What is a client-server program in C?
Below you’ll find an example of a very simple client-server program in C. Basically the client connects to the server, the server sends the message “Hello World”, and the client prints the received message.
What is meant by process synchronization?
A cooperating process is the one which can affect or be affected by other process which will lead to inconsistency in processes data therefore Process synchronization is required for consistency of data. Every process has a reserved segment of code which is known as Critical Section.
What is thread synchronization in C++?
Thread synchronization is defined as a mechanism which ensures that two or more concurrent processes or threads do not simultaneously execute some particular program segment known as a critical section. Processes’ access to critical section is controlled by using synchronization techniques.
How to run server and client programs on the same server?
Run the program with server IP address or name as an argument. Here we use IP address. Make sure your previous serverprog program is running. We will connect using the same server. You can try running the server and client program at different machines. [[email protected] testsocket]$./clientprog 203.106.93.94
What is a Linux message queue?
These message queues are a part of Linux. These calls are used as a standard now but might be a part of contemporary versions. These calls are easy to implement with a much cleaner interface. V message queues in a Linux system are identified using keys that are obtained using ftok calls. These POSIX message queues usually use name strings.
What are the Posix queue calls?
POSIX message queues must link with any library that exits for real. Following are a few calls that are used: The details of Queue Calls are discussed below: This function is used to open up a POSIX queue. Mq_open is a function that is used to call the name of the queue.
How to use O_NONBLOCK in a queue?
Users can use the O_NONBLOCK flag to specify the queue to the non-blocking mode and mq_send and mq_receive to send and receive data in a queue. Mq_MaxMsg: Maximum number of messages that can be entered inside the queue Mq_Msgsize: Maximum number of bytes in a message Mq_CurMsgs: Currently sent messages within a queue
