Problem with Hiredis Binding

[Puming Zhao]

Hi, I'm new in D programming, and does not have much C experience either.  After
reading TDPL book and playing with some sample codes, I came to decide to try
something more `practical`. I began with a Redis client binding from Hiredis C code.
Hiredis is a small lib, and seems very simple to bind to D.

My code on github:

https://github.com/zhaopuming/dredis

But I went into problems that I don't know how to solve. When running example.d I
went into segment fault, and can't get redisReply from a redis command. I tried to
google it but got nothing.

So my question is, could some one with more knowledge in redis or C/D look into my
code and see what's wrong ? Or is there already a Redis binding exists?