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Shared memory using threads

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Operating Systems Linux Shared memory using threads
# 1  
Old 06-18-2008
Shared memory using threads
I am looking for C program source code. Could you please help me in finding the source code required mentioned below.

program to create multiple threads (one master thread and rest worker threads) and using the threads write into and read from shared memory


Restrictions:

Only one thread should be able to read at any instant of time into shared memory region.

Only one thread should be able to write at any instant of time into shared memory region.

Worker threads should inform the master thread after every read and write operation.

Master thread inform the worker thread (which is waiting to acquire shared memory region) that read or write operation is successful and it can acquire the memory for either reading and writing operations.
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LEARN ABOUT BSD

threads

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)