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src/parallel:parse_options refactoring
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Ole Tange
parent
4d4cd03a0d
commit
3ab7103c70
67
src/parallel
67
src/parallel
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@ -241,6 +241,7 @@ If the evaluated number is less than 1 then 1 will be used. See also
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Keep sequence of output same as the order of input. If jobs 1 2 3 4
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end in the sequence 3 1 4 2 the output will still be 1 2 3 4.
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=item B<--max-args>=I<max-args>
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=item B<-n> I<max-args>
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@ -252,6 +253,14 @@ GNU B<parallel> will exit.
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Only used with B<-m> and B<-X>.
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=item B<--max-line-length-allowed>
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Print the maximal number characters allowed on the command line and
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exit (used by GNU B<parallel> itself to determine the line length
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on remote machines).
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=item B<--number-of-cpus>
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Print the number of CPUs and exit (used by GNU B<parallel> itself to
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@ -1129,14 +1138,20 @@ use File::Temp qw/ tempfile tempdir /;
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use Getopt::Long;
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use strict;
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my ($processes,$command);
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parse_options();
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parse_sshlogin();
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init_run_jobs();
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DoNotReap();
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start_more_jobs();
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ReapIfNeeded();
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drain_job_queue();
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sub parse_options {
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# Defaults:
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$Global::version = 20100428;
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$Global::progname = 'parallel';
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$Global::debug = 0;
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$Global::processes_to_run = 10;
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$command = undef;
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$Global::verbose = 0;
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$Global::grouped = 1;
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$Global::keeporder = 0;
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@ -1165,6 +1180,7 @@ GetOptions("debug|D" => \$::opt_D,
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"I=s" => \$::opt_I,
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"extensionreplace|U=s" => \$::opt_U,
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"jobs|j=s" => \$::opt_P,
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"max-line-length-allowed" => \$::opt_max_line_length_allowed,
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"number-of-cpus" => \$::opt_number_of_cpus,
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"number-of-cores" => \$::opt_number_of_cores,
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"sshlogin|S=s" => \@Global::sshlogin,
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@ -1187,9 +1203,7 @@ GetOptions("debug|D" => \$::opt_D,
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"interactive|p" => \$::opt_p,
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## How to unittest? tty skal emuleres
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# xargs-compatibility - implemented, unittest - man missing
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#none
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# xargs-compatability - unimplemented
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# xargs-compatibility - unimplemented
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"L=i" => \$::opt_L,
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"max-lines|l:i" => \$::opt_l,
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## (echo a b;echo c) | xargs -l1 echo
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@ -1221,6 +1235,7 @@ if(defined $::opt_n and $::opt_n) { $Global::max_number_of_args = $::opt_n; }
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if(defined $::opt_help) { die_usage(); }
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if(defined $::opt_number_of_cpus) { print no_of_cpus(),"\n"; exit(0); }
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if(defined $::opt_number_of_cores) { print no_of_cores(),"\n"; exit(0); }
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if(defined $::opt_max_line_length_allowed) { print real_max_length(),"\n"; exit(0); }
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if(defined $::opt_version) { version(); exit(0); }
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if(defined $::opt_show_limits) { show_limits(); }
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if(defined $::opt_sshloginfile) { read_sshloginfile($::opt_sshloginfile); }
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@ -1245,13 +1260,7 @@ if(@ARGV) {
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if(defined $::opt_P) { $Global::processes_to_run = compute_number_of_processes($::opt_P); }
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$Global::job_end_sequence=1;
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parse_sshlogin();
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init_run_jobs();
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DoNotReap();
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start_more_jobs();
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ReapIfNeeded();
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drain_job_queue();
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}
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#
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# Generating the command line
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@ -1373,9 +1382,6 @@ sub shell_quote {
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my (@strings) = (@_);
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my $arg;
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for $arg (@strings) {
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# what is the right thing to do about '-' at start of line?
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# maybe substitute with './'
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# so it is not regarded as -option.
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$arg =~ s/\\/\\\\/g;
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$arg =~ s/([\#\?\`\(\)\*\>\<\~\|\; \"\!\$\&\'])/\\$1/g;
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@ -1587,6 +1593,7 @@ sub enough_file_handles {
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sub user_requested_processes {
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# Parse the number of processes that the user asked for
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my $opt_P = shift;
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my $processes;
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if(defined $opt_P) {
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if($opt_P =~ /^\+(\d+)$/) {
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# E.g. -P +2
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@ -1622,8 +1629,8 @@ sub no_of_cores {
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sub no_of_cpus {
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if(not $Global::no_of_cpus) {
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my $no_of_cpus = (no_of_cpus_darwin()
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|| no_of_cpus_gnu_linux()
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my $no_of_cpus = (no_of_cpus_gnu_linux()
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|| no_of_cpus_darwin()
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|| no_of_cpus_solaris());
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if($no_of_cpus) {
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$Global::no_of_cpus = $no_of_cpus;
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@ -1746,7 +1753,7 @@ sub start_more_jobs {
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# do {
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# $started_jobs_this_round = 0;
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# for slave in sshlogins {
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# if running_jobs{slave} < processed_to_run{$slave} {
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# if running_jobs{slave} < processes_to_run{$slave} {
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# my $started += start_another_job($slave)
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# $started_jobs_this_round += started
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# $jobs_started{$slave}++
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@ -2110,3 +2117,27 @@ $main::opt_P = $main::opt_i = $main::opt_p = $main::opt_a =
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$main::opt_version = $main::opt_L = $main::opt_l =
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$main::opt_show_limits = $main::opt_n = $main::opt_e = $main::opt_verbose =
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$main::opt_E = $main::opt_r = $Global::xargs = $Global::keeporder = 0;
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# Per host variables:
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# Can depend on OS
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#$Global::command_line_max_len =
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# Can depend on processes_available_by_system_limit
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#$Global::processes_to_run =
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#
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# $sshlogin, $ncpus
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# $Global::running_jobs = 0;
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# $Global::running{$pid}{'seq'} = printsequence
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# $Global::running{$pid}{sshlogin} = server to run on
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# $Global::host{sshlogin}{'no_of_running'} = number of currently running jobs
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# $Global::host{sshlogin}{'ncpus'} = number of cpus
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# $Global::host{sshlogin}{'maxlength'} = $Global::command_line_max_len
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# $Global::host{sshlogin}{'max_no_of_running'} = number of currently running jobs
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# $Global::running_jobs = sum $Global::host{sshlogin}{'no_of_running'}
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# Hvordan udregnes system limits på remote systems hvis jeg ikke ved, hvormange
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# argumenter, der er? Lav system limits lokalt og lad det være max
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# Compress ide: identificer blokke af samme type (ascii binary picture
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# sound). Flyt dem rundt, så de står ved siden af hinanden. Kompremer
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# blokkene samlet med den mest egnede algoritme.
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# Moved parse options to parse_options
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