vanilla_driver是Erlang內建的驅動,用於高效讀取檔案控制代碼或者檔名,官方的文件沒記載.

我來挖掘下:

[email protected]:~# cat >>hello.txt
hello
world
CTRL+D

[email protected]:~# erl
Erlang R13B04 (erts-5.7.5)  [smp:2:2] [rq:2] [async-threads:0] [hipe] [kernel-poll:false]

Eshell V5.7.5  (abort with ^G)
1>  erlang:open_port("hello.txt", [stream,line, in,eof]).
#Port<0.498>
2>  flush(). 
Shell got {#Port<0.498>,{data,{eol,"hello"}}}
Shell got {#Port<0.498>,{data,{eol,"world"}}}
Shell got {#Port<0.498>,eof}
ok
3> 

高效無毒!

Post Footer automatically generated by wp-posturl plugin for wordpress.