SIMP server

SIMP server is the lightweight blocking I/O server for SIMP messaging protocol.

Simple Message Protocol (SIMP)

SIMP is an lightweight binary protocol for chat messages.

Connect and Disconnect

This request types can be used to connect to the chat server or disconnection from the chat server.

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| Protocol | Request | Username |          |
| Version  | Type    | length   | Username |
| 1 byte   | 1 byte  | 1 byte   |          |
--------------------------------------------

Message

This type of request can be used to send messages to the chat server.

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| Protocol | Request | Username |          | Message |         |
| Version  | Type    | length   | Username | length  | Message |
| 1 byte   | 1 byte  | 1 byte   |          | 2 bytes |         |
----------------------------------------------------------------

Connect successfully

This is a response from the server after successfully connection established.

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| Protocol | Response | Users   | Users   |
| Version  | Type     | length  | online  |
| 1 byte   | 1 byte   | 2 bytes | current |
-------------------------------------------

User connected and User disconnected

This response types from the server aftre another user connected or disconnected.

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| Protocol | Response | Username |          |
| Version  | Type     | length   | Username |
| 1 byte   | 1 byte   | 1 byte   |          |
---------------------------------------------

Message

This response from the server on another users messages.

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| Protocol | Response | Username |          | Message |         |
| Version  | Type     | length   | Username | length  | Message |
| 1 byte   | 1 byte   | 1 byte   |          | 2 bytes |         |
-----------------------------------------------------------------