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\" Copyright (c) 2008 Ed Schouten <[email protected]>
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\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
\" Portable Operating System Interface (POSIX), The Open Group Base
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\" Electrical and Electronics Engineers, Inc and The Open Group.  In the
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\" $FreeBSD: src/lib/libc/gen/posix_spawnattr_init.3,v 1.1.2.1.4.1 2010/06/14 02:09:06 kensmith Exp $
\"
Dd December 20, 2011
Dt POSIX_SPAWNATTR_INIT 3
Os
Sh NAME
Nm posix_spawnattr_init ,
Nm posix_spawnattr_destroy
Nd "initialize and destroy spawn attributes object"
Sh LIBRARY
Lb libc
Sh SYNOPSIS
In spawn.h
Ft int
Fn posix_spawnattr_init "posix_spawnattr_t * attr"
Ft int
Fn posix_spawnattr_destroy "posix_spawnattr_t * attr"
Sh DESCRIPTION
The
Fn posix_spawnattr_init
function initializes a spawn attributes object
Fa attr
with the default value for all of the individual attributes used by the
implementation.
Initializing an already initialized spawn attributes object may cause
memory to be leaked.
Pp
The
Fn posix_spawnattr_destroy
function destroys a spawn attributes object.
A destroyed
Fa attr
attributes object can be reinitialized using
Fn posix_spawnattr_init .
The object should not be used after it has been destroyed.
Pp
A spawn attributes object is of type
Vt posix_spawnattr_t
(defined in
In spawn.h )
and is used to specify the inheritance of process attributes across a
spawn operation.
Pp
The resulting spawn attributes object (possibly modified by setting
individual attribute values), is used to modify the behavior of
Fn posix_spawn
or
Fn posix_spawnp .
After a spawn attributes object has been used to spawn a process by a
call to a
Fn posix_spawn
or
Fn posix_spawnp ,
any function affecting the attributes object (including destruction)
will not affect any process that has been spawned in this way.
Sh RETURN VALUES
Upon successful completion,
Fn posix_spawnattr_init
and
Fn posix_spawnattr_destroy
return zero;
otherwise, an error number is returned to indicate the error.
Sh ERRORS
The
Fn posix_spawnattr_init
function will fail if:
Bl -tag -width Er
It Bq Er ENOMEM
Insufficient memory exists to initialize the spawn file actions object.
El
Sh SEE ALSO
Xr posix_spawn 3 ,
Xr posix_spawnp 3
Sh STANDARDS
The
Fn posix_spawnattr_init
and
Fn posix_spawnattr_destroy
functions conform to
St -p1003.1-2001 .
Sh HISTORY
The
Fn posix_spawnattr_init
and
Fn posix_spawnattr_destroy
functions first appeared in
Fx 8.0
and imported for
Nx 6.0 .
Sh AUTHORS
An Ed Schouten Aq Mt [email protected]

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