/* Scan starter thread */
static void *scan_starter( void *arg )
{
int rc;
DisplayLog( LVL_VERB, FSSCAN_TAG, "Launching FS Scan starter thread" );
if ( fsscan_flags & FLAG_ONCE )
{
rc = Robinhood_CheckScanDeadlines( );
if ( rc )
DisplayLog( LVL_CRIT, FSSCAN_TAG, "Error %d checking FS Scan status", rc );
pthread_exit( NULL );
return NULL;
}
/* not a one-shot mode */
while ( !terminate )
{
rc = Robinhood_CheckScanDeadlines( );
if ( rc )
DisplayLog( LVL_CRIT, FSSCAN_TAG, "Error %d checking FS Scan status", rc );
/* attente de la boucle suivante */
rh_sleep( fs_scan_config.spooler_check_interval );
}
return NULL;
}
/*
* This function is blocking as long as the lock file is present.
* Optionaly updates an action timestamp, at each test.
*/
void TestLockFile( time_t * p_last_action )
{
while ( access( global_config.lock_file, F_OK ) == 0 )
{
if ( p_last_action )
*p_last_action = time( NULL );
DisplayLog( LVL_MAJOR, "LOCK", "Lock file %s detected, waiting %ds",
global_config.lock_file, TEST_LOCK_FILE_PERIOD );
rh_sleep( TEST_LOCK_FILE_PERIOD );
}
}
static void *signal_handler_thr( void *arg )
{
struct sigaction act_sigterm;
struct sigaction act_sigusr;
/* create signal handlers */
memset( &act_sigterm, 0, sizeof( act_sigterm ) );
act_sigterm.sa_flags = 0;
act_sigterm.sa_handler = terminate_handler;
if ( sigaction( SIGTERM, &act_sigterm, NULL ) == -1
|| sigaction( SIGINT, &act_sigterm, NULL ) == -1 )
{
DisplayLog( LVL_CRIT, SIGHDL_TAG,
"Error while setting signal handlers for SIGTERM and SIGINT: %s",
strerror( errno ) );
if (options.diff_arg.db_tag != NULL && ensure_db_access())
{
fprintf(stderr, "Cleaning diff table...\n");
ListMgr_DestroyTag(&lmgr, options.diff_arg.db_tag);
}
exit( 1 );
}
else
DisplayLog( LVL_EVENT, SIGHDL_TAG,
"Signals SIGTERM and SIGINT (daemon shutdown) are ready to be used" );
memset( &act_sigusr, 0, sizeof( act_sigusr ) );
act_sigusr.sa_flags = 0;
act_sigusr.sa_handler = usr_handler;
if ( sigaction( SIGUSR1, &act_sigusr, NULL ) == -1 )
{
DisplayLog( LVL_CRIT, SIGHDL_TAG, "Error while setting signal handlers for SIGUSR1: %s",
strerror( errno ) );
if (options.diff_arg.db_tag != NULL && ensure_db_access())
{
fprintf(stderr, "Cleaning diff table...\n");
ListMgr_DestroyTag(&lmgr, options.diff_arg.db_tag);
/* make sure written data is flushed */
if (options.diff_arg.lovea_file)
fflush(options.diff_arg.lovea_file);
if (options.diff_arg.fid_remap_file)
fflush(options.diff_arg.fid_remap_file);
}
exit( 1 );
}
else
DisplayLog( LVL_EVENT, SIGHDL_TAG, "Signal SIGUSR1 (stats dump) is ready to be used" );
/* signal flag checking loop */
while ( 1 )
{
/* check for signal every second */
rh_sleep( 1 );
if ( terminate_sig != 0 )
{
if ( terminate_sig == SIGTERM )
DisplayLog( LVL_MAJOR, SIGHDL_TAG, "SIGTERM received: performing clean daemon shutdown" );
else if ( terminate_sig == SIGINT )
DisplayLog( LVL_MAJOR, SIGHDL_TAG, "SIGINT received: performing clean daemon shutdown" );
FlushLogs( );
/* stop FS scan (blocking) */
FSScan_Terminate( );
FlushLogs( );
/* drop pipeline waiting operations and terminate threads */
EntryProcessor_Terminate( FALSE );
FlushLogs( );
#ifdef _HSM_LITE
/* shutdown backend access */
Backend_Stop();
#endif
DisplayLog( LVL_MAJOR, SIGHDL_TAG, "Exiting." );
FlushLogs( );
if (options.diff_arg.db_tag != NULL && ensure_db_access())
{
fprintf(stderr, "Cleaning diff table...\n");
ListMgr_DestroyTag(&lmgr, options.diff_arg.db_tag);
/* make sure written data is flushed */
if (options.diff_arg.lovea_file)
fflush(options.diff_arg.lovea_file);
if (options.diff_arg.fid_remap_file)
fflush(options.diff_arg.fid_remap_file);
}
/* indicate the process terminated due to a signal */
exit( 128 + terminate_sig );
}
else if ( dump_sig )
{
DisplayLog( LVL_MAJOR, SIGHDL_TAG, "SIGUSR1 received: dumping stats" );
if (!ensure_db_access())
return NULL;
dump_stats(&lmgr);
dump_sig = FALSE;
}
}
}
/* Wait for next stat deadline */
void WaitStatsInterval(void)
{
rh_sleep(log_config.stats_interval > 0 ? log_config.stats_interval : 1);
}
/* Wait for next stat deadline */
void WaitStatsInterval( )
{
rh_sleep( log_config.stats_interval );
}
