Mercurial Repositories > eric / file comparison
comparison: src/eric7/EricUtilities/EricMutexLocker.py
src/eric7/EricUtilities/EricMutexLocker.py
- branch
- eric7
- changeset 9221
- bf71ee032bb4
- parent 9209
- b99e7fd55fd3
- child 9653
- e67609152c5e
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| 9220:e9e7eca7efee | 9221:bf71ee032bb4 |
|---|---|
| 12 | 12 |
| 13 class EricMutexLocker(contextlib.AbstractContextManager): | 13 class EricMutexLocker(contextlib.AbstractContextManager): |
| 14 """ | 14 """ |
| 15 Class implementing a context manager locking and unlocking a mutex. | 15 Class implementing a context manager locking and unlocking a mutex. |
| 16 """ | 16 """ |
| 17 | |
| 17 def __init__(self, mutex): | 18 def __init__(self, mutex): |
| 18 """ | 19 """ |
| 19 Constructor | 20 Constructor |
| 20 | 21 |
| 21 @param mutex reference to the mutex to be locked | 22 @param mutex reference to the mutex to be locked |
| 22 @type QMutex or QRecursiveMutex | 23 @type QMutex or QRecursiveMutex |
| 23 """ | 24 """ |
| 24 self.__mutex = mutex | 25 self.__mutex = mutex |
| 25 | 26 |
| 26 def __enter__(self): | 27 def __enter__(self): |
| 27 """ | 28 """ |
| 28 Special method called when entering the runtime ccontext. | 29 Special method called when entering the runtime ccontext. |
| 29 | 30 |
| 30 @return reference to the context manager object | 31 @return reference to the context manager object |
| 31 @rtype EricOverrideCursor | 32 @rtype EricOverrideCursor |
| 32 """ | 33 """ |
| 33 self.__mutex.lock() | 34 self.__mutex.lock() |
| 34 | 35 |
| 35 return self | 36 return self |
| 36 | 37 |
| 37 def __exit__(self, exc_type, exc_value, traceback): | 38 def __exit__(self, exc_type, exc_value, traceback): |
| 38 """ | 39 """ |
| 39 Special method called when exiting the runtime ccontext. | 40 Special method called when exiting the runtime ccontext. |
| 40 | 41 |
| 41 @param exc_type type of an exception raised in the runtime context | 42 @param exc_type type of an exception raised in the runtime context |
| 42 @param exc_value value of an exception raised in the runtime context | 43 @param exc_value value of an exception raised in the runtime context |
| 43 @param traceback traceback of an exception raised in the runtime | 44 @param traceback traceback of an exception raised in the runtime |
| 44 context | 45 context |
| 45 @return always returns None to not suppress any exception | 46 @return always returns None to not suppress any exception |
| 46 @rtype None | 47 @rtype None |
| 47 """ | 48 """ |
| 48 self.__mutex.unlock() | 49 self.__mutex.unlock() |
| 49 | 50 |
| 50 return None # __IGNORE_WARNING_M831__ | 51 return None # __IGNORE_WARNING_M831__ |
