// -*- C++ -*-

// ============================================================================
/**
 *  @file Test_Output.cpp
 *
 *   This file factors out common macros and other utilities used by the
 *   ACE automated regression tests.
 *
 *  @author Prashant Jain <pjain@cs.wustl.edu>
 *  @author Tim Harrison <harrison@cs.wustl.edu>
 *  @author David Levine <levine@cs.wustl.edu>
 *  @author Don Hinton <dhinton@dresystems.com>
 */
// ============================================================================

#include "test_config.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_sys_stat.h"
#include "ace/Guard_T.h"
#include "ace/Object_Manager.h"

// FUZZ: disable check_for_streams_include
#include "ace/streams.h"

#include "ace/Framework_Component.h"
#include "ace/Log_Msg.h"
#include "ace/ACE.h"

#if defined (VXWORKS)
# include "ace/OS_NS_unistd.h"
# include "ace/OS_NS_fcntl.h"
#endif /* VXWORKS */

ACE_Test_Output *ACE_Test_Output::instance_ = 0;

ACE_Test_Output::ACE_Test_Output ()
  : output_file_ (0)
{
#if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
  this->output_file_ = new OFSTREAM;
#endif /* ACE_LACKS_IOSTREAM_TOTALLY */
}

ACE_Test_Output::~ACE_Test_Output ()
{
#if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
  ACE_LOG_MSG->msg_ostream (&cerr, 0);
#endif /* ! ACE_LACKS_IOSTREAM_TOTALLY */

  ACE_LOG_MSG->clr_flags (ACE_Log_Msg::OSTREAM);
  ACE_LOG_MSG->set_flags (ACE_Log_Msg::STDERR);

#if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
  delete this->output_file_;
#endif /* ! ACE_LACKS_IOSTREAM_TOTALLY */
}

OFSTREAM *
ACE_Test_Output::output_file ()
{
  // the output_file_ is loaned to ACE_LOG_MSG
  // and something else might destroy and/or change the stream
  // so return what ACE_LOG_MSG is using.
#if defined (ACE_LACKS_IOSTREAM_TOTALLY)
  return reinterpret_cast<OFSTREAM*>(ACE_LOG_MSG->msg_ostream ());
#else
  return dynamic_cast<OFSTREAM*>(ACE_LOG_MSG->msg_ostream ());
#endif /* ACE_LACKS_IOSTREAM_TOTALLY */
}

int
ACE_Test_Output::set_output (const ACE_TCHAR *filename, int append)
{
  ACE_TCHAR temp[MAXPATHLEN + 1] = { 0 };
  // Ignore the error value since the directory may already exist.
  const ACE_TCHAR *test_dir = 0;

#if defined (ACE_WIN32) || !defined (ACE_USES_WCHAR)
  test_dir = ACE_OS::getenv (ACE_TEXT ("ACE_TEST_DIR"));
#else
  ACE_TCHAR tempenv[MAXPATHLEN + 1] = { 0 };
  char const * const test_dir_n = ACE_OS::getenv ("ACE_TEST_DIR");
  if (test_dir_n == 0)
    {
      test_dir = 0;
    }
  else
    {
      ACE_OS::strncpy (tempenv,
                       ACE_TEXT_CHAR_TO_TCHAR (test_dir_n),
                       MAXPATHLEN);
      test_dir = tempenv;
    }

#endif /* ACE_WIN32 */
  if (test_dir == 0)
    test_dir = ACE_DEFAULT_TEST_DIR;

  // This could be done with ACE_OS::sprintf() but it requires different
  // format strings for wide-char POSIX vs. narrow-char POSIX and Windows.
  // Easier to keep straight like this.
  ACE_OS::strncpy (temp, test_dir, MAXPATHLEN);
  ACE_OS::strcat (temp, ACE_LOG_DIRECTORY);
  ACE_OS::strcat (temp,
                  ACE::basename (filename, ACE_DIRECTORY_SEPARATOR_CHAR));
  ACE_OS::strcat (temp, ACE_LOG_FILE_EXT_NAME);

#if defined (ACE_VXWORKS)
  // This is the only way I could figure out to avoid a console
  // warning about opening an existing file (w/o O_CREAT), or
  // attempting to unlink a non-existent one.
  ACE_HANDLE fd = ACE_OS::open (temp,
                                O_WRONLY|O_CREAT,
                                S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
  if (fd != ERROR)
    {
      ACE_OS::close (fd);
      ACE_OS::unlink (temp);
    }
#else /* ! ACE_VXWORKS */
  // This doesn't seem to work on VxWorks if the directory doesn't
  // exist: it creates a plain file instead of a directory.  If the
  // directory does exist, it causes a weird console error message
  // about "cat: input error on standard input: Is a directory".  So,
  // VxWorks users must create the directory manually.
  ACE_OS::mkdir (ACE_LOG_DIRECTORY_FOR_MKDIR);
#endif /* ACE_VXWORKS */

# if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
  this->output_file_->open (ACE_TEXT_ALWAYS_CHAR (temp),
                            ios::out | (append ? ios::app : ios::trunc));
  if (!this->output_file_->good ())
    return -1;
#else /* when ACE_LACKS_IOSTREAM_TOTALLY */
  const ACE_TCHAR *fmode = 0;
  if (append)
    fmode = ACE_TEXT ("a");
  else
    fmode = ACE_TEXT ("w");
  this->output_file_ = ACE_OS::fopen (temp, fmode);
# endif /* ACE_LACKS_IOSTREAM_TOTALLY */

  ACE_LOG_MSG->msg_ostream (this->output_file_, 0);
  ACE_LOG_MSG->clr_flags (ACE_Log_Msg::STDERR | ACE_Log_Msg::LOGGER );
  ACE_LOG_MSG->set_flags (ACE_Log_Msg::OSTREAM);

  return 0;
}

void
ACE_Test_Output::close ()
{
  if (this->output_file_ &&
      (this->output_file_ == ACE_LOG_MSG->msg_ostream ()))
  {
#if !defined (ACE_LACKS_IOSTREAM_TOTALLY)
    this->output_file_->flush ();
    this->output_file_->close ();
#else
    ACE_OS::fflush (this->output_file_);
    ACE_OS::fclose (this->output_file_);
#endif /* !ACE_LACKS_IOSTREAM_TOTALLY */
    ACE_LOG_MSG->msg_ostream (0, 0);
  }
  // else something else changed the stream and hence should
  // have closed the output_file_
}

ACE_Test_Output *
ACE_Test_Output::instance ()
{
  if (ACE_Test_Output::instance_ == 0)
    {
      // Perform Double-Checked Locking Optimization.
      ACE_MT (ACE_GUARD_RETURN (ACE_Recursive_Thread_Mutex, ace_mon,
                                *ACE_Static_Object_Lock::instance (), 0));

      if (ACE_Test_Output::instance_ == 0)
        {
          ACE_NEW_RETURN (ACE_Test_Output::instance_,
                          ACE_Test_Output,
                          0);
          ACE_REGISTER_FRAMEWORK_COMPONENT(ACE_Test_Output, ACE_Test_Output::instance_)
        }
    }
  return ACE_Test_Output::instance_;
}

const ACE_TCHAR *
ACE_Test_Output::dll_name ()
{
  return ACE_TEXT ("Test_Output");
}

const ACE_TCHAR *
ACE_Test_Output::name ()
{
  return ACE_TEXT ("ACE_Test_Output");
}

void
ACE_Test_Output::close_singleton ()
{
  delete ACE_Test_Output::instance_;
  ACE_Test_Output::instance_ = 0;
}
