![]() ![]() Here, In this code After finishing reading/writing, both parent and child block instead of terminating the process and that’s why program hangs. (hangs) //program does not terminate but hangs We can write 512 bytes at a time but we can read only 1 byte at a time in a pipe. Size of read and write don’t have to match here. Pipes behave FIFO(First in First out), Pipe behave like a queue data structure. ![]() Syntax in C language: int pipe(int fds) Parameters : fd will be the fd(file descriptor) for theįd will be the fd for the write end of pipe. The pipe system call finds the first two available positions in the process’s open file table and allocates them for the read and write ends of the pipe.If a process tries to read before something is written to the pipe, the process is suspended until something is written.One process can write to this “virtual file” or pipe and another related process can read from it. The pipe can be used by the creating process, as well as all its child processes, for reading and writing. ![]() It opens a pipe, which is an area of main memory that is treated as a “virtual file”.
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