Do not write response when connection is closed

Do not write response when connection is closed.
Rename ConnectionError to ConnectionClosed.

What's Changed

• Rename ConnectionError to ConnectionClosed. Do not write response if … by @hanchiang in #5

Full Changelog: 0.4.0...0.4.1

Add examples, update readme

Added examples to run commands in the readme.

What's Changed

• Add sample commands, update readme. by @hanchiang in #4

Full Changelog: 0.3.0...0.4.0

Integrate new parser which parses redis protocol

Features

Move reading of stream up from client_input.read_input() to handle_connection_helper().
In handle_connection(), wait for more input if input is incomplete send error response and break out of the loop.
In ParsedCommand, remove num_args_in_input, change args from Option<Vec to Vec.
Added an AppError to handle all the errors that may result from the program.

What's Changed

• Feature/integrate new parser by @hanchiang in #3

Full Changelog: 0.2.0...0.3.0

Implement RESP parser

Features

• Implement RESP parser. Not integrated with the main program.

What's Changed

• Feature/parser improvement by @hanchiang in #2

Full Changelog: 0.0.1...0.2.0

First release

Features

• Supported commands: PING, ECHO, GET, SET, SET with expiry
• 1 thread per connection
• Parse RESP buffer by transforming it into a string, parsing it into a vector to collect the command and arguments

To do

• Improve the parsing of RESP input.
• Better separation of concern: Move respond() out of ClientInput
• Replace threads with event loop