Mercurial > kallithea

annotate rhodecode/lib/pidlock.py @ 1540:191f3f08236d beta

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fixes #258 RhodeCode 1.2 assumes egg folder is writable
author Marcin Kuzminski <marcin@python-works.com>
date Tue, 11 Oct 2011 01:08:23 +0200
parents adcfbe0fb453
children d6cb805c92fd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
1 import os
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
2 import sys
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
3 import time
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
4 import errno
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
5
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
6 from warnings import warn
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
7 from multiprocessing.util import Finalize
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
8
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
9 from rhodecode import __platform__, PLATFORM_WIN
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
10
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
11 if __platform__ in PLATFORM_WIN:
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
12 import ctypes
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
13
1404
adcfbe0fb453 fixes #218 os.kill patch for windows was missing sig param
Marcin Kuzminski <marcin@python-works.com>
parents: 1307
diff changeset
14 def kill(pid, sig):
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
15 """kill function for Win32"""
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
16 kernel32 = ctypes.windll.kernel32
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
17 handle = kernel32.OpenProcess(1, 0, pid)
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
18 return (0 != kernel32.TerminateProcess(handle, 0))
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
19
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
20 else:
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
21 kill = os.kill
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
22
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
23
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
24 class LockHeld(Exception):
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
25 pass
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
26
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
27
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
28 class DaemonLock(object):
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
29 """daemon locking
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
30 USAGE:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
31 try:
1540
191f3f08236d fixes #258 RhodeCode 1.2 assumes egg folder is writable
Marcin Kuzminski <marcin@python-works.com>
parents: 1404
diff changeset
32 l = DaemonLock(file_='/path/tolockfile',desc='test lock')
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
33 main()
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
34 l.release()
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
35 except LockHeld:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
36 sys.exit(1)
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
37 """
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
38
1540
191f3f08236d fixes #258 RhodeCode 1.2 assumes egg folder is writable
Marcin Kuzminski <marcin@python-works.com>
parents: 1404
diff changeset
39 def __init__(self, file_=None, callbackfn=None,
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
40 desc='daemon lock', debug=False):
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
41
1540
191f3f08236d fixes #258 RhodeCode 1.2 assumes egg folder is writable
Marcin Kuzminski <marcin@python-works.com>
parents: 1404
diff changeset
42 self.pidfile = file_ if file_ else os.path.join(
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
43 os.path.dirname(__file__),
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
44 'running.lock')
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
45 self.callbackfn = callbackfn
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
46 self.desc = desc
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
47 self.debug = debug
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
48 self.held = False
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
49 #run the lock automatically !
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
50 self.lock()
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
51 self._finalize = Finalize(self, DaemonLock._on_finalize,
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
52 args=(self, debug), exitpriority=10)
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
53
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
54 @staticmethod
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
55 def _on_finalize(lock, debug):
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
56 if lock.held:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
57 if debug:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
58 print 'leck held finilazing and running lock.release()'
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
59 lock.release()
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
60
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
61 def lock(self):
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
62 """
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
63 locking function, if lock is present it
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
64 will raise LockHeld exception
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
65 """
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
66 lockname = '%s' % (os.getpid())
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
67 if self.debug:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
68 print 'running lock'
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
69 self.trylock()
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
70 self.makelock(lockname, self.pidfile)
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
71 return True
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
72
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
73 def trylock(self):
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
74 running_pid = False
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
75 if self.debug:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
76 print 'checking for already running process'
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
77 try:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
78 pidfile = open(self.pidfile, "r")
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
79 pidfile.seek(0)
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
80 running_pid = int(pidfile.readline())
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
81
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
82 pidfile.close()
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
83
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
84 if self.debug:
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
85 print ('lock file present running_pid: %s, '
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
86 'checking for execution') % running_pid
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
87 # Now we check the PID from lock file matches to the current
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
88 # process PID
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
89 if running_pid:
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
90 try:
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
91 kill(running_pid, 0)
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
92 except OSError, exc:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
93 if exc.errno in (errno.ESRCH, errno.EPERM):
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
94 print ("Lock File is there but"
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
95 " the program is not running")
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
96 print "Removing lock file for the: %s" % running_pid
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
97 self.release()
509
b50e79b4257a fixes to pidlock, to not raise unneded execptions
Marcin Kuzminski <marcin@python-works.com>
parents: 506
diff changeset
98 else:
b50e79b4257a fixes to pidlock, to not raise unneded execptions
Marcin Kuzminski <marcin@python-works.com>
parents: 506
diff changeset
99 raise
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
100 else:
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
101 print "You already have an instance of the program running"
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
102 print "It is running as process %s" % running_pid
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
103 raise LockHeld()
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
104
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
105 except IOError, e:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
106 if e.errno != 2:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
107 raise
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
108
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
109 def release(self):
504
d280aa1c85c6 removed pidlock from whoosh and added it as locked_task decorator
Marcin Kuzminski <marcin@python-works.com>
parents: 497
diff changeset
110 """releases the pid by removing the pidfile
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
111 """
506
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
112 if self.debug:
d5efb83590ef fixed lock decorator bug which didn't release the lock after func execution and rewrote the pidlock a little with Ask Solem suggestions!
Marcin Kuzminski <marcin@python-works.com>
parents: 504
diff changeset
113 print 'trying to release the pidlock'
1194
07963dd1f0f1 fixes for issue #133
Marcin Kuzminski <marcin@python-works.com>
parents: 604
diff changeset
114
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
115 if self.callbackfn:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
116 #execute callback function on release
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
117 if self.debug:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
118 print 'executing callback function %s' % self.callbackfn
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
119 self.callbackfn()
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
120 try:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
121 if self.debug:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
122 print 'removing pidfile %s' % self.pidfile
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
123 os.remove(self.pidfile)
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
124 self.held = False
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
125 except OSError, e:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
126 if self.debug:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
127 print 'removing pidfile failed %s' % e
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
128 pass
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
129
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
130 def makelock(self, lockname, pidfile):
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
131 """
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
132 this function will make an actual lock
1307
c1516b35f91d pep8ify
Marcin Kuzminski <marcin@python-works.com>
parents: 1194
diff changeset
133
604
5cc96df705b9 fixed @repo into :repo for docs
Marcin Kuzminski <marcin@python-works.com>
parents: 547
diff changeset
134 :param lockname: acctual pid of file
5cc96df705b9 fixed @repo into :repo for docs
Marcin Kuzminski <marcin@python-works.com>
parents: 547
diff changeset
135 :param pidfile: the file to write the pid in
497
fb0c3af6031b Implemented locking for task, to prevent for running the same tasks,
Marcin Kuzminski <marcin@python-works.com>
parents: 406
diff changeset
136 """
406
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
137 if self.debug:
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
138 print 'creating a file %s and pid: %s' % (pidfile, lockname)
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
139 pidfile = open(self.pidfile, "wb")
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
140 pidfile.write(lockname)
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
141 pidfile.close
b153a51b1d3b Implemented search using whoosh. Still as experimental option.
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
142 self.held = True