version 1.93, 2005/06/29 11:57:17
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version 1.96, 2005/09/23 21:39:09
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Line 41 use Safe;
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Line 41 use Safe;
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use Safe::Hole; |
use Safe::Hole; |
use Opcode; |
use Opcode; |
use Apache::lonenc; |
use Apache::lonenc; |
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use Fcntl qw(:flock); |
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# ---------------------------------------------------- Globals for this package |
# ---------------------------------------------------- Globals for this package |
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Line 128 sub loadmap {
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Line 129 sub loadmap {
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# Successfully got file, parse it |
# Successfully got file, parse it |
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my $parser = HTML::TokeParser->new(\$instr); |
my $parser = HTML::TokeParser->new(\$instr); |
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$parser->attr_encoded(1); |
my $token; |
my $token; |
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my $linkpc=0; |
my $linkpc=0; |
Line 548 sub readmap {
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Line 550 sub readmap {
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return 'No course data available.'; |
return 'No course data available.'; |
} |
} |
@cond=('true:normal'); |
@cond=('true:normal'); |
#unlink($fn.'.db'); |
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#unlink($fn.'_symb.db'); |
open(LOCKFILE,">$fn.db.lock"); |
unlink($fn.'.state'); |
my $lock=0; |
unlink($fn.'parms.db'); |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB)) { |
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$lock=1; |
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unlink($fn.'.db'); |
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unlink($fn.'_symb.db'); |
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unlink($fn.'.state'); |
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unlink($fn.'parms.db'); |
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} |
undef %randompick; |
undef %randompick; |
undef %hiddenurl; |
undef %hiddenurl; |
undef %encurl; |
undef %encurl; |
$retfurl=''; |
$retfurl=''; |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
if ($lock && (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT(),0640)) && |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
(tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_WRCREAT(),0640))) { |
%hash=(); |
%hash=(); |
%parmhash=(); |
%parmhash=(); |
Line 590 sub readmap {
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Line 598 sub readmap {
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} |
} |
# ----------------------------------------------- Close hashes to finally store |
# ----------------------------------------------- Close hashes to finally store |
# --------------------------------- Routine must pass this point, no early outs |
# --------------------------------- Routine must pass this point, no early outs |
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$hash{'first_url'}=$retfurl; |
unless ((untie(%hash)) && (untie(%parmhash))) { |
unless ((untie(%hash)) && (untie(%parmhash))) { |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not untie coursemap $fn for $uri.</font>"); |
"Could not untie coursemap $fn for $uri.</font>"); |
Line 603 sub readmap {
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Line 612 sub readmap {
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&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
"Could not write statemap $fn for $uri.</font>"); |
"Could not write statemap $fn for $uri.</font>"); |
} |
} |
} |
} |
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flock(LOCKFILE,LOCK_UN); |
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close(LOCKFILE); |
} else { |
} else { |
# if we are here it is likely because we are already trying to |
# if we are here it is likely because we are already trying to |
# initialize the course in another child, busy wait trying to |
# initialize the course in another child, busy wait trying to |
# tie the hashes for the next 90 seconds, if we succeed forward |
# tie the hashes for the next 90 seconds, if we succeed forward |
# them on to navmaps, if we fail, throw up the Could not init |
# them on to navmaps, if we fail, throw up the Could not init |
# course screen |
# course screen |
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if ($lock) { |
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# Got the lock but not the DB files |
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flock(LOCKFILE,LOCK_UN); |
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} |
untie(%hash); |
untie(%hash); |
untie(%parmhash); |
untie(%parmhash); |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
Line 618 sub readmap {
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Line 633 sub readmap {
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while($i<90) { |
while($i<90) { |
$i++; |
$i++; |
sleep(1); |
sleep(1); |
if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
if (flock(LOCKFILE,LOCK_EX|LOCK_NB) && |
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(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640))) { |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
if (tie(%parmhash,'GDBM_File',$fn.'_parms.db',&GDBM_READER(),0640)) { |
$retfurl='/adm/navmaps'; |
$retfurl='/adm/navmaps'; |
&Apache::lonnet::appenv("request.course.id" => $short, |
&Apache::lonnet::appenv("request.course.id" => $short, |
Line 632 sub readmap {
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Line 648 sub readmap {
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untie(%hash); |
untie(%hash); |
untie(%parmhash); |
untie(%parmhash); |
} |
} |
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flock(LOCKFILE,LOCK_UN); |
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close(LOCKFILE); |
} |
} |
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
&Apache::lonmsg::author_res_msg($env{'request.course.uri'},$errtext); |
# ------------------------------------------------- Check for critical messages |
# ------------------------------------------------- Check for critical messages |