- 授权协议: BSD
- 开发语言: Lua
- 操作系统: 跨平台
- 软件首页: http://luajit.io/
软件介绍
Luajit IO 是一个纯 Lua 的 IO 框架,提供 C 的高效率,简单但强大的设计,得益于 luajit 这个 JIT 引擎。可用来开发 TCP/UDP 服务器程序。
下面是连接 redis 的示例代码:
local ffi = require"ffi"
local null = ffi.new("void*")
local redis = require "resty.redis"
local function test_redis(req, rsp)
local red = redis:new()
-- red:set_timeout(1000) -- 1 sec
-- or connect to a unix domain socket file listened
-- by a redis server:
-- local ok, err = red:connect("unix:/path/to/redis.sock")
local ok, err = red:connect("127.0.0.1", 6379)
if not ok then
rsp:say("failed to connect: ", err)
return
end
ok, err = red:set("dog", "an animal")
if not ok then
rsp:say("failed to set dog: ", err)
return
end
rsp:say("set result: ", ok)
local res, err = red:get("dog")
if not res then
rsp:say("failed to get dog: ", err)
return
end
if res == null then
rsp:say("dog not found.")
return
end
rsp:say("dog: ", res)
red:init_pipeline()
red:set("cat", "Marry")
red:set("horse", "Bob")
red:get("cat")
red:get("horse")
local results, err = red:commit_pipeline()
if not results then
rsp:say("failed to commit the pipelined requests: ", err)
return
end
for i, res in ipairs(results) do
if type(res) == "table" then
if not res[1] then
rsp:say("failed to run command ", i, ": ", res[2])
else
-- process the table value
end
else
-- process the scalar value
end
end
-- put it into the connection pool of size 100,
-- with 10 seconds max idle time
local ok, err = red:set_keepalive(10000, 100)
if not ok then
rsp:say("failed to set keepalive: ", err)
return
end
-- or just close the connection right away:
-- local ok, err = red:close()
-- if not ok then
-- rsp:say("failed to close: ", err)
-- return
-- end
end
return test_redis
Programming in Haskell
Graham Hutton / Cambridge University Press / 2007-1-18 / GBP 34.99
Haskell is one of the leading languages for teaching functional programming, enabling students to write simpler and cleaner code, and to learn how to structure and reason about programs. This introduc......一起来看看 《Programming in Haskell》 这本书的介绍吧!
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