Where to put writeVector

[andrewthad]

The wrapper around writev (writeVector) is the second non-socket-specific function that has showed up in this library. It should live in a module that makes it clear that it can be used on not only sockets but also files. In this same module should live the wrappers around write, pwrite, read, and pread. Should lseek (which is specific to block devices and does not work on files) also live here or not? I'm not sure. I'm thinking of:

• Posix
  • Socket (send, recv, etc.)
  • File (lseek, read, write, etc.)
  • Directory (getcwd, etc.)