You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tdegraphics/kviewshell/plugins/djvu/libdjvu/debug.cpp

300 lines
7.4 KiB

//C- -*- C++ -*-
//C- -------------------------------------------------------------------
//C- DjVuLibre-3.5
//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
//C- Copyright (c) 2001 AT&T
//C-
//C- This software is subject to, and may be distributed under, the
//C- GNU General Public License, Version 2. The license should have
//C- accompanied the software or you may obtain a copy of the license
//C- from the Free Software Foundation at http://www.fsf.org .
//C-
//C- This program is distributed in the hope that it will be useful,
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//C- GNU General Public License for more details.
//C-
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
//C- Software authorized us to replace the original DjVu(r) Reference
//C- Library notice by the following text (see doc/lizard2002.djvu):
//C-
//C- ------------------------------------------------------------------
//C- | DjVu (r) Reference Library (v. 3.5)
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
//C- | 6,058,214 and patents pending.
//C- |
//C- | This software is subject to, and may be distributed under, the
//C- | GNU General Public License, Version 2. The license should have
//C- | accompanied the software or you may obtain a copy of the license
//C- | from the Free Software Foundation at http://www.fsf.org .
//C- |
//C- | The computer code originally released by LizardTech under this
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
//C- | ORIGINAL CODE." Subject to any third party intellectual property
//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
//C- | non-exclusive license to make, use, sell, or otherwise dispose of
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
//C- | General Public License. This grant only confers the right to
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
//C- | the extent such infringement is reasonably necessary to enable
//C- | recipient to make, have made, practice, sell, or otherwise dispose
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
//C- | any greater extent that may be necessary to utilize further
//C- | modifications or combinations.
//C- |
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//C- +------------------------------------------------------------------
//
// $Id: debug.cpp,v 1.14 2005/05/27 14:26:00 leonb Exp $
// $Name: release_3_5_15 $
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if NEED_GNUG_PRAGMAS
# pragma implementation
#endif
#include "debug.h"
#if ( DEBUGLVL > 0 )
#include "GThreads.h"
#include "GContainer.h"
#include "GString.h"
#include "GString.h"
#include "ByteStream.h"
#include "GURL.h"
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#ifdef HAVE_NAMESPACES
namespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
}
#endif
#endif
#ifndef UNIX
#ifndef WIN32
#ifndef macintosh
#define UNIX
#endif
#endif
#endif
static GCriticalSection debug_lock;
#ifdef RUNTIME_DEBUG_ONLY
static int debug_level = 0;
#else
static int debug_level = DEBUGLVL;
#endif
static int debug_id;
static FILE *debug_file;
static int debug_file_count;
#if THREADMODEL==NOTHREADS
static DjVuDebug debug_obj;
#else
static GMap<long, DjVuDebug> &
debug_map(void)
{
static GMap<long, DjVuDebug> xmap;
return xmap;
}
#endif
DjVuDebug::DjVuDebug()
: block(0), indent(0)
{
id = debug_id++;
#ifdef UNIX
if (debug_file_count++ == 0 && !debug_file)
set_debug_file(stderr);
#endif
}
DjVuDebug::~DjVuDebug()
{
#ifdef UNIX
if (--debug_file_count == 0)
{
if (debug_file && (debug_file != stderr))
fclose(debug_file);
debug_file = 0;
}
#endif
}
void
DjVuDebug::format(const char *fmt, ... )
{
if (! block)
{
va_list ap;
va_start(ap, fmt);
GUTF8String buffer(fmt,ap);
va_end(ap);
GCriticalSectionLock glock(&debug_lock);
if (debug_file)
{
fprintf(debug_file,"%s", (const char*)buffer);
fflush(debug_file);
}
#ifdef WIN32
else
{
USES_CONVERSION;
OutputDebugString(A2CT((const char *)buffer));
}
#endif
}
}
void
DjVuDebug::set_debug_level(int lvl)
{
debug_level = lvl;
}
void
DjVuDebug::set_debug_file(FILE * file)
{
GCriticalSectionLock glock(&debug_lock);
if (debug_file && (debug_file != stderr))
fclose(debug_file);
debug_file = file;
}
void
DjVuDebug::modify_indent(int rindent)
{
indent += rindent;
}
DjVuDebug&
DjVuDebug::lock(int lvl, int noindent)
{
int threads_num=1;
debug_lock.lock();
// Find Debug object
#if THREADMODEL==NOTHREADS
// Get no-threads debug object
DjVuDebug &dbg = debug_obj;
#else
// Get per-thread debug object
long threadid = (long) GThread::current();
DjVuDebug &dbg = debug_map()[threadid];
threads_num=debug_map().size();
#endif
// Check level
dbg.block = (lvl > debug_level);
// Output thread id and indentation
if (! noindent)
{
if (threads_num>1)
dbg.format("[T%d] ", dbg.id);
int ind = dbg.indent;
char buffer[257];
memset(buffer,' ', sizeof(buffer)-1);
buffer[sizeof(buffer)-1] = 0;
while (ind > (int)sizeof(buffer)-1)
{
dbg.format("%s", buffer);
ind -= sizeof(buffer)-1;
}
if (ind > 0)
{
buffer[ind] = 0;
dbg.format("%s", buffer);
}
}
// Return
return dbg;
}
void
DjVuDebug::unlock()
{
debug_lock.unlock();
}
#define OP(type, fmt) \
DjVuDebug& DjVuDebug::operator<<(type arg)\
{ format(fmt, arg); return *this; }
DjVuDebug& DjVuDebug::operator<<(bool arg)
{
format("%s", arg ? "TRUE" : "FALSE"); return *this;
}
OP(char, "%c")
OP(unsigned char, "%c")
OP(int, "%d")
OP(unsigned int, "%u")
OP(short int, "%hd")
OP(unsigned short int, "%hu")
OP(long, "%ld")
OP(unsigned long, "%lu")
OP(float, "%g")
OP(double, "%g")
OP(const void * const, "0x%08x")
DjVuDebug& DjVuDebug::operator<<(const char * const ptr)
{
GUTF8String buffer(ptr?ptr:"(null)");
if(buffer.length() > 255)
{
buffer=buffer.substr(0,252)+"...";
}
format("%s", (const char *)buffer);
return *this;
}
DjVuDebug& DjVuDebug::operator<<(const unsigned char * const ptr)
{
return operator<<( (const char *) ptr );
}
DjVuDebug& DjVuDebug::operator<<(const GUTF8String &ptr)
{
GUTF8String buffer(ptr);
if(buffer.length() > 255)
buffer=buffer.substr(0,252)+"...";
format("%s", (const char *)buffer);
return *this;
}
DjVuDebugIndent::DjVuDebugIndent(int inc)
: inc(inc)
{
DjVuDebug &dbg = DjVuDebug::lock(0,1);
dbg.modify_indent(inc);
dbg.unlock();
}
DjVuDebugIndent::~DjVuDebugIndent()
{
DjVuDebug &dbg = DjVuDebug::lock(0,1);
dbg.modify_indent(-inc);
dbg.unlock();
}
#ifdef HAVE_NAMESPACES
}
# ifndef NOT_USING_DJVU_NAMESPACE
using namespace DJVU;
# endif
#endif
#endif