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not hold the lock across system or function calls where the entity is no longer running on the processor – this can lead to deadlock; ensure that if the entity is unexpectedly exited for any reason, the lock is freed. Non-holders of the lock (a.k.a. waiters) can be held in a list that is serviced in a round-robin fashion, or in a FIFO queue ...
The sharing mode (dwShareMode) parameter of the CreateFile [2] function (used to open files) determines file-sharing. The sharing mode can be specified to allow sharing the file for read, write, or delete access, or any combination of these. Subsequent attempts to open the file must be compatible with all previously granted sharing-access to ...
However, if contention for data resources is frequent, the cost of repeatedly restarting transactions hurts performance significantly, in which case other concurrency control methods may be better suited. However, locking-based ("pessimistic") methods also can deliver poor performance because locking can drastically limit effective concurrency ...
Though Chubby was designed as a lock service, it is now heavily used inside Google as a name server, supplanting DNS. [5] Apache ZooKeeper, which was created at Yahoo, is open-source software and can be used to perform distributed locks [6] as well. Etcd is open-source software, developed at CoreOS under the Apache License. [7]
These dogs are truly deserving of a little fun in their lives. As the rescue themselves noted, many of the dogs are in hospice care with cancer, renal failure, or other serious health issues. So ...
AOL Mail welcomes Verizon customers to our safe and delightful email experience!
A "save as" file dialog from GTK.The file browser is hidden inside a disclosure widget. An "open" file dialog opened from a web browser on Windows 10.. In computing, a file dialog (also called file selector/chooser, file requester, or open and save dialog) is a dialog box-type graphical control element that allows users to choose a file from the file system.
From January 2008 to June 2008, if you bought shares in companies when Jack C. Shewmaker joined the board, and sold them when he left, you would have a 23.1 percent return on your investment, compared to a -7.3 percent return from the S&P 500.