73 lines
2.3 KiB
Groff
73 lines
2.3 KiB
Groff
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.\" (C) Copyright 2016 Craig Small <csmall@enc.com.au>
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.\"
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.\" %%%LICENSE_START(LGPL_2.1+)
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.\" This manual is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU Lesser General Public
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.\" License as published by the Free Software Foundation; either
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.\" version 2.1 of the License, or (at your option) any later version.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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.\" Lesser General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU Lesser General Public
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.\" License along with this library; if not, write to the Free Software
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.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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.\" %%%LICENSE_END
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.\"
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.TH PROCPS_PIDS_NEW 3 2016-04-18 "libproc-2"
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.\" Please adjust this date whenever revising the manpage.
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.\"
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.SH NAME
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procps_pids_new \-
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Create a PID information structure
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.SH SYNOPSIS
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.B #include <proc/procps.h>
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.sp
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.BI "int procps_pids_new(struct procps_pidsinfo **" info ", int " maxitems ", enum pids_item *" items ");"
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.sp
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Link with \fI\-lprocps\fP.
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.SH DESCRIPTION
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.BR procps_pids_new ()
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creates a new PID information structure that be used in subsequent calls to
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.BR procps_pids_read_open (3),
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.BR procps_pids_reset (3),
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.BR procps_pids_sort (3).
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functions. The pointer to \fIinfo\fR will have memory allocated and a structure
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created.
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\fIitems\fR is an array of enums up to \fImaxitems\fR long that selects what
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information about the processed will be stored. \fImaxitems\fR is used to
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allocate memory and must be at least the length of \fIitems\fR but can be more.
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For information about what \fIitems\fR can contain, see the \fBPID ITEMS\fR
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section in
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.BR libproc (3).
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Once the structure is no longer required,
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.BR procps_pids_unref (3)
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should be used to free it.
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.SH RETURN VALUE
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The function returns 0 on success and one of negative values below
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on failure.
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.TP
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.B -EINVAL
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One of the given parameters is incorrect.
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.TP
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.B -ENOMEM
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Unable to allocate memory for the structure.
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.SH VERSIONS
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.B procps_pids_new()
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first appeared in libproc-2 version 0.0.
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.SH SEE ALSO
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.BR libproc (3),
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.BR procps_pids_read_open (3),
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.BR procps_pids_reset (3),
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.BR procps_pids_sort (3),
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.BR procps_pids_unref (3),
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.BR proc (5).
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