#!/bin/sh
#
# $Header: agentok.sh 14-apr-2005.03:01:04 sksaha Exp $
#
# agentok.sh
#
# Copyright (c) 2002, 2005, Oracle. All rights reserved.  
#
#    NAME
#      agentok.sh - determines if adequate resources are available for agent
#
#    DESCRIPTION
#      Performs a series of tests to determin whether adequate resources like
#      swap space etc. are available. This is so that the agent does not enter
#      a thrashing scenario and quit.
#
#    NOTES
#      <other useful comments, qualifications, etc.>
#
#    MODIFIED   (MM/DD/YY)
#    sksaha      04/14/05 - Evaluate swap space using free in linux 
#    njagathe    09/16/03 - Reset LC_ALL to prevent locale issues with 
#    njagathe    09/02/02 - Add PATH setting
#    vnukal      08/23/02 - vnukal_bug-2505784
#    vnukal      08/23/02 - review comments
#    vnukal      08/09/02 - Creation
#

PATH=/usr/sbin:/bin
export PATH

LC_ALL=C
export LC_ALL

#######################
# SWAP COMPUTATION
#######################

#The following command extracts the total swap space available (in KB)
#according to the 'swap -s' command.

uname=`uname`

if [ "$uname" = "Linux" ]
then
   swapavail=`/usr/bin/free | grep Swap | awk '{print $4}'`
else
   swapavail=`swap -s | cut -f 11 -d ' '  | sed 's/k//' `
fi

# for the time being we hard-code the required swap space. But it should be
# accepted as a parameter when we have adaptive required swap space 
# computation.
# 102400 is 100 MB as units are in KB.
if [ "$EMD_MIN_SWAP_REQUIRED" = "" ]
then
   EMD_MIN_SWAP_REQUIRED=102400
fi


echo -- Swap available is $swapavail --

if [ "$swapavail" -lt "$EMD_MIN_SWAP_REQUIRED" ]
then
   echo -- `date` Insufficient swap for starting agent. --
   exit 1
else
   echo -- `date` Sufficient swap space found. --
fi

## DONE SWAP COMPUTATION TEST

# Additional tests are added here

exit 0