Added a contrib dir and idleconn manpage source

contrib/idleconn-manpage/genallman.sh

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+#!/bin/bash
+
+# Generate several manpages at the same time.
+# Copyright (C) 2014-2015 Joao Eriberto Mota Filho <eriberto@debian.org>
+# v0.3, available at https://github.com/eribertomota/genallman
+#
+# You can use this code in the same terms of the BSD-3-clause license or,
+# optionally, in the same terms of the license used in debian/ directory
+# when packaging for Debian or similar.
+#
+# This script uses txt2man. You need 2 files: program_name.txt and
+# program_name.header.
+#
+# The program_name.header must be use this structure:
+#
+# .TH <program_name> "<manpage_level>" "<date>" "<program_name_upper_case> <program_version>" "<program_description>"
+#
+# Example:
+#
+# .TH mac-robber "1" "May 2013" "MAC-ROBBER 1.02" "collects data about allocated files in mounted filesystems"
+
+[ -f /usr/bin/txt2man ] || { echo "ERROR: txt2man not found."; exit; }
+
+for NAME in $(ls | grep header | cut -d'.' -f1)
+do
+    LEVEL=$(cat $NAME.header | cut -d" " -f3 | tr -d '"')
+    cat $NAME.header > $NAME.$LEVEL
+    txt2man $NAME.txt | grep -v '^.TH ' >> $NAME.$LEVEL
+    echo "Generated $NAME.$LEVEL."
+done

contrib/idleconn-manpage/idleconn.header

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+.TH idleconn "1" "Mar 2016" "IDLECONN 0.9.0" "tool for opening any number of idle connections"

contrib/idleconn-manpage/idleconn.txt

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+NAME
+ idleconn - tool for opening any number of idle connections
+
+SYNOPSIS
+ idleconn <server> <port> <numidle>
+
+DESCRIPTION
+ idleconn is part of httperf suite and is useful to simulate a large number
+ of concurrent and idle connections. It can establish a set of persistent
+ connections, each of which generated periodic requests to the server. The
+ effect is that at all times, some of the connections were active while the
+ rest were idle, and these active and idle connection sets kept changing with
+ time. (This paragraph was extracted and adapted from the article "Scalability
+ of Linux Event-Dispatch Mechanisms" (HPL-2000-174), written by Abhishek
+ Chandra and David Mosberger).
+
+OPTIONS
+ server   IP of the server to connect.
+ port     Port used by server.
+ numidle  Number of idle process to be generated.
+
+EXAMPLE
+ This is a simple example how to use idleconn:
+
+    $ ./idleconn 192.168.1.1 80 100
+
+ It would open and maintain 100 idle connections to a web server, listening on
+ port 80, using the IP address 192.168.1.1.
+
+SEE ALSO
+ httperf(1)
+
+AUTHOR
+  The httperf was written by David Mosberger-Tang, Hewlett-Packard Company and Contributors.
+
+  This manual page was written by Joao Eriberto Mota Filho <eriberto@debian.org>
+  for the Debian project (but may be used by others).