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Top Forums Programming MultiThreading using Pthreads Post 302380611 by Corona688 on Tuesday 15th of December 2009 04:13:25 PM
Old 12-15-2009
I'd just be restating what I said already: Things that don't contend for the same resource can be done concurrently. Using local variables isn't contention, but global variables would, static variables would, and class members would. Modifying any of those would be contention, which would need a mutex to guarantee that only one thread at a time uses it -- that is, reads OR writes it -- at once.

Ergo, if modifying class members is nearly all that Receive() does, there's not a lot of point in multithreading it since you'll have to force them to use the object one-at-a-time anyway to avoid race conditions. What else did you want to know?

Last edited by Corona688; 12-15-2009 at 05:19 PM..
 

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Portable Threads Abstraction Classes(3)                                Coin                                Portable Threads Abstraction Classes(3)

NAME
Portable Threads Abstraction Classes - Classes class SbBarrier The SbBarrier class implements the 'barrier' multi-thread synchronization technique. A barrier is a synchronization mechanism that is used for blocking threads as they enter the barrier until a given number of threads are blocked, at which point all the threads are released again. " class SbCondVar A class for synchronizing access to global variables. Condition variables are used to protect global variables in an environment where multiple threads are running concurrently. " class SbFifo A class for managing a pointer first-in, first-out queue. class SbMutex A basic class for managing a mutex. This class provides a portable framework around the mutex interface of the underlying native thread-handling toolkit. " class SbThreadAutoLock Simple convenience class for locking access to a function. This class provides a simple convenience mechanism for automatically locking access to a function that is not re-entrant. " class SbRWMutex class SbStorage The SbStorage class manages thread-local memory. This class manages thread-local memory. When different threads access the memory an SbStorage object manages, they will receive different memory blocks back. " class SbTypedStorage< Type > The SbTypedStorage class manages generic thread-local memory. This class manages thread-local memory. When different threads access the memory an SbTypedStorage object manages, they will receive different memory blocks back. " class SbThread A class for managing threads. This class provides a portable framework around the tasks of instantiating, starting, stopping and joining threads. " Detailed Description Coin implements a set of abstractions over the native threads data types that can be portably used across all the platforms Coin has been ported to. Author Generated automatically by Doxygen for Coin from the source code. Version 3.1.3 Wed May 23 2012 Portable Threads Abstraction Classes(3)
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