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authorKarl Palsson <karlp@etactica.com>2020-06-30 10:38:43 +0000
committerPetr Štetiar <ynezz@true.cz>2020-07-11 11:15:12 +0200
commit53b9a2123fc6f0a7fa09ada066cbb0491c72bcf5 (patch)
tree877bb70ec1c6203df81c1e702a387eb8571f30a0
parentc0941d3289fc0f1468ad6384f7af141cfd4adead (diff)
downloadlibubox-53b9a2123fc6f0a7fa09ada066cbb0491c72bcf5.tar.gz
lua/uloop: fd_add: use absolute indices for arguments
Instead of having to adjust the index repeatedly as the stack is manipulated, use absolute addressing for the function arguments, so they stay the same throughout the call. Zero functional change, just subjectively easier to follow variables. Signed-off-by: Karl Palsson <karlp@etactica.com>
-rw-r--r--lua/uloop.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/lua/uloop.c b/lua/uloop.c
index 394970d..ee82104 100644
--- a/lua/uloop.c
+++ b/lua/uloop.c
@@ -233,24 +233,23 @@ static int ul_ufd_add(lua_State *L)
int ref;
int fd_ref;
- flags = luaL_checkinteger(L, -1);
+ flags = luaL_checkinteger(L, 3);
if (!flags) {
lua_pushstring(L, "flags cannot be zero");
lua_error(L);
}
- lua_pop(L, 1);
- luaL_checktype(L, -1, LUA_TFUNCTION);
+ luaL_checktype(L, 2, LUA_TFUNCTION);
- fd = get_sock_fd(L, -2);
+ fd = get_sock_fd(L, 1);
lua_getglobal(L, "__uloop_cb");
- lua_pushvalue(L, -2);
+ lua_pushvalue(L, 2);
ref = luaL_ref(L, -2);
lua_pop(L, 1);
lua_getglobal(L, "__uloop_fds");
- lua_pushvalue(L, -3);
+ lua_pushvalue(L, 1);
fd_ref = luaL_ref(L, -2);
lua_pop(L, 1);