vqs

README

VQS (Virtual Queue System)

Intro

Todo!!

File Format (.bin)

File Header 16KB

Data Stored	Bytes	Comments
Magic Num (0x01535156)	4	VQS (0x56, 0x51, 0x53) Followed By 0x01 (v1) in little endianness
Capacity left	4	in bytes
Items Count	4
Next Read Offset	4
Next Write Offset	4
Max Message Size	4
Message Retention Period	4
Message Wait in Seconds	2	long poll duration
Delay in Seconds	2
Visibility Timeout	2
Tags	rest of page size	TagName Null Terminated String TagValue Null Terminated String

• TODO: Later look how to resize files, or use multiple files
• TODO: Page size increase benchmark
• TODO: monitoring capablity for page faults
• TODO: call msync to guarantee disk persist // unix.Msync()
• TODO: add config management
• TODO: add logs and metrics management
• TODO: Better handling
• TODO: better code structuring
• TODO: tests
• TODO: write better serialization and deserialization logic
• TODO: use sync.Pool for object allocations