--- /dev/null
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*/
-// TODO: for daemon mode, need to detach from the terminal
// TODO: Catch HUP and reparse config
+// TODO: Should perhaps direct all printf's through a vsprintf handler to avoid redundant "if ! g_daemon_mode"
+// TODO: During daemon mode, should perhaps syslog or log errors
+// TODO: Removing stale .desktop checks that .desktop was created by libpnd; see 'TBD' below
-#include <stdio.h> // for stdio
-#include <unistd.h> // for exit()
-#include <stdlib.h> // for exit()
+#include <stdio.h> // for stdio
+#include <unistd.h> // for exit()
+#include <stdlib.h> // for exit()
#include <string.h>
-#include <time.h> // for time()
-#include <ctype.h> // for isdigit()
+#include <time.h> // for time()
+#include <ctype.h> // for isdigit()
+#include <sys/types.h> // for umask
+#include <sys/stat.h> // for umask
+#include <dirent.h> // for opendir()
#include "pnd_conf.h"
#include "pnd_container.h"
#include "pnd_apps.h"
#include "pnd_notify.h"
#include "../lib/pnd_pathiter.h"
+#include "pnd_discovery.h"
static unsigned char g_daemon_mode = 0;
int main ( int argc, char *argv[] ) {
pnd_notify_handle nh;
+ // like discotest
char *configpath;
char *appspath;
+ char *overridespath;
+ // daemon stuff
char *searchpath = NULL;
char *dotdesktoppath = NULL;
+ // behaviour
+ unsigned char scanonlaunch = 1;
+ unsigned int interval_secs = 20;
+ // misc
int i;
- unsigned int interval_secs = 60;
-
/* iterate across args
*/
for ( i = 1; i < argc; i++ ) {
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 {
printf ( "%s [-d] [##]\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 ( "##\tA numeric value is interpreted as number of seconds between checking for filesystem changes. Default %u.\n",
interval_secs );
exit ( 0 );
printf ( "Interval between checks is %u seconds\n", interval_secs );
}
+ // basic daemon set up
+ if ( g_daemon_mode ) {
+
+ // set a CWD somewhere else
+ chdir ( "/tmp" );
+
+ // detach from terminal
+ if ( ( i = fork() ) < 0 ) {
+ printf ( "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
+
/* parse configs
*/
appspath = PND_APPS_SEARCHPATH;
}
+ overridespath = pnd_conf_get_as_char ( apph, PND_PXML_OVERRIDE_KEY );
+
+ if ( ! overridespath ) {
+ overridespath = PND_PXML_OVERRIDE_SEARCHPATH;
+ }
+
} else {
// couldn't find a useful app search path so use the default
appspath = PND_APPS_SEARCHPATH;
+ overridespath = PND_PXML_OVERRIDE_SEARCHPATH;
}
// attempt to figure out where to drop dotfiles
if ( ! g_daemon_mode ) {
printf ( "Apps searchpath is '%s'\n", appspath );
+ printf ( "PXML overrides searchpath is '%s'\n", overridespath );
printf ( ".desktop files emit to '%s'\n", dotdesktoppath );
}
SEARCHPATH_PRE
{
- pnd_notify_watch_path ( nh, buffer, PND_NOTIFY_RECURSE );
-
if ( ! g_daemon_mode ) {
printf ( "Watching path '%s' and its descendents.\n", buffer );
}
+ pnd_notify_watch_path ( nh, buffer, PND_NOTIFY_RECURSE );
+
}
SEARCHPATH_POST
while ( 1 ) {
// need to rediscover?
- if ( pnd_notify_rediscover_p ( nh ) ) {
+ if ( scanonlaunch ||
+ pnd_notify_rediscover_p ( nh ) )
+ {
+ pnd_box_handle applist;
+ time_t createtime = time ( NULL ); // all 'new' .destops are created at or after this time; prev are old.
+
+ // if this was a forced scan, lets not do that next iteration
+ if ( scanonlaunch ) {
+ scanonlaunch = 0;
+ }
// 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
printf ( "Path to emit .desktop files to: '%s'\n", dotdesktoppath );
}
- // lets not eat up all the CPU
- // should use an alarm or select() or something
- sleep ( interval_secs );
+ // run the discovery
+ applist = pnd_disco_search ( appspath, overridespath );
+
+ // list the found apps (if any)
+ if ( applist ) {
+ pnd_disco_t *d = pnd_box_get_head ( applist );
+
+ while ( d ) {
+
+ if ( ! g_daemon_mode ) {
+ printf ( "Found app: %s\n", pnd_box_get_key ( d ) );
+ }
+
+ // create the .desktop file
+ if ( pnd_emit_dotdesktop ( dotdesktoppath, d ) ) {
+ // add a watch onto the newly created .desktop?
+#if 0
+ char buffer [ FILENAME_MAX ];
+ sprintf ( buffer, "%s/%s", dotdesktoppath, d -> unique_id );
+ pnd_notify_watch_path ( nh, buffer, PND_NOTIFY_RECURSE );
+#endif
+ } else {
+ if ( ! g_daemon_mode ) {
+ printf ( "ERROR: Error creating .desktop file for app: %s\n", pnd_box_get_key ( d ) );
+ }
+ }
+
+ // next!
+ d = pnd_box_get_next ( d );
+
+ } // while applist
+
+ } else {
+
+ if ( ! g_daemon_mode ) {
+ printf ( "No applications found in search path\n" );
+ }
+
+ } // got apps?
+
+ // run a clean up, to remove any dotdesktop files that we didn't
+ // just now create (that seem to have been created by pndnotifyd
+ // previously.) This allows SD eject (or .pnd remove) to remove
+ // an app from the launcher
+ // NOTE: Could opendir and iterate across all .desktop files,
+ // removing any that have Source= something else, and that the
+ // app name is not in the list found in applist box above. But
+ // a cheesy simple way right now is to just remove .desktop files
+ // that have a last mod time prior to the time we stored above.
+ {
+ DIR *dir;
+
+ if ( ( dir = opendir ( dotdesktoppath ) ) ) {
+ struct dirent *dirent;
+ struct stat dirs;
+ char buffer [ FILENAME_MAX ];
+
+ while ( ( dirent = readdir ( dir ) ) ) {
+
+ // file is a .desktop?
+ if ( strstr ( dirent -> d_name, ".desktop" ) == NULL ) {
+ continue;
+ }
+
+ // file was previously created by libpnd; check Source= line
+ // TBD
+
+ // file is 'new'?
+ sprintf ( buffer, "%s/%s", dotdesktoppath, dirent -> d_name );
+ if ( stat ( buffer, &dirs ) == 0 ) {
+ if ( dirs.st_mtime >= createtime ) {
+ continue;
+ }
+ }
+
+ // by this point, the .desktop file must be 'old' and created by pndnotifyd
+ // previously, so can remove it
+ if ( ! g_daemon_mode ) {
+ printf ( "File '%s' seems to not belong; removing it.\n", dirent -> d_name );
+ }
+ unlink ( buffer );
+
+ } // while getting filenames from dir
+
+ closedir ( dir );
+ }
+
+ } // purge old .desktop files
} // need to rediscover?
+ // lets not eat up all the CPU
+ // should use an alarm or select() or something
+ sleep ( interval_secs );
+
} // while
/* shutdown
git.openpandora.org / pandora-libraries.git / commitdiff