computer1.examle.com,computer2.example.com \
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--eta --trc {.}.mp3 lame {} -o {.}.mp3
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# Colsep
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# sem
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=head1 YouTube video
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@ -91,7 +91,9 @@ download at: http://ftp.gnu.org/gnu/parallel/
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New in this release:
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* Counting semaphore functionality: start a job in the background. If
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N jobs are already running, wait for one to complete.
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N jobs are already running, wait for one to complete. Examples:
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sem 'sleep 2; echo foo'; sem 'sleep 1; echo bar'; sem --wait
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sem -j2 'sleep 2; echo foo'; sem -j2 'sleep 1; echo bar'; sem --wait
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* With --colsep a table can be used as input. Example:
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cat tab_sep_table | parallel --colsep '\t' echo col1 {1} col2 {2}
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60
src/parallel
60
src/parallel
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@ -1265,11 +1265,11 @@ To run:
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you can run:
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parallel -a table_file.tsv --colsep '\t' cmd -o {2} -i {1}
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B<parallel -a table_file.tsv --colsep '\t' cmd -o {2} -i {1}>
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Note: The default for GNU B<parallel> is to remove the spaces around the columns. To keep the spaces:
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parallel -a table_file.tsv --trim n --colsep '\t' cmd -o {2} -i {1}
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B<parallel -a table_file.tsv --trim n --colsep '\t' cmd -o {2} -i {1}>
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=head1 EXAMPLE: Working as cat | sh. Ressource inexpensive jobs and evaluation
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@ -2077,8 +2077,8 @@ B<xjobs>(1), B<prll>(1), B<dxargs>(1), B<mdm>(1)
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use IPC::Open3;
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use Symbol qw(gensym);
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use IO::File;
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use POSIX ":sys_wait_h";
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use File::Temp qw/ tempfile tempdir /;
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use POSIX qw/:sys_wait_h setsid/;
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use File::Temp qw/tempfile tempdir/;
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use Getopt::Long;
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use strict;
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@ -2109,8 +2109,6 @@ sub acquire_semaphore {
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my $sem = Semaphore->new($Semaphore::name,$Global::host{':'}{'max_no_of_running'});
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$sem->acquire();
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debug("run");
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$Global::argfile = open_or_exit("/dev/null");
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unget_arg("");
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if($Semaphore::fg) {
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# skip
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} else {
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@ -2118,14 +2116,11 @@ sub acquire_semaphore {
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# therefore release and re-acquire the semaphore
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$sem->release();
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if(fork()) {
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# TODO figure out the race condition that requires this sleep 1
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# sem --fg seq 21 30
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# sem --bg seq 31 40
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sleep(1);
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exit(0);
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} else {
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# child
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# Get a semaphore for this pid
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die "Can't start a new session: $!" if setsid() == -1;
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$sem = Semaphore->new($Semaphore::name,$Global::host{':'}{'max_no_of_running'});
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$sem->acquire();
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}
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@ -2316,6 +2311,25 @@ sub parse_options {
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$Global::Xargs = 1;
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}
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# Semaphore defaults
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# Must be done before computing number of processes and max_line_length as no args
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$Global::semaphore ||= ($0 =~ m:(^|/)sem$:); # called as 'sem'
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if($Global::semaphore) {
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# A semaphore does not take input from neither stdin nor file
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$Global::argfile = open_or_exit("/dev/null");
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unget_arg("");
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$Semaphore::timeout = $::opt_semaphoretimeout || 0;
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if(defined $::opt_semaphorename) {
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$Semaphore::name = $::opt_semaphorename;
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} else {
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$Semaphore::name = `tty`;
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chomp $Semaphore::name;
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}
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$Semaphore::fg = $::opt_fg;
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$Semaphore::wait = $::opt_wait;
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$Global::default_simultaneous_sshlogins = 1;
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}
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if(defined $::opt_eta) {
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# must be done after opt_a
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$::opt_progress = $::opt_eta;
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@ -2345,22 +2359,6 @@ sub parse_options {
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print STDERR ("Warning: using -X or -m with --sshlogin may fail\n");
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}
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# Semaphore defaults
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# Must be done before computing number of processes
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$Global::semaphore ||= ($0 =~ m:(^|/)sem$:); # called as 'sem'
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if($Global::semaphore) {
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$Semaphore::timeout = $::opt_semaphoretimeout || 0;
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if(defined $::opt_semaphorename) {
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$Semaphore::name = $::opt_semaphorename;
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} else {
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$Semaphore::name = `tty`;
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chomp $Semaphore::name;
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}
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$Semaphore::fg = $::opt_fg;
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$Semaphore::wait = $::opt_wait;
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$Global::default_simultaneous_sshlogins = 1;
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}
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# Needs to be done after setting $Global::command and $Global::command_line_max_len
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# as '-m' influences the number of commands that needs to be run
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if(defined $::opt_P) {
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@ -2518,7 +2516,7 @@ sub trim {
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# lr|rl = both
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# Returns:
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# string with white space removed as needed
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my (@strings) = (@_);
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my (@strings) = map { defined $_ ? $_ : "" } (@_);
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my $arg;
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if($Global::trim eq "n") {
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# skip
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@ -3774,9 +3772,11 @@ sub more_arguments {
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# Returns:
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# whether there are more arguments to be processed or not
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my $fh = shift || $Global::argfile;
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return (@Global::unget_argv or @{$Global::unget_line{$fh}} or
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@{$Global::unget_col{$fh}} or @Global::unget_arg or not
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eof $fh);
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return (
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@Global::unget_argv or
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(defined $Global::unget_line{$fh} and @{$Global::unget_line{$fh}}) or
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(defined $Global::unget_col{$fh} and @{$Global::unget_col{$fh}})
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or @Global::unget_arg or not eof $fh);
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}
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sub get_line_from_fh {
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sem --wait
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echo done
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echo '### Test similar example as from man page'
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for i in 0.5 0.1 0.2 0.3 0.4 ; do
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echo $i
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sem -j+0 sleep $i ";" echo done $i
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echo '### Test similar example as from man page - run 2 jobs simultaneously'
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echo 'Expect done: 1 2 5 3 4'
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for i in 5 1 2 3 4 ; do
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echo Scheduling $i
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sem -j2 -u echo starting $i ";" sleep $i ";" echo done $i
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done
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sem --wait
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echo '### BUG: Test --fg followed by --bg'
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parallel -u --fg --semaphore seq 1 10 '|' pv -qL 20
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parallel -u --bg --semaphore seq 11 20 '|' pv -qL 20
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parallel -u --fg --semaphore seq 21 30 '|' pv -qL 20
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parallel -u --bg --semaphore seq 31 40 '|' pv -qL 20
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echo '### Test --fg followed by --bg'
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parallel -u --fg --semaphore seq 1 10 '|' pv -qL 30
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parallel -u --bg --semaphore seq 11 20 '|' pv -qL 30
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parallel -u --fg --semaphore seq 21 30 '|' pv -qL 30
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parallel -u --bg --semaphore seq 31 40 '|' pv -qL 30
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sem --wait
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@ -37,6 +37,12 @@ echo '### Test of tab as colsep'
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printf 'def\tabc\njkl\tghi' | parallel -k --colsep '\t' echo {2} {1}
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parallel -k -a <(printf 'def\tabc\njkl\tghi') --colsep '\t' echo {2} {1}
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echo '### Test of multiple -a plus colsep'
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parallel -k -a <(printf 'def\njkl\n') -a <(printf 'abc\tghi\nmno\tpqr') --colsep '\t' echo {2} {1}
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echo '### Test of multiple -a no colsep'
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parallel -k -a <(printf 'ghi\npqr\n') -a <(printf 'abc\tdef\njkl\tmno') echo {2} {1}
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echo '### Test of quoting after colsplit'
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parallel --colsep % echo {2} {1} ::: '>/dev/null%>/tmp/null'
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7
unittest/tests-to-run/test30.sh
Normal file
7
unittest/tests-to-run/test30.sh
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@ -0,0 +1,7 @@
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#!/bin/bash
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echo '### Test of --eta'
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seq 1 10 | stdout parallel --eta "sleep 1; echo {}" | wc -l
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echo '### Test of --progress'
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seq 1 10 | stdout parallel --progress "sleep 1; echo {}" | wc -l
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@ -54,18 +54,24 @@ job2
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job1
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job2
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done
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### Test similar example as from man page
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0.5
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0.1
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0.2
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done 0.1
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0.3
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done 0.5
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0.4
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done 0.2
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done 0.3
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done 0.4
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### BUG: Test --fg followed by --bg
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### Test similar example as from man page - run 2 jobs simultaneously
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Expect done: 1 2 5 3 4
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Scheduling 5
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Scheduling 1
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starting 5
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Scheduling 2
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starting 1
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done 1
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Scheduling 3
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starting 2
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done 2
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Scheduling 4
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starting 3
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done 5
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starting 4
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done 3
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done 4
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### Test --fg followed by --bg
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1
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2
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3
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@ -38,6 +38,14 @@ abc def
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ghi jkl
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abc def
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ghi jkl
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### Test of multiple -a plus colsep
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abc def
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ghi jkl
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mno
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pqr
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### Test of multiple -a no colsep
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abc def ghi
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jkl mno pqr
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### Test of quoting after colsplit
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>/tmp/null >/dev/null
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### Test of --colsep as regexp
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4
unittest/wanted-results/test30
Normal file
4
unittest/wanted-results/test30
Normal file
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@ -0,0 +1,4 @@
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### Test of --eta
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16
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### Test of --progress
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16
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