Use pipe command instead of mkfifo
Replace the current use of mkfifo with pipe command. This has the advantage, that we don't use the filesystem anymore but get two filedescriptors directly that can then be opened for read/write as needed.
Replace the current use of mkfifo with pipe command. This has the advantage, that we don't use the filesystem anymore but get two filedescriptors directly that can then be opened for read/write as needed.