Tor
0.4.7.0-alpha-dev
lib
trace
debug.h
Go to the documentation of this file.
1
/* Copyright (c) 2017-2021, The Tor Project, Inc. */
2
/* See LICENSE for licensing information */
3
4
/**
5
* \file debug.h
6
* \brief Macros for debugging our event-trace support.
7
**/
8
9
#ifndef TOR_TRACE_DEBUG_H
10
#define TOR_TRACE_DEBUG_H
11
12
#ifdef USE_TRACING_INSTRUMENTATION_LOG_DEBUG
13
14
#include "
lib/log/log.h
"
15
16
/* Stringify pre-processor trick. */
17
#define XSTR(d) STR(d)
18
#define STR(s) #s
19
20
/* Send every event to a debug log level. This is useful to debug new trace
21
* events without implementing them for a specific event tracing framework.
22
*
23
* NOTE: arguments can't be used because there is no easy generic ways to learn
24
* their type and amount. It is probably doable with massive C pre-processor
25
* trickery but this is meant to be simple. */
26
27
#define TOR_TRACE_LOG_DEBUG(subsystem, event_name, ...) \
28
log_debug(LD_GENERAL, "Tracepoint \""
XSTR(event_name) "\" from " \
29
"subsystem \"" XSTR(subsystem) "\" hit.")
30
31
#else
/* !defined(USE_TRACING_INSTRUMENTATION_LOG_DEBUG) */
32
33
/* NOP the debug event. */
34
#define TOR_TRACE_LOG_DEBUG(subsystem, name, ...)
35
36
#endif
/* defined(USE_TRACING_INSTRUMENTATION_LOG_DEBUG) */
37
38
#endif
/* !defined(TOR_TRACE_DEBUG_H) */
log.h
Headers for log.c.
Generated by
1.9.1