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Diffstat (limited to 'venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/lockfile/mkdirlockfile.py')
-rw-r--r--venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/lockfile/mkdirlockfile.py84
1 files changed, 0 insertions, 84 deletions
diff --git a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/lockfile/mkdirlockfile.py b/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/lockfile/mkdirlockfile.py
deleted file mode 100644
index 05a8c96..0000000
--- a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/lockfile/mkdirlockfile.py
+++ /dev/null
@@ -1,84 +0,0 @@
-from __future__ import absolute_import, division
-
-import time
-import os
-import sys
-import errno
-
-from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
- AlreadyLocked)
-
-
-class MkdirLockFile(LockBase):
- """Lock file by creating a directory."""
- def __init__(self, path, threaded=True, timeout=None):
- """
- >>> lock = MkdirLockFile('somefile')
- >>> lock = MkdirLockFile('somefile', threaded=False)
- """
- LockBase.__init__(self, path, threaded, timeout)
- # Lock file itself is a directory. Place the unique file name into
- # it.
- self.unique_name = os.path.join(self.lock_file,
- "%s.%s%s" % (self.hostname,
- self.tname,
- self.pid))
-
- def acquire(self, timeout=None):
- timeout = timeout if timeout is not None else self.timeout
- end_time = time.time()
- if timeout is not None and timeout > 0:
- end_time += timeout
-
- if timeout is None:
- wait = 0.1
- else:
- wait = max(0, timeout / 10)
-
- while True:
- try:
- os.mkdir(self.lock_file)
- except OSError:
- err = sys.exc_info()[1]
- if err.errno == errno.EEXIST:
- # Already locked.
- if os.path.exists(self.unique_name):
- # Already locked by me.
- return
- if timeout is not None and time.time() > end_time:
- if timeout > 0:
- raise LockTimeout("Timeout waiting to acquire"
- " lock for %s" %
- self.path)
- else:
- # Someone else has the lock.
- raise AlreadyLocked("%s is already locked" %
- self.path)
- time.sleep(wait)
- else:
- # Couldn't create the lock for some other reason
- raise LockFailed("failed to create %s" % self.lock_file)
- else:
- open(self.unique_name, "wb").close()
- return
-
- def release(self):
- if not self.is_locked():
- raise NotLocked("%s is not locked" % self.path)
- elif not os.path.exists(self.unique_name):
- raise NotMyLock("%s is locked, but not by me" % self.path)
- os.unlink(self.unique_name)
- os.rmdir(self.lock_file)
-
- def is_locked(self):
- return os.path.exists(self.lock_file)
-
- def i_am_locking(self):
- return (self.is_locked() and
- os.path.exists(self.unique_name))
-
- def break_lock(self):
- if os.path.exists(self.lock_file):
- for name in os.listdir(self.lock_file):
- os.unlink(os.path.join(self.lock_file, name))
- os.rmdir(self.lock_file)