Author: metze
Date: 2005-09-27 12:54:08 +0000 (Tue, 27 Sep 2005)
New Revision: 10537

WebSVN: 
http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=10537

Log:
- we now use a much nicer way to handle talloc_free(timed_event)
  the events code replaces a destructor to one that returns allways -1
  while it's calling the event handler
- we don't need the composite and winsrepl specific fixes any more
- this also fixes the problem with smbcli, dcerpc, cldap, ldap and nbt
  request timeouts

metze
Modified:
   branches/SAMBA_4_0/source/gtk/common/gtk_events.c
   branches/SAMBA_4_0/source/lib/events/events_liboop.c
   branches/SAMBA_4_0/source/lib/events/events_standard.c
   branches/SAMBA_4_0/source/libcli/composite/composite.c
   branches/SAMBA_4_0/source/libcli/wrepl/winsrepl.c


Changeset:
Modified: branches/SAMBA_4_0/source/gtk/common/gtk_events.c
===================================================================
--- branches/SAMBA_4_0/source/gtk/common/gtk_events.c   2005-09-27 12:07:01 UTC 
(rev 10536)
+++ branches/SAMBA_4_0/source/gtk/common/gtk_events.c   2005-09-27 12:54:08 UTC 
(rev 10537)
@@ -209,46 +209,44 @@
 }
 
 struct gtk_timed_event {
-       BOOL running;
        guint te_id;
 };
 
-static gboolean gtk_event_timed_handler(gpointer data)
+/*
+  destroy a timed event
+*/
+static int gtk_event_timed_destructor(void *ptr)
 {
-       struct timed_event *te = talloc_get_type(data, struct timed_event);
+       struct timed_event *te = talloc_get_type(ptr, struct timed_event);
        struct gtk_timed_event *gtk_te = talloc_get_type(te->additional_data,
                                                         struct 
gtk_timed_event);
-       struct timeval t = timeval_current();
 
-       gtk_te->running = True;
-       te->handler(te->event_ctx, te, t, te->private_data);
-       gtk_te->running = False;
+       g_source_remove(gtk_te->te_id);
 
-       talloc_free(te);
+       return 0;
+}
 
-       /* return FALSE mean this event should be removed */
-       return gtk_false();
+static int gtk_event_timed_deny_destructor(void *ptr)
+{
+       return -1;
 }
 
-/*
-  destroy a timed event
-*/
-static int gtk_event_timed_destructor(void *ptr)
+static gboolean gtk_event_timed_handler(gpointer data)
 {
-       struct timed_event *te = talloc_get_type(ptr, struct timed_event);
+       struct timed_event *te = talloc_get_type(data, struct timed_event);
        struct gtk_timed_event *gtk_te = talloc_get_type(te->additional_data,
                                                         struct 
gtk_timed_event);
+       struct timeval t = timeval_current();
 
-       if (gtk_te->running) {
-               /* the event is running reject the talloc_free()
-                  as it's done by the gtk_event_timed_handler()
-                */
-               return -1;
-       }
+       /* deny the handler to free the event */
+       talloc_set_destructor(te, gtk_event_timed_deny_destructor);
+       te->handler(te->event_ctx, te, t, te->private_data);
 
-       g_source_remove(gtk_te->te_id);
+       talloc_set_destructor(te, gtk_event_timed_destructor);
+       talloc_free(te);
 
-       return 0;
+       /* return FALSE mean this event should be removed */
+       return gtk_false();
 }
 
 /*
@@ -285,7 +283,6 @@
        timeout                 = 
((diff_tv.tv_usec+999)/1000)+(diff_tv.tv_sec*1000);
 
        gtk_te->te_id           = g_timeout_add(timeout, 
gtk_event_timed_handler, te);
-       gtk_te->running         = False;
 
        talloc_set_destructor(te, gtk_event_timed_destructor);
 

Modified: branches/SAMBA_4_0/source/lib/events/events_liboop.c
===================================================================
--- branches/SAMBA_4_0/source/lib/events/events_liboop.c        2005-09-27 
12:07:01 UTC (rev 10536)
+++ branches/SAMBA_4_0/source/lib/events/events_liboop.c        2005-09-27 
12:54:08 UTC (rev 10537)
@@ -172,12 +172,23 @@
        fde->flags = flags;
 }
 
+static int oop_event_timed_destructor(void *ptr);
+static int oop_event_timed_deny_destructor(void *ptr)
+{
+       return -1;
+}
+
 static void *oop_event_timed_handler(oop_source *oop, struct timeval t, void 
*ptr)
 {
        struct timed_event *te = ptr;
 
+       /* deny the handler to free the event */
+       talloc_set_destructor(te, oop_event_timed_deny_destructor);
        te->handler(te->event_ctx, te, t, te->private_data);
 
+       talloc_set_destructor(te, oop_event_timed_destructor);
+       talloc_free(te);
+
        return OOP_CONTINUE;
 }
 
@@ -218,7 +229,7 @@
        te->private_data        = private_data;
        te->additional_data     = NULL;
 
-       oop->cancel_time(oop, te->next_event, oop_event_timed_handler, te);
+       oop->on_time(oop, te->next_event, oop_event_timed_handler, te);
 
        talloc_set_destructor(te, oop_event_timed_destructor);
 

Modified: branches/SAMBA_4_0/source/lib/events/events_standard.c
===================================================================
--- branches/SAMBA_4_0/source/lib/events/events_standard.c      2005-09-27 
12:07:01 UTC (rev 10536)
+++ branches/SAMBA_4_0/source/lib/events/events_standard.c      2005-09-27 
12:54:08 UTC (rev 10537)
@@ -284,6 +284,11 @@
        return 0;
 }
 
+static int std_event_timed_deny_destructor(void *ptr)
+{
+       return -1;
+}
+
 /*
   add a timed event
   return NULL on failure (memory allocation error)
@@ -340,17 +345,12 @@
                return;
        }
 
-       te->next_event = timeval_zero();
-
+       /* deny the handler to free the event */
+       talloc_set_destructor(te, std_event_timed_deny_destructor);
        te->handler(ev, te, t, te->private_data);
 
-       /* note the care taken to prevent referencing a event
-          that could have been freed by the handler */
-       if (std_ev->timed_events) {
-               if (timeval_is_zero(&std_ev->timed_events->next_event)) {
-                       talloc_free(te);
-               }
-       }
+       talloc_set_destructor(te, std_event_timed_destructor);
+       talloc_free(te);
 }
 
 #if WITH_EPOLL

Modified: branches/SAMBA_4_0/source/libcli/composite/composite.c
===================================================================
--- branches/SAMBA_4_0/source/libcli/composite/composite.c      2005-09-27 
12:07:01 UTC (rev 10536)
+++ branches/SAMBA_4_0/source/libcli/composite/composite.c      2005-09-27 
12:54:08 UTC (rev 10537)
@@ -52,12 +52,6 @@
 {
        struct composite_context *c = talloc_get_type(ptr, struct 
composite_context);
        if (c->async.fn) {
-               /*
-                * the event is a child of req,
-                * and req will be free'ed by the callback fn
-                * but the events code wants to free the event itself
-                */
-               talloc_steal(ev, te);   
                c->async.fn(c);
        }
 }

Modified: branches/SAMBA_4_0/source/libcli/wrepl/winsrepl.c
===================================================================
--- branches/SAMBA_4_0/source/libcli/wrepl/winsrepl.c   2005-09-27 12:07:01 UTC 
(rev 10536)
+++ branches/SAMBA_4_0/source/libcli/wrepl/winsrepl.c   2005-09-27 12:54:08 UTC 
(rev 10537)
@@ -385,12 +385,6 @@
 {
        struct wrepl_request *req = talloc_get_type(ptr, struct wrepl_request);
        if (req->async.fn) {
-               /*
-                * the event is a child of req,
-                * and req will be free'ed by the callback fn
-                * but the events code wants to free the event itself
-                */
-               talloc_steal(ev, te);
                req->async.fn(req);
        }
 }

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