The wait() System Call. The system call wait() is easy. This function blocks the calling process until one of its child processes exits or a signal is received. For our purpose, we shall ignore signals. wait() takes the address of an integer variable and returns the process ID of the completed process. Some flags that indicate the completion status of the child process are passed back with.
CNET editors and users share the top tech 'how to' tips and tricks with advice for getting the most out of all your gadgets.
Argument Type Details; 1: resData: Data, if any, sent in the response from the Sails server. This is the same thing as jwres.body.: 2: jwres: A JSON WebSocket response, which consists of headers (a ), body (), and statusCode (a ).
A variety of API functions exist to read data from a socket or write data to a socket. Two of the API functions (recv, send) are used exclusively by sockets that are connected (such as stream sockets), whereas an alternative pair (recvfrom, sendto) is used exclusively by sockets that are unconnected (such as datagram sockets).
If you want to use the standard QIODevice functions read(), readLine(), write(), etc., you must first connect the socket directly to a peer by calling connectToHost(). The socket emits the bytesWritten() signal every time a datagram is written to the network.
In this article we will see an example of how to open a socket using PL SQL programming. We will also see how to read and write from the socket. Oracle is more than database. You can write a complex business logic that can do core work for your organization using Oracle PL SQL Programming. Tools Used. Oracle Express Edition; Java 1.8; Eclipse IDE.
It waits here until a client contacts it. At that point, it receives a new socket, c, which it can use to communicate with this particular client. It uses the C function fdopen to turn the socket from a low-level file descriptor to a C-style FILE pointer. This will allow the use of fprintf later on.
For example, the following function serializes a long into a memory stream object whose raw buffer contents could be passed on the wire through the opened socket and then unpacked with a similar Deserialize routine.