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| <a href="oauth2client-module.html">Package oauth2client</a> :: |
| <a href="oauth2client.locked_file-module.html">Module locked_file</a> :: |
| Class LockedFile |
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| <!-- ==================== CLASS DESCRIPTION ==================== --> |
| <h1 class="epydoc">Class LockedFile</h1><p class="nomargin-top"><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile">source code</a></span></p> |
| <center> |
| <center> <map id="class_hierarchy_for_lockedfile" name="class_hierarchy_for_lockedfile"> |
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| <pre class="literalblock"> |
| Represent a file that has exclusive access. |
| |
| </pre> |
| |
| <!-- ==================== INSTANCE METHODS ==================== --> |
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| <span class="summary-type"> </span> |
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| <td><span class="summary-sig"><a href="oauth2client.locked_file.LockedFile-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>, |
| <span class="summary-sig-arg">filename</span>, |
| <span class="summary-sig-arg">mode</span>, |
| <span class="summary-sig-arg">fallback_mode</span>, |
| <span class="summary-sig-arg">use_native_locking</span>=<span class="summary-sig-default">True</span>)</span><br /> |
| Construct a LockedFile.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.__init__">source code</a></span> |
| |
| </td> |
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| |
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| <td width="15%" align="right" valign="top" class="summary"> |
| <span class="summary-type"> </span> |
| </td><td class="summary"> |
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| <tr> |
| <td><span class="summary-sig"><a name="filename"></a><span class="summary-sig-name">filename</span>(<span class="summary-sig-arg">self</span>)</span><br /> |
| Return the filename we were constructed with.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.filename">source code</a></span> |
| |
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| <tr> |
| <td width="15%" align="right" valign="top" class="summary"> |
| <span class="summary-type"> </span> |
| </td><td class="summary"> |
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| <tr> |
| <td><span class="summary-sig"><a name="file_handle"></a><span class="summary-sig-name">file_handle</span>(<span class="summary-sig-arg">self</span>)</span><br /> |
| Return the file_handle to the opened file.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.file_handle">source code</a></span> |
| |
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| <span class="summary-type"> </span> |
| </td><td class="summary"> |
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| <tr> |
| <td><span class="summary-sig"><a name="is_locked"></a><span class="summary-sig-name">is_locked</span>(<span class="summary-sig-arg">self</span>)</span><br /> |
| Return whether we successfully locked the file.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.is_locked">source code</a></span> |
| |
| </td> |
| </tr> |
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| <tr> |
| <td width="15%" align="right" valign="top" class="summary"> |
| <span class="summary-type"> </span> |
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| <tr> |
| <td><span class="summary-sig"><a href="oauth2client.locked_file.LockedFile-class.html#open_and_lock" class="summary-sig-name">open_and_lock</a>(<span class="summary-sig-arg">self</span>, |
| <span class="summary-sig-arg">timeout</span>=<span class="summary-sig-default">0</span>, |
| <span class="summary-sig-arg">delay</span>=<span class="summary-sig-default">0.05</span>)</span><br /> |
| Open the file, trying to lock it.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.open_and_lock">source code</a></span> |
| |
| </td> |
| </tr> |
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| |
| </td> |
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| <tr> |
| <td width="15%" align="right" valign="top" class="summary"> |
| <span class="summary-type"> </span> |
| </td><td class="summary"> |
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| <tr> |
| <td><span class="summary-sig"><a name="unlock_and_close"></a><span class="summary-sig-name">unlock_and_close</span>(<span class="summary-sig-arg">self</span>)</span><br /> |
| Unlock and close a file.</td> |
| <td align="right" valign="top"> |
| <span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.unlock_and_close">source code</a></span> |
| |
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| <td colspan="2" class="summary"> |
| <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>: |
| <code>__delattr__</code>, |
| <code>__format__</code>, |
| <code>__getattribute__</code>, |
| <code>__hash__</code>, |
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| <code>__str__</code>, |
| <code>__subclasshook__</code> |
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| <!-- ==================== PROPERTIES ==================== --> |
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| <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>: |
| <code>__class__</code> |
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| <a name="__init__"></a> |
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| <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>, |
| <span class="sig-arg">filename</span>, |
| <span class="sig-arg">mode</span>, |
| <span class="sig-arg">fallback_mode</span>, |
| <span class="sig-arg">use_native_locking</span>=<span class="sig-default">True</span>)</span> |
| <br /><em class="fname">(Constructor)</em> |
| </h3> |
| </td><td align="right" valign="top" |
| ><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.__init__">source code</a></span> |
| </td> |
| </tr></table> |
| |
| <pre class="literalblock"> |
| Construct a LockedFile. |
| |
| Args: |
| filename: string, The path of the file to open. |
| mode: string, The mode to try to open the file with. |
| fallback_mode: string, The mode to use if locking fails. |
| use_native_locking: bool, Whether or not fcntl/win32 locking is used. |
| |
| </pre> |
| <dl class="fields"> |
| <dt>Overrides: |
| object.__init__ |
| </dt> |
| </dl> |
| </td></tr></table> |
| </div> |
| <a name="open_and_lock"></a> |
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| <tr valign="top"><td> |
| <h3 class="epydoc"><span class="sig"><span class="sig-name">open_and_lock</span>(<span class="sig-arg">self</span>, |
| <span class="sig-arg">timeout</span>=<span class="sig-default">0</span>, |
| <span class="sig-arg">delay</span>=<span class="sig-default">0.05</span>)</span> |
| </h3> |
| </td><td align="right" valign="top" |
| ><span class="codelink"><a href="oauth2client.locked_file-pysrc.html#LockedFile.open_and_lock">source code</a></span> |
| </td> |
| </tr></table> |
| |
| <pre class="literalblock"> |
| Open the file, trying to lock it. |
| |
| Args: |
| timeout: float, The number of seconds to try to acquire the lock. |
| delay: float, The number of seconds to wait between retry attempts. |
| |
| Raises: |
| AlreadyLockedException: if the lock is already acquired. |
| IOError: if the open fails. |
| |
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