System Interfaces: General Information
2.1 Use and Implementation of Interfaces
2.2 The Compilation Environment
2.3 Error Numbers
2.4 Signal Concepts
2.5 Standard I/O Streams
2.6 File Descriptor Allocation
2.7 XSI Interprocess Communication
2.8 Realtime
2.9 Threads
2.10 Sockets
2.11 Data Types
2.12 Status Information