LIBDOOR(3LIB)LIBDOOR(3LIB)NAMElibdoor - doors library
SYNOPSIS
cc [ flag... ] file... [ library... ]
#include <door.h>
DESCRIPTION
Historically, functions in this library provided programmatic access to
doors, including the ability to create and call them. This functional‐
ity now resides in libc(3LIB).
Doors are a fast light-weight RPC mechanism for secure control transfer
between processes on the same machine. Conceptually, a thread in one
process can issue a call using a door descriptor that causes code to be
executed in another process and then returns using the traditional syn‐
chronous RPC model. Doors can also be used to pass data and file
descriptors between processes.
This library is maintained to provide backward compatibility for both
runtime and compilation environments. The shared object is implemented
as a filter on libc.so.1. New application development need not specify
-ldoor.
INTERFACES
The shared object libdoor.so.1 provides the public interfaces defined
below. See Intro(3) for additional information on shared object inter‐
faces.
door_bind door_call
door_create door_cred
door_info door_return
door_revoke door_server_create
door_ucred door_unbind
FILES
/lib/libdoor.so.1
shared object
/lib/64/libdoor.so.1
64-bit shared object
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌───────────────┬─────────────────┐
│ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
│MT-Level │ Safe │
└───────────────┴─────────────────┘
SEE ALSOIntro(3), libc(3LIB), attributes(5)
Stevens, W. Richard. UNIX Network Programming, Volume 2: Interprocess
Communications, 2/e. Tucson, Ariz.: Prentice Hall, 1999.
Mar 22, 2005 LIBDOOR(3LIB)
