From 1b06ca384aec3a61c797294c6b363a3191a74829 Mon Sep 17 00:00:00 2001
From: Coder12a <38924418+Coder12a@users.noreply.github.com>
Date: Sun, 11 Nov 2018 23:48:15 -0600
Subject: [PATCH] Set flushing to false
---
README.md | 52 ++++++++++++++++++++++++++++++++++++++++------------
colddb.lua | 6 ++++--
2 files changed, 44 insertions(+), 14 deletions(-)
diff --git a/README.md b/README.md
index 2535620..a02cfb2 100644
--- a/README.md
+++ b/README.md
@@ -2,20 +2,18 @@ ColdDB
===========
ColdDB is a minetest mod that implements a serverless, asynchronous, NoSQL database engine.
-It provides a key or key-value storage system using plain Lua tables. It also can iterate through the keys.
-It is not required to add this mod to secure.trusted_mods this mod will still work.
+It provides a key or key-value storage system using plain Lua tables, also it can iterate through the keys.
Usage
===========
-Copy *colddb.lua* file to your minetest mod or game. Copy the code from colddb's init file to your mods init file
-Then create a lua file for handling database's or any file you like.
+Copy both *colddb.lua* and *async* files to your minetest mod or game. Copy the code from colddb's init file to your mods init file
Write this code in your lua file.
1. create a directory and link it as a database.
```lua
coldbase = colddb.get_db("mydb")
```
-2. added an extra folder to the directory. every new file will be added to the global tag(folder).
+2. add an extra folder to the directory. every new file will be added to the global tag(folder).
```lua
colddb.add_global_tag(coldbase,"ips")
```
@@ -54,15 +52,15 @@ coldbase.add_to_mem_pool = true
```lua
coldbase.indexes = true
```
-9. only if coldbase.indexes == true. returns the amount of keys are in the indexing file.
+9. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file.
```lua
colddb.get_count(coldbase)
```
-10. only if coldbase.indexes == true. iterates through the indexing file(breaks and ends if it reached the end of the file).
+10. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file).
```lua
colddb.iterate_index_table(coldbase,nil,func_list_keys,nil)
```
-11. adds folders which can be used in other functions that have tag_name arg.
+11. adds a folder which can be used in other functions that have tag_name arg.
```lua
colddb.add_tag(coldbase,"Extra_Folder",{"Extra","Folder"})
```
@@ -110,7 +108,7 @@ minetest.register_chatcommand("ip", {
func = function(name, param)
-- Get the ip record asynchronously.
colddb.get(ip_db,param,nil,function(record)
- -- If record is contains data send it to the player.
+ -- If database contains the record data then send it to the player.
if record then
minetest.chat_send_player(name,string.format("%s:%s",param,record))
else
@@ -143,35 +141,65 @@ API
- **colddb.add_tag(db,name,tag)**
- - **colddb.get_or_add_tag(db,name,tag)**
+ -
+
+ - **colddb.get_or_add_tag(db,name,tag) --> tag_name**
+
+ Returns a tag or creates a new one if does not exist.
- **colddb.remove_tag(db,name)**
- - **colddb.get_count(db,tag_name)**
+ Removes a tag.
+
+ - **colddb.get_count(db,tag_name) --> count**
+
+ Returns the count from the index table file.
- **colddb.iterate_index_table(db,begin_func,func_on_iterate,end_func,args,tag_name)**
- - **begin_func(args)**
+ - function iterates through the index table file.
+
+ - **begin_func(args) --> args**
+
+ - function that is ran before the loop begins.
- **func_on_iterate(key,index,args)**
+ - function that is ran in the for loop.
+
- **end_func(args)**
+
+ - end function that is ran after the for loop ends.
- **colddb.set(db,name,_table,tag_name)**
+ - Writes data to the database. Key-Value.
+
- **colddb.set_key(db,name,tag_name)**
+ - Writes data to the database. Key-nil.
+
- **colddb.get(db,name,tag_name,callback(arg))**
+ - Returns specified data from the database in a callback function.
+
- **colddb.get_key(db,name,tag_name,callback(arg))**
+ - Returns if the key exist in the database.
+
- **colddb.remove(db,name,tag_name)**
+ - Deletes the specified data from the database.
+
- **Database object fields**
- **indexes**
+ - If truth the database makes a indexing file for keys.
+
- **add_to_mem_pool**
+
+ - If truth when you get keys or values it gets cached in the memory for faster access next time.
License
===========
diff --git a/colddb.lua b/colddb.lua
index 07d92a8..5c1e734 100644
--- a/colddb.lua
+++ b/colddb.lua
@@ -324,6 +324,7 @@ function colddb.append_index_table(db,key,tag_name)
local fl = f.file
if f.needs_flushing == true then
fl:flush()
+ f.needs_flushing = false
end
db.indexes_pool[cs].needs_flushing = true
fl:seek("end")
@@ -337,6 +338,7 @@ function colddb.append_index_table(db,key,tag_name)
local fl = f.file
if f.needs_flushing == true then
fl:flush()
+ f.needs_flushing = false
end
db.indexes_pool[cs].needs_flushing = true
local c = 0
@@ -367,7 +369,7 @@ function colddb.get_count(db,tag_name)
local fl = f.file
if f.needs_flushing == true then
fl:flush()
- f.needs_flushing = true
+ f.needs_flushing = false
end
fl:seek("set")
local count = tonumber(fl:read("*l"))
@@ -429,7 +431,7 @@ function colddb.iterate_index_table(db,begin_func,func_on_iterate,end_func,args,
local fl = f.file
if f.needs_flushing == true then
fl:flush()
- f.needs_flushing = true
+ f.needs_flushing = false
end
-- Get count
fl:seek("set")