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Fix #2598 (Calibre 0.6b6 Crash While Converting)

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This commit is contained in:
Kovid Goyal 2009-06-17 15:42:14 -07:00
parent cab5e4f95c
commit 78cd647c6e
1 changed files with 8 additions and 9 deletions
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17
src/calibre/utils/lock.py
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@ -14,11 +14,11 @@ class LockError(Exception):
pass pass
class ExclusiveFile(object): class ExclusiveFile(object):
def __init__(self, path, timeout=10): def __init__(self, path, timeout=15):
self.path = path self.path = path
self.timeout = timeout self.timeout = timeout
def __enter__(self): def __enter__(self):
self.file = open(self.path, 'a+b') self.file = open(self.path, 'a+b')
self.file.seek(0) self.file.seek(0)
@ -42,12 +42,11 @@ class ExclusiveFile(object):
self.file.close() self.file.close()
raise LockError raise LockError
return self.file return self.file
def __exit__(self, type, value, traceback): def __exit__(self, type, value, traceback):
self.file.close()
if iswindows: if iswindows:
win32api.CloseHandle(self.mutex) win32api.CloseHandle(self.mutex)
self.file.close()
def _clean_lock_file(file): def _clean_lock_file(file):
try: try:
@ -62,10 +61,10 @@ def _clean_lock_file(file):
def singleinstance(name): def singleinstance(name):
''' '''
Return True if no other instance of the application identified by name is running, Return True if no other instance of the application identified by name is running,
False otherwise. False otherwise.
@param name: The name to lock. @param name: The name to lock.
@type name: string @type name: string
''' '''
if iswindows: if iswindows:
mutexname = 'mutexforsingleinstanceof'+__appname__+name mutexname = 'mutexforsingleinstanceof'+__appname__+name
@ -82,5 +81,5 @@ def singleinstance(name):
return True return True
except IOError: except IOError:
return False return False
return False return False