Node:Portal Files, Next:Profiling, Previous:TCP/IP Networking, Up:Advanced Features
gawk with BSD PortalsSimilar to the /inet special files, if gawk
is configured with the --enable-portals option
(see Compiling gawk for Unix),
then gawk treats
files whose pathnames begin with /p as 4.4 BSD-style portals.
When used with the |& operator, gawk opens the file
for two-way communications. The operating system's portal mechanism
then manages creating the process associated with the portal and
the corresponding communications with the portal's process.