Shared Memory using thread in C on AIX

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.

thats a tiny program.you can

Anonymous's picture

thats a tiny program.you can write it by yourself.

for example:

in example.c...
function main() is the master function.worker1()&worker2() run as worker thread.
they share a buffer which defined as global var at the beginning.

the buffer need a synchronous lock.
lock it before read or write,and unlock it after read or write.

Webcast
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers

Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.

Learn More

Sponsored by AMD

White Paper
Red Hat White Paper: Using an Open Source Framework to Catch the Bad Guy

Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6

Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.

Learn more about catching the bad guy in this free white paper.

Learn More

Sponsored by DLT Solutions