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/* debug.h - interface to debugging functions
Copyright (C) 2002, 2004, 2005, 2007 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
GPGME 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#ifndef DEBUG_H
#define DEBUG_H
#include <string.h>
/* Indirect stringification, requires __STDC__ to work. */
#define STRINGIFY(v) #v
#define XSTRINGIFY(v) STRINGIFY(v)
/* The debug levels. */
#define DEBUG_INIT 1
#define DEBUG_CTX 2
#define DEBUG_ENGINE 3
#define DEBUG_DATA 4
#define DEBUG_ASSUAN 5
#define DEBUG_SYSIO 6
/* Remove path components from filenames (i.e. __FILE__) for cleaner
logs. */
static inline const char *_gpgme_debug_srcname (const char *file)
GPGME_GCC_A_PURE;
static inline const char *
_gpgme_debug_srcname (const char *file)
{
const char *s = strrchr (file, '/');
return s? s+1:file;
}
/* Called early to initialize the logging. */
void _gpgme_debug_subsystem_init (void);
/* Log the formatted string FORMAT at debug level LEVEL or higher. */
void _gpgme_debug (int level, const char *format, ...);
/* Start a new debug line in *LINE, logged at level LEVEL or higher,
and starting with the formatted string FORMAT. */
void _gpgme_debug_begin (void **helper, int level, const char *format, ...);
/* Add the formatted string FORMAT to the debug line *LINE. */
void _gpgme_debug_add (void **helper, const char *format, ...);
/* Finish construction of *LINE and send it to the debug output
stream. */
void _gpgme_debug_end (void **helper);
void _gpgme_debug_buffer (int lvl, const char *const fmt,
const char *const func, const char *const tagname,
void *tag, const char *const buffer, size_t len);
/* Trace support. */
/* FIXME: For now. */
#define _gpgme_debug_trace() 1
#define _TRACE(lvl, name, tag) \
int _gpgme_trace_level = lvl; \
const char *const _gpgme_trace_func = name; \
const char *const _gpgme_trace_tagname = STRINGIFY (tag); \
void *_gpgme_trace_tag = (void *) tag
#define TRACE_BEG(lvl, name, tag) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag), 0
#define TRACE_BEG0(lvl, name, tag, fmt) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag), 0
#define TRACE_BEG1(lvl, name, tag, fmt, arg1) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1), 0
#define TRACE_BEG2(lvl, name, tag, fmt, arg1, arg2) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2), 0
#define TRACE_BEG3(lvl, name, tag, fmt, arg1, arg2, arg3) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3), 0
#define TRACE_BEG4(lvl, name, tag, fmt, arg1, arg2, arg3, arg4) \
_TRACE (lvl, name, tag); \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): enter: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3, arg4), 0
#define TRACE(lvl, name, tag) \
_gpgme_debug (lvl, "%s (%s=0x%x): call\n", \
name, STRINGIFY (tag), (void *) tag), 0
#define TRACE0(lvl, name, tag, fmt) \
_gpgme_debug (lvl, "%s (%s=0x%x): call: " fmt "\n", \
name, STRINGIFY (tag), (void *) tag), 0
#define TRACE1(lvl, name, tag, fmt, arg1) \
_gpgme_debug (lvl, "%s (%s=0x%x): call: " fmt "\n", \
name, STRINGIFY (tag), (void *) tag, arg1), 0
#define TRACE2(lvl, name, tag, fmt, arg1, arg2) \
_gpgme_debug (lvl, "%s (%s=0x%x): call: " fmt "\n", \
name, STRINGIFY (tag), (void *) tag, arg1, arg2), 0
#define TRACE3(lvl, name, tag, fmt, arg1, arg2, arg3) \
_gpgme_debug (lvl, "%s (%s=0x%x): call: " fmt "\n", \
name, STRINGIFY (tag), (void *) tag, arg1, arg2, \
arg3), 0
#define TRACE6(lvl, name, tag, fmt, arg1, arg2, arg3, arg4, arg5, arg6) \
_gpgme_debug (lvl, "%s (%s=0x%x): call: " fmt "\n", \
name, STRINGIFY (tag), (void *) tag, arg1, arg2, arg3, \
arg4, arg5, arg6), 0
#define TRACE_ERR(err) \
err == 0 ? (TRACE_SUC ()) : \
(_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): error: %s <%s>\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, gpgme_strerror (err), \
gpgme_strsource (err)), (err))
/* The cast to void suppresses GCC warnings. */
#define TRACE_SYSRES(res) \
res >= 0 ? ((void) (TRACE_SUC1 ("result=%i", res)), (res)) : \
(_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): error: %s\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, strerror (errno)), (res))
#define TRACE_SYSERR(res) \
res == 0 ? ((void) (TRACE_SUC1 ("result=%i", res)), (res)) : \
(_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): error: %s\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, strerror (res)), (res))
#define TRACE_SUC() \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): leave\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag), 0
#define TRACE_SUC0(fmt) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): leave: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag), 0
#define TRACE_SUC1(fmt, arg1) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): leave: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1), 0
#define TRACE_SUC2(fmt, arg1, arg2) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): leave: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2), 0
#define TRACE_SUC5(fmt, arg1, arg2, arg3, arg4, arg5) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): leave: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3, arg4, arg5), 0
#define TRACE_LOG(fmt) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag), 0
#define TRACE_LOG1(fmt, arg1) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1), 0
#define TRACE_LOG2(fmt, arg1, arg2) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2), 0
#define TRACE_LOG3(fmt, arg1, arg2, arg3) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3), 0
#define TRACE_LOG4(fmt, arg1, arg2, arg3, arg4) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3, arg4), 0
#define TRACE_LOG6(fmt, arg1, arg2, arg3, arg4, arg5, arg6) \
_gpgme_debug (_gpgme_trace_level, "%s (%s=0x%x): check: " fmt "\n", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, arg1, arg2, arg3, arg4, arg5, \
arg6), 0
#define TRACE_LOGBUF(buf, len) \
_gpgme_debug_buffer (_gpgme_trace_level, "%s (%s=0x%x): check: %s", \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag, buf, len)
#define TRACE_SEQ(hlp,fmt) \
_gpgme_debug_begin (&(hlp), _gpgme_trace_level, \
"%s (%s=0x%x): check: " fmt, \
_gpgme_trace_func, _gpgme_trace_tagname, \
_gpgme_trace_tag)
#define TRACE_ADD0(hlp,fmt) \
_gpgme_debug_add (&(hlp), fmt)
#define TRACE_ADD1(hlp,fmt,a) \
_gpgme_debug_add (&(hlp), fmt, (a))
#define TRACE_ADD2(hlp,fmt,a,b) \
_gpgme_debug_add (&(hlp), fmt, (a), (b))
#define TRACE_ADD3(hlp,fmt,a,b,c) \
_gpgme_debug_add (&(hlp), fmt, (a), (b), (c))
#define TRACE_END(hlp,fmt) \
_gpgme_debug_add (&(hlp), fmt); \
_gpgme_debug_end (&(hlp))
#define TRACE_ENABLED(hlp) (!!(hlp))
#endif /* DEBUG_H */
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