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// $Id$
// ============================================================================
//
// = LIBRARY
// examples/Log_Msg
//
// = FILENAME
// test_callback.cpp
//
// = DESCRIPTION
// This program tests the <ACE_Log_Msg> class wrt writing to user
// defined callback objects. In particular, it tests to make sure
// that nested callbacks don't deadlock.
//
// = AUTHOR
// Irfan Pyarali <irfan@cs.wustl.edu>
//
// ============================================================================
#include "ace/OS.h"
#include "ace/Log_Msg.h"
#include "ace/Log_Msg_Callback.h"
#include "ace/Log_Record.h"
ACE_RCSID(Log_Msg, test_callback, "$Id$")
class Logger : public ACE_Log_Msg_Callback
{
public:
Logger (int be_recursive = 1);
// Constructor sets whether we're testing "recursive" callback
// logging!
void log (ACE_Log_Record &log_record);
// Logging callback
void verbose (int be_verbose);
private:
int verbose_logging_;
// Flag for testing verbose logging.
int recursive_;
// Flag for testing recursive callback logging.
};
void
Logger::verbose (int be_verbose)
{
this->verbose_logging_ = be_verbose;
}
Logger::Logger (int be_recursive)
: recursive_ (be_recursive)
{
}
void
Logger::log (ACE_Log_Record &log_record)
{
int use_log_msg = 0;
if (this->recursive_)
{
this->recursive_ = 0;
use_log_msg = 1;
}
if (!this->verbose_logging_)
{
if (use_log_msg)
ACE_DEBUG ((LM_DEBUG,
"Logger::log->%s\n",
log_record.msg_data ()));
else
ACE_OS::printf ("Recursive Logger callback = %s\n",
log_record.msg_data ());
}
else
{
ACE_TCHAR verbose_msg[ACE_Log_Record::MAXVERBOSELOGMSGLEN];
int result = log_record.format_msg (ACE_LOG_MSG->local_host (),
ACE_LOG_MSG->flags (),
verbose_msg);
if (result == 0)
{
if (use_log_msg)
ACE_DEBUG ((LM_DEBUG,
"Logger::log->%s\n",
verbose_msg));
else
ACE_OS::printf ("Recursive Logger callback = %s\n",
verbose_msg);
}
}
// Cleanup on the way out.
if (use_log_msg)
this->recursive_ = 1;
}
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
// This message should show up in stderr.
ACE_DEBUG ((LM_DEBUG,
"(%t) first message\n"));
ACE_LOG_MSG->clr_flags (ACE_Log_Msg::STDERR);
// This message should not show up anywhere.
ACE_DEBUG ((LM_DEBUG,
"(%t) second message\n"));
ACE_LOG_MSG->set_flags (ACE_Log_Msg::MSG_CALLBACK);
// This message should not show up anywhere since no callback object
// has been specified.
ACE_DEBUG ((LM_DEBUG,
"(%t) third message\n"));
// Create a callback object and make it "verbose".
Logger logger;
logger.verbose (1);
// Set the callback object.
ACE_LOG_MSG->msg_callback (&logger);
// This message should show up via the Logger callback.
ACE_DEBUG ((LM_DEBUG,
"(%t) forth message\n"));
ACE_LOG_MSG->set_flags (ACE_Log_Msg::VERBOSE_LITE);
// This message should show up via the Logger callback (somewhat
// verbosely).
ACE_DEBUG ((LM_DEBUG,
"(%t) fifth message\n"));
ACE_LOG_MSG->set_flags (ACE_Log_Msg::VERBOSE);
// This message should show up via the Logger callback (really
// verbosely).
ACE_DEBUG ((LM_DEBUG,
"(%t) sixth message\n"));
logger.verbose (0);
// This message should show up via the Logger callback (not
// verbosely).
ACE_DEBUG ((LM_DEBUG,
"(%t) seventh message\n"));
ACE_LOG_MSG->set_flags (ACE_Log_Msg::STDERR);
// This message should show up in stderr and the Logger callback.
// The one from the Logger callback will not be verbose, but the one
// from stderr should be verbose.
ACE_DEBUG ((LM_DEBUG,
"(%t) eight message\n"));
return 0;
}
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