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Critical section - Wikipedia, the free encyclopedia
In concurrent programming a critical section is a piece of code that accesses a shared resource (data structure or device) that must not be concurrently accessed by more than one thread of execution...
en.wikipedia.org/wiki/Critical_section |
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However, some applications depend on FIFO ordering and may perform poorly or not at all on current versions of Windows (for example, applications that have been using critical sections as a rate-limiter). To ensure that your code continues to work correctly, you may need to add an additional level of synchronization.
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Critical sections, a mechanism that prohibits more than one thread at a time from executing a particular section of code, is a topic that has not received much attention and thus tends not to be well understood. ... If you're intimately familiar with critical sections and can use them without blinking, feel free to skip...
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Progress --- a process operating outside of its critical section cannot prevent other processes from entering theirs; processes attempting to enter their critical sections simultaneously must decide which process enters eventually.
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A really nice day - it started lazily, and it's ending that way (I'm watching yesterday's Colorado/Nebraska game, with two games from yesterday and three games from today left to view!), and in between I actually accomplished some "stuff". ... Cyclelog: back up Rockstore, with a wrinkle; ... It just came to me today, suddenly:
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Critical sections are our One True Tool for guaranteeing mutual exclusion on shared variables. ... Let's consider some examples to illustrate the proper and improper uses of critical sections, to get us used to looking for where the critical sections' synchronization points should appear in the code.
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September 05, 2007; Use Critical Sections (Preferably Locks) to Eliminate Races ... Not every object is shared for its entire lifetime: You only need to protect it with critical sections while it is shared, or while it is in transition from unshared to shared and vice versa (for instance, when a previously private object...
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I have an active X that claims to be apartment threaded. I dont think it is. There is not mention of critical sections or synchronization objects. I have read that these must be used for static or... ... There is not mention of critical sections or synchronization objects. I have read that these must be used for static or...
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0:000> !locks CritSec +2b1bbac at 02b1bbac WaiterWoken No LockCount 1 RecursionCount 1 OwningThread 11dc EntryCount 0 ContentionCount 4 *** Locked Scanned 58 critical sections 0:000> ~ . 0 Id: 4f8.f30 Suspend: 1 Teb: 7ffdf000 Unfrozen 1 Id: 4f8.2d4 Suspend: 1 Teb: 7ffdd000 Unfrozen 2 Id: 4f8.d14 Suspend: 1 Teb:
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A short note on Critical Sections ... # re: A Hang Scenario, Locks and Critical Sections ... # Tracking down orphaned critical sections in ASP.NET...
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