Add: use_async function

colddb.lua

@@ -12,6 +12,7 @@ function colddb.Colddb(dir)
 	local mem_pool_del = {}
 	local add_to_mem_pool = true
 	local async = async.Async()
+	local use_async = true
 	
 	async.priority(150, 250)
 	
@@ -53,6 +54,10 @@ function colddb.Colddb(dir)
 		return add_to_mem_pool
 	end
 
+	self.use_async = function(value)
+		use_async = value
+	end
+	
 	local function file_exists(name)
 		local f = io.open(string.format("%s/%s.cold", directory, name), "r")
 		if f ~= nil then 
@@ -79,7 +84,7 @@ function colddb.Colddb(dir)
 		
 		local err, msg = os.remove(text) 
 		if err == nil then 
-			print(string.format("error removing db data %s error message: %s", text, msg))
+			minetest.log(string.format("error removing db data %s error message: %s", text, msg))
 		end
 	end
 	
@@ -117,11 +122,17 @@ function colddb.Colddb(dir)
 	end
 	
 	self.save_mem = function(name)
-		async.queue_task(function() 
+		if use_async then
+			async.queue_task(function() 
+				if mem_pool[name] ~= nil then
+					save_table(name, mem_pool[name].mem)
+				end
+			end)
+		else
 			if mem_pool[name] ~= nil then
 				save_table(name, mem_pool[name].mem)
 			end
-		end)
+		end
 		
 		mem_pool_del[name] = nil
 	end
@@ -132,9 +143,14 @@ function colddb.Colddb(dir)
 	end
 
 	self.set = function(name, _table)
-		async.queue_task(function() 
+		if use_async then
+			async.queue_task(function() 
+				save_table(name, _table)
+			end)
+		else
 			save_table(name, _table)
-		end)
+		end
+
 		if add_to_mem_pool then
 			load_into_mem(name, _table)
 		end
@@ -143,9 +159,14 @@ function colddb.Colddb(dir)
 	end
 
 	self.set_key = function(name)
-		async.queue_task(function() 
+		if use_async then
+			async.queue_task(function() 
+				save_key(name)
+			end)
+		else
 			save_key(name)
-		end)
+		end
+
 		if add_to_mem_pool then
 			load_into_mem(name, "")
 		end
@@ -231,9 +252,14 @@ function colddb.Colddb(dir)
 	self.remove = function(name)
 		mem_pool[name] = nil
 		mem_pool_del[name] = true
-		async.queue_task(function()
+		
+		if use_async then
+			async.queue_task(function()
+				delete_file(name)
+			end)
+		else
 			delete_file(name)
-		end)
+		end
 	end
 	
 	return self