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using 'luaL_findtable' to manage hook table

This commit is contained in:
Roberto Ierusalimschy 2011-01-10 13:51:19 -02:00
parent 67feed49f1
commit c2e3cc4c89
1 changed files with 6 additions and 17 deletions
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23
ldblib.c
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@ -1,5 +1,5 @@
/*
** $Id: ldblib.c,v 1.126 2010/11/16 18:01:28 roberto Exp roberto $
** $Id: ldblib.c,v 1.127 2010/12/20 17:24:15 roberto Exp roberto $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
@ -18,6 +18,9 @@
#include "lualib.h"
#define HOOKKEY "_HKEY"
static int db_getregistry (lua_State *L) {
lua_pushvalue(L, LUA_REGISTRYINDEX);
@ -250,14 +253,13 @@ static int db_upvaluejoin (lua_State *L) {
}
static const char KEY_HOOK = 'h';
#define gethooktable(L) luaL_findtable(L, LUA_REGISTRYINDEX, HOOKKEY);
static void hookf (lua_State *L, lua_Debug *ar) {
static const char *const hooknames[] =
{"call", "return", "line", "count", "tail call"};
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
gethooktable(L);
lua_pushlightuserdata(L, L);
lua_rawget(L, -2);
if (lua_isfunction(L, -1)) {
@ -291,19 +293,6 @@ static char *unmakemask (int mask, char *smask) {
}
static void gethooktable (lua_State *L) {
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_rawget(L, LUA_REGISTRYINDEX);
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
lua_createtable(L, 0, 1);
lua_pushlightuserdata(L, (void *)&KEY_HOOK);
lua_pushvalue(L, -2);
lua_rawset(L, LUA_REGISTRYINDEX);
}
}
static int db_sethook (lua_State *L) {
int arg, mask, count;
lua_Hook func;