glusterfs

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#!/bin/bash
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function fd_available() {
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         for i in {1..65536}; do
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             if [ ! -e /proc/$$/fd/$i ]; then
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                 echo $i;
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                 return 0;
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             fi
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         done
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         return 1;
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}
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function fd_open() {
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         local fd=$1;
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         local mode=$2
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         local path=$3;
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         case $mode in
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             r)
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                 eval "exec $fd<$path";;
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             w)
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                 eval "exec $fd>$path";;
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             rw)
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                 eval "exec $fd<>$path";;
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             *)
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                 false;;
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         esac
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}
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function fd_cat() {
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         local fd=$1;
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         eval "cat <&$fd";
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}
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function fd_write() {
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         local fd=$1;
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         shift;
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         local msg="$@";
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         eval "echo $@ >&$fd";
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}
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function fd_close() {
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         local fd=$1;
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         eval "exec $fd>&-";
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}
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function fd_based_example() {
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    TEST fd=`fd_available`;
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    TEST fd_open $fd "rw" $M0/filename;
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    TEST fd_cat $fd; # print existing stuff
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    TEST fd_write $fd "new stuff"; # append
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    TEST fd_close $fd;
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}
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