You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
4.5 KiB
135 lines
4.5 KiB
/* /////////////////////////////////////////////////////////////////////////
|
|
* File: examples/cpp/backends/example.cpp.backends.file.callback/example.cpp.backends.file.callback.cpp
|
|
*
|
|
* Purpose: C++ example program for Pantheios. Demonstrates:
|
|
*
|
|
* - use of pantheios_be_file_setFilePath()
|
|
* - use of pantheios::logputs() in bail-out conditions
|
|
*
|
|
* Created: 29th November 2006
|
|
* Updated: 7th December 2010
|
|
*
|
|
* www: http://www.pantheios.org/
|
|
*
|
|
* License: This source code is placed into the public domain 2006
|
|
* by Synesis Software Pty Ltd. There are no restrictions
|
|
* whatsoever to your use of the software.
|
|
*
|
|
* This software is provided "as is", and any warranties,
|
|
* express or implied, of any kind and for any purpose, are
|
|
* disclaimed.
|
|
*
|
|
* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
|
|
#define PANTHEIOS_NO_INCLUDE_OS_AND_3PTYLIB_STRING_ACCESS // Faster compilation
|
|
|
|
/* Pantheios Header Files */
|
|
#include <pantheios/pantheios.hpp> // Pantheios C++ main header
|
|
#include <pantheios/inserters/args.hpp> // for pantheios::args
|
|
|
|
#include <pantheios/backends/bec.file.h> // be.file header
|
|
|
|
/* Standard C/C++ Header Files */
|
|
#include <exception> // for std::exception
|
|
#include <new> // for std::bad_alloc
|
|
#include <string> // for std::string
|
|
#include <stdlib.h> // for exit codes
|
|
|
|
/* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
/* Define the stock front-end process identity, so that it links when using
|
|
* fe.N, fe.simple, etc. */
|
|
PANTHEIOS_EXTERN_C const PAN_CHAR_T PANTHEIOS_FE_PROCESS_IDENTITY[] = PANTHEIOS_LITERAL_STRING("example.cpp.backends.file.callback");
|
|
|
|
/* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
#define PSTR(x) PANTHEIOS_LITERAL_STRING(x)
|
|
|
|
#ifdef PANTHEIOS_USE_WIDE_STRINGS
|
|
# define pan_strcpy_ wcscpy
|
|
#else
|
|
# define pan_strcpy_ strcpy
|
|
#endif
|
|
|
|
/* /////////////////////////////////////////////////////////////////////////
|
|
* Application-defined functions
|
|
*/
|
|
|
|
/** Cause the file to be opened when the application is starting up.
|
|
*/
|
|
PANTHEIOS_CALL(void) pantheios_be_file_getAppInit(
|
|
int /* backEndId */
|
|
, pan_be_file_init_t* init
|
|
) /* throw() */
|
|
{
|
|
init->flags |= PANTHEIOS_BE_FILE_F_TRUNCATE; // Truncate the contents
|
|
init->flags |= PANTHEIOS_BE_FILE_F_DELETE_IF_EMPTY; // Delete the file if nothing written
|
|
|
|
init->fileName = pan_strcpy_(init->buff, PSTR("callback-test-%D-%T.log"));
|
|
}
|
|
|
|
/* ////////////////////////////////////////////////////////////////////// */
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
// Use of be.file involves several steps:
|
|
//
|
|
// 1. Linking to the back-end, either explicitly or implicitly
|
|
// 2. Setting the log file path for the given back-end(s)
|
|
// 3. Making log statements
|
|
// 4. Changing the log file path for the given back-end(s)
|
|
// 5. Closing the log file for the given back-end(s)
|
|
|
|
// In this case, linking is performed either by the build makefile or the
|
|
// IDE project file, to the be.file back-end.
|
|
//
|
|
// In this case, the log file path via the application-defined callback
|
|
// function pantheios_be_file_getAppInit(), which is called during program
|
|
// initialisation, prior to main() being called. At the same time, the
|
|
// flags PANTHEIOS_BE_FILE_F_TRUNCATE and
|
|
// PANTHEIOS_BE_FILE_F_DELETE_IF_EMPTY are specified
|
|
//
|
|
// In this case, the file is closed automatically during program
|
|
// uninitialisation.
|
|
|
|
try
|
|
{
|
|
#ifndef PANTHEIOS_USE_WIDE_STRINGS
|
|
pantheios::log_DEBUG("main(", pantheios::args(argc, argv), ")");
|
|
#else /* ? !PANTHEIOS_USE_WIDE_STRINGS */
|
|
STLSOFT_SUPPRESS_UNUSED(argc); STLSOFT_SUPPRESS_UNUSED(argv);
|
|
#endif /* !PANTHEIOS_USE_WIDE_STRINGS */
|
|
|
|
pantheios::log_NOTICE(PSTR("stmt 1"));
|
|
|
|
|
|
pantheios::log_NOTICE(PSTR("stmt 2"));
|
|
|
|
|
|
pantheios::log_NOTICE(PSTR("stmt 3"));
|
|
|
|
|
|
pantheios::log_NOTICE(PSTR("stmt 4"));
|
|
|
|
pantheios::log_DEBUG(PSTR("exiting main()"));
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|
|
catch(std::bad_alloc&)
|
|
{
|
|
pantheios::log(pantheios::alert, PSTR("out of memory"));
|
|
}
|
|
catch(std::exception& x)
|
|
{
|
|
pantheios::log_CRITICAL(PSTR("Exception: "), x);
|
|
}
|
|
catch(...)
|
|
{
|
|
pantheios::logputs(pantheios::emergency, PSTR("Unexpected unknown error"));
|
|
}
|
|
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* ///////////////////////////// end of file //////////////////////////// */
|