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when handling signals (^C), deep old hook values.

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Roberto Ierusalimschy 1999-01-06 11:12:41 -02:00
parent f5bc671030
commit dc90d4bce3
1 changed files with 9 additions and 3 deletions
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12
lua.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lua.c,v 1.14 1998/02/11 20:56:05 roberto Exp roberto $ ** $Id: lua.c,v 1.15 1998/12/28 13:44:54 roberto Exp $
** Lua stand-alone interpreter ** Lua stand-alone interpreter
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -33,20 +33,26 @@ typedef void (*handler)(int); /* type for signal actions */
static void laction (int i); static void laction (int i);
static lua_LHFunction old_linehook = NULL;
static lua_CHFunction old_callhook = NULL;
static handler lreset (void) { static handler lreset (void) {
lua_linehook = NULL;
lua_callhook = NULL;
return signal(SIGINT, laction); return signal(SIGINT, laction);
} }
static void lstop (void) { static void lstop (void) {
lua_linehook = old_linehook;
lua_callhook = old_callhook;
lreset(); lreset();
lua_error("interrupted!"); lua_error("interrupted!");
} }
static void laction (int i) { static void laction (int i) {
old_linehook = lua_linehook;
old_callhook = lua_callhook;
lua_linehook = (lua_LHFunction)lstop; lua_linehook = (lua_LHFunction)lstop;
lua_callhook = (lua_CHFunction)lstop; lua_callhook = (lua_CHFunction)lstop;
} }