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In the indicated program, the parent process creates a pipe first and then splits a child’s process. If successful, the pipe() system call creates a pipe with its read operation Write the queue descriptor stored in pipefd and the queue descriptor stored in pipefd.
EDU402 ASSIGNMENT 1 SOLUTION SPRING 2022
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We call fork() to create a child process, then use the fact that the memory dump of The child process is identical to the memory dump of the parent process, which is the piped  array. it’s still defined the same in both, so they both have file descriptions from the tube. Since the file descriptor table is also copied during the fork.
The file descriptions are still valid within the underlying process. So parent and child Processes can use the pipe for one-way communication as described above. Unix / Linux standard descriptor The kernel automatically opens three files for each process in the process. Reads the input and sends the output and error messages.
These files Standard file: standard input, standard output, and standard error. By default, Standard File d is attached to the device on which the process is running. standard descriptor The file is known as a standard file descriptor. Standard files, their descriptors e The default attachments are.