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wine/library/debug.c
Patrik Stridvall 09570edaa5 MSVC compatibility fixes.
2002-08-17 01:22:59 +00:00

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/*
* Management of the debugging channels
*
* Copyright 2000 Alexandre Julliard
*
* This library 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.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "wine/debug.h"
#include "wine/library.h"
#include "wine/unicode.h"
struct dll
{
struct dll *next; /* linked list of dlls */
struct dll *prev;
char * const *channels; /* array of channels */
int nb_channels; /* number of channels in array */
};
static struct dll *first_dll;
struct debug_option
{
struct debug_option *next; /* next option in list */
unsigned char set; /* bits to set */
unsigned char clear; /* bits to clear */
char name[14]; /* channel name, or empty for "all" */
};
static struct debug_option *first_option;
static struct debug_option *last_option;
static const char * const debug_classes[] = { "fixme", "err", "warn", "trace" };
static int cmp_name( const void *p1, const void *p2 )
{
const char *name = p1;
const char * const *chan = p2;
return strcmp( name, *chan + 1 );
}
/* apply a debug option to the channels of a given dll */
static void apply_option( struct dll *dll, const struct debug_option *opt )
{
if (opt->name[0])
{
char **dbch = bsearch( opt->name, dll->channels, dll->nb_channels,
sizeof(*dll->channels), cmp_name );
if (dbch) **dbch = (**dbch & ~opt->clear) | opt->set;
}
else /* all */
{
int i;
for (i = 0; i < dll->nb_channels; i++)
dll->channels[i][0] = (dll->channels[i][0] & ~opt->clear) | opt->set;
}
}
/* register a new set of channels for a dll */
void *__wine_dbg_register( char * const *channels, int nb )
{
struct debug_option *opt = first_option;
struct dll *dll = malloc( sizeof(*dll) );
if (dll)
{
dll->channels = channels;
dll->nb_channels = nb;
dll->prev = NULL;
if ((dll->next = first_dll)) dll->next->prev = dll;
first_dll = dll;
/* apply existing options to this dll */
while (opt)
{
apply_option( dll, opt );
opt = opt->next;
}
}
return dll;
}
/* unregister a set of channels; must pass the pointer obtained from wine_dbg_register */
void __wine_dbg_unregister( void *channel )
{
struct dll *dll = channel;
if (dll)
{
if (dll->next) dll->next->prev = dll->prev;
if (dll->prev) dll->prev->next = dll->next;
else first_dll = dll->next;
free( dll );
}
}
/* add a new debug option at the end of the option list */
void wine_dbg_add_option( const char *name, unsigned char set, unsigned char clear )
{
struct dll *dll = first_dll;
struct debug_option *opt;
if (!(opt = malloc( sizeof(*opt) ))) return;
opt->next = NULL;
opt->set = set;
opt->clear = clear;
strncpy( opt->name, name, sizeof(opt->name) );
opt->name[sizeof(opt->name)-1] = 0;
if (last_option) last_option->next = opt;
else first_option = opt;
last_option = opt;
/* apply option to all existing dlls */
while (dll)
{
apply_option( dll, opt );
dll = dll->next;
}
}
/* parse a set of debugging option specifications and add them to the option list */
int wine_dbg_parse_options( const char *str )
{
char *p, *opt, *next, *options;
int i, errors = 0;
if (!(options = strdup(str))) return -1;
for (opt = options; opt; opt = next)
{
unsigned char set = 0, clear = 0;
if ((next = strchr( opt, ',' ))) *next++ = 0;
p = opt + strcspn( opt, "+-" );
if (!p[0] || !p[1]) /* bad option, skip it */
{
errors++;
continue;
}
if (p > opt)
{
for (i = 0; i < sizeof(debug_classes)/sizeof(debug_classes[0]); i++)
{
int len = strlen(debug_classes[i]);
if (len != (p - opt)) continue;
if (!memcmp( opt, debug_classes[i], len )) /* found it */
{
if (*p == '+') set |= 1 << i;
else clear |= 1 << i;
break;
}
}
if (i == sizeof(debug_classes)/sizeof(debug_classes[0])) /* bad class name, skip it */
{
errors++;
continue;
}
}
else
{
if (*p == '+') set = ~0;
else clear = ~0;
}
p++;
if (!strcmp( p, "all" )) p = ""; /* empty string means all */
wine_dbg_add_option( p, set, clear );
}
free( options );
return errors;
}
/* varargs wrapper for __wine_dbg_vprintf */
int wine_dbg_printf( const char *format, ... )
{
int ret;
va_list valist;
va_start(valist, format);
ret = __wine_dbg_vprintf( format, valist );
va_end(valist);
return ret;
}
/* varargs wrapper for __wine_dbg_vlog */
int wine_dbg_log( int cls, const char *channel, const char *func, const char *format, ... )
{
int ret;
va_list valist;
va_start(valist, format);
ret = __wine_dbg_vlog( cls, channel, func, format, valist );
va_end(valist);
return ret;
}
/* allocate some tmp string space */
/* FIXME: this is not 100% thread-safe */
static char *get_tmp_space( int size )
{
static char *list[32];
static long pos;
char *ret;
int idx;
idx = interlocked_xchg_add( &pos, 1 ) % (sizeof(list)/sizeof(list[0]));
if ((ret = realloc( list[idx], size ))) list[idx] = ret;
return ret;
}
/* default implementation of wine_dbgstr_an */
static const char *default_dbgstr_an( const char *str, int n )
{
char *dst, *res;
if (!HIWORD(str))
{
if (!str) return "(null)";
res = get_tmp_space( 6 );
sprintf( res, "#%04x", LOWORD(str) );
return res;
}
if (n == -1) n = strlen(str);
if (n < 0) n = 0;
else if (n > 200) n = 200;
dst = res = get_tmp_space( n * 4 + 6 );
*dst++ = '"';
while (n-- > 0)
{
unsigned char c = *str++;
switch (c)
{
case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
case '\t': *dst++ = '\\'; *dst++ = 't'; break;
case '"': *dst++ = '\\'; *dst++ = '"'; break;
case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
default:
if (c >= ' ' && c <= 126)
*dst++ = c;
else
{
*dst++ = '\\';
*dst++ = '0' + ((c >> 6) & 7);
*dst++ = '0' + ((c >> 3) & 7);
*dst++ = '0' + ((c >> 0) & 7);
}
}
}
*dst++ = '"';
if (*str)
{
*dst++ = '.';
*dst++ = '.';
*dst++ = '.';
}
*dst = 0;
return res;
}
/* default implementation of wine_dbgstr_wn */
static const char *default_dbgstr_wn( const WCHAR *str, int n )
{
char *dst, *res;
if (!HIWORD(str))
{
if (!str) return "(null)";
res = get_tmp_space( 6 );
sprintf( res, "#%04x", LOWORD(str) );
return res;
}
if (n == -1) n = strlenW(str);
if (n < 0) n = 0;
else if (n > 200) n = 200;
dst = res = get_tmp_space( n * 5 + 7 );
*dst++ = 'L';
*dst++ = '"';
while (n-- > 0)
{
WCHAR c = *str++;
switch (c)
{
case '\n': *dst++ = '\\'; *dst++ = 'n'; break;
case '\r': *dst++ = '\\'; *dst++ = 'r'; break;
case '\t': *dst++ = '\\'; *dst++ = 't'; break;
case '"': *dst++ = '\\'; *dst++ = '"'; break;
case '\\': *dst++ = '\\'; *dst++ = '\\'; break;
default:
if (c >= ' ' && c <= 126)
*dst++ = c;
else
{
*dst++ = '\\';
sprintf(dst,"%04x",c);
dst+=4;
}
}
}
*dst++ = '"';
if (*str)
{
*dst++ = '.';
*dst++ = '.';
*dst++ = '.';
}
*dst = 0;
return res;
}
/* default implementation of wine_dbgstr_guid */
static const char *default_dbgstr_guid( const struct _GUID *id )
{
char *str;
if (!id) return "(null)";
if (!((int)id >> 16))
{
str = get_tmp_space( 12 );
sprintf( str, "<guid-0x%04x>", (int)id & 0xffff );
}
else
{
str = get_tmp_space( 40 );
sprintf( str, "{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
id->Data1, id->Data2, id->Data3,
id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
}
return str;
}
/* default implementation of wine_dbg_vprintf */
static int default_dbg_vprintf( const char *format, va_list args )
{
return vfprintf( stderr, format, args );
}
/* default implementation of wine_dbg_vlog */
static int default_dbg_vlog( int cls, const char *channel, const char *func,
const char *format, va_list args )
{
int ret = 0;
if (cls < sizeof(debug_classes)/sizeof(debug_classes[0]))
ret += wine_dbg_printf( "%s:%s:%s ", debug_classes[cls], channel + 1, func );
if (format)
ret += __wine_dbg_vprintf( format, args );
return ret;
}
/* exported function pointers so that debugging functions can be redirected at run-time */
const char * (*__wine_dbgstr_an)( const char * s, int n ) = default_dbgstr_an;
const char * (*__wine_dbgstr_wn)( const WCHAR *s, int n ) = default_dbgstr_wn;
const char * (*__wine_dbgstr_guid)( const struct _GUID *id ) = default_dbgstr_guid;
int (*__wine_dbg_vprintf)( const char *format, va_list args ) = default_dbg_vprintf;
int (*__wine_dbg_vlog)( int cls, const char *channel, const char *function,
const char *format, va_list args ) = default_dbg_vlog;
/* wrappers to use the function pointers */
const char *wine_dbgstr_guid( const struct _GUID *id )
{
return __wine_dbgstr_guid(id);
}
const char *wine_dbgstr_an( const char * s, int n )
{
return __wine_dbgstr_an(s, n);
}
const char *wine_dbgstr_wn( const WCHAR *s, int n )
{
return __wine_dbgstr_wn(s, n);
}
const char *wine_dbgstr_a( const char *s )
{
return __wine_dbgstr_an( s, -1 );
}
const char *wine_dbgstr_w( const WCHAR *s )
{
return __wine_dbgstr_wn( s, -1 );
}
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