2 * Management of the debugging channels
4 * Copyright 2000 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but 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 library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <wine/debugtools.h>
35 #include "wine/port.h"
43 #include "wine/debug.h"
44 #include "wine/library.h"
45 #include "wine/unicode.h"
49 struct dll *next; /* linked list of dlls */
51 char * const *channels; /* array of channels */
52 int nb_channels; /* number of channels in array */
55 static struct dll *first_dll;
59 struct debug_option *next; /* next option in list */
60 unsigned char set; /* bits to set */
61 unsigned char clear; /* bits to clear */
62 char name[14]; /* channel name, or empty for "all" */
65 static struct debug_option *first_option;
66 static struct debug_option *last_option;
68 static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
70 static int cmp_name( const void *p1, const void *p2 )
72 const char *name = p1;
73 const char * const *chan = p2;
74 return strcmp( name, *chan + 1 );
77 /* apply a debug option to the channels of a given dll */
78 static void apply_option( struct dll *dll, const struct debug_option *opt )
82 char **dbch = bsearch( opt->name, dll->channels, dll->nb_channels,
83 sizeof(*dll->channels), cmp_name );
84 if (dbch) **dbch = (**dbch & ~opt->clear) | opt->set;
89 for (i = 0; i < dll->nb_channels; i++)
90 dll->channels[i][0] = (dll->channels[i][0] & ~opt->clear) | opt->set;
94 /* register a new set of channels for a dll */
95 void *__wine_dbg_register( char * const *channels, int nb )
97 struct debug_option *opt = first_option;
98 struct dll *dll = malloc( sizeof(*dll) );
101 dll->channels = channels;
102 dll->nb_channels = nb;
104 if ((dll->next = first_dll)) dll->next->prev = dll;
107 /* apply existing options to this dll */
110 apply_option( dll, opt );
118 /* unregister a set of channels; must pass the pointer obtained from wine_dbg_register */
119 void __wine_dbg_unregister( void *channel )
121 struct dll *dll = channel;
124 if (dll->next) dll->next->prev = dll->prev;
125 if (dll->prev) dll->prev->next = dll->next;
126 else first_dll = dll->next;
132 /* add a new debug option at the end of the option list */
133 void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear )
135 struct dll *dll = first_dll;
136 struct debug_option *opt;
138 if (!(opt = malloc( sizeof(*opt) ))) return;
142 strncpy( opt->name, name, sizeof(opt->name) );
143 opt->name[sizeof(opt->name)-1] = 0;
144 if (last_option) last_option->next = opt;
145 else first_option = opt;
148 /* apply option to all existing dlls */
151 apply_option( dll, opt );
156 /* parse a set of debugging option specifications and add them to the option list */
157 int wine_dbg_parse_options( const char *str )
159 char *p, *opt, *next, *options;
162 if (!(options = strdup(str))) return -1;
163 for (opt = options; opt; opt = next)
165 unsigned char set = 0, clear = 0;
167 if ((next = strchr( opt, ',' ))) *next++ = 0;
169 p = opt + strcspn( opt, "+-" );
170 if (!p[0] || !p[1]) /* bad option, skip it */
178 for (i = 0; i < sizeof(debug_classes)/sizeof(debug_classes[0]); i++)
180 int len = strlen(debug_classes[i]);
181 if (len != (p - opt)) continue;
182 if (!memcmp( opt, debug_classes[i], len )) /* found it */
184 if (*p == '+') set |= 1 << i;
185 else clear |= 1 << i;
189 if (i == sizeof(debug_classes)/sizeof(debug_classes[0])) /* bad class name, skip it */
197 if (*p == '+') set = ~0;
201 if (!strcmp( p, "all" )) p = ""; /* empty string means all */
202 wine_dbg_add_option( p, set, clear );
210 /* varargs wrapper for __wine_dbg_vprintf */
211 int wine_dbg_printf( const char *format, ... )
216 va_start(valist, format);
217 ret = __wine_dbg_vprintf( format, valist );
223 /* varargs wrapper for __wine_dbg_vlog */
224 int wine_dbg_log( int cls, const char *channel, const char *func, const char *format, ... )
229 va_start(valist, format);
230 ret = __wine_dbg_vlog( cls, channel, func, format, valist );
237 /* allocate some tmp string space */
238 /* FIXME: this is not 100% thread-safe */
239 static char *get_tmp_space( int size )
241 static char *list[32];
246 idx = interlocked_xchg_add( &pos, 1 ) % (sizeof(list)/sizeof(list[0]));
247 if ((ret = realloc( list[idx], size ))) list[idx] = ret;
252 /* default implementation of wine_dbgstr_an */
253 static const char *default_dbgstr_an( const char *str, int n )
259 if (!str) return "(null)";
260 res = get_tmp_space( 6 );
261 sprintf( res, "#%04x", LOWORD(str) );
264 if (n == -1) n = strlen(str);
266 else if (n > 200) n = 200;
267 dst = res = get_tmp_space( n * 4 + 6 );
271 unsigned char c = *str++;
274 case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
275 case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
276 case '\t': *dst++ = '\\'; *dst++ = 't'; break;
277 case '"': *dst++ = '\\'; *dst++ = '"'; break;
278 case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
280 if (c >= ' ' && c <= 126)
285 *dst++ = '0' + ((c >> 6) & 7);
286 *dst++ = '0' + ((c >> 3) & 7);
287 *dst++ = '0' + ((c >> 0) & 7);
303 /* default implementation of wine_dbgstr_wn */
304 static const char *default_dbgstr_wn( const WCHAR *str, int n )
310 if (!str) return "(null)";
311 res = get_tmp_space( 6 );
312 sprintf( res, "#%04x", LOWORD(str) );
315 if (n == -1) n = strlenW(str);
317 else if (n > 200) n = 200;
318 dst = res = get_tmp_space( n * 5 + 7 );
326 case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
327 case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
328 case '\t': *dst++ = '\\'; *dst++ = 't'; break;
329 case '"': *dst++ = '\\'; *dst++ = '"'; break;
330 case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
332 if (c >= ' ' && c <= 126)
337 sprintf(dst,"%04x",c);
354 /* default implementation of wine_dbgstr_guid */
355 static const char *default_dbgstr_guid( const struct _GUID *id )
359 if (!id) return "(null)";
360 if (!((int)id >> 16))
362 str = get_tmp_space( 12 );
363 sprintf( str, "<guid-0x%04x>", (int)id & 0xffff );
367 str = get_tmp_space( 40 );
368 sprintf( str, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
369 id->Data1, id->Data2, id->Data3,
370 id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
371 id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
377 /* default implementation of wine_dbg_vprintf */
378 static int default_dbg_vprintf( const char *format, va_list args )
380 return vfprintf( stderr, format, args );
384 /* default implementation of wine_dbg_vlog */
385 static int default_dbg_vlog( int cls, const char *channel, const char *func,
386 const char *format, va_list args )
390 if (cls < sizeof(debug_classes)/sizeof(debug_classes[0]))
391 ret += wine_dbg_printf( "%s:%s:%s ", debug_classes[cls], channel + 1, func );
393 ret += wine_dbg_vprintf( format, args );
398 /* exported function pointers so that debugging functions can be redirected at run-time */
400 const char * (*__wine_dbgstr_an)( const char * s, int n ) = default_dbgstr_an;
401 const char * (*__wine_dbgstr_wn)( const WCHAR *s, int n ) = default_dbgstr_wn;
402 const char * (*__wine_dbgstr_guid)( const struct _GUID *id ) = default_dbgstr_guid;
403 int (*__wine_dbg_vprintf)( const char *format, va_list args ) = default_dbg_vprintf;
404 int (*__wine_dbg_vlog)( int cls, const char *channel, const char *function,
405 const char *format, va_list args ) = default_dbg_vlog;
407 /* wrappers to use the function pointers */
411 const char *wine_dbgstr_guid( const struct _GUID *id )
413 return __wine_dbgstr_guid(id);
416 const char *wine_dbgstr_an( const char * s, int n )
418 return __wine_dbgstr_an(s, n);
421 const char *wine_dbgstr_wn( const WCHAR *s, int n )
423 return __wine_dbgstr_wn(s, n);
426 const char *wine_dbgstr_a( const char *s )
428 return __wine_dbgstr_an( s, -1 );
431 const char *wine_dbgstr_w( const WCHAR *s )
433 return __wine_dbgstr_wn( s, -1 );