Add spawntest

tests/spawntest.c

@@ -0,0 +1,33 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+// Castor Only
+#include <syscall.h>
+
+int
+main(int argc, const char *argv[])
+{
+    int status[10];
+
+    printf("Spawn test: ");
+    for (int i = 0; i < 10; i++) {
+	status[0] = OSSpawn("/bin/echo", &argv[0]);
+	OSWait(status[0]);
+    }
+    printf("Success!\n");
+
+    printf("Spawn parallel test: ");
+    for (int i = 0; i < 10; i++) {
+	status[i] = OSSpawn("/bin/echo", &argv[0]);
+    }
+    for (int i = 0; i < 10; i++) {
+	OSWait(0);
+    }
+    printf("Success!\n");
+
+    return 0;
+}
+