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/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2021 Red Hat
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 "lib/util/debug.h"
#include "winbindd_traceid.h"
#include "tevent.h"
static void debug_traceid_trace_fde(struct tevent_fd *fde,
enum tevent_event_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_EVENT_TRACE_ATTACH:
/* Assign the current traceid id when the event is created. */
tevent_fd_set_tag(fde, debug_traceid_get());
break;
case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
/* Set the traceid id when a handler is being called. */
debug_traceid_set(tevent_fd_get_tag(fde));
break;
default:
/* Do nothing. */
break;
}
}
static void debug_traceid_trace_signal(struct tevent_signal *se,
enum tevent_event_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_EVENT_TRACE_ATTACH:
/* Assign the current traceid id when the event is created. */
tevent_signal_set_tag(se, debug_traceid_get());
break;
case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
/* Set the traceid id when a handler is being called. */
debug_traceid_set(tevent_signal_get_tag(se));
break;
default:
/* Do nothing. */
break;
}
}
static void debug_traceid_trace_timer(struct tevent_timer *timer,
enum tevent_event_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_EVENT_TRACE_ATTACH:
/* Assign the current traceid id when the event is created. */
tevent_timer_set_tag(timer, debug_traceid_get());
break;
case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
/* Set the traceid id when a handler is being called. */
debug_traceid_set(tevent_timer_get_tag(timer));
break;
default:
/* Do nothing. */
break;
}
}
static void debug_traceid_trace_immediate(struct tevent_immediate *im,
enum tevent_event_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_EVENT_TRACE_ATTACH:
/* Assign the current traceid id when the event is created. */
tevent_immediate_set_tag(im, debug_traceid_get());
break;
case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
/* Set the traceid id when a handler is being called. */
debug_traceid_set(tevent_immediate_get_tag(im));
break;
default:
/* Do nothing. */
break;
}
}
static void debug_traceid_trace_queue(struct tevent_queue_entry *qe,
enum tevent_event_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_EVENT_TRACE_ATTACH:
/* Assign the current traceid id when the event is created. */
tevent_queue_entry_set_tag(qe, debug_traceid_get());
break;
case TEVENT_EVENT_TRACE_BEFORE_HANDLER:
/* Set the traceid id when a handler is being called. */
debug_traceid_set(tevent_queue_entry_get_tag(qe));
break;
default:
/* Do nothing. */
break;
}
}
static void debug_traceid_trace_loop(enum tevent_trace_point point,
void *private_data)
{
switch (point) {
case TEVENT_TRACE_AFTER_LOOP_ONCE:
/* Reset traceid id when we got back to the loop. An event handler
* that set traceid id was fired. This tracepoint represents a place
* after the event handler was finished, we need to restore traceid
* id to 1 (out of request). 0 means not initialized.
*/
debug_traceid_set(1);
break;
default:
/* Do nothing. */
break;
}
}
void winbind_debug_traceid_setup(struct tevent_context *ev)
{
tevent_set_trace_callback(ev, debug_traceid_trace_loop, NULL);
tevent_set_trace_fd_callback(ev, debug_traceid_trace_fde, NULL);
tevent_set_trace_signal_callback(ev, debug_traceid_trace_signal, NULL);
tevent_set_trace_timer_callback(ev, debug_traceid_trace_timer, NULL);
tevent_set_trace_immediate_callback(ev, debug_traceid_trace_immediate, NULL);
tevent_set_trace_queue_callback(ev, debug_traceid_trace_queue, NULL);
debug_traceid_set(1);
}
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