sandbox -> .graveyard

1 files changed, 0 insertions, 103 deletions

diff --git a/sandbox/hyper/process/spawn b/sandbox/hyper/process/spawn
deleted file mode 100755
index 65e94d86..00000000
--- a/sandbox/hyper/process/spawn
+++ /dev/null
@@ -1,103 +0,0 @@
-#! /bin/sh
-#
-# [sh -x] spawn [command [argument ...]]
-#
-# export id to create&destroy or reuse the working directory //proc/$id/.
-# this feature is for debug only and marked as deprecated, so don't rely
-# on it too hard.
-#
-spawn() {
-  set -euf
-
-  # establish working subdirectory in //proc.  we're mking only
-  # transient dirs, i.e. if we mkdir, then we also defer rmdir.
-  if test -n "${id-}"; then
-    : "using id=$id from env"
-    wd=$pd/$id
-    if ! test -d $wd; then
-      : "make transient $wd/"
-      mkdir $wd
-      defer rmdir $wd
-    elif ! test `ls $wd | wc -l` = 0; then
-      : "$wd/ is not empty!"
-      exit 23
-    else
-      : "reuse existing $wd/"
-    fi
-  else
-    id=`cd $pd && mktemp -d XXXXXXXXXXXXXXXX`
-    wd=$pd/$id
-    defer rmdir $wd
-    : "made transient $wd/"
-  fi
-
-  # change to //proc working directory
-  cwd="$PWD"
-  cd $wd
-  defer cd $cwd
-
-  # create named pipes for the child process's stdio
-  mkfifo 0 1 2
-  defer rm 0 1 2
-
-  # spawn child process
-  ( : "in $PWD/ spawn ${*:-nothing}"
-    set +x # disable debug output so we don't clobber 2
-    exec 0>&- 1>&- 2>&- 0<>0 1<>1 2<>2
-    cd "$cwd"
-    exec "$@") &
-  pid=$!
-
-  # setup a trap to kill the child process if this (parent) process dies
-  defer kill $pid
-
-  # store misc. info.
-  ln -snf $cwd cwd
-  echo $id >id
-  echo $$ >ppid
-  echo $pid >pid
-  defer rm cwd id pid ppid
-
-  # wait for the child process's 
-  set +e
-  wait $pid
-  code=$?
-  set -e
-
-  # the child is already dead
-  cancel kill $pid
-
-  # return the same way wait did
-  (exit $code)
-}
-
-#
-# defer [command [argument ...]]
-#
-# Defer execution of a command.  Deferred commands are executed in LIFO
-# order immediately before the script terminates.  See (golang's defer
-# statement for more information how this should work).
-#
-defer() {
-  defer="$*${defer+
-$defer}"
-}
-
-#
-# cancel [command [argument ...]]
-#
-# Cancel a deferred command.  The arguments have to match exactly a
-# prior defer call or else chaos and mayhem shall haunt thee and shi-
-#
-cancel() {
-  defer="`echo "$defer" | grep -Fxv "$*"`"
-}
-
-# setup //proc directory
-pd=/tmp/krebs/proc
-mkdir -p $pd
-test -w $pd
-
-# setup deferred execution and spawn command
-trap 'eval "${defer-}"; defer=' EXIT INT TERM
-spawn "$@"