xref: /onnv-gate/usr/src/cmd/perl/contrib/Sun/Solaris/Project/pod/Project.pod (revision 12388:1bc8d55b0dfd)

#
# Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
#

#
# Sun::Solaris::Project documentation.
#

=head1 NAME

Sun::Solaris::Project - Perl interface to Projects

=head1 SYNOPSIS

 use Sun::Solaris::Project qw(:ALL);
 my $projid = getprojid();

This module provides wrappers for the Project-related system calls and the
C<libproject(3LIB)> library. Also provided are constants from the various
Project-related headers.

=head2 Constants

C<MAXPROJID>, C< PROJNAME_MAX>, C<PROJF_PATH>, C<PROJECT_BUFSZ>,
C<SETPROJ_ERR_TASK>, and C<SETPROJ_ERR_POOL>.

=head2 Functions

B<C<getprojid()>>

This function returns the numeric project ID of the calling process or C<undef>
if the underlying C<getprojid(2)> system call is unsuccessful.

B<C<setproject($project, $user, $flags)>>

If C<$user> is a member of the project specified by C<$project>,
C<setproject()> creates a new task and associates the appropriate resource
controls with the process, task, and project. This function returns 0 on
success. If the the underlying task creation fails, C<SETPROJ_ERR_TASK> is
returned. If pool assignment fails, C<SETPROJ_ERR_POOL> is returned. If any
resource attribute assignments fail, an integer value corresponding to the
offset of the failed attribute assignment in the project database is returned.
See C<setproject(3PROJECT)>.

B<C<activeprojects()>>

This function returns a list of the currently active projects on the system.
Each value in the list is the numeric ID of a currently active project.

B<C<getprojent()>>

This function returns the next entry from the project database. When called in
a scalar context, C<getprojent()> returns only the name of the project. When
called in a list context, C<getprojent()> returns a 6-element list consisting
of:

 ($name, $projid, $comment, \@users, \@groups, $attr)

C<\@users> and C<\@groups> are returned as arrays containing the appropriate
user or project lists. On end-of-file C<undef> is returned.

B<C<setprojent()>>

This function rewinds the project database to the beginning of the file.

B<C<endprojent()>>

This function closes the project database.

B<C<getprojbyname($name)>>

This function searches the project database for an entry with the specified
name. It returns a 6-element list as returned by C<getprojent()> if the entry
is found and C<undef> if it cannot be found.

B<C<getprojbyid($id)>>

This function searches the project database for an entry with the specified
ID. It returns a 6-element list as returned by C<getprojent()> if the entry is
found or C<undef> if it cannot be found.

B<C<getdefaultproj($user)>>

This function returns the default project entry for the specified user in the
same format as C<getprojent()>. It returns C<undef> if the user cannot be
found. See C<getdefaultproj(3PROJECT)> for information about the lookup
process.

B<C<fgetprojent($filehandle)>>

This function returns the next project entry from C<$filehandle>, a Perl file
handle that must refer to a previously opened file in C<project(4)> format.
Return values are the same as for C<getprojent()>.

B<C<inproj($user, $project)>>

This function checks whether the specified user is able to use the project.
This function returns C<true> if the user can use the project and C<false>
otherwise. See C<inproj(3PROJECT)>.

B<C<getprojidbyname($project)>>

This function searches the project database for the specified project. It
returns the project ID if the project is found and C<undef> if it is not found.

=head2 Class methods

None.

=head2 Object methods

None.

=head2 Exports

By default nothing is exported from this module. The following tags can be
used to selectively import constants and functions defined in this module:

 :SYSCALLS    getprojid()

 :LIBCALLS    setproject(), activeprojects(), getprojent(), setprojent(),
              endprojent(), getprojbyname(), getprojbyid(), getdefaultproj(),
              fgetprojent(), inproj(), and getprojidbyname()

 :CONSTANTS   MAXPROJID, PROJNAME_MAX, PROJF_PATH, PROJECT_BUFSZ,
              SETPROJ_ERR_TASK, and SETPROJ_ERR_POOL

 :ALL         :SYSCALLS, :LIBCALLS, and :CONSTANTS

=head1 ATTRIBUTES

See C<attributes(5)> for descriptions of the following attributes:

  ___________________________________________________________
 |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
 |_____________________________|_____________________________|
 | Availability                | CPAN (http://www.cpan.org)  |
 |_____________________________|_____________________________|
 | Interface Stability         | Evolving                    |
 |_____________________________|_____________________________|

=head1 SEE ALSO

C<getprojid(2)>, C<getdefaultproj(3PROJECT)>, C<inproj(3PROJECT)>,
C<libproject(3LIB)>, C<setproject(3PROJECT)>, C<project(4)>, C<attributes(5)>