mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2024-12-25 06:02:08 +00:00
ca09e01a13
If the OpenTracing filter is compiled using the 'OT_DEBUG=1' option, then
log messages are printed to stderr when the filter is running. In the log
one can then find (among other things) the order in which the function is
called and the value that the function returns (if it is not a void type).
Prior to applying this patch, no value returned by a function was logged.
Log output example:
[ 1] 0.038807 [OT]: flt_ot_init_per_thread(0x56365bd45ec0, 0x56365bd48210) {
[ 1] 0.038807 [OT]: ot_start(0x56365bd58920, 0x56365bd4e3a0, 0x7f561acba168:(nil)) {
[ 1] 0.038807 [OT]: } = 0
[ 1] 0.038807 [OT]: } = 0
This patch must be backported as far as 2.4.
104 lines
4.6 KiB
C
104 lines
4.6 KiB
C
/***
|
|
* Copyright 2020 HAProxy Technologies
|
|
*
|
|
* This file is part of the HAProxy OpenTracing filter.
|
|
*
|
|
* 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 2
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
#ifndef _OPENTRACING_DEBUG_H_
|
|
#define _OPENTRACING_DEBUG_H_
|
|
|
|
#ifdef DEBUG_FULL
|
|
# define DEBUG_OT
|
|
#endif
|
|
|
|
#ifdef DEBUG_OT
|
|
# ifdef DEBUG_OT_SYSTIME
|
|
# define FLT_OT_DBG_FMT(f) "[% 2d] %ld.%06ld [" FLT_OT_SCOPE "]: " f, tid, now.tv_sec, now.tv_usec
|
|
# else
|
|
# define FLT_OT_DBG_FMT(f) "[% 2d] %11.6f [" FLT_OT_SCOPE "]: " f, tid, FLT_OT_TV_UDIFF(&(flt_ot_debug.start), &now) / 1e6
|
|
# endif
|
|
# define FLT_OT_DBG_INDENT " "
|
|
# define FLT_OT_DBG(l,f, ...) \
|
|
do { \
|
|
if (!(l) || (flt_ot_debug.level & (1 << (l)))) \
|
|
(void)fprintf(stderr, FLT_OT_DBG_FMT("%.*s" f "\n"), \
|
|
dbg_indent_level, FLT_OT_DBG_INDENT, ##__VA_ARGS__); \
|
|
} while (0)
|
|
# define FLT_OT_FUNC(f, ...) do { FLT_OT_DBG(1, "%s(" f ") {", __func__, ##__VA_ARGS__); dbg_indent_level += 3; } while (0)
|
|
# define FLT_OT_RETURN(a) do { dbg_indent_level -= 3; FLT_OT_DBG(1, "}"); return a; } while (0)
|
|
# define FLT_OT_RETURN_EX(a,t,f) do { dbg_indent_level -= 3; { t _r = (a); FLT_OT_DBG(1, "} = " f, _r); return _r; } } while (0)
|
|
# define FLT_OT_RETURN_INT(a) FLT_OT_RETURN_EX((a), int, "%d")
|
|
# define FLT_OT_RETURN_PTR(a) FLT_OT_RETURN_EX((a), void *, "%p")
|
|
# define FLT_OT_DBG_IFDEF(a,b) a
|
|
# define FLT_OT_DBG_ARGS(a, ...) a, ##__VA_ARGS__
|
|
|
|
struct flt_ot_debug {
|
|
#ifndef DEBUG_OT_SYSTIME
|
|
struct timeval start;
|
|
#endif
|
|
uint8_t level;
|
|
};
|
|
|
|
|
|
extern THREAD_LOCAL int dbg_indent_level;
|
|
extern struct flt_ot_debug flt_ot_debug;
|
|
|
|
#else
|
|
|
|
# define FLT_OT_DBG(...) while (0)
|
|
# define FLT_OT_FUNC(...) while (0)
|
|
# define FLT_OT_RETURN(a) return a
|
|
# define FLT_OT_RETURN_EX(a,t,f) return a
|
|
# define FLT_OT_RETURN_INT(a) return a
|
|
# define FLT_OT_RETURN_PTR(a) return a
|
|
# define FLT_OT_DBG_IFDEF(a,b) b
|
|
# define FLT_OT_DBG_ARGS(...)
|
|
# define FLT_OT_DBG_BUF(a,b) while (0)
|
|
#endif /* DEBUG_OT */
|
|
|
|
/*
|
|
* ON | NOLOGNORM |
|
|
* -----+-----------+-------------
|
|
* 0 | 0 | no log
|
|
* 0 | 1 | no log
|
|
* 1 | 0 | log all
|
|
* 1 | 1 | log errors
|
|
* -----+-----------+-------------
|
|
*/
|
|
#define FLT_OT_LOG(l,f, ...) \
|
|
do { \
|
|
if (!(conf->tracer->logging & FLT_OT_LOGGING_ON)) \
|
|
FLT_OT_DBG(3, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
|
|
else if ((conf->tracer->logging & FLT_OT_LOGGING_NOLOGNORM) && ((l) > LOG_ERR)) \
|
|
FLT_OT_DBG(2, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
|
|
else { \
|
|
send_log(&(conf->tracer->proxy_log), (l), "[" FLT_OT_SCOPE "]: [%s] " f "\n", conf->id, ##__VA_ARGS__); \
|
|
\
|
|
FLT_OT_DBG(1, "LOG[%d]: %s", (l), logline); \
|
|
} \
|
|
} while (0)
|
|
|
|
#endif /* _OPENTRACING_DEBUG_H_ */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*
|
|
* vi: noexpandtab shiftwidth=8 tabstop=8
|
|
*/
|