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* Force a rescan if a new media_dir is detected.

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This commit is contained in:
Justin Maggard 2012-05-22 22:38:29 +00:00
parent 110300b44e
commit bca5a24a57
1 changed files with 90 additions and 76 deletions
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166
minidlna.c
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@ -336,6 +336,81 @@ open_db(void)
return new_db;
}
static void
check_db(sqlite3 *db, int new_db, pid_t *scanner_pid)
{
int ret;
char cmd[PATH_MAX*2];
struct media_dir_s *media_path = NULL, *last_path;
struct album_art_name_s *art_names, *last_name;
/* Check if any new media dirs appeared */
if( !new_db )
{
media_path = media_dirs;
while( media_path )
{
ret = sql_get_int_field(db, "SELECT ID from DETAILS where PATH = %Q", media_path->path);
if (ret < 1)
break;
media_path = media_path->next;
}
}
if( media_path )
ret = 1;
else
ret = db_upgrade(db);
if( ret != 0 )
{
if( ret < 0 )
DPRINTF(E_WARN, L_GENERAL, "Creating new database at %s/files.db\n", db_path);
else if( ret == 1 )
DPRINTF(E_WARN, L_GENERAL, "New media_dir detected; rescanning...\n");
else
DPRINTF(E_WARN, L_GENERAL, "Database version mismatch; need to recreate...\n");
sqlite3_close(db);
snprintf(cmd, sizeof(cmd), "rm -rf %s/files.db %s/art_cache", db_path, db_path);
if( system(cmd) != 0 )
DPRINTF(E_FATAL, L_GENERAL, "Failed to clean old file cache! Exiting...\n");
open_db();
if( CreateDatabase() != 0 )
DPRINTF(E_FATAL, L_GENERAL, "ERROR: Failed to create sqlite database! Exiting...\n");
#if USE_FORK
scanning = 1;
sqlite3_close(db);
*scanner_pid = fork();
open_db();
if( !(*scanner_pid) ) // child (scanner) process
{
start_scanner();
sqlite3_close(db);
media_path = media_dirs;
art_names = album_art_names;
while( media_path )
{
free(media_path->path);
last_path = media_path;
media_path = media_path->next;
free(last_path);
}
while( art_names )
{
free(art_names->name);
last_name = art_names;
art_names = art_names->next;
free(last_name);
}
freeoptions();
exit(EXIT_SUCCESS);
}
#else
start_scanner();
#endif
}
}
/* init phase :
* 1) read configuration file
* 2) read command line arguments
@ -819,6 +894,7 @@ init(int argc, char * * argv)
{
pid = daemonize();
#ifdef READYNAS
unlink("/ramfs/.upnp-av_scan");
log_init("/var/log/upnp-av.log", log_level);
#else
if( access(db_path, F_OK) != 0 )
@ -880,7 +956,7 @@ main(int argc, char * * argv)
struct media_dir_s *media_path, *last_path;
struct album_art_name_s *art_names, *last_name;
#ifdef TIVO_SUPPORT
unsigned short int beacon_interval = 5;
uint8_t beacon_interval = 5;
int sbeacon = -1;
struct sockaddr_in tivo_bcast;
struct timeval lastbeacontime = {0, 0};
@ -898,94 +974,32 @@ main(int argc, char * * argv)
if (init(argc, argv) != 0)
return 1;
#ifdef READYNAS
DPRINTF(E_WARN, L_GENERAL, "Starting " SERVER_NAME " version " MINIDLNA_VERSION ".\n");
unlink("/ramfs/.upnp-av_scan");
#else
DPRINTF(E_WARN, L_GENERAL, "Starting " SERVER_NAME " version " MINIDLNA_VERSION " [SQLite %s].\n", sqlite3_libversion());
if( !sqlite3_threadsafe() )
{
DPRINTF(E_ERROR, L_GENERAL, "SQLite library is not threadsafe! "
"Scanning must be finished before file serving can begin, "
"and inotify will be disabled.\n");
}
if( sqlite3_libversion_number() < 3005001 )
{
DPRINTF(E_WARN, L_GENERAL, "SQLite library is old. Please use version 3.5.1 or newer.\n");
}
#endif
LIST_INIT(&upnphttphead);
if( open_db() == 0 )
if( (i = open_db()) == 0 )
{
updateID = sql_get_int_field(db, "SELECT UPDATE_ID from SETTINGS");
}
i = db_upgrade(db);
if( i != 0 )
{
if( i < 0 )
{
DPRINTF(E_WARN, L_GENERAL, "Creating new database at %s/files.db\n", db_path);
}
else
{
DPRINTF(E_WARN, L_GENERAL, "Database version mismatch; need to recreate...\n");
}
sqlite3_close(db);
char *cmd;
i = asprintf(&cmd, "rm -rf %s/files.db %s/art_cache", db_path, db_path);
if( i > 0 )
i = system(cmd);
else
cmd = NULL;
if( i != 0 )
{
DPRINTF(E_FATAL, L_GENERAL, "Failed to clean old file cache! Exiting...\n");
}
free(cmd);
open_db();
if( CreateDatabase() != 0 )
{
DPRINTF(E_FATAL, L_GENERAL, "ERROR: Failed to create sqlite database! Exiting...\n");
}
#if USE_FORK
scanning = 1;
sqlite3_close(db);
scanner_pid = fork();
open_db();
if( !scanner_pid ) // child (scanner) process
{
start_scanner();
sqlite3_close(db);
media_path = media_dirs;
art_names = album_art_names;
while( media_path )
{
free(media_path->path);
last_path = media_path;
media_path = media_path->next;
free(last_path);
}
while( art_names )
{
free(art_names->name);
last_name = art_names;
art_names = art_names->next;
free(last_name);
}
freeoptions();
exit(EXIT_SUCCESS);
}
#else
start_scanner();
#endif
}
check_db(db, i, &scanner_pid);
signal(SIGCHLD, &sigchld);
#ifdef HAVE_INOTIFY
if( sqlite3_threadsafe() && sqlite3_libversion_number() >= 3005001 &&
GETFLAG(INOTIFY_MASK) && pthread_create(&inotify_thread, NULL, start_inotify, NULL) )
if( GETFLAG(INOTIFY_MASK) )
{
DPRINTF(E_FATAL, L_GENERAL, "ERROR: pthread_create() failed for start_inotify. EXITING\n");
if( !sqlite3_threadsafe() || sqlite3_libversion_number() < 3005001 )
{
DPRINTF(E_ERROR, L_GENERAL, "SQLite library is not threadsafe! "
"Inotify will be disabled.\n");
}
else if( pthread_create(&inotify_thread, NULL, start_inotify, NULL) )
{
DPRINTF(E_FATAL, L_GENERAL, "ERROR: pthread_create() failed for start_inotify. EXITING\n");
}
}
#endif
sudp = OpenAndConfSSDPReceiveSocket(n_lan_addr, lan_addr);