int fb_cd(const char *newdir){
if(strlen(newdir)>=256)return ERROR_FILENAME_TOO_LONG;
if(fsaccess_IsDirPresent( newdir )==0)return ERROR_NOT_A_DIRECTORY;
char *cd =currentDirectory;
while((*cd++ = *newdir++));
return 0;
}
/*!
* \brief Open the current log file.
*
* \return the file descriptor or -1 if open failed.
*/
static int prv_xopen_current_logfile( void )
{
int fd_current_logfile;
struct tm *pxDate;
// TRACE_COM2( "open logfile begin==%d", xcptime_LocalTime );
while( 1 )
{
fd_current_logfile = -1; // Init to default value.
/* Open the log file. */
if( '\0' != *acLogFileName )
{ // If we have an active current log file, simply open it in append mode.
fd_current_logfile = open( acLogFileName, O_APPEND );
// Check if the max file size has been reached.
if( -1 != fd_current_logfile )
{
if( DATALOG_LOGFILE_MAXSIZE <= fsaccess_file_get_size( fd_current_logfile ) )
{ // The current log file has reached the max size.
// Get the current time in the "YYYYMMDDHHMMSSMS" string format.
v_cptime_GetDateInFatStringFormat( pcTempoDate );
// Set the file date.
nav_file_dateset( (FS_STRING)pcTempoDate, FS_DATE_LAST_WRITE );
close( fd_current_logfile ); // Close the file.
*acLogFileName = '\0'; // Reset the current log file name.
continue; // Do another loop to create/open a new file.
}
}
else
{ // The file has been removed.
*acLogFileName = '\0'; // Reset the current log file name.
continue; // Do another loop to create/open a new file.
}
}
else
{ // Create a new log file.
// Get the broken-down representation of the current date.
pxDate = gmtime( &xcptime_LocalTime );
// Build the filename: mmddyy_hhmm.log
// WARNING: pxDate->tm_year == number of years since 1900.
// For years >= 2000, we'll display the last 2 digits only.
if( pxDate->tm_year >= 100 )
pxDate->tm_year -= 100;
sprintf( acLogFileName, "%s/%.2d%.2d%.2d_%.2d%.2d.log",
pcStringCurrentLogDirectoryName, pxDate->tm_mon +1, pxDate->tm_mday,
pxDate->tm_year, pxDate->tm_hour, pxDate->tm_min );
NAKED_TRACE_COM2( "Creating log file %s", acLogFileName );
// Create the log file only if the /LOG directory exists.
if( true == fsaccess_IsDirPresent( (const char *)pcStringCurrentLogDirectoryName ) )
{ // The LOG/ directory exists.
// Create and open the file.
// if the file already exists, then the file size is reset.
fd_current_logfile = open( acLogFileName, (O_CREAT|O_WRONLY) );
// previous file is closed, send a mail
if ( *acPreviousLogFileName != '\0' )
{
// post alarm to SMTP task
v_SMTP_Post(acPreviousLogFileName, acPreviousLogFileName);
}
strncpy(acPreviousLogFileName, acLogFileName, strlen(acLogFileName));
}
}
if( -1 == fd_current_logfile )
{ // The open failed. We're not in maintenance mode.
// Just remove the oldest log file: TODO
NAKED_TRACE_COM2( "Failed opening the current log file %s", acLogFileName );
/*########### TEMPORARY #############*/
break;
/*###################################*/
}
else break;
}
return( fd_current_logfile );
}