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/*
Unix SMB/CIFS implementation.
Copyright (C) Andrew Tridgell 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#define TEVENT_DEPRECATED 1
#include "lib/events/events.h"
/*
this is used to catch debug messages from events
*/
static void ev_wrap_debug(void *context, enum tevent_debug_level level,
const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
static void ev_wrap_debug(void *context, enum tevent_debug_level level,
const char *fmt, va_list ap)
{
int samba_level = -1;
char *s = NULL;
switch (level) {
case TEVENT_DEBUG_FATAL:
samba_level = 0;
break;
case TEVENT_DEBUG_ERROR:
samba_level = 1;
break;
case TEVENT_DEBUG_WARNING:
samba_level = 2;
break;
case TEVENT_DEBUG_TRACE:
samba_level = 50;
break;
};
vasprintf(&s, fmt, ap);
if (!s) return;
DEBUG(samba_level, ("tevent: %s", s));
free(s);
}
/*
create a event_context structure. This must be the first events
call, and all subsequent calls pass this event_context as the first
element. Event handlers also receive this as their first argument.
This samba4 specific call sets the samba4 debug handler.
*/
struct tevent_context *s4_event_context_init(TALLOC_CTX *mem_ctx)
{
struct tevent_context *ev;
ev = tevent_context_init_byname(mem_ctx, NULL);
if (ev) {
tevent_set_debug(ev, ev_wrap_debug, NULL);
tevent_loop_allow_nesting(ev);
}
return ev;
}
static struct tevent_context *default_tevent_context;
/* set a default event context that will be used for
* event_context_find() if a parent event context is not found
*/
void s4_event_context_set_default(struct tevent_context *ev)
{
default_tevent_context = ev;
}
/*
find an event context that is a parent of the given memory context,
or create a new event context as a child of the given context if
none is found
This should be used in preference to event_context_init() in places
where you would prefer to use the existing event context if possible
(which is most situations)
*/
struct tevent_context *event_context_find(TALLOC_CTX *mem_ctx)
{
struct tevent_context *ev = talloc_find_parent_bytype(mem_ctx, struct tevent_context);
if (ev == NULL) {
ev = default_tevent_context;
}
if (ev == NULL) {
ev = tevent_context_init(mem_ctx);
}
return ev;
}
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