Functions
 FunctionDescription
 FD_CLR AVM-only Shall remove the file descriptor fd from the set pointed to by fdsetp.
 FD_ISSET AVM-only Shall evaluate to non-zero if the file descriptor fd is a member of the set pointed to by fdsetp, and shall evaluate to zero otherwise.
 FD_SET AVM-only Shall add the file descriptor fd to the set pointed to by fdsetp.
 FD_ZERO AVM-only Shall initialize the descriptor set pointed to by fdsetp to the null set.
 isExceptional AVM-only Test if a socket has an exceptional condition pending.
 isReadable AVM-only Test if a socket is ready for reading.
 isWritable AVM-only Test if a socket is ready for writing.
 select AVM-only Synchronous I/O multiplexing.
Constants
 ConstantDescription
 FD_SETSIZE AVM-only Maximum number of file descriptors in an fd_set structure.
Classes
 ClassDescription
 fd_set AVM-only A structure file/socket descriptors.
 timeval AVM-only A structure containing precise time values.