Code clean up and function rename
This commit is contained in:
Coder12a
parent
69f789e5fd
commit
b700bd5c77
22
README.md
22
README.md
@ -2,7 +2,7 @@ ColdDB
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===========
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ColdDB is a minetest mod that implements a serverless, asynchronous, NoSQL database engine.<br>
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It provides a key or key-value storage system using plain Lua tables, also it can iterate through the keys.<br>
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It provides a key or key-value based storage system using plain Lua tables.<br>
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Usage
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===========
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@ -44,27 +44,23 @@ coldbase.remove("MyKeyAndValue")
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```lua
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coldbase.add_to_mem_pool = true
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```
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7. if indexes is true(false by default). When a key file is created an indexing file stores the key for look-ups. this makes it possible to iterate through keys.
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7. returns the amount of entries from the entry file.
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```lua
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coldbase.indexes = true
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coldbase.get_entry_file_count(name, tag_name)
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```
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8. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file.
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8. iterates through the entry file(breaks and ends if it reaches the end of the file).
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```lua
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coldbase.get_count()
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coldbase.iterate_entry_file(name, begin_func, func_on_iterate, end_func, args, tag_name)
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```
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9. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file).
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```lua
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coldbase.iterate_index_table(nil, func_list_keys, nil)
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```
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10. adds a folder which can be used in other functions that have tag_name arg.
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9. adds a folder which can be used in other functions that have tag_name arg.
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```lua
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coldbase.add_tag("Extra_Folder", {"Extra", "Folder"})
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```
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11. returns the tag name if the tag does not exists it creates one.
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10. returns the tag name if the tag does not exists it creates one.
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```lua
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coldbase.get_or_add_tag("Extra_Folder", {"Extra", "Folder"})
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coldbase.get_or_add_tag("Extra_Folder", {"Extra", "Folder"}, no_new_path)
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```
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12. remove tag by name.
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11. remove tag by name.
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```lua
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coldbase.remove_tag("Extra_Folder")
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```
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336
colddb.lua
336
colddb.lua
@ -1,42 +1,37 @@
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colddb = {}
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local function createDir(directory)
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return minetest.mkdir(directory)
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end
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function colddb.Colddb(directory)
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local directory = string.format("%s/%s/", minetest.get_worldpath(), directory)
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if not createDir(directory) then
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error(string.format("%s is not a directory.", directory))
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function colddb.Colddb(dir)
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local dir = string.format("%s/%s/", minetest.get_worldpath(), dir)
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if not minetest.mkdir(dir) then
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error(string.format("%s is not a directory.", dir))
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end
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local self = {}
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self.db = {
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directory = directory,
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tags = {},
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mem_pool = {},
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mem_pool_del = {},
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indexes_pool = {},
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iterate_queue = {},
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indexes = false,
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add_to_mem_pool = true,
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async = extended_api.Async(),
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}
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local directory = dir
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local tags = {}
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local mem_pool = {}
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local mem_pool_del = {}
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local indexes_pool = {}
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local iterate_queue = {}
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local add_to_mem_pool = true
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local async = extended_api.Async()
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local path_count = {}
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async.priority(150, 250)
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self.db.async.priority(150, 250)
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-- make tables weak so the garbage-collector will remove unused data
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setmetatable(self.db.tags, {__mode = "kv"})
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setmetatable(self.db.mem_pool, {__mode = "kv"})
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setmetatable(self.db.mem_pool_del, {__mode = "kv"})
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setmetatable(self.db.indexes_pool, {__mode = "kv"})
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setmetatable(tags, {__mode = "kv"})
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setmetatable(mem_pool, {__mode = "kv"})
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setmetatable(mem_pool_del, {__mode = "kv"})
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setmetatable(indexes_pool, {__mode = "kv"})
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self.file_Exists = function(name, tag_name)
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local function file_Exists(name, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local f = io.open(string.format("%s%s%s.cold", self.db.directory, t, name), "r")
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local f = io.open(string.format("%s%s%s.cold", directory, t, name), "r")
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if f ~= nil then
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io.close(f)
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return true
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@ -58,7 +53,7 @@ function colddb.Colddb(directory)
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local function delete_lines_func_i(line, i, args)
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local f = args.file
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local om = self.db.indexes_pool[args.cs]
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local om = indexes_pool[args.cs]
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if om and not om.deleted_items[line] then
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f:write(string.format("\n%s", line))
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else
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@ -69,7 +64,7 @@ function colddb.Colddb(directory)
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local function delete_lines_func_end(args)
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local cs = args.cs
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local index = self.db.indexes_pool[cs]
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local index = indexes_pool[cs]
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if index and index.file then
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index.file:close()
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index.file = nil
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@ -83,20 +78,20 @@ function colddb.Colddb(directory)
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os.remove(args.oldfile)
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os.rename(args.copyfile, args.oldfile)
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end
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local pool = self.db.indexes_pool[cs]
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local pool = indexes_pool[cs]
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for i, l in pairs(args.removedlist) do
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pool.deleted_items[i] = nil
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end
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pool.deleting = false
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self.db.indexes_pool[cs] = pool
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indexes_pool[cs] = pool
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end
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args = nil
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end
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local function iterate(func_on_iterate, end_func, count, cs, args)
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local f = self.db.indexes_pool[cs]
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local f = indexes_pool[cs]
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local fl = f.file
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self.db.async.iterate(1, count, function(i)
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async.iterate(1, count, function(i)
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local line = fl:read("*l")
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if args.do_not_skip_removed_items or not f.deleted_items[line] then
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local ar = func_on_iterate(line, i, args)
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@ -105,17 +100,17 @@ function colddb.Colddb(directory)
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return args
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end
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end
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end,function()
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end, function()
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if end_func then
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end_func(args)
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end
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local iterate_queue = self.db.iterate_queue[cs]
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local iterate_queue = iterate_queue[cs]
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if iterate_queue and iterate_queue[1] then
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local copy = iterate_queue[1]
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f = self.db.indexes_pool[cs]
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f = indexes_pool[cs]
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if not f or not f.file then
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self.open_index_table(copy.tag_name)
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f = self.db.indexes_pool[cs]
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f = indexes_pool[cs]
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end
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if copy.begin_func then
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local a = copy.begin_func(copy.args)
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@ -124,52 +119,46 @@ function colddb.Colddb(directory)
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end
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end
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minetest.after(0, iterate, copy.func_on_iterate, copy.end_func, copy.count, copy.cs, copy.args)
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table.remove(self.db.iterate_queue[cs], 1)
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table.remove(iterate_queue[cs], 1)
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return false
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else
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fl:close()
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self.db.iterate_queue[cs] = nil
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iterate_queue[cs] = nil
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end
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self.db.indexes_pool[cs].iterating = false
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indexes_pool[cs].iterating = false
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return false
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end)
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end
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local function load_into_mem(name, _table, tag_name)
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if self.db.add_to_mem_pool then
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if add_to_mem_pool then
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local cs = string.format("%s%s", t, name)
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local mem_pool = self.db.mem_pool[cs]
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if not mem_pool then
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mem_pool = {mem = _table, indexes = self.db.indexes}
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else
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mem_pool.mem = _table
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mem_pool.indexes = self.db.indexes
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end
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self.db.mem_pool[cs] = mem_pool
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mem_pool[cs] = {mem = _table}
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end
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end
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local path_count = {}
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local function _remove_tag(delete_path, prev_dp)
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if path_count[delete_path] and path_count[delete_path] > 0 then
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local pc = path_count[delete_path]
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if pc and pc > 0 then
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minetest.after(1.5, _remove_tag, delete_path)
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return
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elseif path_count[delete_path] and path_count[delete_path] < 1 then
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self.db.mem_pool = {}
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self.db.mem_pool_del = {}
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elseif pc and pc < 1 then
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mem_pool = {}
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mem_pool_del = {}
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os.remove(delete_path)
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path_count[delete_path] = nil
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return
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elseif not path_count[delete_path] then
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elseif not pc then
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path_count[delete_path] = 0
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end
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local list = minetest.get_dir_list(delete_path)
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self.db.async.foreach(list, function(k, v)
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async.foreach(list, function(k, v)
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v = string.format("%s/%s", delete_path, v)
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local err = os.remove(v)
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if err == nil then
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@ -180,20 +169,21 @@ function colddb.Colddb(directory)
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if prev_dp then
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path_count[prev_dp] = path_count[prev_dp] - 1
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end
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if path_count[delete_path] > 0 then
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if pc > 0 then
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minetest.after(1.5, _remove_tag, delete_path)
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else
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self.db.mem_pool = {}
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self.db.mem_pool_del = {}
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mem_pool = {}
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mem_pool_del = {}
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os.remove(delete_path)
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path_count[delete_path] = nil
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end
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end)
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end
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self.add_tag = function(name, tag)
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self.add_tag = function(name, tag, no_new_path)
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local t = ""
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if not self.db.tags[name] then
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self.db.tags[name] = ""
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if not tags[name] then
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tags[name] = ""
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end
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if type(tag) == "table" then
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for key, value in pairs(tag) do
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@ -202,37 +192,46 @@ function colddb.Colddb(directory)
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else
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t = string.format("%s/", tag)
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end
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local test_path = string.format("%s%s%s", self.db.directory, self.db.tags[name], t)
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if not createDir(test_path) then
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tags[name] = string.format("%s%s", tags[name], t)
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if no_new_path then
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return
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end
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local test_path = string.format("%s%s%s", directory, tags[name], t)
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if not minetest.mkdir(test_path) then
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error(string.format("%s is not a directory.", test_path))
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end
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self.db.tags[name] = string.format("%s%s", self.db.tags[name], t)
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end
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self.get_tag = function(name)
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if not name then
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return ""
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end
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local tag = self.db.tags[name]
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local tag = tags[name]
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if tag then
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return tag
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end
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return ""
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end
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self.get_or_add_tag = function(name, tag)
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if not self.db.tags[name] then
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self.add_tag(name, tag)
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self.get_or_add_tag = function(name, tag, no_new_path)
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if not tags[name] then
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self.add_tag(name, tag, no_new_path)
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end
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return name
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end
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self.remove_tag = function(name)
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if self.db.tags[name] then
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local delete_path = string.format("%s%s", self.db.directory, self.db.tags[name])
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if not name then
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local delete_path = directory
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local wc = delete_path:len()
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delete_path = delete_path:sub(0, wc-1)
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self.db.tags[name] = nil
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return
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end
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if tags[name] then
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local delete_path = string.format("%s%s", directory, tags[name])
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local wc = delete_path:len()
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delete_path = delete_path:sub(0, wc-1)
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tags[name] = nil
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local err = os.remove(delete_path)
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if err == nil then
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minetest.after(0.1, _remove_tag, delete_path)
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@ -240,12 +239,12 @@ function colddb.Colddb(directory)
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end
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end
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self.delete_file = function(name, tag_name)
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local function delete_file(name, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local text = string.format("%s%s%s.cold", self.db.directory, t, name)
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local text = string.format("%s%s%s.cold", directory, t, name)
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local err, msg = os.remove(text)
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if err == nil then
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@ -253,12 +252,12 @@ function colddb.Colddb(directory)
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end
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end
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self.load_table = function(name, tag_name)
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local function load_table(name, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local f = io.open(string.format("%s%s%s.cold", self.db.directory, t, name), "r")
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local f = io.open(string.format("%s%s%s.cold", directory, t, name), "r")
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if f then
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local data = minetest.deserialize(f:read("*a"))
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f:close()
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@ -267,28 +266,28 @@ function colddb.Colddb(directory)
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return nil
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end
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self.save_table = function(name, _table, tag_name)
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local function save_table(name, _table, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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return minetest.safe_file_write(string.format("%s%s%s.cold", self.db.directory, t, name), minetest.serialize(_table))
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return minetest.safe_file_write(string.format("%s%s%s.cold", directory, t, name), minetest.serialize(_table))
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end
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self.save_key = function(name, tag_name)
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local function save_key(name, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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return minetest.safe_file_write(string.format("%s%s%s.cold", self.db.directory, t, name), "")
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return minetest.safe_file_write(string.format("%s%s%s.cold", directory, t, name), "")
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end
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self.load_key = function(name, tag_name)
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local function load_key(name, tag_name)
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local t = ""
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local f = io.open(string.format("%s%s%s.cold", self.db.directory, t, name), "r")
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local f = io.open(string.format("%s%s%s.cold", directory, t, name), "r")
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if f then
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f:close()
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return true
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@ -296,31 +295,13 @@ function colddb.Colddb(directory)
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return false
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end
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self.delete_index_table = function(tag_name)
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self.delete_entries = function(name ,_lines, tag_name)
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local t = ""
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local name = "æIndex_table"
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local p = string.format("%s%sæIndex_table.cold", self.db.directory, t)
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if self.file_Exists(name, tag_name) then
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local err, msg = os.remove(p)
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if err == nil then
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print(string.format("error removing db data %s error message: %s", p, msg))
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end
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return true
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end
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return false
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end
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self.delete_lines = function(_lines, tag_name)
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local t = ""
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local name = "æIndex_table"
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if tag_name then
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t = self.get_tag(tag_name)
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end
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local cs = string.format("%s%s", t, name)
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local f = self.db.indexes_pool[cs]
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local f = indexes_pool[cs]
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local k = type(_lines)
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if k == "string" then
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f.deleted_items[_lines] = true
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@ -330,33 +311,32 @@ function colddb.Colddb(directory)
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end
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end
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if not f.deleting then
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self.db.indexes_pool[cs].deleting = false
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indexes_pool[cs].deleting = false
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end
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if f and f.file and not f.deleting then
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self.db.indexes_pool[cs].deleting = true
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indexes_pool[cs].deleting = true
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if f.needs_flushing == true then
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f.file:flush()
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self.db.indexes_pool[cs].needs_flushing = false
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indexes_pool[cs].needs_flushing = false
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end
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local oldfile = string.format("%s%sæIndex_table.cold", self.db.directory, t)
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local copyfile = string.format("%s%sæIndex_table.cold.replacer", self.db.directory, t)
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local oldfile = string.format("%s%s%s.cold", directory, t, name)
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local copyfile = string.format("%s%s%s.cold.replacer", directory, t, name)
|
||||
local args = {cs = cs, oldfile = oldfile, copyfile = copyfile, do_not_skip_removed_items = true}
|
||||
self.db.indexes_pool[cs] = f
|
||||
iterate_index_table(delete_lines_func_begin, delete_lines_func_i, delete_lines_func_end, args, tag_name)
|
||||
indexes_pool[cs] = f
|
||||
iterate_index_table(delete_entries_func_begin, delete_entries_func_i, delete_entries_func_end, args, tag_name)
|
||||
end
|
||||
end
|
||||
|
||||
self.open_index_table = function(tag_name)
|
||||
self.open_entry_file = function(name, tag_name)
|
||||
local t = ""
|
||||
local name = "æIndex_table"
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
local fs = self.db.indexes_pool[cs]
|
||||
local fs = indexes_pool[cs]
|
||||
if not fs then
|
||||
local p = string.format("%s%sæIndex_table.cold", self.db.directory, t)
|
||||
if not self.file_Exists(name,tag_name) then
|
||||
local p = string.format("%s%s%s.cold", directory, t, name)
|
||||
if not file_Exists(name,tag_name) then
|
||||
local f = io.open(p, "w")
|
||||
if f then
|
||||
f:seek("set")
|
||||
@ -366,7 +346,7 @@ function colddb.Colddb(directory)
|
||||
end
|
||||
local f = io.open(p, "r+")
|
||||
if f then
|
||||
self.db.indexes_pool[cs] = {file = f, needs_flushing = false, deleted_items = {}, iterating = false}
|
||||
indexes_pool[cs] = {file = f, needs_flushing = false, deleted_items = {}, iterating = false}
|
||||
return f
|
||||
end
|
||||
return nil
|
||||
@ -376,14 +356,13 @@ function colddb.Colddb(directory)
|
||||
return nil
|
||||
end
|
||||
|
||||
self.append_index_table = function(key, tag_name)
|
||||
self.append_entry_file = function(name, key, tag_name)
|
||||
local t = ""
|
||||
local name = "æIndex_table"
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
local f = self.db.indexes_pool[cs]
|
||||
local f = indexes_pool[cs]
|
||||
local k = type(key)
|
||||
if f and f.file and k == "string" then
|
||||
local fl = f.file
|
||||
@ -391,7 +370,7 @@ function colddb.Colddb(directory)
|
||||
fl:flush()
|
||||
f.needs_flushing = false
|
||||
end
|
||||
self.db.indexes_pool[cs].needs_flushing = true
|
||||
indexes_pool[cs].needs_flushing = true
|
||||
fl:seek("end")
|
||||
fl:write(string.format("\n%s", key))
|
||||
fl:seek("set")
|
||||
@ -406,7 +385,7 @@ function colddb.Colddb(directory)
|
||||
fl:flush()
|
||||
f.needs_flushing = false
|
||||
end
|
||||
self.db.indexes_pool[cs].needs_flushing = true
|
||||
indexes_pool[cs].needs_flushing = true
|
||||
local c = 0
|
||||
for i in pairs(key) do
|
||||
fl:seek("end")
|
||||
@ -424,14 +403,17 @@ function colddb.Colddb(directory)
|
||||
end
|
||||
end
|
||||
|
||||
self.get_count = function(tag_name)
|
||||
self.get_entry_file_count = function(name, tag_name)
|
||||
local t = ""
|
||||
local name = "æIndex_table"
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s",t,name)
|
||||
local f = self.db.indexes_pool[cs]
|
||||
local cs = string.format("%s%s", t, name)
|
||||
local f = indexes_pool[cs]
|
||||
if not f or not f.file then
|
||||
self.open_entry_file(name, tag_name)
|
||||
f = indexes_pool[cs]
|
||||
end
|
||||
if f and f.file then
|
||||
local fl = f.file
|
||||
if f.needs_flushing == true then
|
||||
@ -446,20 +428,19 @@ function colddb.Colddb(directory)
|
||||
return nil
|
||||
end
|
||||
|
||||
self.iterate_index_table = function(begin_func, func_on_iterate, end_func, args, tag_name)
|
||||
self.iterate_entry_file = function(name, begin_func, func_on_iterate, end_func, args, tag_name)
|
||||
local t = ""
|
||||
local name = "æIndex_table"
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
local f = self.db.indexes_pool[cs]
|
||||
local f = indexes_pool[cs]
|
||||
if not f or not f.file then
|
||||
self.open_index_table(tag_name)
|
||||
f = self.db.indexes_pool[cs]
|
||||
self.open_entry_file(tag_name)
|
||||
f = indexes_pool[cs]
|
||||
end
|
||||
if f and f.file and self.db.indexes_pool[cs].iterating == false then
|
||||
self.db.indexes_pool[cs].iterating = true
|
||||
if f and f.file and indexes_pool[cs].iterating == false then
|
||||
indexes_pool[cs].iterating = true
|
||||
local fl = f.file
|
||||
if f.needs_flushing == true then
|
||||
fl:flush()
|
||||
@ -482,7 +463,7 @@ function colddb.Colddb(directory)
|
||||
if c < 1 then
|
||||
-- If theres nothing to index then return
|
||||
end_func(args)
|
||||
self.db.indexes_pool[cs].iterating = false
|
||||
indexes_pool[cs].iterating = false
|
||||
return false
|
||||
end
|
||||
-- Start iterating the index table
|
||||
@ -496,11 +477,11 @@ function colddb.Colddb(directory)
|
||||
-- If theres nothing to index then return
|
||||
return false
|
||||
end
|
||||
if not self.db.iterate_queue[cs] then
|
||||
self.db.iterate_queue[cs] = {}
|
||||
if not iterate_queue[cs] then
|
||||
iterate_queue[cs] = {}
|
||||
end
|
||||
local _table = {begin_func = begin_func, func_on_iterate = func_on_iterate, end_func = end_func, count = c, cs = cs, tag_name = tag_name, args = args}
|
||||
table.insert(self.db.iterate_queue[cs], _table)
|
||||
table.insert(iterate_queue[cs], _table)
|
||||
end
|
||||
end
|
||||
|
||||
@ -509,24 +490,14 @@ function colddb.Colddb(directory)
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
if self.db.indexes and not self.file_Exists(name,tag_name) then
|
||||
self.db.async.queue_task(function()
|
||||
local cs2 = string.format("%s%s", t , "æIndex_table")
|
||||
local om = self.db.indexes_pool[cs2]
|
||||
if not self.file_Exists("æIndex_table", tag_name) or not (om and om.file) then
|
||||
self.open_index_table(tag_name)
|
||||
end
|
||||
self.append_index_table(name, tag_name)
|
||||
async.queue_task(function()
|
||||
save_table(name, _table, tag_name)
|
||||
end)
|
||||
end
|
||||
self.db.async.queue_task(function()
|
||||
self.save_table(name, _table, tag_name)
|
||||
end)
|
||||
if self.db.add_to_mem_pool then
|
||||
if add_to_mem_pool then
|
||||
load_into_mem(name, _table, tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
self.db.mem_pool_del[cs] = nil
|
||||
mem_pool_del[cs] = nil
|
||||
end
|
||||
|
||||
self.set_key = function(name, tag_name)
|
||||
@ -534,24 +505,14 @@ function colddb.Colddb(directory)
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
if self.db.indexes and not self.file_Exists(name, tag_name) then
|
||||
self.db.async.queue_task(function()
|
||||
local cs2 = string.format("%s%s", t, "æIndex_table")
|
||||
local om = self.db.indexes_pool[cs2]
|
||||
if not self.file_Exists("æIndex_table", tag_name) or not (om and om.file) then
|
||||
self.open_index_table(tag_name)
|
||||
end
|
||||
self.append_index_table(name, tag_name)
|
||||
async.queue_task(function()
|
||||
save_key(name, tag_name)
|
||||
end)
|
||||
end
|
||||
self.db.async.queue_task(function()
|
||||
self.save_key(name, tag_name)
|
||||
end)
|
||||
if self.db.add_to_mem_pool then
|
||||
if add_to_mem_pool then
|
||||
load_into_mem(name, "", tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
self.db.mem_pool_del[cs] = nil
|
||||
mem_pool_del[cs] = nil
|
||||
end
|
||||
|
||||
self.get = function(name, tag_name, callback)
|
||||
@ -560,39 +521,39 @@ function colddb.Colddb(directory)
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
if self.db.mem_pool_del[cs] then
|
||||
if mem_pool_del[cs] then
|
||||
if callback then
|
||||
callback(nil)
|
||||
end
|
||||
return nil
|
||||
end
|
||||
if callback then
|
||||
self.db.async.queue_task(function()
|
||||
local pm = self.db.mem_pool[cs]
|
||||
async.queue_task(function()
|
||||
local pm = mem_pool[cs]
|
||||
if pm then
|
||||
return pm.mem
|
||||
else
|
||||
local _table = self.load_table(name, tag_name)
|
||||
local _table = load_table(name, tag_name)
|
||||
if _table then
|
||||
load_into_mem(name, _table, tag_name)
|
||||
return _table
|
||||
end
|
||||
end
|
||||
self.db.mem_pool_del[cs] = true
|
||||
mem_pool_del[cs] = true
|
||||
return nil
|
||||
end,callback)
|
||||
else
|
||||
local pm = self.db.mem_pool[cs]
|
||||
local pm = mem_pool[cs]
|
||||
if pm then
|
||||
return pm.mem
|
||||
else
|
||||
local _table = self.load_table(name, tag_name)
|
||||
local _table = load_table(name, tag_name)
|
||||
if _table then
|
||||
load_into_mem(name, _table, tag_name)
|
||||
return _table
|
||||
end
|
||||
end
|
||||
self.db.mem_pool_del[cs] = true
|
||||
mem_pool_del[cs] = true
|
||||
return nil
|
||||
end
|
||||
end
|
||||
@ -603,43 +564,43 @@ function colddb.Colddb(directory)
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
if self.db.mem_pool_del[cs] then
|
||||
if mem_pool_del[cs] then
|
||||
if callback then
|
||||
callback(false)
|
||||
end
|
||||
return false
|
||||
end
|
||||
if callback then
|
||||
self.db.async.queue_task(function()
|
||||
async.queue_task(function()
|
||||
local t = ""
|
||||
if tag_name then
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local pm = self.db.mem_pool[cs]
|
||||
local pm = mem_pool[cs]
|
||||
if pm then
|
||||
return true
|
||||
else
|
||||
local bool = self.load_key(name, tag_name)
|
||||
local bool = load_key(name, tag_name)
|
||||
if bool then
|
||||
load_into_mem(name, bool, tag_name)
|
||||
return bool
|
||||
end
|
||||
end
|
||||
self.db.mem_pool_del[cs] = true
|
||||
mem_pool_del[cs] = true
|
||||
return nil
|
||||
end,callback)
|
||||
else
|
||||
local pm = self.db.mem_pool[cs]
|
||||
local pm = mem_pool[cs]
|
||||
if pm then
|
||||
return true
|
||||
else
|
||||
local bool = self.load_key(name, tag_name)
|
||||
local bool = load_key(name, tag_name)
|
||||
if bool then
|
||||
load_into_mem(name, bool, tag_name)
|
||||
return bool
|
||||
end
|
||||
end
|
||||
self.db.mem_pool_del[cs] = true
|
||||
mem_pool_del[cs] = true
|
||||
return nil
|
||||
end
|
||||
end
|
||||
@ -650,19 +611,10 @@ function colddb.Colddb(directory)
|
||||
t = self.get_tag(tag_name)
|
||||
end
|
||||
local cs = string.format("%s%s", t, name)
|
||||
self.db.mem_pool[cs] = nil
|
||||
self.db.mem_pool_del[cs] = true
|
||||
if self.db.indexes and self.file_Exists("æIndex_table", tag_name) then
|
||||
self.db.async.queue_task(function()
|
||||
local cs2 = string.format("%s%s", t, "æIndex_table")
|
||||
if not (self.db.indexes_pool[cs2] and self.db.indexes_pool[cs2].file) then
|
||||
self.open_index_table(tag_name)
|
||||
end
|
||||
self.delete_lines(name, tag_name)
|
||||
end)
|
||||
end
|
||||
self.db.async.queue_task(function()
|
||||
self.delete_file(name, tag_name)
|
||||
mem_pool[cs] = nil
|
||||
mem_pool_del[cs] = true
|
||||
async.queue_task(function()
|
||||
delete_file(name, tag_name)
|
||||
end)
|
||||
end
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user