Added usleep native wrapper

include/lupi.h

@@ -9,6 +9,7 @@
 #define pushctuple(state, name, value) lua_pushstring((state), (name)); lua_pushcfunction((state), (value)); lua_settable((state), -3)
 
 void run_init();
+void luanative_start(lua_State *L);
 void setup_modules(lua_State *L);
 void termutils_start(lua_State *L);
 #endif

src/c/lnative.c

@@ -0,0 +1,19 @@
+#include "lupi.h"
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static int l_sleep (lua_State *L) {
+  int t = lua_tonumber(L, 1);
+  usleep(t);
+  return 0;
+}
+
+void luanative_start(lua_State *L) {
+  lua_createtable (L, 0, 1);
+  pushctuple(L, "sleep", l_sleep);
+  
+  lua_setglobal(L, "native");
+}

src/c/run.c

@@ -11,6 +11,7 @@ void run_init() {
 
   luaL_openlibs   (L);
   setup_modules   (L);
+  luanative_start (L);
   termutils_start (L);
 
   int status = luaL_loadstring(L, lua_init);

src/lua/core/boot.lua

@@ -5,8 +5,10 @@ function boot.boot()
 	local w, h = gpu.getResolution()
 	print("r= " .. tostring(w) .. " " .. tostring(h))
 	gpu.fill(0, 0, w, h, " ")
+	gpu.set(10, 5, "HHHHHHHHHHHHH")
 	print("LuPI L2 INIT")
 	print("FIXME: boot stub")
+	native.sleep(1000000)
 	error("Unable to boot")
 end