Here is a list of all topics with brief descriptions:

[detail level 1234]

Portability Library
POD Classes
▼Squid Components
Access Controls
▼Server-Side Protocols
HTTP
Server-Side FTP API
WAIS
Passthru
Server-Side WHOIS API
▼ICP
ICPv2 Internals
ICPv3 Internals
▼Server-Side SSL API
Server-Side SSL Internals
Storage Manager
Adaptation
Asynchronous Calls
Asynchronous Jobs
▼Client Streams API
Client Streams Internals
Comm Module
▼Delay Pools API
Delay Pools Internal
▼Error Pages API
Error Page Internals
▼FQDN Cache API
FQDN Cache Internals
▼IP Cache API
IP Cache Internals
Memory Management (Memory Pool Allocator)
Squid Library
Unit Testing
Event Callback Functions
Timeouts
Async-Calls API
Async-Jobs API
Client-Side Logics
Rock Store Rebuild
pinger
IP Interception and Transparent Proxy API
Persistent Connection API
security_file_certgen
SSL certificate generator API
▼Storage Filesystems
AUFS Storage Filesystem (UFS Based)
diskd Storage Filesystem (UFS Based)
▼UFS Storage Filesystem
AUFS Storage Filesystem (UFS Based)
diskd Storage Filesystem (UFS Based)
swap.state File Structure
unlinkd