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+//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
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