void sigint_handler ( int n ) {
pnd_log ( pndn_rem, "---[ SIGINT received ]---\n" );
if ( dbh ) {
pnd_dbusnotify_shutdown ( dbh );
}
if ( nh ) {
pnd_notify_shutdown ( nh );
}
return;
}
void gui_clean()
{
debug_start();
video_quit();
gui_clean_skin();
gui_unload_preview();
pnd_app_clean_list();
pnd_notify_shutdown ( nh );
pnd_dbusnotify_shutdown ( nh2 );
doneStatusCalls();
GLES2D_Quit();
debug_end();
}
int main ( int argc, char *argv[] ) {
// behaviour
unsigned char scanonlaunch = 1;
unsigned int interval_secs = 5;
int logall = -1; // -1 means normal logging rules; >=0 means log all!
// misc
int i;
/* iterate across args
*/
for ( i = 1; i < argc; i++ ) {
if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'd' ) {
//printf ( "Going daemon mode. Silent running.\n" );
g_daemon_mode = 1;
} else if ( isdigit ( argv [ i ][ 0 ] ) ) {
interval_secs = atoi ( argv [ i ] );
} else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'n' ) {
scanonlaunch = 0;
} else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'l' ) {
if ( isdigit ( argv [ i ][ 2 ] ) ) {
unsigned char x = atoi ( argv [ i ] + 2 );
if ( x >= 0 &&
x < pndn_none )
{
logall = x;
}
} else {
logall = 0;
}
} else {
printf ( "%s [-d] [-l] [##]\n", argv [ 0 ] );
printf ( "-d\tDaemon mode; detach from terminal, chdir to /tmp, suppress output. Optional.\n" );
printf ( "-n\tDo not scan on launch; default is to run a scan for apps when %s is invoked.\n", argv [ 0 ] );
printf ( "-l#\tLog-it; -l is 0-and-up (or all), and -l2 means 2-and-up (not all); l[0-3] for now. Log goes to /tmp/pndnotifyd.log\n" );
printf ( "##\tA numeric value is interpreted as number of seconds between checking for filesystem changes. Default %u.\n",
interval_secs );
printf ( "Signal: HUP the process to force reload of configuration and reset the notifier watch paths\n" );
exit ( 0 );
}
} // for
/* enable logging?
*/
pnd_log_set_pretext ( "pndnotifyd" );
pnd_log_set_flush ( 1 );
if ( logall == -1 ) {
// standard logging; non-daemon versus daemon
if ( g_daemon_mode ) {
// nada
} else {
pnd_log_set_filter ( pndn_rem );
pnd_log_to_stdout();
}
} else {
FILE *f;
f = fopen ( "/tmp/pndnotifyd.log", "w" );
if ( f ) {
pnd_log_set_filter ( logall );
pnd_log_to_stream ( f );
pnd_log ( pndn_rem, "logall mode - logging to /tmp/pndnotifyd.log\n" );
}
if ( logall == pndn_debug ) {
pnd_log_set_buried_logging ( 1 ); // log the shit out of it
pnd_log ( pndn_rem, "logall mode 0 - turned on buried logging\n" );
}
} // logall
pnd_log ( pndn_rem, "%s built %s %s", argv [ 0 ], __DATE__, __TIME__ );
pnd_log ( pndn_rem, "log level starting as %u", pnd_log_get_filter() );
pnd_log ( pndn_rem, "Interval between checks is %u seconds\n", interval_secs );
// check if inotify is awake yet; if not, try waiting for awhile to see if it does
pnd_log ( pndn_rem, "Starting INOTIFY test; should be instant, but may take awhile...\n" );
if ( ! pnd_notify_wait_until_ready ( 120 /* seconds */ ) ) {
pnd_log ( pndn_error, "ERROR: INOTIFY refuses to be useful and quite awhile has passed. Bailing out.\n" );
return ( -1 );
}
pnd_log ( pndn_rem, "INOTIFY seems to be useful, whew.\n" );
// basic daemon set up
if ( g_daemon_mode ) {
// set a CWD somewhere else
#if 0
chdir ( "/tmp" );
#endif
// detach from terminal
if ( ( i = fork() ) < 0 ) {
pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
exit ( i );
}
if ( i ) {
exit ( 0 ); // exit parent
}
setsid();
// umask
umask ( 022 ); // emitted files can be rwxr-xr-x
} // set up daemon
// wait for a user to be logged in - we should probably get hupped when a user logs in, so we can handle
// log-out and back in again, with SDs popping in and out between..
pnd_log ( pndn_rem, "Checking to see if a user is logged in\n" );
while ( 1 ) {
if ( pnd_check_login ( g_username, 127 ) ) {
break;
}
pnd_log ( pndn_debug, " No one logged in yet .. spinning.\n" );
sleep ( 2 );
} // spin
pnd_log ( pndn_rem, "Looks like user '%s' is in, continue.\n", g_username );
/* parse configs
*/
consume_configuration();
/* startup
*/
pnd_log ( pndn_rem, "PXML overrides searchpath is '%s'\n", overridespath );
pnd_log ( pndn_rem, "Notify searchpath is '%s'\n", notifypath );
pnd_log ( pndn_rem, "Desktop apps ---------------------------------\n" );
pnd_log ( pndn_rem, "Apps searchpath is '%s'\n", desktop_appspath );
pnd_log ( pndn_rem, ".desktop files emit to '%s'\n", desktop_dotdesktoppath );
pnd_log ( pndn_rem, ".desktop icon files emit to '%s'\n", desktop_iconpath );
pnd_log ( pndn_rem, "Menu apps ---------------------------------\n" );
pnd_log ( pndn_rem, "Apps searchpath is '%s'\n", menu_appspath );
pnd_log ( pndn_rem, ".desktop files emit to '%s'\n", menu_dotdesktoppath );
pnd_log ( pndn_rem, ".desktop icon files emit to '%s'\n", menu_iconpath );
pnd_log ( pndn_rem, ".desktop info files emit to '%s'\n", info_dotdesktoppath ? info_dotdesktoppath : "n/a" );
/* set up signal handler
*/
sigset_t ss;
sigemptyset ( &ss );
struct sigaction siggy;
siggy.sa_handler = sighup_handler;
siggy.sa_mask = ss; /* implicitly blocks the origin signal */
siggy.sa_flags = 0; /* don't need anything */
sigaction ( SIGHUP, &siggy, NULL );
siggy.sa_handler = sigint_handler;
sigaction ( SIGINT, &siggy, NULL );
/* set up notifies
*/
// if we're gong to scan on launch, it'll set things right up and then set up notifications.
// if no scan on launch, we need to set the notif's up now.
//if ( ! scanonlaunch ) {
setup_notifications();
//}
dbh = pnd_dbusnotify_init();
/* daemon main loop
*/
unsigned char watch_inotify, watch_dbus;
while ( 1 ) {
watch_dbus = 0;
watch_inotify = 0;
if ( dbh ) {
watch_dbus = pnd_dbusnotify_rediscover_p ( dbh );
}
if ( ! watch_dbus && nh ) {
watch_inotify = pnd_notify_rediscover_p ( nh );
}
// need to rediscover?
if ( scanonlaunch || watch_inotify || watch_dbus ) {
// by this point, the watched directories have notified us that something of relevent
// has occurred; we should be clever, but we're not, so just re-brute force the
// discovery and spit out .desktop files..
pnd_log ( pndn_rem, "------------------------------------------------------\n" );
pnd_log ( pndn_rem, "System changes detected in dbus or watched paths .. performing re-discover!\n" );
// if this was a forced scan, lets not do that next iteration
if ( scanonlaunch ) {
pnd_log ( pndn_rem, "scan-on-first-launch detected an event\n" );
scanonlaunch = 0;
}
if ( watch_inotify ) {
pnd_log ( pndn_rem, "inotify detected an event\n" );
}
if ( watch_dbus ) {
pnd_log ( pndn_rem, "dbusnotify detected an event\n" );
pnd_notify_shutdown ( nh );
nh = 0;
}
if ( time ( NULL ) - createtime <= 2 ) {
pnd_log ( pndn_rem, "Rediscovery request comes to soon after previous discovery; skipping.\n" );
sleep ( interval_secs );
continue;
}
pnd_log ( pndn_rem, "------------------------------------------------------\n" );
createtime = time ( NULL ); // all 'new' .destops are created at or after this time; prev are old.
/* run the discovery
*/
// do some 'locking'
pnd_log ( pndn_rem, "creating lockfile %s", PNDLOCKNAME );
if ( ! pnd_lock ( PNDLOCKNAME ) ) {
// problem .. well, too bad, we need to do this .. proceed!
}
// scan..
pnd_log ( pndn_rem, " Scanning desktop paths----------------------------\n" );
if ( ! perform_discoveries ( desktop_appspath, overridespath, desktop_dotdesktoppath, desktop_iconpath ) ) {
pnd_log ( pndn_rem, " No applications found in desktop search path\n" );
}
if ( menu_appspath && menu_dotdesktoppath && menu_iconpath ) {
pnd_log ( pndn_rem, " Scanning menu paths----------------------------\n" );
if ( ! perform_discoveries ( menu_appspath, overridespath, menu_dotdesktoppath, menu_iconpath ) ) {
pnd_log ( pndn_rem, " No applications found in menu search path\n" );
}
}
// unlock
pnd_log ( pndn_rem, "clearing lockfile %s", PNDLOCKNAME );
pnd_unlock ( PNDLOCKNAME );
// if we've got a hup script located, lets invoke it
if ( pndhup ) {
pnd_log ( pndn_rem, "Invoking hup script '%s'.\n", pndhup );
pnd_exec_no_wait_1 ( pndhup, NULL );
}
// since its entirely likely new directories have been found (ie: SD with a directory structure was inserted)
// we should re-apply watches to catch all these new directories; ie: user might use on-device browser to
// drop in new applications, or use the shell to juggle them around, or any number of activities.
if ( watch_dbus ) {
setup_notifications();
}
} // need to rediscover?
// lets not eat up all the CPU
// should use an alarm or select() or something -- I mean really, why aren't I putting interval_secs into
// the select() call above in pnd_notify_whatsitcalled()? -- but lets not break this right before release shall we
// NOTE: Oh right, I remember now -- inotify will spam when a card is inserted, and it will not be instantaneoous..
// the events will dribble in over a second. So this sleep is a lame trick that generally works. I really should
// do select(), and then when it returns just spin for a couple seconds slurping up events until no more and a thresh-hold
// time is hit, but this will do for now. I suck.
sleep ( interval_secs );
} // while
/* shutdown
*/
pnd_notify_shutdown ( nh );
pnd_dbusnotify_shutdown ( dbh );
return ( 0 );
}
