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/port.h"
30 #include "wine/debug.h"
31 #include "wine/library.h"
32 #include "wine/unicode.h"
36 struct dll *next; /* linked list of dlls */
38 char * const *channels; /* array of channels */
39 int nb_channels; /* number of channels in array */
42 static struct dll *first_dll;
46 struct debug_option *next; /* next option in list */
47 unsigned char set; /* bits to set */
48 unsigned char clear; /* bits to clear */
49 char name[14]; /* channel name, or empty for "all" */
52 static struct debug_option *first_option;
53 static struct debug_option *last_option;
55 static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
57 static int cmp_name( const void *p1, const void *p2 )
59 const char *name = p1;
60 const char * const *chan = p2;
61 return strcmp( name, *chan + 1 );
64 /* apply a debug option to the channels of a given dll */
65 static void apply_option( struct dll *dll, const struct debug_option *opt )
69 char **dbch = bsearch( opt->name, dll->channels, dll->nb_channels,
70 sizeof(*dll->channels), cmp_name );
71 if (dbch) **dbch = (**dbch & ~opt->clear) | opt->set;
76 for (i = 0; i < dll->nb_channels; i++)
77 dll->channels[i][0] = (dll->channels[i][0] & ~opt->clear) | opt->set;
81 /* register a new set of channels for a dll */
82 void *__wine_dbg_register( char * const *channels, int nb )
84 struct debug_option *opt = first_option;
85 struct dll *dll = malloc( sizeof(*dll) );
88 dll->channels = channels;
89 dll->nb_channels = nb;
91 if ((dll->next = first_dll)) dll->next->prev = dll;
94 /* apply existing options to this dll */
97 apply_option( dll, opt );
105 /* unregister a set of channels; must pass the pointer obtained from wine_dbg_register */
106 void __wine_dbg_unregister( void *channel )
108 struct dll *dll = channel;
111 if (dll->next) dll->next->prev = dll->prev;
112 if (dll->prev) dll->prev->next = dll->next;
113 else first_dll = dll->next;
119 /* add a new debug option at the end of the option list */
120 void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear )
122 struct dll *dll = first_dll;
123 struct debug_option *opt;
125 if (!(opt = malloc( sizeof(*opt) ))) return;
129 strncpy( opt->name, name, sizeof(opt->name) );
130 opt->name[sizeof(opt->name)-1] = 0;
131 if (last_option) last_option->next = opt;
132 else first_option = opt;
135 /* apply option to all existing dlls */
138 apply_option( dll, opt );
143 /* parse a set of debugging option specifications and add them to the option list */
144 int wine_dbg_parse_options( const char *str )
146 char *p, *opt, *next, *options;
149 if (!(options = strdup(str))) return -1;
150 for (opt = options; opt; opt = next)
152 unsigned char set = 0, clear = 0;
154 if ((next = strchr( opt, ',' ))) *next++ = 0;
156 p = opt + strcspn( opt, "+-" );
157 if (!p[0] || !p[1]) /* bad option, skip it */
165 for (i = 0; i < sizeof(debug_classes)/sizeof(debug_classes[0]); i++)
167 int len = strlen(debug_classes[i]);
168 if (len != (p - opt)) continue;
169 if (!memcmp( opt, debug_classes[i], len )) /* found it */
171 if (*p == '+') set |= 1 << i;
172 else clear |= 1 << i;
176 if (i == sizeof(debug_classes)/sizeof(debug_classes[0])) /* bad class name, skip it */
184 if (*p == '+') set = ~0;
188 if (!strcmp( p, "all" )) p = ""; /* empty string means all */
189 wine_dbg_add_option( p, set, clear );
195 /* varargs wrapper for __wine_dbg_vprintf */
196 int wine_dbg_printf( const char *format, ... )
201 va_start(valist, format);
202 ret = __wine_dbg_vprintf( format, valist );
208 /* varargs wrapper for __wine_dbg_vlog */
209 int wine_dbg_log( int cls, const char *channel, const char *func, const char *format, ... )
214 va_start(valist, format);
215 ret = __wine_dbg_vlog( cls, channel, func, format, valist );
221 /* allocate some tmp string space */
222 /* FIXME: this is not 100% thread-safe */
223 static char *get_tmp_space( int size )
225 static char *list[32];
230 idx = interlocked_xchg_add( &pos, 1 ) % (sizeof(list)/sizeof(list[0]));
231 if ((ret = realloc( list[idx], size ))) list[idx] = ret;
236 /* default implementation of wine_dbgstr_an */
237 static const char *default_dbgstr_an( const char *str, int n )
243 if (!str) return "(null)";
244 res = get_tmp_space( 6 );
245 sprintf( res, "#%04x", LOWORD(str) );
248 if (n == -1) n = strlen(str);
250 else if (n > 200) n = 200;
251 dst = res = get_tmp_space( n * 4 + 6 );
255 unsigned char c = *str++;
258 case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
259 case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
260 case '\t': *dst++ = '\\'; *dst++ = 't'; break;
261 case '"': *dst++ = '\\'; *dst++ = '"'; break;
262 case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
264 if (c >= ' ' && c <= 126)
269 *dst++ = '0' + ((c >> 6) & 7);
270 *dst++ = '0' + ((c >> 3) & 7);
271 *dst++ = '0' + ((c >> 0) & 7);
287 /* default implementation of wine_dbgstr_wn */
288 static const char *default_dbgstr_wn( const WCHAR *str, int n )
294 if (!str) return "(null)";
295 res = get_tmp_space( 6 );
296 sprintf( res, "#%04x", LOWORD(str) );
299 if (n == -1) n = strlenW(str);
301 else if (n > 200) n = 200;
302 dst = res = get_tmp_space( n * 5 + 7 );
310 case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
311 case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
312 case '\t': *dst++ = '\\'; *dst++ = 't'; break;
313 case '"': *dst++ = '\\'; *dst++ = '"'; break;
314 case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
316 if (c >= ' ' && c <= 126)
321 sprintf(dst,"%04x",c);
338 /* default implementation of wine_dbgstr_guid */
339 static const char *default_dbgstr_guid( const struct _GUID *id )
343 if (!id) return "(null)";
344 if (!((int)id >> 16))
346 str = get_tmp_space( 12 );
347 sprintf( str, "<guid-0x%04x>", (int)id & 0xffff );
351 str = get_tmp_space( 40 );
352 sprintf( str, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
353 id->Data1, id->Data2, id->Data3,
354 id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
355 id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
361 /* default implementation of wine_dbg_vprintf */
362 static int default_dbg_vprintf( const char *format, va_list args )
364 return vfprintf( stderr, format, args );
368 /* default implementation of wine_dbg_vlog */
369 static int default_dbg_vlog( int cls, const char *channel, const char *func,
370 const char *format, va_list args )
374 if (cls < sizeof(debug_classes)/sizeof(debug_classes[0]))
375 ret += wine_dbg_printf( "%s:%s:%s ", debug_classes[cls], channel + 1, func );
377 ret += __wine_dbg_vprintf( format, args );
382 /* exported function pointers so that debugging functions can be redirected at run-time */
384 const char * (*__wine_dbgstr_an)( const char * s, int n ) = default_dbgstr_an;
385 const char * (*__wine_dbgstr_wn)( const WCHAR *s, int n ) = default_dbgstr_wn;
386 const char * (*__wine_dbgstr_guid)( const struct _GUID *id ) = default_dbgstr_guid;
387 int (*__wine_dbg_vprintf)( const char *format, va_list args ) = default_dbg_vprintf;
388 int (*__wine_dbg_vlog)( int cls, const char *channel, const char *function,
389 const char *format, va_list args ) = default_dbg_vlog;
391 /* wrappers to use the function pointers */
393 const char *wine_dbgstr_guid( const struct _GUID *id )
395 return __wine_dbgstr_guid(id);
398 const char *wine_dbgstr_an( const char * s, int n )
400 return __wine_dbgstr_an(s, n);
403 const char *wine_dbgstr_wn( const WCHAR *s, int n )
405 return __wine_dbgstr_wn(s, n);
408 const char *wine_dbgstr_a( const char *s )
410 return __wine_dbgstr_an( s, -1 );
413 const char *wine_dbgstr_w( const WCHAR *s )
415 return __wine_dbgstr_wn( s, -1 );