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Purge old files and playlists after bulk scan

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This commit is contained in:
Julien BLACHE
2009-06-07 20:49:13 +02:00
parent 4e3b29f502
commit 7314dd21c7
3 changed files with 66 additions and 0 deletions
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54
src/db.c
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@@ -283,6 +283,60 @@ free_pli(struct playlist_info *pli, int content_only)
free(pli);
}
void
db_purge_cruft(time_t ref)
{
char *errmsg;
int i;
int ret;
char *queries[4] = { NULL, NULL, NULL, NULL };
char *queries_tmpl[4] =
{
"DELETE FROM playlistitems WHERE playlistid IN (SELECT id FROM playlists WHERE id <> 1 AND db_timestamp < %" PRIi64 ");",
"DELETE FROM playlists WHERE id <> 1 AND db_timestamp < %" PRIi64 ";",
"DELETE FROM playlistitems WHERE songid IN (SELECT id FROM songs WHERE db_timestamp < %" PRIi64 ");",
"DELETE FROM songs WHERE db_timestamp < %" PRIi64 ";"
};
if (sizeof(queries) != sizeof(queries_tmpl))
{
DPRINTF(E_LOG, L_DB, "db_purge_cruft(): queries out of sync with queries_tmpl\n");
return;
}
for (i = 0; i < (sizeof(queries_tmpl) / sizeof(queries_tmpl[0])); i++)
{
queries[i] = sqlite3_mprintf(queries_tmpl[i], (int64_t)ref);
if (!queries[i])
{
DPRINTF(E_LOG, L_DB, "Out of memory for query string\n");
goto purge_fail;
}
}
for (i = 0; i < (sizeof(queries) / sizeof(queries[0])); i++)
{
DPRINTF(E_DBG, L_DB, "Running purge query '%s'\n", queries[i]);
ret = sqlite3_exec(hdl, queries[i], NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
{
DPRINTF(E_LOG, L_DB, "Purge query %d error: %s\n", i, errmsg);
sqlite3_free(errmsg);
}
else
DPRINTF(E_DBG, L_DB, "Purged %d rows\n", sqlite3_changes(hdl));
}
purge_fail:
for (i = 0; i < (sizeof(queries) / sizeof(queries[0])); i++)
{
sqlite3_free(queries[i]);
}
}
/* Queries */
static int