Experiment.pm.in 36.9 KB
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#!/usr/bin/perl -wT
#
# EMULAB-COPYRIGHT
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# Copyright (c) 2005, 2006, 2007 University of Utah and the Flux Group.
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# All rights reserved.
#
package Experiment;

use strict;
use Exporter;
use vars qw(@ISA @EXPORT);

@ISA    = "Exporter";
@EXPORT = qw ( );

# Must come after package declaration!
use lib '@prefix@/lib';
use libdb;
use libtestbed;
use libtblog;
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use Project;
use Group;
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use English;
use Data::Dumper;
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use File::Basename;
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use overload ('""' => 'Stringify');

# Configure variables
my $TB		= "@prefix@";
my $BOSSNODE    = "@BOSSNODE@";
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my $CONTROL	= "@USERNODE@";
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my $EVENTSYS    = @EVENTSYS@;
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my $STAMPS      = @STAMPS@;
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my $TEVC	= "$TB/bin/tevc";
my $DBCONTROL   = "$TB/sbin/opsdb_control";
my $RSYNC	= "/usr/local/bin/rsync";
my $MKEXPDIR    = "$TB/libexec/mkexpdir";
my $TBPRERUN    = "$TB/bin/tbprerun";
my $TBSWAP      = "$TB/bin/tbswap";
my $TBREPORT    = "$TB/bin/tbreport";
my $TBEND       = "$TB/bin/tbend";
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my $DU          = "/usr/bin/du";
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# Hmm, this is silly. 
if ($EVENTSYS) {
    require event;
    import event;
}

# Cache of instances to avoid regenerating them.
my %experiments   = ();
my $debug	  = 0;

# Little helper and debug function.
sub mysystem($)
{
    my ($command) = @_;

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    my $cwd;
    chomp($cwd = `pwd`);

    print STDERR "Running '$command' in $cwd\n"
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	if ($debug);
    return system($command);
}

#
# Lookup an experiment and create a class instance to return.
#
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sub Lookup($$;$)
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{
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    my ($class, $arg1, $arg2) = @_;
    my $idx;

    #
    # A single arg is either an index or a "pid,eid" or "pid/eid" string.
    #
    if (!defined($arg2)) {
	if ($arg1 =~ /^(\d*)$/) {
	    $idx = $1;
	}
	elsif ($arg1 =~ /^([-\w]*),([-\w]*)$/ ||
	       $arg1 =~ /^([-\w]*)\/([-\w]*)$/) {
	    $arg1 = $1;
	    $arg2 = $2;
	}
	else {
	    return undef;
	}
    }
    elsif (! (($arg1 =~ /^[-\w]*$/) && ($arg2 =~ /^[-\w]*$/))) {
	return undef;
    }

    #
    # Two args means lookup by pid,eid instead of exptidx.
    #
    if (defined($arg2)) {
	my $result =
	    DBQueryWarn("select idx from experiments ".
			"where pid='$arg1' and eid='$arg2'");

	return undef
	    if (! $result || !$result->numrows);

	($idx) = $result->fetchrow_array();
    }
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    # Look in cache first
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    return $experiments{"$idx"}
        if (exists($experiments{"$idx"}));
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    my $query_result =
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	DBQueryWarn("select * from experiments where idx='$idx'");
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    return undef
	if (!$query_result || !$query_result->numrows);

    my $self         = {};
    $self->{'EXPT'}  = $query_result->fetchrow_hashref();

    $query_result =
	DBQueryWarn("select * from experiment_stats where exptidx='$idx'");
	
    return undef
	if (!$query_result || !$query_result->numrows);
    
    $self->{'STATS'} = $query_result->fetchrow_hashref();
    
    # We get this lazily.
    $self->{'RSRC'}  = undef;

    bless($self, $class);
    
    # Add to cache. 
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    $experiments{"$idx"} = $self;
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    return $self;
}
# accessors
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sub field($$) { return ((! ref($_[0])) ? -1 : $_[0]->{'EXPT'}->{$_[1]}); }
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sub stats($$) { return ((! ref($_[0])) ? -1 : $_[0]->{'STATS'}->{$_[1]}); }
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sub pid($)		{ return field($_[0], 'pid'); }
sub gid($)		{ return field($_[0], 'gid'); }
sub pid_idx($)		{ return field($_[0], 'pid_idx'); }
sub gid_idx($)		{ return field($_[0], 'gid_idx'); }
sub eid($)		{ return field($_[0], 'eid'); }
sub idx($)		{ return field($_[0], 'idx'); }
sub path($)		{ return field($_[0], 'path'); }
sub state($)		{ return field($_[0], 'state'); }
sub batchstate($)	{ return field($_[0], 'batchstate'); }
sub batchmode($)	{ return field($_[0], 'batchmode'); }
sub rsrcidx($)		{ return stats($_[0], 'rsrcidx'); }
sub creator($)		{ return field($_[0], 'expt_head_uid');}
sub canceled($)		{ return field($_[0], 'canceled'); }
sub locked($)		{ return field($_[0], 'expt_locked'); }
sub elabinelab($)	{ return field($_[0], 'elab_in_elab');}
sub elabinelab_eid($)   { return field($_[0], 'elabinelab_eid');}
sub elabinelab_exptidx($){return field($_[0], 'elabinelab_exptidx');}
sub lockdown($)		{ return field($_[0], 'lockdown'); }
sub created($)		{ return field($_[0], 'expt_created'); }
sub swapper($)		{ return field($_[0], 'expt_swap_uid');}
sub swappable($)	{ return field($_[0], 'swappable');}
sub idleswap($)		{ return field($_[0], 'idleswap');}
sub autoswap($)		{ return field($_[0], 'autoswap');}
sub noswap_reason($)	{ return field($_[0], 'noswap_reason');}
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sub noidleswap_reason($){ return field($_[0], 'noidleswap_reason');}
sub idleswap_timeout($) { return field($_[0], 'idleswap_timeout');}
sub autoswap_timeout($) { return field($_[0], 'autoswap_timeout');}
sub prerender_pid($)    { return field($_[0], 'prerender_pid');}
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sub dpdb($)		{ return field($_[0], 'dpdb');}
sub dpdbname($)         { return field($_[0], 'dpdbname');}
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sub dpdbpassword($)     { return field($_[0], 'dpdbpassword');}
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sub instance_idx($)     { return field($_[0], 'instance_idx'); }
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sub creator_idx($)      { return field($_[0], 'creator_idx');}
sub swapper_idx($)      { return field($_[0], 'swapper_idx');}
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sub use_ipassign($)     { return field($_[0], 'use_ipassign');}
sub ipassign_args($)    { return field($_[0], 'ipassign_args');}
sub security_level($)   { return field($_[0], 'security_level');}
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#
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# Lookup an experiment given an experiment index.
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#
sub LookupByIndex($$)
{
    my ($class, $exptidx) = @_;

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    return Experiment->Lookup($exptidx);
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}

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#
# LockTables simple locks the given tables, and then refreshes the
# experiment instance (thereby getting the data from the DB after
# the tables are locked).
#
sub LockTables($;$)
{
    my ($self, $spec) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    $spec  = "experiments write"
	if (!defined($spec));
    $spec .= ", experiment_stats read";
    
    DBQueryWarn("lock tables $spec")
	or return -1;
	
    return $self->Refresh();
}
sub UnLockTables($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    DBQueryWarn("unlock tables")
	or return -1;
    return 0;
}

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#
# Create a new experiment. This installs the new record in the DB,
# and returns an instance. There is some bookkeeping along the way.
#
sub Create($$$$)
{
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    my ($class, $group, $eid, $argref) = @_;
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    my $exptidx;
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    my $now = time();
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    return undef
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	if (ref($class) || !ref($group));

    my $pid     = $group->pid();
    my $gid     = $group->gid();
    my $pid_idx = $group->pid_idx();
    my $gid_idx = $group->gid_idx();
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    #
    # The pid/eid has to be unique, so lock the table for the check/insert.
    #
    DBQueryWarn("lock tables experiments write, ".
		"            experiment_stats write, ".
		"            experiment_resources write, ".
		"            emulab_indicies write, ".
		"            testbed_stats read")
	or return undef;

    my $query_result =
	DBQueryWarn("select pid,eid from experiments ".
		    "where eid='$eid' and pid='$pid'");

    if ($query_result->numrows) {
	DBQueryWarn("unlock tables");
	tberror("Experiment $eid in project $pid already exists!");
	return undef;
    }

    #
    # Grab the next highest index to use. We used to use an auto_increment
    # field in the table, but if the DB is ever "dropped" and recreated,
    # it will reuse indicies that are crossed referenced in the other two
    # tables.
    #
    $query_result = 
	DBQueryWarn("select idx from emulab_indicies ".
		    "where name='next_exptidx'");

    if (!$query_result) {
	DBQueryWarn("unlock tables");
	return undef;
    }

    # Seed with a proper value.
    if (! $query_result->num_rows) {
	$query_result =
	    DBQueryWarn("select MAX(exptidx) + 1 from experiment_stats");

	if (!$query_result) {
	    DBQueryWarn("unlock tables");
	    return undef;
	}
	($exptidx) = $query_result->fetchrow_array();

	# First ever experiment!
	$exptidx = 1
	    if (!defined($exptidx));

	if (! DBQueryWarn("insert into emulab_indicies (name, idx) ".
			  "values ('next_exptidx', $exptidx)")) {
	    DBQueryWarn("unlock tables");
	    return undef;
	}

    }
    else {
	($exptidx) = $query_result->fetchrow_array();
    }
    my $nextidx = $exptidx + 1;
    
    if (! DBQueryWarn("update emulab_indicies set idx='$nextidx' ".
		      "where name='next_exptidx'")) {
	DBQueryWarn("unlock tables");
	return undef;
    }

    #
    # Lets be really sure!
    #
    foreach my $table ("experiments", "experiment_stats",
		       "experiment_resources", "testbed_stats") {

	my $slot = (($table eq "experiments") ? "idx" : "exptidx");
	
	$query_result =
	    DBQueryWarn("select * from $table where ${slot}=$exptidx");

	if (! $query_result) {
	    DBQueryWarn("unlock tables");
	    return undef;
	}
	if ($query_result->numrows) {
	    DBQueryWarn("unlock tables");
	    tberror("Experiment index $exptidx exists in $table; ".
		    "this is bad!");
	    return undef;
	}
    }

    #
    # Insert the record. This reserves the pid/eid for us. 
    #
    # Some fields special cause of quoting.
    #
    my $description = DBQuoteSpecial($argref->{'expt_name'});
    delete($argref->{'expt_name'});
    my $noswap_reason = DBQuoteSpecial($argref->{'noswap_reason'});
    delete($argref->{'noswap_reason'});
    my $noidleswap_reason = DBQuoteSpecial($argref->{'noidleswap_reason'});
    delete($argref->{'noidleswap_reason'});

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    # we override this below
    delete($argref->{'idx'})
	if (exists($argref->{'idx'}));

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    my $query = "insert into experiments set ".
	join(",", map("$_='" . $argref->{$_} . "'", keys(%{$argref})));

    # Append the rest
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    $query .= ",expt_created=FROM_UNIXTIME('$now')";
    $query .= ",expt_locked=now(),pid='$pid',eid='$eid'";
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    $query .= ",pid_idx='$pid_idx',gid='$gid',gid_idx='$gid_idx'";
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    $query .= ",expt_name=$description";
    $query .= ",noswap_reason=$noswap_reason";
    $query .= ",noidleswap_reason=$noidleswap_reason";
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    $query .= ",idx=$exptidx";
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    if (! DBQueryWarn($query)) {
	DBQueryWarn("unlock tables");
	tberror("Error inserting experiment record for $pid/$eid!");	
	return undef;
    }

    #
    # Create an experiment_resources record for the above record.
    #
    $query_result =
	DBQueryWarn("insert into experiment_resources (tstamp, exptidx) ".
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		    "values (FROM_UNIXTIME('$now'), $exptidx)");
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    if (!$query_result) {
	DBQueryWarn("delete from experiments where pid='$pid' and eid='$eid'");
	DBQueryWarn("unlock tables");
	tberror("Error inserting experiment resources record for $pid/$eid!");
	return undef;
    }
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    my $rsrcidx     = $query_result->insertid;
    my $creator_uid = $argref->{'expt_head_uid'};
    my $creator_idx = $argref->{'creator_idx'};
    my $batchmode   = $argref->{'batchmode'};
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    #
    # Now create an experiment_stats record to match.
    #
    if (! DBQueryWarn("insert into experiment_stats ".
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		      "(eid, pid, creator, creator_idx, gid, created, ".
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		      " batch, exptidx, rsrcidx, pid_idx, gid_idx) ".
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		      "values('$eid', '$pid', '$creator_uid', '$creator_idx',".
		      "       '$gid', FROM_UNIXTIME('$now'), ".
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		      "        $batchmode, $exptidx, $rsrcidx, ".
		      "        $pid_idx, $gid_idx)")) {
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	DBQueryWarn("delete from experiments where pid='$pid' and eid='$eid'");
	DBQueryWarn("delete from experiment_resources where idx=$rsrcidx");
	DBQueryWarn("unlock tables");
	tberror("Error inserting experiment stats record for $pid/$eid!");
	return undef;
    }

    #
    # Safe to unlock; all tables consistent.
    #
    if (! DBQueryWarn("unlock tables")) {
	DBQueryWarn("delete from experiments where pid='$pid' and eid='$eid'");
	DBQueryWarn("delete from experiment_resources where idx=$rsrcidx");
	DBQueryWarn("delete from experiment_stats where exptidx=$exptidx");
	tberror("Error unlocking tables!");
	return undef
    }

    return Experiment->Lookup($pid, $eid);
}

#
# Delete experiment. Optional purge argument says to remove all trace
# (typically, the stats are kept).
#
sub Delete($;$)
{
    my ($self, $purge) = @_;

    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    $purge = 0
	if (!defined($purge));

    TBExptDestroy($pid, $eid);

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    return 0
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	if (! $purge);
    
    #
    # Now we can clean up the stats records. 
    #
    my $exptidx = $self->idx();
    my $rsrcidx = $self->rsrcidx();
    
    DBQueryWarn("DELETE from experiment_resources ".
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		"WHERE idx=$rsrcidx")
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	if (defined($rsrcidx) && $rsrcidx);
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    DBQueryWarn("DELETE from testbed_stats ".
		"WHERE exptidx=$exptidx");

    # This must be last cause it provides the unique exptidx above.
    DBQueryWarn("DELETE from experiment_stats ".
		"WHERE eid='$eid' and pid='$pid' and exptidx=$exptidx");

    return 0;
}

#
# Refresh a class instance by reloading from the DB.
#
sub Refresh($)
{
    my ($self) = @_;

    return -1
	if (! ref($self));

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    my $idx = $self->idx();
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    my $query_result =
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	DBQueryWarn("select * from experiments where idx=$idx");
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    return -1
	if (!$query_result || !$query_result->numrows);

    $self->{'EXPT'}  = $query_result->fetchrow_hashref();

    $query_result =
	DBQueryWarn("select * from experiment_stats where exptidx='$idx'");
	
    return -1
	if (!$query_result || !$query_result->numrows);
    
    $self->{'STATS'} = $query_result->fetchrow_hashref();

    # And this is lazy again.
    $self->{'RSRC'}  = undef;
    return 0;
}

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#
# Perform some updates ...
#
sub Update($$)
{
    my ($self, $argref) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    my $query = "update experiments set ".
	join(",", map("$_='" . $argref->{$_} . "'", keys(%{$argref})));

    $query .= " where pid='$pid' and eid='$eid'";

    return -1
	if (! DBQueryWarn($query));

    return Refresh($self);
}

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#
# Stringify for output.
#
sub Stringify($)
{
    my ($self) = @_;
    
    my $pid   = $self->pid();
    my $eid   = $self->eid();

    return "[Experiment: $pid/$eid]";
}

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#
# Generic function to look up some table values given a set of desired
# fields and some conditions. Pretty simple, not widely useful, but it
# helps to avoid spreading queries around then we need to. 
#
sub TableLookUp($$$;$)
{
    my ($self, $table, $fields, $conditions) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));
    
    my $exptidx = $self->idx();

    if (defined($conditions) && "$conditions" ne "") {
	$conditions = "and ($conditions)";
    }
    else {
	$conditions = "";
    }

    return DBQueryWarn("select distinct $fields from $table ".
		       "where exptidx='$exptidx' $conditions");
}

#
# Ditto for update.
#
sub TableUpdate($$$;$)
{
    my ($self, $table, $sets, $conditions) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    if (ref($sets) eq "HASH") {
	$sets = join(",", map("$_='" . $sets->{$_} . "'", keys(%{$sets})));
    }
    my $exptidx = $self->idx();

    if (defined($conditions) && "$conditions" ne "") {
	$conditions = "and ($conditions)";
    }
    else {
	$conditions = "";
    }

    return 0
	if (DBQueryWarn("update $table set $sets ".
			"where exptidx='$exptidx' $conditions"));
    return -1;
}

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#
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# Check permissions. Allow for either uid or a user ref until all code
# updated.
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#
sub AccessCheck($$$)
{
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    my ($self, $user, $access_type) = @_;
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    # Must be a real reference. 
    return -1
	if (! ref($self));

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    my $uid = (ref($user) ? $user->uid() : $user);
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    my $pid = $self->pid();
    my $eid = $self->eid();

    return TBExptAccessCheck($uid, $pid, $eid, $access_type);
}

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#
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# Create the directory structure. A template_mode experiment is the one
# that is created for the template wrapper, not one created for an
# instance of the experiment. The path changes slightly, although that
# happens down in the mkexpdir script.
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#
sub CreateDirectory($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

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    my $idx = $self->idx();
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    mysystem("$MKEXPDIR $idx");
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    return -1
	if ($?);
    # mkexpdir sets the path in the DB. 
    return Refresh($self)
}

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#
# Load the project object for an experiment.
#
sub GetProject($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $project = Project->Lookup($self->pid_idx());
    
    if (! defined($project)) {
	print("*** WARNING: Could not lookup project object for $self!", 1);
	return undef;
    }
    return $project;
}

#
# Load the group object for an experiment.
#
sub GetGroup($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $group = Group->Lookup($self->gid_idx());
    
    if (! defined($group)) {
	print("*** WARNING: Could not lookup group object for $self!\n");
	return undef;
    }
    return $group;
}

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#
# Return the user and work directories. The workdir in on boss and where
# scripts chdir to when they run. The userdir is across NFS on ops, and
# where files are copied to. 
#
sub WorkDir($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return TBDB_EXPT_WORKDIR() . "/${pid}/${eid}";
}
sub UserDir($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    return $self->path();
}

# Event/Web key filenames.
sub EventKeyPath($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    return UserDir($self) . "/tbdata/eventkey"; 
}
sub WebKeyPath($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    return UserDir($self) . "/tbdata/webkey"; 
}

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#
# Add an environment variable.
#
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sub AddEnvVariable($$$;$)
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{
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    my ($self, $name, $value, $index) = @_;
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    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
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    my $exptidx = $self->idx();
734

735 736 737 738 739 740 741
    if (defined($value)) {
	$value = DBQuoteSpecial($value);
    }
    else {
	$value = "''";
    }

742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759
    #
    # Look to see if the variable exists, since a replace will actually
    # create a new row cause there is an auto_increment in the table that
    # is used to maintain order of the variables as specified in the NS file.
    #
    my $query_result =
	DBQueryWarn("select idx from virt_user_environment ".
		    "where name='$name' and pid='$pid' and eid='$eid'");

    return -1
	if (!$query_result);

    if ($query_result->numrows) {
	my $idx = (defined($index) ? $index :
		   ($query_result->fetchrow_array())[0]);
	    
	DBQueryWarn("replace into virt_user_environment set ".
		    "   name='$name', value=$value, idx=$idx, ".
760
		    "   exptidx='$exptidx', pid='$pid', eid='$eid'")
761 762 763 764 765
	    or return -1;
    }
    else {
	DBQueryWarn("insert into virt_user_environment set ".
		    "   name='$name', value=$value, idx=NULL, ".
766
		    "   exptidx='$exptidx', pid='$pid', eid='$eid'")
767 768
	    or return -1;
    }
769
    
770 771 772
    return 0;
}

773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810
#
# Write the environment strings into a little script in the user directory.
#
sub WriteEnvVariables($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    my $query_result =
	DBQueryWarn("select name,value from virt_user_environment ".
		    "where  pid='$pid' and eid='$eid' order by idx");
    return -1
	if (!defined($query_result));

    my $userdir = $self->UserDir();
    my $envfile = "$userdir/tbdata/environment";

    if (!open(FP, "> $envfile")) {
	print "Could not open $envfile for writing: $!\n";
	return -1;
    }
    while (my ($name,$value) = $query_result->fetchrow_array()) {
	print FP "${name}=\"$value\"\n";
    }
    if (! close(FP)) {
	print "Could not close $envfile: $!\n";
	return -1;
    }
    
    return 0;
}

811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849
#
# Experiment locking and state changes.
#
sub Unlock($;$)
{
    my ($self, $newstate) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    my $sclause = (defined($newstate) ? ",state='$newstate' " : "");

    my $query_result =
	DBQueryWarn("update experiments set expt_locked=NULL $sclause ".
		    "where eid='$eid' and pid='$pid'");

    if (! $query_result ||
	$query_result->numrows == 0) {
	return -1;
    }
    
    if (defined($newstate)) {
	$self->{'EXPT'}->{'state'} = $newstate;

	if ($EVENTSYS) {
	    EventSendWarn(objtype   => libdb::TBDB_TBEVENT_EXPTSTATE(),
			  objname   => "$pid/$eid",
			  eventtype => $newstate,
			  expt      => "$pid/$eid",
			  host      => $BOSSNODE);
	}
    }
    
    return 0;
}

850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884
sub Lock(;$)
{
    my ($self, $newstate) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    my $sclause = (defined($newstate) ? ",state='$newstate' " : "");

    my $query_result =
	DBQueryWarn("update experiments set expt_locked=now() $sclause ".
		    "where eid='$eid' and pid='$pid'");

    if (! $query_result ||
	$query_result->numrows == 0) {
	return -1;
    }
    
    if (defined($newstate)) {
	$self->{'EXPT'}->{'state'} = $newstate;

	if ($EVENTSYS) {
	    EventSendWarn(objtype   => libdb::TBDB_TBEVENT_EXPTSTATE(),
			  objname   => "$pid/$eid",
			  eventtype => $newstate,
			  expt      => "$pid/$eid",
			  host      => $BOSSNODE);
	}
    }
    return 0;
}

885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
sub SetState($$)
{
    my ($self, $newstate) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    my $query_result =
	DBQueryWarn("update experiments set state='$newstate' ".
		    "where eid='$eid' and pid='$pid'");

    if (! $query_result ||
	$query_result->numrows == 0) {
	return -1;
    }
    
    if (defined($newstate)) {
	$self->{'EXPT'}->{'state'} = $newstate;

	if ($EVENTSYS) {
	    EventSendWarn(objtype   => libdb::TBDB_TBEVENT_EXPTSTATE(),
			  objname   => "$pid/$eid",
			  eventtype => $newstate,
			  expt      => "$pid/$eid",
			  host      => $BOSSNODE);
	}
    }
    
    return 0;
}

#
# Logfiles. This all needs to change.
#
# Open a new logfile and return its name.
#
sub CreateLogFile($$$)
{
    my ($self, $prefix, $pref) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    # Need to deal with errors.
    $$pref = TBExptCreateLogFile($pid, $eid, $prefix);
    return 0;
}

941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973
#
# Set the experiments nsfiles table entry.
#
sub SetNSFile($$)
{
    my ($self, $nsfile) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $nsfile_string = `cat $nsfile`;
    return 0
	if (!$nsfile_string);

    my $pid = $self->pid();
    my $eid = $self->eid();
    my $idx = $self->idx();
    $nsfile_string = DBQuoteSpecial($nsfile_string);
    
    if (length($nsfile_string) >= DBLIMIT_NSFILESIZE()) {
	print "NS file is way too big!\n";
	return -1;
    }

    return -1    
	if (!DBQueryWarn("delete from nsfiles where exptidx='$idx'") ||
	    !DBQueryWarn("insert into nsfiles (exptidx, pid, eid, nsfile) ".
			 "values ($idx, '$pid', '$eid', $nsfile_string)"));

    return 0;
}

974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
#
# Set the experiment to use the logfile. It becomes the "current" spew.
#
sub SetLogFile($$)
{
    my ($self, $logname) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    TBExptSetLogFile($pid, $eid, $logname);    
    return 0;
}

#
# Mark the log as open so that the spew keeps looking for more output.
# 
sub OpenLogFile($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    TBExptOpenLogFile($pid, $eid);    
    return 0;
}

#
# And close it ...
#
sub CloseLogFile($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    TBExptCloseLogFile($pid, $eid);    
    return 0;
}

1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
#
# And clear it ...
#
sub ClearLogFile($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    TBExptClearLogFile($pid, $eid);    
    return 0;
}

1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
#
# Run scripts over an experiment.
#
sub PreRun($;$$)
{
    my ($self, $nsfile, $options) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
1059
    my $idx = $self->idx();
1060 1061 1062 1063 1064 1065

    $nsfile = ""
	if (!defined($nsfile));
    $options = ""
	if (!defined($options));

1066 1067
    print "Running 'tbprerun $options -e $idx $nsfile'\n";
    mysystem("$TBPRERUN $options -e $idx $nsfile");
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    return -1
	if ($?);
    return 0;
}

sub Swap($;$$)
{
    my ($self, $direction, $options) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    $options = ""
	if (!defined($options));

    print "Running 'tbswap $direction $options $pid $eid'\n";
    mysystem("$TBSWAP $direction $options $pid $eid");
    return -1
	if ($?);
    return 0;
}

sub End($;$)
{
    my ($self, $options) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
1104
    my $idx = $self->idx();
1105 1106 1107 1108

    $options = ""
	if (!defined($options));

1109 1110
    print "Running 'tbend $options -e $idx'\n";
    mysystem("$TBEND $options -e $idx");
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129
    return -1
	if ($?);
    return 0;
}

sub Report($;$$)
{
    my ($self, $filename, $options) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    $options = ""
	if (!defined($options));

1130
    print "Running 'tbreport $options $pid $eid'\n";
1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167
    mysystem("$TBREPORT $options $pid $eid 2>&1 > $filename");
    return -1
	if ($?);
    return 0;
}

#
# Return list of local nodes.
# 
sub LocalNodeList($$)
{
    my ($self, $lref) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    @$lref = ExpNodes($pid, $eid, 1, 0);
    return 0;
}

#
# Copy log files to long term storage.
#
sub SaveLogFiles($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
1168 1169 1170 1171 1172
    my $workdir = $self->WorkDir();
    my $logdir  = TBExptLogDir($pid, $eid);

    # What the hell is this file! Very annoying.
    if (-e "$workdir/.rnd") {
1173
	mysystem("/bin/rm -f $workdir/.rnd");
1174
    }
1175
    mysystem("/bin/cp -Rpf $workdir/ $logdir");
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191
    return 0;
}

#
# Remove old logfiles from the wordir.
#
sub CleanLogFiles($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $workdir = $self->WorkDir();
    
1192 1193 1194 1195 1196 1197 1198
    opendir(DIR, $workdir) or
	return -1;
    my @files   = readdir(DIR);
    my @delete  = ();
    closedir(DIR);

    foreach my $file (@files) {
1199 1200 1201 1202
	# Just in case ...
	next
	    if ($file =~ /^.*\.ns$/);
	
1203 1204 1205 1206 1207
	push(@delete, "${workdir}/$1")
	    if ($file =~ /^(.*\.(log|ptop|top|assign))$/);

	push(@delete, "${workdir}/$1")
	    if ($file =~ /^((swap|start|cancel|newrun).*\..*)$/);
1208
    }
1209
    mysystem("/bin/rm -f @delete") == 0
1210
	or return -1;
1211 1212 1213 1214 1215 1216 1217

    return 0;
}

#
# Copy log files to user visible space. Maybe not such a good idea anymore?
#
1218
sub CopyLogFiles($;@)
1219
{
1220
    my ($self, @files) = @_;
1221 1222 1223 1224 1225 1226 1227 1228 1229 1230

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    my $workdir = $self->WorkDir();
    my $userdir = $self->UserDir();

1231 1232 1233 1234 1235 1236
    # Specific files, then return.
    if (@files) {
	mysystem("/bin/cp -fp @files $userdir/tbdata");
	return 0;
    }

1237 1238
    opendir(DIR, $workdir) or
	return -1;
1239
    @files  = readdir(DIR);
1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271
    closedir(DIR);
    my @copy   = ();

    foreach my $file (@files) {
	push(@copy, "${workdir}/$1")
	    if ($file =~ /^(.*\.(log|report|ns|png))$/);
    }

    mysystem("/bin/cp -fp @copy $userdir/tbdata");
    return 0;
}

#
# Backup the user directory for debugging. 
#
sub BackupUserData($)
{
    my ($self) = @_;
    
    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $userdir = $self->UserDir();
    my $path    = dirname($userdir);
    my $dir     = basename($userdir);
    my $backup  = "${path}/.${dir}-failed";

    if (-e $backup) {
	mysystem("/bin/rm -rf $backup");
    }
    mysystem("/bin/mv $userdir $backup");
1272 1273 1274 1275 1276 1277 1278 1279
    return 0;
}

#
# Swapinfo accounting stuff.
#
sub SetSwapInfo($$)
{
1280
    my ($self, $user) = @_;
1281 1282 1283 1284 1285 1286 1287 1288 1289

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    
    TBSetExpSwapTime($pid, $eid);
1290
    $self->SetSwapper($user);
1291 1292 1293
    return $self->Refresh();
}

1294
#
1295
# Just the swap uid.
1296 1297 1298
#
sub SetSwapper($$)
{
1299
    my ($self, $user) = @_;
1300 1301 1302 1303 1304

    # Must be a real reference. 
    return -1
	if (! ref($self));

1305 1306 1307 1308 1309 1310 1311 1312 1313
    my $pid  = $self->pid();
    my $eid  = $self->eid();
    my $uid  = $user->uid();
    my $dbid = $user->dbid();

    DBQueryWarn("update experiments set ".
		"   expt_swap_uid='$uid', swapper_idx='$dbid' ".
		"where pid='$pid' and eid='$eid'");

1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
    return $self->Refresh();
}

#
# Just the swap time.
#
sub SetSwapTime($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    
    TBSetExpSwapTime($pid, $eid);
    return 0;
}

1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
#
# Set the cancel flag.
#
sub SetCancelFlag($$)
{
    my ($self, $flag) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    
    TBSetCancelFlag($pid, $eid, $flag);
    return $self->Refresh();
}

1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473
#
# Clear the panic bit.
#
sub ClearPanicBit($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
    
    TBExptClearPanicBit($pid, $eid);
    return 0;
}

#
# Is experiment firewalled?
#
sub IsFirewalled($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return TBExptFirewall($pid, $eid);
}

#
# Update the idleswap timeout. Why?
#
sub UpdateIdleSwapTime($$)
{
    my ($self, $newtimeout) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    DBQueryWarn("update experiments set idleswap_timeout='$newtimeout' ".
		"where eid='$eid' and pid='$pid'")
	or return -1;

    return 0;
}

#
# Experiment tables.
#
sub BackupVirtualState($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return -1
	if (TBExptBackupVirtualState($pid, $eid));

    return 0;
}
sub RemoveVirtualState($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return -1
	if (TBExptRemoveVirtualState($pid, $eid));

    return 0;
}
sub RestoreVirtualState($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return -1
	if (TBExptRestoreVirtualState($pid, $eid));

    return 0;
}
sub ClearBackupState($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    TBExptClearBackupState($pid, $eid);
    return 0;
}
1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511
sub RemovePhysicalState($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return -1
	if (TBExptRemovePhysicalState($pid, $eid));

    return 0;
}

#
# The port registration table is special, and needs to be cleared only
# at certain times. See tbswap.
#
sub ClearPortRegistration($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    return -1
	if (! DBQueryWarn("delete from port_registration ".
			  "where pid='$pid' and eid='$eid'"));

    return 0;
}
1512

1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527
#
# Setup up phony program agent event agents and groups. This is so we
# can talk to the program agent itself, not to the programs the agent
# is responsible for. 
#
sub SetupProgramAgents($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();
1528
    my $idx = $self->idx();
1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540

    my $query_result =
	DBQueryWarn("select distinct vnode from virt_programs ".
		    "where pid='$pid' and eid='$eid'");
    
    return -1
	if (!defined($query_result));
    return 0
	if (! $query_result->numrows);

    while (my ($vnode) = $query_result->fetchrow_array()) {
	DBQueryWarn("replace into virt_agents ".
1541 1542 1543
		     " (exptidx, pid, eid, vname, vnode, objecttype) ".
		     " select '$idx', '$pid', '$eid', ".
		     "   '__${vnode}_program-agent', '$vnode', ".
1544 1545 1546 1547 1548
		     "   idx from event_objecttypes where ".
		     "   event_objecttypes.type='PROGRAM'")
	    or return -1;

	DBQueryWarn("replace into event_groups ".
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		    " (exptidx, pid, eid, idx, group_name, agent_name) ".
		    " values ('$idx', '$pid', '$eid', NULL, ".
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		    "         '__all_program-agents', ".
		    "         '__${vnode}_program-agent')")
	    or return -1;
    }
    return 0;
}

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#
# Write the virt program data for the program agent that will run on ops.
# Ops does not speak to tmcd for experiments, so need to get this info
# over another way. 
#
sub WriteProgramAgents($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $pid = $self->pid();
    my $eid = $self->eid();

    my $query_result =
	DBQueryWarn("select vname,command,dir,timeout,expected_exit_code ".
		    "   from virt_programs ".
		    "where vnode='ops' and pid='$pid' and eid='$eid'");

    return -1
	if (!defined($query_result));
    return 0
	if (! $query_result->numrows);

    my $userdir  = $self->UserDir();
    my $progfile = "$userdir/tbdata/program_agents";

    if (!open(FP, "> $progfile")) {
	print "Could not open $progfile for writing: $!\n";
	return -1;
    }
    while (my ($name,$command,$dir,$timeout,$expected_exit_code) =
	   $query_result->fetchrow_array()) {
	print FP "AGENT=$name";
	print FP " DIR=$dir"
	    if (defined($dir) && $dir ne "");
	print FP " TIMEOUT=$timeout"
	    if (defined($timeout) && $timeout ne "");
	print FP " EXPECTED_EXIT_CODE=$expected_exit_code"
	    if (defined($expected_exit_code) && $expected_exit_code ne "");
	print FP " COMMAND='$command'\n";
    }
    if (! close(FP)) {
	print "Could not close $progfile: $!\n";
	return -1;
    }
    
    return 0;
}

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#
# Return node status list for all nodes in the experiment. Status is defined
# as either up or down, which for now is going to be returned as 0,1.
#
sub NodeStatusList($$)
{
    my ($self, $prval) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my %results = ();
    my $pid = $self->pid();
    my $eid = $self->eid();

    my $query_result =
1627
	DBQueryWarn("select r.node_id,n.status from reserved as r ".
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		    "left join node_status as n on n.node_id=r.node_id ".
		    "where pid='$pid' and eid='$eid'");

    return -1
	if (!defined($query_result));
    
    while (my ($node_id,$status) = $query_result->fetchrow_array()) {
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	# Skip nodes with no status info reported. 
	next
	    if (!defined($status) || $status eq "");
	
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	$results{$node_id} = (($status eq "up") ? 1 : 0);
    }
    %$prval = %results;
    return 0;
}

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#
# Setup the environment variables for a swapin.
#
sub InitializeEnvVariables($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    $self->Refresh() == 0
	or return -1;

    if ($self->dpdb() && $self->dpdbname() && $self->dpdbname() ne "") {
	my $dpdbname     = $self->dpdbname();
	my $dpdbpassword = $self->dpdbpassword();
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	my $dpdbuser     = "E" . $self->idx();
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	$self->AddEnvVariable("DP_DBNAME", $dpdbname) == 0
	    or return -1;
	
	$self->AddEnvVariable("DP_HOST", $CONTROL) == 0
	    or return -1;

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	$self->AddEnvVariable("DP_USER", $dpdbuser) == 0
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	    or return -1;

	$self->AddEnvVariable("DP_PASSWORD", $dpdbpassword) == 0
	    or return -1;
    }
    
    return 0;
}

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#
# Record a stamp event.
#
sub Stamp($$;$$$)
{
    my ($self, $type, $modifier, $aux_type, $aux_data) = @_;

    return 0
	if (! $STAMPS);

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $exptidx  = $self->idx();
    my $rsrcidx  = $self->rsrcidx();
    $modifier    = (defined($modifier) ? "'$modifier'" : "NULL");

    DBQueryWarn("insert into experiment_stamps set ".
		"  exptidx='$exptidx', id=NULL, rsrcidx='$rsrcidx', ".
		"  stamp_type='$type', modifier=$modifier, ".
		"  stamp=UNIX_TIMESTAMP(now()) ".
		(defined($aux_type) ?
		 ",aux_type='$aux_type',aux_data='$aux_data'" : ""))
	or return -1;

    return 0;
}

#
# DU experiment directory
#
sub DU($$)
{
    my ($self, $prval) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    $$prval = 0;
    my $userdir = $self->UserDir();
    
    #
    # Start a subprocess that does the du, and then read it back.
    #
    if (!open(DU, "$DU -s -k $userdir |")) {
	print STDERR "DU: Could not start du!\n";
	return -1;
    }
    my $line;
    
    while (<DU>) {
	chomp($_);
	$line = $_;
    }
    return -1
	if (! close(DU));

    if ($line =~ /^(\d+)\s+/) {
	$$prval = $1;
	return 0;
    }
    return -1;
}


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# _Always_ make sure that this 1 is at the end of the file...
1;