cacheserver's Introduction

RGCacheServer

RGCacheServer is a ruby cache server based on the especifications of Memcached (http://memcached.org/). It´s a shortened version of the original one, as it only implements it´s fundamental functions.

How it works

To get started you should first run the main_server.rb file and then main_client.rb. From then you will start interacting whith the server as the client, via the supported commands that will be described below.

Supported commands

Storage commands

    set: stores the data no matter what
    add: stores the data, only if the server doesn't already hold data for the indicated key
    replace: stores the data, only if the server does already hold data for the indicated key
    append: add the data to an existing key after existing data
    prepend: add the data to an existing key before existing data
    cas: stores the data but only if no one else has updated since the user last fetched it

the expected format is the following:
<command name> <key> <flags> <exptime> <bytes> [noreply]\r\n
After this line, the client sends the data block:
<data block>\r\n

Retrieval commands

    get: retrieves the key, flags, size and data for every sent key
    gets: retrieves the key, flags, size, cas unique id and data for every sent key

the expected format is the following:
<command name> <key>*\r\n

Testing

Inside the spec folder there are some files that test cache's primal functionalities.
There is also a file named "charge_test.rb" that, when executed, will create 10 clients and will make them interact with the Cache Server for 10 seconds

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