1 /* debug.h - interface to debugging functions
2 Copyright (C) 2002, 2004, 2005, 2007 g10 Code GmbH
4 This file is part of GPGME.
6 GPGME is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of
9 the License, or (at your option) any later version.
11 GPGME is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
29 /* Indirect stringification, requires __STDC__ to work. */
30 #define STRINGIFY(v) #v
31 #define XSTRINGIFY(v) STRINGIFY(v)
34 /* The debug levels. */
37 #define DEBUG_GLOBAL 2
39 #define DEBUG_ENGINE 4
41 #define DEBUG_ASSUAN 6
45 /* Remove path components from filenames (i.e. __FILE__) for cleaner
47 static inline const char *_gpgme_debug_srcname (const char *file)
50 static inline const char *
51 _gpgme_debug_srcname (const char *file)
53 const char *s = strrchr (file, '/');
57 /* Initialization helper function; see debug.c. */
58 int _gpgme_debug_set_debug_envvar (const char *value);
60 /* Called early to initialize the logging. */
61 void _gpgme_debug_subsystem_init (void);
63 /* Log the formatted string FORMAT at debug level LEVEL or higher. */
64 void _gpgme_debug (int level, const char *format, ...);
66 /* Start a new debug line in *LINE, logged at level LEVEL or higher,
67 and starting with the formatted string FORMAT. */
68 void _gpgme_debug_begin (void **helper, int level, const char *format, ...);
70 /* Add the formatted string FORMAT to the debug line *LINE. */
71 void _gpgme_debug_add (void **helper, const char *format, ...);
73 /* Finish construction of *LINE and send it to the debug output
75 void _gpgme_debug_end (void **helper);
77 void _gpgme_debug_buffer (int lvl, const char *const fmt,
78 const char *const func, const char *const buffer,
81 void _gpgme_debug_frame_begin (void);
82 void _gpgme_debug_frame_end (void);
89 #define _gpgme_debug_trace() 1
91 #define _TRACE(lvl, name, tag) \
92 int _gpgme_trace_level = lvl; \
93 const char *const _gpgme_trace_func = name; \
94 const char *const _gpgme_trace_tagname = STRINGIFY (tag); \
95 void *_gpgme_trace_tag = (void *) (uintptr_t) tag; \
96 _gpgme_debug_frame_begin ()
98 #define TRACE_BEG(lvl, name, tag) \
99 _TRACE (lvl, name, tag); \
100 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p\n", \
101 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag), 0
102 #define TRACE_BEG0(lvl, name, tag, fmt) \
103 _TRACE (lvl, name, tag); \
104 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
105 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag), 0
106 #define TRACE_BEG1(lvl, name, tag, fmt, arg1) \
107 _TRACE (lvl, name, tag); \
108 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
109 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
111 #define TRACE_BEG2(lvl, name, tag, fmt, arg1, arg2) \
112 _TRACE (lvl, name, tag); \
113 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
114 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
116 #define TRACE_BEG3(lvl, name, tag, fmt, arg1, arg2, arg3) \
117 _TRACE (lvl, name, tag); \
118 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
119 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
121 #define TRACE_BEG4(lvl, name, tag, fmt, arg1, arg2, arg3, arg4) \
122 _TRACE (lvl, name, tag); \
123 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
124 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
125 arg1, arg2, arg3, arg4), 0
126 #define TRACE_BEG5(lvl, name, tag, fmt, arg1, arg2, arg3, arg4, arg5) \
127 _TRACE (lvl, name, tag); \
128 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
129 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
130 arg1, arg2, arg3, arg4, arg5), 0
131 #define TRACE_BEG7(lvl, name, tag, fmt, arg1, arg2, arg3, arg4, \
133 _TRACE (lvl, name, tag); \
134 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
135 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
136 arg1, arg2, arg3, arg4, arg5, \
138 #define TRACE_BEG8(lvl, name, tag, fmt, arg1, arg2, arg3, arg4, \
139 arg5, arg6, arg7, arg8) \
140 _TRACE (lvl, name, tag); \
141 _gpgme_debug (_gpgme_trace_level, "%s: enter: %s=%p, " fmt "\n", \
142 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
143 arg1, arg2, arg3, arg4, arg5, \
146 #define TRACE(lvl, name, tag) \
147 _gpgme_debug_frame_begin (), \
148 _gpgme_debug (lvl, "%s: call: %s=%p\n", \
149 name, STRINGIFY (tag), (void *) (uintptr_t) tag), \
150 _gpgme_debug_frame_end (), 0
151 #define TRACE0(lvl, name, tag, fmt) \
152 _gpgme_debug_frame_begin (), \
153 _gpgme_debug (lvl, "%s: call: %s=%p, " fmt "\n", \
154 name, STRINGIFY (tag), (void *) (uintptr_t) tag), \
155 _gpgme_debug_frame_end (), 0
156 #define TRACE1(lvl, name, tag, fmt, arg1) \
157 _gpgme_debug_frame_begin (), \
158 _gpgme_debug (lvl, "%s: call: %s=%p, " fmt "\n", \
159 name, STRINGIFY (tag), (void *) (uintptr_t) tag, arg1), \
160 _gpgme_debug_frame_end (), 0
161 #define TRACE2(lvl, name, tag, fmt, arg1, arg2) \
162 _gpgme_debug_frame_begin (), \
163 _gpgme_debug (lvl, "%s: call: %s=%p, " fmt "\n", \
164 name, STRINGIFY (tag), (void *) (uintptr_t) tag, arg1, \
165 arg2), _gpgme_debug_frame_end (), 0
166 #define TRACE3(lvl, name, tag, fmt, arg1, arg2, arg3) \
167 _gpgme_debug_frame_begin (), \
168 _gpgme_debug (lvl, "%s: call: %s=%p, " fmt "\n", \
169 name, STRINGIFY (tag), (void *) (uintptr_t) tag, arg1, \
170 arg2, arg3), _gpgme_debug_frame_end (), 0
171 #define TRACE6(lvl, name, tag, fmt, arg1, arg2, arg3, arg4, arg5, arg6) \
172 _gpgme_debug_frame_begin (), \
173 _gpgme_debug (lvl, "%s: call: %s=%p, " fmt "\n", \
174 name, STRINGIFY (tag), (void *) (uintptr_t) tag, arg1, \
175 arg2, arg3, arg4, arg5, arg6), \
176 _gpgme_debug_frame_end (), 0
178 #define TRACE_ERR(err) \
179 err == 0 ? (TRACE_SUC ()) : \
180 (_gpgme_debug (_gpgme_trace_level, "%s: error: %s <%s>\n", \
181 _gpgme_trace_func, gpgme_strerror (err), \
182 gpgme_strsource (err)), _gpgme_debug_frame_end (), (err))
183 /* The cast to void suppresses GCC warnings. */
184 #define TRACE_SYSRES(res) \
185 res >= 0 ? ((void) (TRACE_SUC1 ("result=%i", res)), (res)) : \
186 (_gpgme_debug (_gpgme_trace_level, "%s: error: %s\n", \
187 _gpgme_trace_func, strerror (errno)), _gpgme_debug_frame_end (), (res))
188 #define TRACE_SYSERR(res) \
189 res == 0 ? ((void) (TRACE_SUC1 ("result=%i", res)), (res)) : \
190 (_gpgme_debug (_gpgme_trace_level, "%s: error: %s\n", \
191 _gpgme_trace_func, strerror (res)), \
192 _gpgme_debug_frame_end (), (res))
194 #define TRACE_SUC() \
195 _gpgme_debug (_gpgme_trace_level, "%s: leave\n", \
196 _gpgme_trace_func), _gpgme_debug_frame_end (), 0
197 #define TRACE_SUC0(fmt) \
198 _gpgme_debug (_gpgme_trace_level, "%s: leave: " fmt "\n", \
199 _gpgme_trace_func), _gpgme_debug_frame_end (), 0
200 #define TRACE_SUC1(fmt, arg1) \
201 _gpgme_debug (_gpgme_trace_level, "%s: leave: " fmt "\n", \
202 _gpgme_trace_func, arg1), _gpgme_debug_frame_end (), 0
203 #define TRACE_SUC2(fmt, arg1, arg2) \
204 _gpgme_debug (_gpgme_trace_level, "%s: leave: " fmt "\n", \
205 _gpgme_trace_func, arg1, arg2), _gpgme_debug_frame_end (), 0
206 #define TRACE_SUC5(fmt, arg1, arg2, arg3, arg4, arg5) \
207 _gpgme_debug (_gpgme_trace_level, "%s: leave: " fmt "\n", \
208 _gpgme_trace_func, arg1, arg2, arg3, arg4, arg5), \
209 _gpgme_debug_frame_end (), 0
210 #define TRACE_SUC6(fmt, arg1, arg2, arg3, arg4, arg5, arg6) \
211 _gpgme_debug (_gpgme_trace_level, "%s: leave: " fmt "\n", \
212 _gpgme_trace_func, arg1, arg2, arg3, arg4, arg5, arg6), \
213 _gpgme_debug_frame_end (), 0
215 #define TRACE_LOG(fmt) \
216 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
217 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag), 0
218 #define TRACE_LOG1(fmt, arg1) \
219 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
220 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
222 #define TRACE_LOG2(fmt, arg1, arg2) \
223 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
224 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
226 #define TRACE_LOG3(fmt, arg1, arg2, arg3) \
227 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
228 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
230 #define TRACE_LOG4(fmt, arg1, arg2, arg3, arg4) \
231 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
232 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
233 arg1, arg2, arg3, arg4), 0
234 #define TRACE_LOG5(fmt, arg1, arg2, arg3, arg4, arg5) \
235 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
236 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
237 arg1, arg2, arg3, arg4, arg5), 0
238 #define TRACE_LOG6(fmt, arg1, arg2, arg3, arg4, arg5, arg6) \
239 _gpgme_debug (_gpgme_trace_level, "%s: check: %s=%p, " fmt "\n", \
240 _gpgme_trace_func, _gpgme_trace_tagname, _gpgme_trace_tag, \
241 arg1, arg2, arg3, arg4, arg5, \
244 #define TRACE_LOGBUF(buf, len) \
245 _gpgme_debug_buffer (_gpgme_trace_level, "%s: check: %s", \
246 _gpgme_trace_func, buf, len)
248 #define TRACE_SEQ(hlp,fmt) \
249 _gpgme_debug_begin (&(hlp), _gpgme_trace_level, \
250 "%s: check: %s=%p, " fmt, _gpgme_trace_func, \
251 _gpgme_trace_tagname, _gpgme_trace_tag)
252 #define TRACE_ADD0(hlp,fmt) \
253 _gpgme_debug_add (&(hlp), fmt)
254 #define TRACE_ADD1(hlp,fmt,a) \
255 _gpgme_debug_add (&(hlp), fmt, (a))
256 #define TRACE_ADD2(hlp,fmt,a,b) \
257 _gpgme_debug_add (&(hlp), fmt, (a), (b))
258 #define TRACE_ADD3(hlp,fmt,a,b,c) \
259 _gpgme_debug_add (&(hlp), fmt, (a), (b), (c))
260 #define TRACE_END(hlp,fmt) \
261 _gpgme_debug_add (&(hlp), fmt); \
262 _gpgme_debug_end (&(hlp))
263 #define TRACE_ENABLED(hlp) (!!(hlp))