---
name: VPP infrastructure library
maintainer:
  - Dave Barach <dave@barachs.net>
features:
  - Abstract device driver ring support
  - Address sanitizer support
  - Altivec, Neon, MMX, AVX2, AVX512 SIMD vector unit support
  - Atomic op support
  - Backtrace support
  - Bitmaps
  - Bounded-index extensible hashing templates
  - C11 safe-string support
  - Cache control primitives, including prefetching
  - C-dynamic arrays (vectors)
  - Circular doubly-linked list support with a head sentinel
  - Contiguous N x fixed block allocator
  - CPU clock based timebase support
  - Doubly-linked list support
  - ELF file parser
  - Endian-order support
  - Error return / reporting support
  - FIFO support
  - Fundamental types, u8, u16, u32, and so on
  - High-performance event logger
  - High-performance memcpy support
  - High-performance mmap-based circular log support
  - High-performance timer-wheel templates
  - Linux socket support
  - Linux sysfs file parsing support
  - Low-level CPU support
  - Mapped pcap file support
  - Memory allocator, "Doug Lea" malloc with a few tweaks
  - Minimal overhead Linux system-call support
  - Multi-architecture setjmp / longjmp support
  - Numerous Unit tests
  - Physical memory allocator support
  - Pools, a high performance fixed block allocation scheme
  - Red/black trees.
  - Rigorously vetted linear congruential random numbers (32 and 64 bit)
  - Serialization / unserialization support
  - SHA256, SHA512 support
  - Simple first-fit virtual space allocator
  - Simple hashing support
  - Simple macro expander
  - Sparse vector support
  - Spinlock support
  - Time Range support
  - Unix / Linux errno support
  - Vector-based printf / scanf equivalents (format, unformat)
  - Warshall's algorithm (positive transitive closure of a relation)
  - XXhash support
description: "VPP's foundation / infrastructure support library.
             The library dates from 2000 and hardly changes anymore.
             Heavily used across vpp, issues are not expected."
state: production
properties: [MULTITHREAD]