| … | |
… | |
| 18 | use utf8; |
18 | use utf8; |
| 19 | |
19 | |
| 20 | use File::Path (); |
20 | use File::Path (); |
| 21 | use Carp (); |
21 | use Carp (); |
| 22 | use Storable (); |
22 | use Storable (); |
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|
23 | use AnyEvent::Util (); |
| 23 | use Config; |
24 | use Config; |
| 24 | use BDB; |
25 | use BDB; |
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|
26 | use Fcntl (); |
| 25 | |
27 | |
| 26 | use DC; |
28 | use DC; |
| 27 | |
29 | |
| 28 | our $ODBDIR = "cfplus-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
30 | our $ODBDIR = "cfplus-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
| 29 | our $DBDIR = "client-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
31 | our $DBDIR = "client-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
| … | |
… | |
| 46 | |
48 | |
| 47 | BDB::max_poll_time 0.03; |
49 | BDB::max_poll_time 0.03; |
| 48 | BDB::max_parallel 1; |
50 | BDB::max_parallel 1; |
| 49 | |
51 | |
| 50 | our $DB_ENV; |
52 | our $DB_ENV; |
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|
53 | our $DB_ENV_FH; |
| 51 | our $DB_STATE; |
54 | our $DB_STATE; |
| 52 | our %DB_TABLE; |
55 | our %DB_TABLE; |
| 53 | our $TILE_SEQ; |
56 | our $TILE_SEQ; |
| 54 | |
57 | |
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|
58 | sub all_databases { |
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59 | opendir my $fh, $DB_HOME |
|
|
60 | or return; |
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61 | |
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62 | grep !/^(?:\.|log\.|_)/, readdir $fh |
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63 | } |
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64 | |
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65 | sub try_verify_env($) { |
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66 | my ($env) = @_; |
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67 | |
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68 | open my $lock, "+>$DB_HOME/__lock" |
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69 | or die "__lock: $!"; |
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70 | |
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71 | flock $lock, &Fcntl::LOCK_EX |
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72 | or die "flock: $!"; |
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73 | |
|
|
74 | # we look at the __db.register env file that has been created by now |
|
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75 | # and check for the number of registered processes - if there is |
|
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76 | # only one, we verify all databases, otherwise we skip this |
|
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77 | # we MUST NOT close the filehandle as longa swe keep the env open, as |
|
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78 | # this destroys the record locks on it. |
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79 | open $DB_ENV_FH, "<$DB_HOME/__db.register" |
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80 | or die "__db.register: $!"; |
|
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81 | |
|
|
82 | # __db.register contains one record per process, with X signifying |
|
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83 | # empty records (of course, this is completely private to bdb...) |
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84 | my $count = grep /^[^X]/, <$DB_ENV_FH>; |
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85 | |
|
|
86 | if ($count == 1) { |
|
|
87 | # if any databases are corrupted, we simply delete all of them |
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88 | |
|
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89 | for (all_databases) { |
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90 | my $dbh = db_create $env |
|
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91 | or last; |
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92 | |
|
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93 | # a failed verify will panic the environment, which is fine with us |
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94 | db_verify $dbh, "$DB_HOME/$_"; |
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95 | |
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96 | return if $!; # nuke database and recreate if verification failure |
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97 | } |
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98 | |
|
|
99 | } |
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100 | |
|
|
101 | # close probably cleans those up, but we also want to run on windows, |
|
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102 | # so better be safe. |
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103 | flock $lock, &Fcntl::LOCK_UN |
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104 | or die "funlock: $!"; |
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105 | |
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106 | 1 |
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107 | } |
|
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108 | |
| 55 | sub try_open_db { |
109 | sub try_open_db { |
| 56 | File::Path::mkpath [$DB_HOME]; |
110 | File::Path::mkpath [$DB_HOME]; |
|
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111 | |
|
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112 | undef $DB_ENV; |
|
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113 | undef $DB_ENV_FH; |
| 57 | |
114 | |
| 58 | my $env = db_env_create; |
115 | my $env = db_env_create; |
| 59 | |
116 | |
| 60 | $env->set_errfile (\*STDERR); |
117 | $env->set_errfile (\*STDERR); |
| 61 | $env->set_msgfile (\*STDERR); |
118 | $env->set_msgfile (\*STDERR); |
| … | |
… | |
| 73 | db_env_open $env, $DB_HOME, |
130 | db_env_open $env, $DB_HOME, |
| 74 | BDB::CREATE | BDB::REGISTER | BDB::RECOVER | BDB::INIT_MPOOL | BDB::INIT_LOCK | BDB::INIT_TXN, |
131 | BDB::CREATE | BDB::REGISTER | BDB::RECOVER | BDB::INIT_MPOOL | BDB::INIT_LOCK | BDB::INIT_TXN, |
| 75 | 0666; |
132 | 0666; |
| 76 | |
133 | |
| 77 | $! and die "cannot open database environment $DB_HOME: " . BDB::strerror; |
134 | $! and die "cannot open database environment $DB_HOME: " . BDB::strerror; |
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135 | |
|
|
136 | # now we go through the registered processes, if there is only one, we verify all files |
|
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137 | # to make sure windows didn'T corrupt them (as windows does....) |
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138 | try_verify_env $env |
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139 | or die "database environment failed verification"; |
| 78 | |
140 | |
| 79 | $DB_ENV = $env; |
141 | $DB_ENV = $env; |
| 80 | |
142 | |
| 81 | 1 |
143 | 1 |
| 82 | } |
144 | } |
| … | |
… | |
| 355 | |
417 | |
| 356 | print { $LOG_FH{$path} } "$ts $line\n" |
418 | print { $LOG_FH{$path} } "$ts $line\n" |
| 357 | } |
419 | } |
| 358 | |
420 | |
| 359 | sub run { |
421 | sub run { |
| 360 | ($FH, my $fh) = DC::socketpipe; |
422 | ($FH, my $fh) = AnyEvent::Util::portable_socketpair |
|
|
423 | or die "unable to create database socketpair: $!"; |
| 361 | |
424 | |
| 362 | my $oldfh = select $FH; $| = 1; select $oldfh; |
425 | my $oldfh = select $FH; $| = 1; select $oldfh; |
| 363 | my $oldfh = select $fh; $| = 1; select $oldfh; |
426 | my $oldfh = select $fh; $| = 1; select $oldfh; |
| 364 | |
427 | |
| 365 | my $pid = fork; |
428 | my $pid = fork; |
| … | |
… | |
| 415 | } |
478 | } |
| 416 | |
479 | |
| 417 | package DC::DB; |
480 | package DC::DB; |
| 418 | |
481 | |
| 419 | sub nuke_db { |
482 | sub nuke_db { |
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|
483 | undef $DB_ENV; |
|
|
484 | undef $DB_ENV_FH; |
|
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485 | |
| 420 | File::Path::mkpath [$DB_HOME]; |
486 | File::Path::mkpath [$DB_HOME]; |
| 421 | eval { File::Path::rmtree $DB_HOME }; |
487 | eval { File::Path::rmtree $DB_HOME }; |
| 422 | } |
488 | } |
| 423 | |
489 | |
| 424 | sub open_db { |
490 | sub open_db { |
