tools/migration/Makefile: Don't install main.lua (we already install it as prosody...

[prosody.git] / util-src / signal.c

diff --git a/util-src/signal.c b/util-src/signal.c
index 447c1c16a397f4c4eedc11ef2b735a23656e7c04..961d2d3e06acda484613a0ebdfc54a8f25625586 100644 (file)
--- a/util-src/signal.c
+++ b/util-src/signal.c
@@ -1,9 +1,9 @@
 /*
  * signal.c -- Signal Handler Library for Lua
  *
- * Version: 1.000
+ * Version: 1.000+changes
  *
- * Copyright (C) 2007  Patrick J. Donnelly (batrick@unm.edu)
+ * Copyright (C) 2007  Patrick J. Donnelly (batrick@batbytes.com)
  *
  * This software is distributed under the same license as Lua 5.0:
  *
@@ -27,6 +27,7 @@
 */
 
 #include <signal.h>
+#include <stdlib.h>
 
 #include "lua.h"
 #include "lauxlib.h"
@@ -149,43 +150,67 @@ static const struct lua_signal lua_signals[] = {
   {NULL, 0}
 };
 
-static int Nsig = 0;
 static lua_State *Lsig = NULL;
 static lua_Hook Hsig = NULL;
 static int Hmask = 0;
 static int Hcount = 0;
 
+static struct signal_event
+{
+       int Nsig;
+       struct signal_event *next_event;
+} *signal_queue = NULL;
+
+static struct signal_event *last_event = NULL;
+
 static void sighook(lua_State *L, lua_Debug *ar)
 {
+  struct signal_event *event;
+  /* restore the old hook */
+  lua_sethook(L, Hsig, Hmask, Hcount);
+
   lua_pushstring(L, LUA_SIGNAL);
   lua_gettable(L, LUA_REGISTRYINDEX);
-  lua_pushnumber(L, Nsig);
-  lua_gettable(L, -2);
 
-  lua_call(L, 0, 0);
+  while((event = signal_queue))
+  {
+    lua_pushnumber(L, event->Nsig);
+    lua_gettable(L, -2);
+    lua_call(L, 0, 0);
+    signal_queue = event->next_event;
+    free(event);
+  };
+
+  lua_pop(L, 1); /* pop lua_signal table */
 
-  /* set the old hook */
-  lua_sethook(L, Hsig, Hmask, Hcount);
 }
 
 static void handle(int sig)
 {
-  Hsig = lua_gethook(Lsig);
-  Hmask = lua_gethookmask(Lsig);
-  Hcount = lua_gethookcount(Lsig);
-  Nsig = sig;
-
-  lua_sethook(Lsig, sighook, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
-  /*
-  switch (sig)
+  if(!signal_queue)
   {
-    case SIGABRT: ;
-    case SIGFPE: ;
-    case SIGILL: ;
-    case SIGINT: ;
-    case SIGSEGV: ;
-    case SIGTERM: ;
-  } */
+    /* Store the existing debug hook (if any) and its parameters */
+    Hsig = lua_gethook(Lsig);
+    Hmask = lua_gethookmask(Lsig);
+    Hcount = lua_gethookcount(Lsig);
+    
+    signal_queue = malloc(sizeof(struct signal_event));
+    signal_queue->Nsig = sig;
+    signal_queue->next_event = NULL;
+
+    last_event = signal_queue;
+    
+    /* Set our new debug hook */
+    lua_sethook(Lsig, sighook, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
+  }
+  else
+  {
+    last_event->next_event = malloc(sizeof(struct signal_event));
+    last_event->next_event->Nsig = sig;
+    last_event->next_event->next_event = NULL;
+    
+    last_event = last_event->next_event;
+  }
 }
 
 /*
@@ -301,7 +326,7 @@ static int l_raise(lua_State *L)
   return 1;
 }
 
-#if defined _POSIX_SOURCE || (defined(sun) || defined(__sun))
+#if defined(__unix__) || defined(__APPLE__)
 
 /* define some posix only functions */
 
@@ -348,7 +373,7 @@ static int l_kill(lua_State *L)
 static const struct luaL_Reg lsignal_lib[] = {
   {"signal", l_signal},
   {"raise", l_raise},
-#if defined _POSIX_SOURCE || (defined(sun) || defined(__sun))
+#if defined(__unix__) || defined(__APPLE__)
   {"kill", l_kill},
 #endif
   {NULL, NULL}