Enable auto vacuum.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4372 ed5197a5-7fde-0310-b194-c3ffbd925b24

Makefile

@@ -270,7 +270,7 @@ $(SQLITE_OBJS): CFLAGS += \
 	-DSQLITE_ENABLE_FTS5 \
 	-DSQLITE_ENABLE_JSON1 \
 	-DSQLITE_LIKE_DOESNT_MATCH_BLOBS \
-	-DSQLITE_MAX_ATTACHED=0 \
+	-DSQLITE_MAX_ATTACHED=1 \
 	-DSQLITE_MAX_COLUMN=100 \
 	-DSQLITE_MAX_COMPOUND_SELECT=300 \
 	-DSQLITE_MAX_EXPR_DEPTH=40 \

src/ssb.db.c

@@ -77,6 +77,25 @@ void tf_ssb_db_init(tf_ssb_t* ssb)
 {
 	sqlite3* db = tf_ssb_acquire_db_writer(ssb);
 	_tf_ssb_db_init_internal(db);
+
+	sqlite3_stmt* statement = NULL;
+	int auto_vacuum = 0;
+	if (sqlite3_prepare(db, "PRAGMA auto_vacuum", -1, &statement, NULL) == SQLITE_OK)
+	{
+		if (sqlite3_step(statement) == SQLITE_ROW)
+		{
+			auto_vacuum = sqlite3_column_int(statement, 0);
+		}
+		sqlite3_finalize(statement);
+	}
+	if (auto_vacuum != 1 /* FULL */)
+	{
+		tf_printf("Enabling auto-vacuum and performing full vacuum.\n");
+		_tf_ssb_db_exec(db, "PRAGMA auto_vacuum = FULL");
+		_tf_ssb_db_exec(db, "VACUUM main");
+		tf_printf("All clean.\n");
+	}
+
 	_tf_ssb_db_exec(db,
 		"CREATE TABLE IF NOT EXISTS messages ("
 		"  author TEXT,"
@@ -196,7 +215,6 @@ void tf_ssb_db_init(tf_ssb_t* ssb)
 	bool need_add_sequence_before_author = true;
 	bool need_convert_timestamp_to_real = false;
 
-	sqlite3_stmt* statement = NULL;
 	if (sqlite3_prepare(db, "PRAGMA table_info(messages)", -1, &statement, NULL) == SQLITE_OK)
 	{
 		int result = SQLITE_OK;

src/ssb.rpc.c

@@ -1188,10 +1188,7 @@ static void _tf_ssb_rpc_delete_blobs_work(uv_work_t* work)
 	tf_ssb_release_db_writer(ssb, db);
 	int64_t duration_ms = (uv_hrtime() - start_ns) / 1000000LL;
 	tf_printf("Deleted %d blobs in %d ms.\n", deleted, (int)duration_ms);
-	if (deleted)
-	{
-		_tf_ssb_rpc_start_delete_blobs(ssb, (int)duration_ms);
-	}
+	_tf_ssb_rpc_start_delete_blobs(ssb, deleted ? (int)duration_ms : (15 * 60 * 1000));
 }
 
 static void _tf_ssb_rpc_delete_blobs_after_work(uv_work_t* work, int status)