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// $Id$
#include "ace/Get_Opt.h"
#include "ace/streams.h"
#include "ace/Log_Msg.h"
#include "ace/Reactor.h"
#include "ace/Logging_Strategy.h"
ACE_RCSID(lib, Logging_Strategy, "$Id$")
// Parse the string containing all the flags and set the flags
// accordingly.
void
ACE_Logging_Strategy::tokenize (char *flag_string)
{
for (char *flag = ACE_OS::strtok (flag_string, "|");
flag != 0;
flag = ACE_OS::strtok (0, "|"))
{
if (ACE_OS::strcmp (flag, "STDERR") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::STDERR);
else if (ACE_OS::strcmp (flag, "LOGGER") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::LOGGER);
else if (ACE_OS::strcmp (flag, "OSTREAM") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::OSTREAM);
else if (ACE_OS::strcmp (flag, "VERBOSE") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::VERBOSE);
else if (ACE_OS::strcmp (flag, "VERBOSE_LITE") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::VERBOSE_LITE);
else if (ACE_OS::strcmp (flag, "SILENT") == 0)
ACE_SET_BITS (this->flags_, ACE_Log_Msg::SILENT);
}
}
int
ACE_Logging_Strategy::parse_args (int argc, char *argv[])
{
ACE_TRACE ("ACE_Logging_Strategy::parse_args");
char *temp;
this->flags_ = 0;
this->wipeout_logfile_ = 0;
this->interval_ = 0;
this->max_size_ = ACE_DEFAULT_MAX_LOGFILE_SIZE;
ACE_Get_Opt get_opt (argc, argv, "f:i:m:s:w", 0);
for (int c; (c = get_opt ()) != -1; )
{
switch (c)
{
case 'f':
temp = get_opt.optarg;
// Now tokenize the string to get all the flags
this->tokenize (temp);
break;
case 'i':
// Interval (in secs) at which logfile size is sampled.
this->interval_ = ACE_OS::strtoul (get_opt.optarg, 0, 10);
break;
case 'm':
// Maximum logfile size (in KB). Must be a non-zero value.
this->max_size_ = ACE_OS::strtoul (get_opt.optarg, 0, 10);
if (this->max_size_ == 0)
this->max_size_ = ACE_DEFAULT_MAX_LOGFILE_SIZE;
this->max_size_ <<= 10; // convert to KB
break;
case 's':
// Ensure that the OSTREAM flag is set
ACE_SET_BITS (this->flags_, ACE_Log_Msg::OSTREAM);
delete [] this->filename_;
this->filename_ = ACE::strnew (get_opt.optarg);
break;
case 'w':
// Cause the logfile to be wiped out, both on startup and on
// reconfigure.
this->wipeout_logfile_ = 1;
break;
default:
break;
}
}
return 0;
}
ACE_Logging_Strategy::ACE_Logging_Strategy (void)
{
#if defined (ACE_DEFAULT_LOGFILE)
this->filename_ = ACE::strnew (ACE_DEFAULT_LOGFILE);
#else /* ACE_DEFAULT_LOGFILE */
ACE_NEW (this->filename_, char[MAXPATHLEN + 1]);
// Get the temporary directory
if (ACE::get_temp_dir (this->filename_,
MAXPATHLEN - 7) == -1) // 7 for "logfile"
{
ACE_ERROR ((LM_ERROR,
"Temporary path too long, defaulting to current directory\n"));
this->filename_[0] = 0;
}
// Add the filename to the end
ACE_OS::strcat (this->filename_,
"logfile");
#endif /* ACE_DEFAULT_LOGFILE */
}
int
ACE_Logging_Strategy::fini (void)
{
delete [] this->filename_;
return 0;
}
int
ACE_Logging_Strategy::init (int argc, char *argv[])
{
ACE_TRACE ("ACE_Logging_Strategy::init");
// Use the options hook to parse the command line arguments.
this->parse_args (argc, argv);
// Check if any flags were specified. If none were specified, let
// the default behavior take effect.
if (this->flags_ != 0)
{
// Clear all flags
ACE_Log_Msg::instance ()->clr_flags (ACE_Log_Msg::STDERR
| ACE_Log_Msg::LOGGER
| ACE_Log_Msg::OSTREAM
| ACE_Log_Msg::VERBOSE
| ACE_Log_Msg::VERBOSE_LITE
| ACE_Log_Msg::SILENT);
// Check if OSTREAM bit is set
if (ACE_BIT_ENABLED (this->flags_,
ACE_Log_Msg::OSTREAM))
{
ofstream *output_file = 0;
// Create a new ofstream to direct output to the file.
if (wipeout_logfile_)
ACE_NEW_RETURN (output_file,
ofstream (this->filename_),
-1);
else
ACE_NEW_RETURN (output_file,
ofstream (this->filename_,
ios::app | ios::out),
-1);
// Set the <output_file> that'll be used by the rest of the
// code.
ACE_Log_Msg::instance ()->msg_ostream (output_file);
// Setup a timeout handler to perform the maximum file size
// check (if required).
if (this->interval_ > 0)
{
if (this->reactor () == 0)
this->reactor (ACE_Reactor::instance ()); // Use singleton
this->reactor ()->schedule_timer (this, 0,
ACE_Time_Value (this->interval_),
ACE_Time_Value (this->interval_));
}
}
// Now set the flags for Log_Msg
ACE_Log_Msg::instance ()->set_flags (this->flags_);
}
return ACE_LOG_MSG->open ("Logging_Strategy",
ACE_LOG_MSG->flags (),
ACE_TEXT_CHAR_TO_TCHAR (ACE_DEFAULT_LOGGER_KEY));
}
int
ACE_Logging_Strategy::handle_timeout (const ACE_Time_Value &,
const void *)
{
if ((size_t) ACE_LOG_MSG->msg_ostream ()->tellp () > this->max_size_)
{
// Lock out any other logging.
if (ACE_LOG_MSG->acquire ())
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("Cannot acquire lock!\n")),
-1);
// Close the current ostream.
ofstream *output_file =
(ofstream *) ACE_LOG_MSG->msg_ostream ();
output_file->close ();
// Save current logfile to logfile.old
if (ACE_OS::strlen (this->filename_) + 4 <= MAXPATHLEN) // 4 for ".old"
{
char backup[MAXPATHLEN+1];
ACE_OS::strcpy (backup, this->filename_);
ACE_OS::strcat (backup, ".old");
// Remove any existing .old file; ignore error as file may
// not exist.
ACE_OS::unlink (backup);
// Rename the current log file to the name of the backup log
// file.
ACE_OS::rename (this->filename_,
backup);
}
else
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("Backup file name too long; backup logfile not saved.\n")));
// Open a new log file by the same name
output_file->open (this->filename_, ios::out);
// Release the lock previously acquired.
ACE_LOG_MSG->release ();
}
return 0;
}
// The following is a "Factory" used by the ACE_Service_Config and
// svc.conf file to dynamically initialize the state of the Logging_Strategy.
ACE_FACTORY_DEFINE (ACE, ACE_Logging_Strategy)
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