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log.cpp

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#include "sysconfig.h"
#include "log.h"
#include "guard.h"

Log::Log(string& r_fname) {
  InitializeCriticalSection(&mMutex);
  mFileName = r_fname;
  if (mFileName != "") {  // We want to use a file
    mpFile = new ofstream(mFileName.c_str(),ios_base::out|ios_base::app);
  } else {  // No file - logging will be done to cout (console)
    mpFile = NULL;
  }
  mActive = true;
}

Log::Log(const char * fname) {
  InitializeCriticalSection(&mMutex);
  mFileName = fname;
  if (mFileName != "") { // We want to use a file
    mpFile = new ofstream(mFileName.c_str(),ios_base::out|ios_base::app);
  } else { // No file - logging will be done to cout (console)
    mpFile = NULL;
  }
  mActive = true;
}

Log::~Log() {
  if (mpFile) { // Nothing to be done for cout logs
    mpFile->close();
    delete mpFile;
  }
  DeleteCriticalSection(&mMutex);
}

void Log::SetTime() {
  time_t tm_secs = time(&tm_secs);
  struct tm *tm_time = localtime(&tm_secs);

  strftime(mTimeStamp, 40, "[%Y-%m-%d %H:%M:%S] ", tm_time);
}

void Log::Write(const string& r_msg) {
  Guard g(mMutex);
  if(mActive) {
    SetTime();
    if (mpFile)
      *mpFile << mTimeStamp << r_msg << endl;
    else
      cout << mTimeStamp << r_msg << endl;
  }
}

void Log::Write(const char *fmt, ...)
{
  Guard g(mMutex);
  if(mActive) {
    char buf[1024];
    va_list args;
    va_start (args, fmt);
    vsprintf (buf, fmt, args);
    va_end (args);
    SetTime();
    if (mpFile)
      *mpFile << mTimeStamp << buf << endl;
    else
      cout << mTimeStamp << buf << endl;
  }
}

void Log::SetActive(bool b) {
  Guard g(mMutex);
  mActive = b;
}

bool Log::IsActive() {
  Guard g(mMutex);
  return mActive;
}

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