LIBDOOR(3LIB) Interface Libraries LIBDOOR(3LIB)

NAME

libdoor - 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
functionality 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 synchronous 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
interfaces.


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(7) for descriptions of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|MT-Level | Safe |
+---------------+-----------------+

SEE ALSO

Intro(3), libc(3LIB), attributes(7)


Stevens, W. Richard. UNIX Network Programming, Volume 2: Interprocess
Communications, 2/e. Tucson, Ariz.: Prentice Hall, 1999.

March 22, 2005 LIBDOOR(3LIB)