// A test program for GeekOS user mode #include "libuser.h" #include "libio.h" int Main( int argc, char **argv ) { int fd; int sink, source; fd = MessageQueueCreate("pipe1"); Printf("create mq returned %d\n", fd); source = Spawn_Program ("/c/cat.exe /c/file1", 0, fd); sink = Spawn_Program ("/c/wc.exe", fd, 1); Close(fd); Wait(sink); Wait(source); return 0; }