2014-07-14 19:37:23 +05:30
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.\" This file describes the readproc interface to the /proc filesystem
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.\"
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.\" Copyright 1996 Helmut Geyer <Helmut.Geyer@iwr.uni-heidelberg.de>
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.\" Copyright 2014 Jaromir Capik <jcapik@redhat.com>
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.\"
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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.\"
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one
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.\"
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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.\"
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.TH READPROC 3 "14 July 2014" "Linux Manpage" "Linux Programmer's Manual"
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.SH NAME
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readproc, freeproc \- read information from next /proc/## entry
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.SH SYNOPSIS
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.B #include <proc/readproc.h>
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.sp
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.BI "proc_t* readproc(PROCTAB *" PT ", proc_t *" return_buf ");"
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.br
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.BI "void freeproc(proc_t *" p ");"
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.SH DESCRIPTION
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.B readproc
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reads the information for the next process matching the criteria
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specified in
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.I PT
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and fills them into a
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.I proc_t
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structure. If
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.I return_buf
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is not NULL, it will use the struct pointed at by
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.IR return_buf .
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Otherwise it will allocate a new
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.I proc_t
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structure and return a pointer to it.
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2014-07-14 19:37:23 +05:30
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Note that (if so specified in
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.IR PT )
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readproc always allocates memory if it fills in the
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.IR environ " or " cmdline
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parts of
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.IR proc_t .
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.B freeproc
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frees all memory allocated for the
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.I proc_t
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struct
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.IR *p .
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The
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.I proc_t
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structure is defined in
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.IR <proc/readproc.h> ,
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please look there for a definition of all fields.
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.SH "RETURN VALUE"
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.B readproc
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returns a pointer to the next
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.I proc_t
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or NULL if there are no more processes left.
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.SH "SEE ALSO"
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.BR openproc (3),
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.BR readproctab (3),
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.BR /usr/include/proc/readproc.h ,
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.BR /proc/#pid/ ,
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.SH "REPORTING BUGS"
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Please send bug reports to
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.UR procps@freelists.org
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.UE
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