boundedbuffer.h - thread-safe bounded buffer
cacheFns.h - functions used for determining victim files
clientApi.h - given API for the client
fileparser.h - key: value file parser
filesystemApi.h - core of the in-memory file storage system (read, write, insert, delete, lock/unlock operations)
icl_hash.h - hash table implementation from Keith Seymour's proxy library code (full copyright notice in icl_hash.c)
log.h - logging system
requestCode.h - macros defining client request codes
responseCode.h - macros defining server status response codes
scerrhand.h - macros for handling errors from system calls
misc.h - miscellaneous utility functions and macros
clientServerProtocol.h - macros related to the communication protocol between clients and the server
clientInternals.h - functions shared both by the client API primitives and the higher-level functionalities in client.c