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-rw-r--r--tests/fileio.rc61
1 files changed, 61 insertions, 0 deletions
diff --git a/tests/fileio.rc b/tests/fileio.rc
new file mode 100644
index 00000000000..58871b3b97a
--- /dev/null
+++ b/tests/fileio.rc
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+function fd_available() {
+ for i in {1..65536}; do
+ if [ ! -e /proc/$$/fd/$i ]; then
+ echo $i;
+ return 0;
+ fi
+ done
+
+ return 1;
+}
+
+function fd_open() {
+ local fd=$1;
+ local mode=$2
+ local path=$3;
+
+ case $mode in
+ r)
+ eval "exec $fd<$path";;
+ w)
+ eval "exec $fd>$path";;
+ rw)
+ eval "exec $fd<>$path";;
+ *)
+ false;;
+ esac
+}
+
+
+function fd_cat() {
+ local fd=$1;
+
+ eval "cat <&$fd";
+}
+
+
+function fd_write() {
+ local fd=$1;
+ shift;
+ local msg="$@";
+
+ eval "echo $@ >&$fd";
+}
+
+
+function fd_close() {
+ local fd=$1;
+
+ eval "exec $fd>&-";
+}
+
+
+function fd_based_example() {
+ TEST fd=`fd_available`;
+ TEST fd_open $fd "rw" $M0/filename;
+ TEST fd_cat $fd; # print existing stuff
+ TEST fd_write $fd "new stuff"; # append
+ TEST fd_close $fd;
+}