413 lines
11 KiB
C
413 lines
11 KiB
C
/*
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* Management of the debugging channels
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*
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* Copyright 2000 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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#include "wine/debug.h"
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#include "wine/library.h"
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#include "wine/unicode.h"
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struct dll
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{
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struct dll *next; /* linked list of dlls */
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struct dll *prev;
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char * const *channels; /* array of channels */
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int nb_channels; /* number of channels in array */
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};
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static struct dll *first_dll;
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struct debug_option
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{
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struct debug_option *next; /* next option in list */
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unsigned char set; /* bits to set */
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unsigned char clear; /* bits to clear */
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char name[14]; /* channel name, or empty for "all" */
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};
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static struct debug_option *first_option;
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static struct debug_option *last_option;
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static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
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static int cmp_name( const void *p1, const void *p2 )
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{
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const char *name = p1;
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const char * const *chan = p2;
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return strcmp( name, *chan + 1 );
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}
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/* apply a debug option to the channels of a given dll */
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static void apply_option( struct dll *dll, const struct debug_option *opt )
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{
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if (opt->name[0])
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{
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char **dbch = bsearch( opt->name, dll->channels, dll->nb_channels,
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sizeof(*dll->channels), cmp_name );
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if (dbch) **dbch = (**dbch & ~opt->clear) | opt->set;
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}
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else /* all */
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{
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int i;
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for (i = 0; i < dll->nb_channels; i++)
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dll->channels[i][0] = (dll->channels[i][0] & ~opt->clear) | opt->set;
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}
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}
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/* register a new set of channels for a dll */
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void *__wine_dbg_register( char * const *channels, int nb )
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{
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struct debug_option *opt = first_option;
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struct dll *dll = malloc( sizeof(*dll) );
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if (dll)
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{
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dll->channels = channels;
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dll->nb_channels = nb;
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dll->prev = NULL;
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if ((dll->next = first_dll)) dll->next->prev = dll;
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first_dll = dll;
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/* apply existing options to this dll */
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while (opt)
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{
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apply_option( dll, opt );
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opt = opt->next;
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}
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}
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return dll;
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}
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/* unregister a set of channels; must pass the pointer obtained from wine_dbg_register */
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void __wine_dbg_unregister( void *channel )
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{
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struct dll *dll = channel;
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if (dll)
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{
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if (dll->next) dll->next->prev = dll->prev;
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if (dll->prev) dll->prev->next = dll->next;
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else first_dll = dll->next;
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free( dll );
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}
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}
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/* add a new debug option at the end of the option list */
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void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear )
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{
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struct dll *dll = first_dll;
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struct debug_option *opt;
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if (!(opt = malloc( sizeof(*opt) ))) return;
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opt->next = NULL;
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opt->set = set;
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opt->clear = clear;
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strncpy( opt->name, name, sizeof(opt->name) );
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opt->name[sizeof(opt->name)-1] = 0;
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if (last_option) last_option->next = opt;
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else first_option = opt;
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last_option = opt;
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/* apply option to all existing dlls */
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while (dll)
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{
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apply_option( dll, opt );
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dll = dll->next;
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}
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}
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/* parse a set of debugging option specifications and add them to the option list */
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int wine_dbg_parse_options( const char *str )
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{
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char *p, *opt, *next, *options;
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int i, errors = 0;
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if (!(options = strdup(str))) return -1;
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for (opt = options; opt; opt = next)
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{
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unsigned char set = 0, clear = 0;
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if ((next = strchr( opt, ',' ))) *next++ = 0;
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p = opt + strcspn( opt, "+-" );
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if (!p[0] || !p[1]) /* bad option, skip it */
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{
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errors++;
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continue;
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}
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if (p > opt)
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{
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for (i = 0; i < sizeof(debug_classes)/sizeof(debug_classes[0]); i++)
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{
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int len = strlen(debug_classes[i]);
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if (len != (p - opt)) continue;
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if (!memcmp( opt, debug_classes[i], len )) /* found it */
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{
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if (*p == '+') set |= 1 << i;
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else clear |= 1 << i;
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break;
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}
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}
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if (i == sizeof(debug_classes)/sizeof(debug_classes[0])) /* bad class name, skip it */
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{
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errors++;
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continue;
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}
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}
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else
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{
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if (*p == '+') set = ~0;
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else clear = ~0;
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}
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p++;
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if (!strcmp( p, "all" )) p = ""; /* empty string means all */
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wine_dbg_add_option( p, set, clear );
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}
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free( options );
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return errors;
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}
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/* varargs wrapper for __wine_dbg_vprintf */
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int wine_dbg_printf( const char *format, ... )
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{
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int ret;
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va_list valist;
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va_start(valist, format);
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ret = __wine_dbg_vprintf( format, valist );
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va_end(valist);
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return ret;
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}
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/* varargs wrapper for __wine_dbg_vsprintf */
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const char *wine_dbg_sprintf( const char *format, ... )
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{
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const char *ret;
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va_list valist;
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va_start(valist, format);
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ret = __wine_dbg_vsprintf( format, valist );
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va_end(valist);
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return ret;
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}
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/* varargs wrapper for __wine_dbg_vlog */
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int wine_dbg_log( unsigned int cls, const char *channel, const char *func, const char *format, ... )
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{
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int ret;
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va_list valist;
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va_start(valist, format);
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ret = __wine_dbg_vlog( cls, channel, func, format, valist );
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va_end(valist);
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return ret;
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}
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/* allocate some tmp string space */
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/* FIXME: this is not 100% thread-safe */
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static char *get_tmp_space( int size )
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{
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static char *list[32];
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static long pos;
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char *ret;
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int idx;
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idx = interlocked_xchg_add( &pos, 1 ) % (sizeof(list)/sizeof(list[0]));
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if ((ret = realloc( list[idx], size ))) list[idx] = ret;
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return ret;
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}
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/* default implementation of wine_dbgstr_an */
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static const char *default_dbgstr_an( const char *str, int n )
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{
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char *dst, *res;
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if (!HIWORD(str))
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{
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if (!str) return "(null)";
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res = get_tmp_space( 6 );
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sprintf( res, "#%04x", LOWORD(str) );
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return res;
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}
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if (n == -1) n = strlen(str);
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if (n < 0) n = 0;
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else if (n > 200) n = 200;
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dst = res = get_tmp_space( n * 4 + 6 );
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*dst++ = '"';
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while (n-- > 0)
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{
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unsigned char c = *str++;
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switch (c)
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{
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case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
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case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
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case '\t': *dst++ = '\\'; *dst++ = 't'; break;
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case '"': *dst++ = '\\'; *dst++ = '"'; break;
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case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
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default:
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if (c >= ' ' && c <= 126)
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*dst++ = c;
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else
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{
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*dst++ = '\\';
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*dst++ = '0' + ((c >> 6) & 7);
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*dst++ = '0' + ((c >> 3) & 7);
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*dst++ = '0' + ((c >> 0) & 7);
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}
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}
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}
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*dst++ = '"';
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if (*str)
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{
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*dst++ = '.';
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*dst++ = '.';
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*dst++ = '.';
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}
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*dst = 0;
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return res;
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}
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/* default implementation of wine_dbgstr_wn */
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static const char *default_dbgstr_wn( const WCHAR *str, int n )
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{
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char *dst, *res;
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if (!HIWORD(str))
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{
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if (!str) return "(null)";
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res = get_tmp_space( 6 );
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sprintf( res, "#%04x", LOWORD(str) );
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return res;
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}
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if (n == -1) n = strlenW(str);
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if (n < 0) n = 0;
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else if (n > 200) n = 200;
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dst = res = get_tmp_space( n * 5 + 7 );
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*dst++ = 'L';
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*dst++ = '"';
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while (n-- > 0)
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{
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WCHAR c = *str++;
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switch (c)
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{
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case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
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case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
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case '\t': *dst++ = '\\'; *dst++ = 't'; break;
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case '"': *dst++ = '\\'; *dst++ = '"'; break;
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case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
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default:
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if (c >= ' ' && c <= 126)
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*dst++ = c;
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else
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{
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*dst++ = '\\';
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sprintf(dst,"%04x",c);
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dst+=4;
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}
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}
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}
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*dst++ = '"';
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if (*str)
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{
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*dst++ = '.';
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*dst++ = '.';
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*dst++ = '.';
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}
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*dst = 0;
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return res;
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}
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/* default implementation of wine_dbg_vsprintf */
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static const char *default_dbg_vsprintf( const char *format, va_list args )
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{
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static const int max_size = 200;
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char *res = get_tmp_space( max_size );
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int len = vsnprintf( res, max_size, format, args );
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if (len == -1 || len >= max_size) res[max_size-1] = 0;
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return res;
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}
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/* default implementation of wine_dbg_vprintf */
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static int default_dbg_vprintf( const char *format, va_list args )
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{
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return vfprintf( stderr, format, args );
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}
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/* default implementation of wine_dbg_vlog */
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static int default_dbg_vlog( unsigned int cls, const char *channel, const char *func,
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const char *format, va_list args )
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{
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int ret = 0;
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if (cls < sizeof(debug_classes)/sizeof(debug_classes[0]))
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ret += wine_dbg_printf( "%s:%s:%s ", debug_classes[cls], channel + 1, func );
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if (format)
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ret += __wine_dbg_vprintf( format, args );
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return ret;
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}
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/* exported function pointers so that debugging functions can be redirected at run-time */
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const char * (*__wine_dbgstr_an)( const char * s, int n ) = default_dbgstr_an;
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const char * (*__wine_dbgstr_wn)( const WCHAR *s, int n ) = default_dbgstr_wn;
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const char * (*__wine_dbg_vsprintf)( const char *format, va_list args ) = default_dbg_vsprintf;
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int (*__wine_dbg_vprintf)( const char *format, va_list args ) = default_dbg_vprintf;
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int (*__wine_dbg_vlog)( unsigned int cls, const char *channel, const char *function,
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const char *format, va_list args ) = default_dbg_vlog;
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/* wrappers to use the function pointers */
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const char *wine_dbgstr_an( const char * s, int n )
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{
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return __wine_dbgstr_an(s, n);
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}
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const char *wine_dbgstr_wn( const WCHAR *s, int n )
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{
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return __wine_dbgstr_wn(s, n);
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}
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const char *wine_dbgstr_a( const char *s )
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{
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return __wine_dbgstr_an( s, -1 );
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}
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const char *wine_dbgstr_w( const WCHAR *s )
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{
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return __wine_dbgstr_wn( s, -1 );
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}
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