initial push of CPU API code

cpu-api/p2.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+int
+main(int argc, char *argv[])
+{
+    printf("hello world (pid:%d)\n", (int) getpid());
+    int rc = fork();
+    if (rc < 0) {
+        // fork failed; exit
+        fprintf(stderr, "fork failed\n");
+        exit(1);
+    } else if (rc == 0) {
+        // child (new process)
+        printf("hello, I am child (pid:%d)\n", (int) getpid());
+	sleep(1);
+    } else {
+        // parent goes down this path (original process)
+        int wc = wait(NULL);
+        printf("hello, I am parent of %d (wc:%d) (pid:%d)\n",
+	       rc, wc, (int) getpid());
+    }
+    return 0;
+}