/*
Adept MobileRobots Robotics Interface for Applications (ARIA)
Copyright (C) 2004, 2005 ActivMedia Robotics LLC
Copyright (C) 2006, 2007, 2008, 2009, 2010 MobileRobots Inc.
Copyright (C) 2011, 2012, 2013 Adept Technology

     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.

     This program 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 General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

If you wish to redistribute ARIA under different terms, contact 
Adept MobileRobots for information about a commercial version of ARIA at 
robots@mobilerobots.com or 
Adept MobileRobots, 10 Columbia Drive, Amherst, NH 03031; +1-603-881-7960
*/

#include "ArExport.h"
#include "ariaOSDef.h"
#include "ArLog.h"
#include "ArConfig.h"
#include <time.h>
#include <stdarg.h>
#include <ctype.h>
#include "ariaInternal.h"


#ifdef WIN32
#include <io.h>
#else
#include <fcntl.h>
#include <errno.h>
#include <execinfo.h>
#endif

#if defined(_ATL_VER) || defined(ARIA_MSVC_ATL_VER)
#include <atlbase.h>
#define HAVEATL 1
#endif // ifdef _ATL_VER

ArMutex ArLog::ourMutex;
ArLog::LogType ArLog::ourType=StdOut;
ArLog::LogLevel ArLog::ourLevel=ArLog::Normal;
FILE * ArLog::ourFP=0;
int ArLog::ourCharsLogged = 0;
std::string ArLog::ourFileName;
int ArLog::ourColbertStream = -1;
bool ArLog::ourLoggingTime = false;
bool ArLog::ourAlsoPrint = false;
AREXPORT void (* ArLog::colbertPrint)(int i, const char *str);

ArLog::LogType ArLog::ourConfigLogType = ArLog::StdOut;
ArLog::LogLevel ArLog::ourConfigLogLevel = ArLog::Normal;
char ArLog::ourConfigFileName[1024] = "log.txt";
bool ArLog::ourConfigLogTime = false;
bool ArLog::ourConfigAlsoPrint = false;
ArGlobalRetFunctor<bool> ArLog::ourConfigProcessFileCB(&ArLog::processFile);

#ifndef ARINTERFACE
char ArLog::ourAramConfigLogLevel[1024] = "Normal";
double ArLog::ourAramConfigLogSize = 10;
bool ArLog::ourUseAramBehavior = false;
double ArLog::ourAramLogSize = 0;
ArGlobalRetFunctor<bool> ArLog::ourAramConfigProcessFileCB(
	&ArLog::aramProcessFile);
std::string ArLog::ourAramPrefix = "";
#endif
bool ArLog::ourAramDaemonized = false;

ArFunctor1<const char *> *ArLog::ourFunctor;


AREXPORT void ArLog::logPlain(LogLevel level, const char *str)
{
  log(level, str);
}

/**
   This function is used like printf(). If the supplied level is less than
   or equal to the set level, it will be printed.
   @param level level of logging
   @param str printf() like formating string
*/
AREXPORT void ArLog::log(LogLevel level, const char *str, ...)
{
  if (level > ourLevel)
    return;
  
  //printf("logging %s\n", str);

  char buf[10000];
  char *bufPtr;
  char *timeStr;
  int timeLen = 0; // this is a value based on the standard length of
                       // ctime return
  time_t now;


  ourMutex.lock();
  // put our time in if we want it
  if (ourLoggingTime)
  {
    now = time(NULL);
    timeStr = ctime(&now);
    timeLen = 20;
    // get take just the portion of the time we want
    strncpy(buf, timeStr, timeLen);
    buf[timeLen] = '\0';
    bufPtr = &buf[timeLen];
  }
  else
    bufPtr = buf;
  va_list ptr;
  va_start(ptr, str);
  
  vsnprintf(bufPtr, sizeof(buf) - timeLen - 2, str, ptr);
  bufPtr[sizeof(buf) - timeLen - 1] = '\0';
  //vsprintf(bufPtr, str, ptr);
  // can do whatever you want with the buf now
  if (ourType == Colbert)
  {
    if (colbertPrint)		// check if we have a print routine
      (*colbertPrint)(ourColbertStream, buf);
  }
  else if (ourFP)
  {
    int written;
    if ((written = fprintf(ourFP, "%s\n", buf)) > 0)
      ourCharsLogged += written;
    fflush(ourFP);
    checkFileSize();
  }
  else if (ourType != None)
  {
    printf("%s\n", buf);
    fflush(stdout);
  }
  if (ourAlsoPrint)
    printf("%s\n", buf);

  invokeFunctor(buf);

#ifndef ARINTERFACE
  // check this down here instead of up in the if ourFP so that the log filled shows up after the printf
  if (ourUseAramBehavior && ourFP && ourAramLogSize > 0 && 
      ourCharsLogged > ourAramLogSize)
  {
    filledAramLog();
  }
#endif // ARINTERFACE

// Also send it to the VC++ debug output window...
#ifdef HAVEATL
  ATLTRACE2("%s\n", buf);
#endif
  
  va_end(ptr);
  ourMutex.unlock();
}

/**
   This function appends errorno in linux, or getLastError in windows,
   and a string indicating the problem.
   
   @param level level of logging
   @param str printf() like formating string
*/
AREXPORT void ArLog::logErrorFromOSPlain(LogLevel level, const char *str)
{
  logErrorFromOS(level, str);
}

/**
   This function appends errorno in linux, or getLastError in windows,
   and a string indicating the problem.
   
   @param level level of logging
   @param str printf() like formating string
*/
AREXPORT void ArLog::logErrorFromOS(LogLevel level, const char *str, ...)
{
  if (level > ourLevel)
    return;

#ifndef WIN32
  int err = errno;
#else
  DWORD err = GetLastError();
#endif 

  //printf("logging %s\n", str);

  char buf[10000];
  char *bufPtr;
  char *timeStr;
  int timeLen = 0; // this is a value based on the standard length of
                       // ctime return
  time_t now;


  ourMutex.lock();
  // put our time in if we want it
  if (ourLoggingTime)
  {
    now = time(NULL);
    timeStr = ctime(&now);
    timeLen = 20;
    // get take just the portion of the time we want
    strncpy(buf, timeStr, timeLen);
    buf[timeLen] = '\0';
    bufPtr = &buf[timeLen];
  }
  else
    bufPtr = buf;
  va_list ptr;
  va_start(ptr, str);
  
  vsnprintf(bufPtr, sizeof(buf) - timeLen - 2, str, ptr);
  bufPtr[sizeof(buf) - timeLen - 1] = '\0';


  char bufWithError[10200];  

#ifndef WIN32
  const char *errorString = NULL;
  if (err < sys_nerr - 1)
    errorString = sys_errlist[err];
  snprintf(bufWithError, sizeof(bufWithError) - 1, "%s | ErrorFromOSNum: %d ErrorFromOSString: %s", buf, err, errorString);
  bufWithError[sizeof(bufWithError) - 1] = '\0';
#else
  LPVOID errorString = NULL;

  FormatMessage(
        FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
        NULL,
        err,
        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
        (LPTSTR) &errorString,
        0, NULL);
 
  snprintf(bufWithError, sizeof(bufWithError) - 1, "%s | ErrorFromOSNum: %d ErrorFromOSString: %s", buf, err, (char*)errorString);
  bufWithError[sizeof(bufWithError) - 1] = '\0';

  LocalFree(errorString);
#endif

  //vsprintf(bufPtr, str, ptr);
  // can do whatever you want with the buf now
  if (ourType == Colbert)
  {
    if (colbertPrint)		// check if we have a print routine
      (*colbertPrint)(ourColbertStream, bufWithError);
  }
  else if (ourFP)
  {
    int written;
    if ((written = fprintf(ourFP, "%s\n", bufWithError)) > 0)
      ourCharsLogged += written;
    fflush(ourFP);
    checkFileSize();
  }
  else if (ourType != None)
  {
    printf("%s\n", bufWithError);
    fflush(stdout);
  }
  if (ourAlsoPrint)
    printf("%s\n", bufWithError);

  invokeFunctor(bufWithError);

#ifndef ARINTERFACE
  // check this down here instead of up in the if ourFP so that the log filled shows up after the printf
  if (ourUseAramBehavior && ourFP && ourAramLogSize > 0 && 
      ourCharsLogged > ourAramLogSize)
  {
    filledAramLog();
  }
#endif // ARINTERFACE

// Also send it to the VC++ debug output window...
#ifdef HAVEATL
  ATLTRACE2("%s\n", buf);
#endif
  
  va_end(ptr);
  ourMutex.unlock();
}


/**
   This function appends errorno in linux, or getLastError in windows,
   and a string indicating the problem.
   
   @param level level of logging
   @param str printf() like formating string
*/
AREXPORT void ArLog::logErrorFromOSPlainNoLock(LogLevel level, const char *str)
{
  logErrorFromOSNoLock(level, str);
}

/**
   This function appends errorno in linux, or getLastError in windows,
   and a string indicating the problem.
   
   @param level level of logging
   @param str printf() like formating string
*/
AREXPORT void ArLog::logErrorFromOSNoLock(LogLevel level, const char *str, ...)
{
  if (level > ourLevel)
    return;

#ifndef WIN32
  int err = errno;
#else
  DWORD err = GetLastError();
#endif 

  //printf("logging %s\n", str);

  char buf[10000];
  char *bufPtr;
  char *timeStr;
  int timeLen = 0; // this is a value based on the standard length of
                       // ctime return
  time_t now;


  // put our time in if we want it
  if (ourLoggingTime)
  {
    now = time(NULL);
    timeStr = ctime(&now);
    timeLen = 20;
    // get take just the portion of the time we want
    strncpy(buf, timeStr, timeLen);
    buf[timeLen] = '\0';
    bufPtr = &buf[timeLen];
  }
  else
    bufPtr = buf;
  va_list ptr;
  va_start(ptr, str);
  
  vsnprintf(bufPtr, sizeof(buf) - timeLen - 2, str, ptr);
  bufPtr[sizeof(buf) - timeLen - 1] = '\0';


  char bufWithError[10200];  

#ifndef WIN32
  const char *errorString = NULL;
  if (err < sys_nerr - 1)
    errorString = sys_errlist[err];
  snprintf(bufWithError, sizeof(bufWithError) - 1, "%s | ErrorFromOSNum: %d ErrorFromOSString: %s", buf, err, errorString);
  bufWithError[sizeof(bufWithError) - 1] = '\0';
#else
  LPVOID errorString = NULL;

  FormatMessage(
        FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
        NULL,
        err,
        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
        (LPTSTR) &errorString,
        0, NULL);
 
  snprintf(bufWithError, sizeof(bufWithError) - 1, "%s | ErrorFromOSNum: %d ErrorFromOSString: %s", buf, err, errorString);
  bufWithError[sizeof(bufWithError) - 1] = '\0';

  LocalFree(errorString);
#endif

  //vsprintf(bufPtr, str, ptr);
  // can do whatever you want with the buf now
  if (ourType == Colbert)
  {
    if (colbertPrint)		// check if we have a print routine
      (*colbertPrint)(ourColbertStream, bufWithError);
  }
  else if (ourFP)
  {
    int written;
    if ((written = fprintf(ourFP, "%s\n", bufWithError)) > 0)
      ourCharsLogged += written;
    fflush(ourFP);
    checkFileSize();
  }
  else if (ourType != None)
  {
    printf("%s\n", bufWithError);
    fflush(stdout);
  }
  if (ourAlsoPrint)
    printf("%s\n", bufWithError);

  invokeFunctor(bufWithError);

#ifndef ARINTERFACE
  // check this down here instead of up in the if ourFP so that the log filled shows up after the printf
  if (ourUseAramBehavior && ourFP && ourAramLogSize > 0 && 
      ourCharsLogged > ourAramLogSize)
  {
    filledAramLog();
  }
#endif // ARINTERFACE

// Also send it to the VC++ debug output window...
#ifdef HAVEATL
  ATLTRACE2("%s\n", buf);
#endif
  
  va_end(ptr);
}

/**
   Initialize the logging utility by supplying the type of logging and the
   level of logging. If the type is File, the fileName needs to be supplied.
   @param type type of Logging
   @param level level of logging
   @param fileName the name of the file for File type of logging
   @param logTime if this is true then the time a message is given will be logged
   @param alsoPrint if this is true then in addition to whatever other logging (to a file for instance) the results will also be printed
   @param printThisCall if this is true the new settings will be printed otherwise they won't
*/
AREXPORT bool ArLog::init(LogType type, LogLevel level, const char *fileName,
			  bool logTime, bool alsoPrint, bool printThisCall)
{
  ourMutex.setLogName("ArLog::ourMutex");

  ourMutex.lock();
  
  // if we weren't or won't be doing a file then close any old file
  if (ourType != File || type != File)
  {
    close();
  }
  
  if (type == StdOut)
    ourFP=stdout;
  else if (type == StdErr)
    ourFP=stderr;
  else if (type == File)
  {
    if (fileName != NULL)
    {
      if (strcmp(ourFileName.c_str(), fileName) == 0)
      {
	ArLog::logNoLock(ArLog::Terse, "ArLog::init: Continuing to log to the same file.");
      }
      else
      {
	close();
	if ((ourFP = ArUtil::fopen(fileName, "w")) == NULL)
	{
	  ArLog::logNoLock(ArLog::Terse, "ArLog::init: Could not open file %s for logging.", fileName);
	  ourMutex.unlock();
	  return(false);
	}
	ourFileName=fileName;
      }
    }
  }
  else if (type == Colbert)
  {
    colbertPrint = NULL;
    ourColbertStream = -1;	// use default stream
    if (fileName)
    {  // need to translate fileName to integer index
    }
  }
  else if (type == None)
  {

  }
  ourType=type;
  ourLevel=level;

  // environment variable overrides level
  {
    char* lev = getenv("ARLOG_LEVEL");
    if(lev)
    {
      switch(toupper(lev[0]))
      {
        case 'N':
          ourLevel = Normal;
          break;
        case 'T':
          ourLevel = Terse;
          break;
        case 'V':
          ourLevel = Verbose;
          break;
       }
    }
  }

  ourLoggingTime = logTime;
  ourAlsoPrint = alsoPrint;

  if (printThisCall)
  {
    printf("ArLog::init: ");
    
    if (ourType == StdOut)
      printf(" StdOut\t");
    else if (ourType == StdErr)
      printf(" StdErr\t");
    else if (ourType == File)
      printf(" File(%s)\t", ourFileName.c_str());
    else if (ourType == Colbert)
      printf(" Colbert\t");
    else if (ourType == None)
      printf(" None\t");
    else
      printf(" BadType\t");
    
    if (ourLevel == Terse)
      printf(" Terse\t");
    else if (ourLevel == Normal)
      printf(" Normal\t");
    else if (ourLevel == Verbose)
      printf(" Verbose\t");
    else
      printf(" BadLevel\t");
    
    if (ourLoggingTime)
      printf(" Logging Time\t");
    else
      printf(" Not logging time\t");
    
    if (ourAlsoPrint)
      printf(" Also printing\n");
    else
      printf(" Not also printing\n");
  }
  ourMutex.unlock();
  return(true);
}

AREXPORT void ArLog::close()
{
  if (ourFP && (ourType == File))
  {
    fclose(ourFP);
    ourFP=0;
    ourFileName="";
  }
}

AREXPORT void ArLog::logNoLock(LogLevel level, const char *str, ...)
{
  if (level > ourLevel)
    return;

  char buf[2048];
  char *bufPtr;
  char *timeStr;
  int timeLen = 20; // this is a value based on the standard length of
                       // ctime return
  time_t now;

  
  // put our time in if we want it
  if (ourLoggingTime)
  {
    now = time(NULL);
    timeStr = ctime(&now);
    // get take just the portion of the time we want
    strncpy(buf, timeStr, timeLen);
    buf[timeLen] = '\0';
    bufPtr = &buf[timeLen];
  }
  else
    bufPtr = buf;
  va_list ptr;
  va_start(ptr, str);
  //vsnprintf(bufPtr, sizeof(buf) - timeLen - 1, str, ptr);
  vsprintf(bufPtr, str, ptr);
  // can do whatever you want with the buf now
  if (ourType == Colbert)
  {
    if (colbertPrint)		// check if we have a print routine
      (*colbertPrint)(ourColbertStream, buf);
  }
  else if (ourFP)
  {
    int written;
    if ((written = fprintf(ourFP, "%s\n", buf)) > 0)
      ourCharsLogged += written;
    fflush(ourFP);
    checkFileSize();
  }
  else if (ourType != None)
    printf("%s\n", buf);
  if (ourAlsoPrint)
    printf("%s\n", buf);
  
  invokeFunctor(buf);

  va_end(ptr);
}

AREXPORT void ArLog::logBacktrace(LogLevel level)
{
#ifndef WIN32
  int size = 100;
  int numEntries;
  void *buffer[size];
  char **names;
  
  numEntries = backtrace(buffer, size);
  ArLog::log(ArLog::Normal, "Backtrace %d levels", numEntries);
  
  names = backtrace_symbols(buffer, numEntries);
  if (names == NULL)
    return;
  
  int i;
  for (i = 0; i < numEntries; i++)
    ArLog::log(ArLog::Normal, "%s", names[i]);
  
  free(names);
#endif
}

AREXPORT void ArLog::addToConfig(ArConfig *config)
{
  std::string section = "LogConfig";
  config->addParam(
	  ArConfigArg("LogType", (int *)&ourConfigLogType,
		      "The type of log we'll be using, 0 for StdOut, 1 for StdErr, 2 for File (and give it a file name), 3 for colbert (don't use that), and 4 for None", 
		      ArLog::StdOut, ArLog::None), 
	  section.c_str(), ArPriority::TRIVIAL);
  config->addParam(
	  ArConfigArg("LogLevel", (int *)&ourConfigLogLevel,
		      "The level of logging to do, 0 for Terse, 1 for Normal, and 2 for Verbose", 
		      ArLog::Terse, ArLog::Verbose), 
	  section.c_str(), ArPriority::TRIVIAL);
  config->addParam(
	  ArConfigArg("LogFileName", ourConfigFileName,
		      "File to log to", sizeof(ourConfigFileName)),
	  section.c_str(), ArPriority::TRIVIAL);
  config->addParam(
	  ArConfigArg("LogTime", &ourConfigLogTime,
		      "True to prefix log messages with time and date, false not to"),
	  section.c_str(), ArPriority::TRIVIAL);
  config->addParam(
	  ArConfigArg("LogAlsoPrint", &ourConfigAlsoPrint,
		      "True to also printf the message, false not to"),	  
	  section.c_str(), ArPriority::TRIVIAL);
  ourConfigProcessFileCB.setName("ArLog");
  config->addProcessFileCB(&ourConfigProcessFileCB, 200);
}

AREXPORT bool ArLog::processFile(void)
{
  if (ourConfigLogType != ourType || ourConfigLogLevel != ourLevel ||
      strcmp(ourConfigFileName, ourFileName.c_str()) != 0 || 
      ourConfigLogTime != ourLoggingTime || ourConfigAlsoPrint != ourAlsoPrint)
  {
    ArLog::logNoLock(ArLog::Normal, "Initializing log from config");
    return ArLog::init(ourConfigLogType, ourConfigLogLevel, ourConfigFileName, 
		       ourConfigLogTime, ourConfigAlsoPrint, true);
  }
  return true;
}

#ifndef ARINTERFACE
AREXPORT void ArLog::aramInit(const char *prefix, ArLog::LogLevel defaultLevel,
			      double defaultSize, bool daemonized)
{
  if (prefix == NULL || prefix[0] == '\0')
    ourAramPrefix = "";
  else
  {
    ourAramPrefix = prefix;
    if (prefix[strlen(prefix) - 1] != '/')
      ourAramPrefix += "/";
  }
  
  std::string section = "Log Config";
  Aria::getConfig()->addParam(
	  ArConfigArg("Level", ourAramConfigLogLevel,
		      "The level of logging type of log we'll be using", sizeof(ourAramConfigLogLevel)),
	  section.c_str(), ArPriority::TRIVIAL, 
	  "Choices:Terse;;Normal;;Verbose");
  Aria::getConfig()->addParam(
	  ArConfigArg("LogFileSize", &ourAramConfigLogSize,
		      "The maximum size of the log files (6 files are rotated through), 0 means no maximum", 0, 20000),
	  section.c_str(), ArPriority::TRIVIAL);

  ourUseAramBehavior = true;
  ourAramConfigProcessFileCB.setName("ArLogAram");
  Aria::getConfig()->addProcessFileCB(&ourAramConfigProcessFileCB, 210);

  if (defaultLevel == ArLog::Terse)
    sprintf(ourAramConfigLogLevel, "Terse");
  else if (defaultLevel == ArLog::Normal)
    sprintf(ourAramConfigLogLevel, "Normal");
  if (defaultLevel == ArLog::Verbose)
    sprintf(ourAramConfigLogLevel, "Verbose");

  ourAramDaemonized = daemonized;

  char buf[2048];
  snprintf(buf, sizeof(buf), "%slog1.txt", ourAramPrefix.c_str());
  ArLog::init(ArLog::File, defaultLevel, buf, true, !daemonized, true);

  if (ourAramDaemonized)
  {

    if (dup2(fileno(ourFP), fileno(stderr)) < 0)
      ArLog::logErrorFromOSNoLock(
	      ArLog::Normal, "ArLog: Error redirecting stderr to log file.");
    
    // this is is taken out since if you set this flag, the file gets
    //closed twice, then really weird stuff happens after the exec
    //ArUtil::setFileCloseOnExec(fileno(stderr), true);

    fprintf(stderr, "Stderr...\n");

    /* stdout is taken out since we don't necessarily need it and it
     * wound up at the end of the file, which got really strange

    if (dup2(fileno(ourFP), fileno(stdout)) < 0)

      ArLog::logErrorFromOSNoLock(
	      ArLog::Normal, "ArLog: Error redirecting stdout to log file.");

    // this is is taken out since if you set this flag, the file gets
    //closed twice, then really weird stuff happens after the exec
    ArUtil::setFileCloseOnExec(fileno(stdout), true);

    fprintf(stdout, "Stdout...\n");
    */
  }

  ourAramConfigLogSize  = defaultSize;  // even megabytes
  ourAramLogSize = ArMath::roundInt(ourAramConfigLogSize * 1000000);  // even megabytes
}

AREXPORT bool ArLog::aramProcessFile(void)
{
  ourMutex.lock();
  ourAramLogSize = ArMath::roundInt(ourAramConfigLogSize * 1000000);  // even megabytes
  if (strcasecmp(ourAramConfigLogLevel, "Terse") == 0)
    ourLevel = Terse;
  else if (strcasecmp(ourAramConfigLogLevel, "Verbose") == 0)
    ourLevel = Verbose;
  else if (strcasecmp(ourAramConfigLogLevel, "Normal") == 0)
    ourLevel = Normal;
  else 
  {
    ArLog::logNoLock(ArLog::Normal, 
	       "ArLog: Bad log level '%s' defaulting to Normal", 
	       ourAramConfigLogLevel);
    ourLevel = Normal;
  }
  ourMutex.unlock();
  return true;
}

AREXPORT void ArLog::filledAramLog(void)
{
  ArLog::logNoLock(ArLog::Normal, "ArLog: Log filled, starting new file");

  fclose(ourFP);

  char buf[2048];
  int i;
  for (i = 5; i > 0; i--)
  {
    snprintf(buf, sizeof(buf), "mv %slog%d.txt %slog%d.txt", 
	     ourAramPrefix.c_str(), i, ourAramPrefix.c_str(), i+1);
    system(buf);
  }

  snprintf(buf, sizeof(buf), "%slog1.txt", ourAramPrefix.c_str());
  if ((ourFP = ArUtil::fopen(ourFileName.c_str(), "w")) == NULL)
  {
    ourType = StdOut;
    ArLog::logNoLock(ArLog::Normal, 
	       "ArLog: Couldn't reopen file '%s', failing back to stdout",
	       ourFileName.c_str());
  }
  ourCharsLogged = 0;

  if (ourAramDaemonized)
  {

    if (dup2(fileno(ourFP), fileno(stderr)) < 0)
      ArLog::logErrorFromOSNoLock(
	      ArLog::Normal, "ArLog: Error redirecting stderr to log file.");

    // this is is taken out since if you set this flag, the file gets
    //closed twice, then really weird stuff happens after the exec
    //ArUtil::setFileCloseOnExec(fileno(stderr), true);

    fprintf(stderr, "Stderr...\n");
    
    /* stdout is taken out since we don't necessarily need it and it
     * wound up at the end of the file, which got really strange

    if (dup2(fileno(ourFP), fileno(stdout)) < 0)
      ArLog::logErrorFromOSNoLock(
	      ArLog::Normal, "ArLog: Error redirecting stdout to log file.");

    // this is is taken out since if you set this flag, the file gets
    //closed twice, then really weird stuff happens after the exec
    ArUtil::setFileCloseOnExec(fileno(stdout), true);

    fprintf(stdout, "Stdout...\n");
    */
  }
}

#endif // ARINTERFACE

AREXPORT void ArLog::setFunctor(ArFunctor1<const char *> *functor)
{
  ourFunctor = functor;
}

AREXPORT void ArLog::invokeFunctor(const char *message)
{
  ArFunctor1<const char *> *functor;
  functor = ourFunctor;
  if (functor != NULL)
    functor->invoke(message);
}

AREXPORT void ArLog::checkFileSize(void)
{
  if (ourAramDaemonized)
  {
    long size;
    size = ArUtil::sizeFile(ourFileName);
    if (size > 0 && size > ourCharsLogged)
    {
      ourCharsLogged = size;
    }
  }
}

AREXPORT void ArLog::internalForceLockup(void)
{
  ArLog::log(ArLog::Terse, "ArLog: forcing internal lockup");
  ourMutex.lock();
}