/*
* This file is part of DisOrder
- * Copyright (C) 2005, 2006 Richard Kettlewell
+ * Copyright (C) 2005-2008 Richard Kettlewell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <sys/wait.h>
#include <string.h>
#include <syslog.h>
+#include <time.h>
#include "configuration.h"
#include "syscalls.h"
#include "wstat.h"
#include "kvp.h"
#include "printf.h"
+#include "rights.h"
#include "trackdb.h"
#include "trackdb-int.h"
+#include "trackname.h"
+#include "unicode.h"
+#include "version.h"
static DB_TXN *global_tid;
{ "config", required_argument, 0, 'c' },
{ "debug", no_argument, 0, 'd' },
{ "no-debug", no_argument, 0, 'D' },
+ { "syslog", no_argument, 0, 's' },
+ { "no-syslog", no_argument, 0, 'S' },
+ { "check", no_argument, 0, 'K' },
+ { "no-check", no_argument, 0, 'C' },
{ 0, 0, 0, 0 }
};
" --version, -V Display version number\n"
" --config PATH, -c PATH Set configuration file\n"
" --debug, -d Turn on debugging\n"
+ " --[no-]syslog Enable/disable logging to syslog\n"
+ " --[no-]check Enable/disable track length check\n"
"\n"
"Rescanner for DisOrder. Not intended to be run\n"
"directly.\n");
exit(0);
}
-/* display version number and terminate */
-static void version(void) {
- xprintf("disorder-rescan version %s\n", disorder_version_string);
- xfclose(stdout);
- exit(0);
-}
-
static volatile sig_atomic_t signalled;
static void signal_handler(int sig) {
error(0, "cannot convert track path to UTF-8: %s", path);
continue;
}
+ if(config->dbversion > 1) {
+ /* We use NFC track names */
+ if(!(track = utf8_compose_canon(track, strlen(track), 0))) {
+ error(0, "cannot convert track path to NFC: %s", path);
+ continue;
+ }
+ }
D(("track %s", track));
/* only tracks with a known player are admitted */
for(n = 0; (n < config->player.n
if(n < config->player.n) {
nnew += !!trackdb_notice(track, path);
++ntracks;
+ if(ntracks % 1000 == 0)
+ info("rescanning %s, %ld tracks so far", c->root, ntracks);
}
}
/* tidy up */
struct recheck_state {
const struct collection *c;
- long nobsolete, nlength;
+ long nobsolete, nnocollection, nlength;
+ struct recheck_track *tracks;
+};
+
+struct recheck_track {
+ struct recheck_track *next;
+ const char *track;
};
/* called for each non-alias track */
-static int recheck_callback(const char *track,
- struct kvp *data,
- void *u,
- DB_TXN *tid) {
+static int recheck_list_callback(const char *track,
+ struct kvp attribute((unused)) *data,
+ struct kvp attribute((unused)) *prefs,
+ void *u,
+ DB_TXN attribute((unused)) *tid) {
struct recheck_state *cs = u;
+ struct recheck_track *t = xmalloc(sizeof *t);
+
+ t->next = cs->tracks;
+ t->track = track;
+ cs->tracks = t;
+ return 0;
+}
+
+static int recheck_track_tid(struct recheck_state *cs,
+ const struct recheck_track *t,
+ DB_TXN *tid) {
const struct collection *c = cs->c;
- const char *path = kvp_get(data, "_path");
+ const char *path;
char buffer[20];
- int err;
- long n;
+ int err, n;
+ long length;
+ struct kvp *data;
- if(aborted()) return EINTR;
- D(("rechecking %s", track));
+ if((err = trackdb_getdata(trackdb_tracksdb, t->track, &data, tid)))
+ return err;
+ path = kvp_get(data, "_path");
+ D(("rechecking %s", t->track));
+ /* if we're not checking a specific collection, find the right collection */
+ if(!c) {
+ if(!(c = find_track_collection(t->track))) {
+ D(("obsoleting %s", t->track));
+ if((err = trackdb_obsolete(t->track, tid)))
+ return err;
+ ++cs->nnocollection;
+ return 0;
+ }
+ }
/* see if the track has evaporated */
if(check(c->module, c->root, path) == 0) {
- D(("obsoleting %s", track));
- if((err = trackdb_obsolete(track, tid))) return err;
+ D(("obsoleting %s", t->track));
+ if((err = trackdb_obsolete(t->track, tid)))
+ return err;
++cs->nobsolete;
return 0;
}
/* make sure we know the length */
if(!kvp_get(data, "_length")) {
- D(("recalculating length of %s", track));
- n = tracklength(track, path);
- if(n > 0) {
- byte_snprintf(buffer, sizeof buffer, "%ld", n);
- kvp_set(&data, "_length", buffer);
- if((err = trackdb_putdata(trackdb_tracksdb, track, data, tid, 0)))
- return err;
- ++cs->nlength;
+ D(("recalculating length of %s", t->track));
+ for(n = 0; n < config->tracklength.n; ++n)
+ if(fnmatch(config->tracklength.s[n].s[0], t->track, 0) == 0)
+ break;
+ if(n >= config->tracklength.n)
+ error(0, "no tracklength plugin found for %s", t->track);
+ else {
+ length = tracklength(config->tracklength.s[n].s[1], t->track, path);
+ if(length > 0) {
+ byte_snprintf(buffer, sizeof buffer, "%ld", length);
+ kvp_set(&data, "_length", buffer);
+ if((err = trackdb_putdata(trackdb_tracksdb, t->track, data, tid, 0)))
+ return err;
+ ++cs->nlength;
+ }
}
}
return 0;
}
+static int recheck_track(struct recheck_state *cs,
+ const struct recheck_track *t) {
+ int e;
+
+ WITH_TRANSACTION(recheck_track_tid(cs, t, tid));
+ return e;
+}
+
/* recheck a collection */
static void recheck_collection(const struct collection *c) {
struct recheck_state cs;
+ const struct recheck_track *t;
+ long nrc;
- info("rechecking %s", c->root);
+ if(c)
+ info("rechecking %s", c->root);
+ else
+ info("rechecking all tracks");
+ /* Doing the checking inside a transaction locks up the server for much too
+ * long (because it spends lots of time thinking about each track). So we
+ * pull the full track list into memory and work from that.
+ *
+ * 100,000 tracks at, say, 80 bytes per track name, gives 8MB, which is quite
+ * reasonable.
+ */
for(;;) {
checkabort();
+ info("getting track list");
global_tid = trackdb_begin_transaction();
memset(&cs, 0, sizeof cs);
cs.c = c;
- if(trackdb_scan(c->root, recheck_callback, &cs, global_tid)) goto fail;
+ if(trackdb_scan(c ? c->root : 0, recheck_list_callback, &cs, global_tid))
+ goto fail;
break;
fail:
/* Maybe we need to shut down */
/* Let anything else that is going on get out of the way. */
sleep(10);
checkabort();
- info("resuming recheck of %s", c->root);
+ if(c)
+ info("resuming recheck of %s", c->root);
+ else
+ info("resuming global recheck");
}
trackdb_commit_transaction(global_tid);
global_tid = 0;
- info("rechecked %s, %ld obsoleted, %ld lengths calculated",
- c->root, cs.nobsolete, cs.nlength);
+ nrc = 0;
+ for(t = cs.tracks; t; t = t->next) {
+ if(aborted())
+ return;
+ recheck_track(&cs, t);
+ ++nrc;
+ if(nrc % 100 == 0) {
+ if(c)
+ info("rechecking %s, %ld tracks so far", c->root, nrc);
+ else
+ info("rechecking all tracks, %ld tracks so far", nrc);
+ }
+ }
+ if(c)
+ info("rechecked %s, %ld obsoleted, %ld lengths calculated",
+ c->root, cs.nobsolete, cs.nlength);
+ else
+ info("rechecked all tracks, %ld no collection, %ld obsoleted, %ld lengths calculated",
+ cs.nnocollection, cs.nobsolete, cs.nlength);
}
/* rescan/recheck a collection by name */
for(n = 0; n < config->collection.n; ++n)
fn(&config->collection.s[n]);
+ /* TODO: we need to tidy up tracks from collections now removed. We could do
+ * this two ways: either remember collections we think there are and spot
+ * their disappearance, or iterate over all tracks and gc any that don't fit
+ * into some collection.
+ *
+ * Having a way to rename collections would be rather convenient too but
+ * that's another kettle of monkeys.
+ */
+}
+
+/** @brief Expire noticed.db */
+static void expire_noticed(void) {
+ time_t now;
+
+ time(&now);
+ trackdb_expire_noticed(now - config->noticed_history * 86400);
}
int main(int argc, char **argv) {
- int n;
+ int n, logsyslog = !isatty(2);
struct sigaction sa;
+ int do_check = 1;
set_progname(argv);
- mem_init(1);
+ mem_init();
if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
- while((n = getopt_long(argc, argv, "hVc:dD", options, 0)) >= 0) {
+ while((n = getopt_long(argc, argv, "hVc:dDSsKC", options, 0)) >= 0) {
switch(n) {
case 'h': help();
- case 'V': version();
+ case 'V': version("disorder-rescan");
case 'c': configfile = optarg; break;
case 'd': debugging = 1; break;
case 'D': debugging = 0; break;
+ case 'S': logsyslog = 0; break;
+ case 's': logsyslog = 1; break;
+ case 'K': do_check = 1; break;
+ case 'C': do_check = 0; break;
default: fatal(0, "invalid option");
}
}
- /* If stderr is a TTY then log there, otherwise to syslog. */
- if(!isatty(2)) {
+ if(logsyslog) {
openlog(progname, LOG_PID, LOG_DAEMON);
log_default = &log_syslog;
}
- if(config_read()) fatal(0, "cannot read configuration");
+ if(config_read(0)) fatal(0, "cannot read configuration");
xnice(config->nice_rescan);
sa.sa_handler = signal_handler;
sa.sa_flags = SA_RESTART;
xsigaction(SIGTERM, &sa, 0);
xsigaction(SIGINT, &sa, 0);
info("started");
- trackdb_init(0);
- trackdb_open();
+ trackdb_init(TRACKDB_NO_RECOVER);
+ trackdb_open(TRACKDB_NO_UPGRADE);
if(optind == argc) {
+ /* Rescan all collections */
do_all(rescan_collection);
- do_all(recheck_collection);
+ /* Check that every track still exists */
+ if(do_check)
+ recheck_collection(0);
+ /* Expire noticed.db */
+ expire_noticed();
}
else {
+ /* Rescan specified collections */
for(n = optind; n < argc; ++n)
do_directory(argv[n], rescan_collection);
- for(n = optind; n < argc; ++n)
- do_directory(argv[n], recheck_collection);
+ /* Check specified collections for tracks that have gone */
+ if(do_check)
+ for(n = optind; n < argc; ++n)
+ do_directory(argv[n], recheck_collection);
}
trackdb_close();
trackdb_deinit();
~mdw / disorder / blobdiff