Commit | Line | Data |
27a701f9 |
1 | package #hide from pause |
2 | DBICTest::BaseSchema; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
bedbc811 |
7 | use base qw(DBICTest::Base DBIx::Class::Schema); |
27a701f9 |
8 | |
e952df76 |
9 | use Fcntl qw(:DEFAULT :seek :flock); |
10 | use Time::HiRes 'sleep'; |
11 | use DBICTest::Util::LeakTracer qw(populate_weakregistry assert_empty_weakregistry); |
12 | use DBICTest::Util 'local_umask'; |
13 | use namespace::clean; |
14 | |
15 | our $locker; |
16 | END { |
17 | # we need the $locker to be referenced here for delayed destruction |
18 | if ($locker->{lock_name} and ($ENV{DBICTEST_LOCK_HOLDER}||0) == $$) { |
19 | #warn "$$ $0 $locker->{type} LOCK RELEASED"; |
20 | } |
21 | } |
22 | |
23 | my $weak_registry = {}; |
24 | |
25 | sub connection { |
26 | my $self = shift->next::method(@_); |
27 | |
28 | # MASSIVE FIXME |
29 | # we can't really lock based on DSN, as we do not yet have a way to tell that e.g. |
30 | # DBICTEST_MSSQL_DSN=dbi:Sybase:server=192.168.0.11:1433;database=dbtst |
31 | # and |
32 | # DBICTEST_MSSQL_ODBC_DSN=dbi:ODBC:server=192.168.0.11;port=1433;database=dbtst;driver=FreeTDS;tds_version=8.0 |
33 | # are the same server |
34 | # hence we lock everything based on sqlt_type or just globally if not available |
35 | # just pretend we are python you know? :) |
36 | |
37 | |
38 | # when we get a proper DSN resolution sanitize to produce a portable lockfile name |
39 | # this may look weird and unnecessary, but consider running tests from |
40 | # windows over a samba share >.> |
41 | #utf8::encode($dsn); |
42 | #$dsn =~ s/([^A-Za-z0-9_\-\.\=])/ sprintf '~%02X', ord($1) /ge; |
43 | #$dsn =~ s/^dbi/dbi/i; |
44 | |
45 | # provide locking for physical (non-memory) DSNs, so that tests can |
46 | # safely run in parallel. While the harness (make -jN test) does set |
47 | # an envvar, we can not detect when a user invokes prove -jN. Hence |
48 | # perform the locking at all times, it shouldn't hurt. |
49 | # the lock fh *should* inherit across forks/subprocesses |
50 | # |
51 | # File locking is hard. Really hard. By far the best lock implementation |
52 | # I've seen is part of the guts of File::Temp. However it is sadly not |
53 | # reusable. Since I am not aware of folks doing NFS parallel testing, |
54 | # nor are we known to work on VMS, I am just going to punt this and |
55 | # use the portable-ish flock() provided by perl itself. If this does |
56 | # not work for you - patches more than welcome. |
57 | if ( |
58 | ! $DBICTest::global_exclusive_lock |
59 | and |
60 | ( ! $ENV{DBICTEST_LOCK_HOLDER} or $ENV{DBICTEST_LOCK_HOLDER} == $$ ) |
61 | and |
62 | ref($_[0]) ne 'CODE' |
63 | and |
64 | ($_[0]||'') !~ /^ (?i:dbi) \: SQLite \: (?: dbname\= )? (?: \:memory\: | t [\/\\] var [\/\\] DBIxClass\-) /x |
65 | ) { |
66 | |
67 | my $locktype = do { |
68 | # guard against infinite recursion |
69 | local $ENV{DBICTEST_LOCK_HOLDER} = -1; |
70 | |
71 | # we need to connect a forced fresh clone so that we do not upset any state |
72 | # of the main $schema (some tests examine it quite closely) |
73 | local $SIG{__WARN__} = sub {}; |
74 | local $@; |
75 | my $storage = eval { |
76 | my $st = ref($self)->connect(@{$self->storage->connect_info})->storage; |
77 | $st->ensure_connected; # do connect here, to catch a possible throw |
78 | $st; |
79 | }; |
80 | $storage |
81 | ? do { |
82 | my $t = $storage->sqlt_type || 'generic'; |
83 | eval { $storage->disconnect }; |
84 | $t; |
85 | } |
86 | : undef |
87 | ; |
88 | }; |
89 | |
90 | # Never hold more than one lock. This solves the "lock in order" issues |
91 | # unrelated tests may have |
92 | # Also if there is no connection - there is no lock to be had |
93 | if ($locktype and (!$locker or $locker->{type} ne $locktype)) { |
94 | |
95 | # this will release whatever lock we may currently be holding |
96 | # which is fine since the type does not match as checked above |
97 | undef $locker; |
98 | |
99 | my $lockpath = DBICTest::RunMode->tmpdir->file("_dbictest_$locktype.lock"); |
100 | |
101 | #warn "$$ $0 $locktype GRABBING LOCK"; |
102 | my $lock_fh; |
103 | { |
104 | my $u = local_umask(0); # so that the file opens as 666, and any user can lock |
105 | sysopen ($lock_fh, $lockpath, O_RDWR|O_CREAT) or die "Unable to open $lockpath: $!"; |
106 | } |
107 | flock ($lock_fh, LOCK_EX) or die "Unable to lock $lockpath: $!"; |
108 | #warn "$$ $0 $locktype LOCK GRABBED"; |
109 | |
110 | # see if anyone was holding a lock before us, and wait up to 5 seconds for them to terminate |
111 | # if we do not do this we may end up trampling over some long-running END or somesuch |
112 | seek ($lock_fh, 0, SEEK_SET) or die "seek failed $!"; |
113 | my $old_pid; |
114 | if ( |
115 | read ($lock_fh, $old_pid, 100) |
116 | and |
117 | ($old_pid) = $old_pid =~ /^(\d+)$/ |
118 | ) { |
119 | for (1..50) { |
120 | kill (0, $old_pid) or last; |
121 | sleep 0.1; |
122 | } |
123 | } |
124 | #warn "$$ $0 $locktype POST GRAB WAIT"; |
125 | |
126 | truncate $lock_fh, 0; |
127 | seek ($lock_fh, 0, SEEK_SET) or die "seek failed $!"; |
128 | $lock_fh->autoflush(1); |
129 | print $lock_fh $$; |
130 | |
131 | $ENV{DBICTEST_LOCK_HOLDER} ||= $$; |
132 | |
133 | $locker = { |
134 | type => $locktype, |
135 | fh => $lock_fh, |
136 | lock_name => "$lockpath", |
137 | }; |
138 | } |
139 | } |
140 | |
141 | if ($INC{'Test/Builder.pm'}) { |
142 | populate_weakregistry ( $weak_registry, $self->storage ); |
143 | |
144 | my $cur_connect_call = $self->storage->on_connect_call; |
145 | |
146 | $self->storage->on_connect_call([ |
147 | (ref $cur_connect_call eq 'ARRAY' |
148 | ? @$cur_connect_call |
149 | : ($cur_connect_call || ()) |
150 | ), |
151 | [sub { |
152 | populate_weakregistry( $weak_registry, shift->_dbh ) |
153 | }], |
154 | ]); |
155 | } |
156 | |
157 | return $self; |
158 | } |
159 | |
160 | sub clone { |
161 | my $self = shift->next::method(@_); |
162 | populate_weakregistry ( $weak_registry, $self ) |
163 | if $INC{'Test/Builder.pm'}; |
164 | $self; |
165 | } |
166 | |
167 | END { |
168 | assert_empty_weakregistry($weak_registry, 'quiet'); |
169 | } |
27a701f9 |
170 | |
171 | 1; |