# HG changeset patch
# User jbe
# Date 1471722962 -7200
# Node ID 73d832c4a9b51801d1508cdd2088f7baabf4c8ce
# Parent  5f2a2f73e9d372e01ce2b2069669df26219fbdf1
Use luaL_setmetatable instead of luaL_getmetatable and lua_setmetatable

diff -r 5f2a2f73e9d3 -r 73d832c4a9b5 moonbridge_io.c
--- a/moonbridge_io.c	Tue Jul 26 16:22:21 2016 +0200
+++ b/moonbridge_io.c	Sat Aug 20 21:56:02 2016 +0200
@@ -782,8 +782,7 @@
   handle->fd = *fd;  /* required for set_linger call */
   moonbr_io_handle_set_linger(L, handle, 0);
   handle->fd = -1;  /* avoid closing incomplete handle */
-  luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
-  lua_setmetatable(L, -2);
+  luaL_setmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
   lua_newtable(L);  // uservalue
   lua_newtable(L);
   lua_setfield(L, -2, "writequeue");
@@ -867,8 +866,7 @@
     lua_pushinteger(L, ntohs(addr_in.sin_port));
     lua_setfield(L, -2, "remote_tcpport");
   }
-  luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
-  lua_setmetatable(L, -2);
+  luaL_setmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
   lua_setfield(L, -2, "public");
   lua_setuservalue(L, -2);
   handle->fd = *fd;
@@ -1278,8 +1276,7 @@
   child->pid = 0;
   lua_newtable(L);
   lua_setuservalue(L, -2);
-  luaL_getmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
-  lua_setmetatable(L, -2);
+  luaL_setmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
   if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
     moonbr_io_errmsg();
     lua_pushnil(L);