Mercurial > hg
view tests/test-convert-p4-filetypes.t @ 26375:3686fa2b8eee
windows: insert file positioning call between reads and writes
fopen() and fdopen() have a unique-to-Windows requirement that
transitions between read and write operations in files opened
in modes r+, w+, and a+ perform a file positioning call
(fsetpos, fseek, or rewind) in between. While the MSDN docs don't
say what will happen if this is not done, observations reveal
that Python raises an IOError with errno 0. Furthermore, I
/think/ this behavior isn't deterministic. But I can reproduce
it reliably with subsequent patches applied that open revlogs
in a+ mode and perform both reads and writes.
This patch introduces a proxy class for file handles opened
in r+, w+, and a+ mode on Windows. The class intercepts calls
and audits whether a file positioning function has been called
between read and write operations. If not, a dummy, no-op seek
to the current file position is performed. This appears to be
sufficient to "trick" Windows into allowing transitions between
read and writes without raising errors.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 27 Sep 2015 18:46:53 -0700 |
parents | c63a09b6b337 |
children | 64ed9f904532 |
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#require p4 execbit symlink $ echo "[extensions]" >> $HGRCPATH $ echo "convert = " >> $HGRCPATH create p4 depot $ P4ROOT=`pwd`/depot; export P4ROOT $ P4AUDIT=$P4ROOT/audit; export P4AUDIT $ P4JOURNAL=$P4ROOT/journal; export P4JOURNAL $ P4LOG=$P4ROOT/log; export P4LOG $ P4PORT=localhost:$HGPORT; export P4PORT $ P4DEBUG=1; export P4DEBUG $ P4CHARSET=utf8; export P4CHARSET start the p4 server $ [ ! -d $P4ROOT ] && mkdir $P4ROOT $ p4d -f -J off -xi >$P4ROOT/stdout 2>$P4ROOT/stderr $ p4d -f -J off >$P4ROOT/stdout 2>$P4ROOT/stderr & $ echo $! >> $DAEMON_PIDS $ trap "echo stopping the p4 server ; p4 admin stop" EXIT wait for the server to initialize $ while ! p4 ; do > sleep 1 > done >/dev/null 2>/dev/null create a client spec $ P4CLIENT=hg-p4-import; export P4CLIENT $ DEPOTPATH=//depot/test-mercurial-import/... $ p4 client -o | sed '/^View:/,$ d' >p4client $ echo View: >>p4client $ echo " $DEPOTPATH //$P4CLIENT/..." >>p4client $ p4 client -i <p4client Client hg-p4-import saved. populate the depot $ TYPES="text binary symlink" $ TYPES="$TYPES text+m text+w text+x text+k text+kx text+ko text+l text+C text+D text+F text+S text+S2" $ TYPES="$TYPES binary+k binary+x binary+kx symlink+k" $ TYPES="$TYPES ctext cxtext ktext kxtext ltext tempobj ubinary uxbinary xbinary xltext xtempobj xtext" not testing these $ #TYPES="$TYPES apple resource unicode utf16 uresource xunicode xutf16" $ for T in $TYPES ; do > T2=`echo $T | tr [:upper:] [:lower:]` > case $T in > apple) > ;; > symlink*) > echo "this is target $T" >target_$T2 > ln -s target_$T file_$T2 > p4 add target_$T2 > p4 add -t $T file_$T2 > ;; > binary*) > $PYTHON -c "file('file_$T2', 'wb').write('this is $T')" > p4 add -t $T file_$T2 > ;; > *) > echo "this is $T" >file_$T2 > p4 add -t $T file_$T2 > ;; > esac > done //depot/test-mercurial-import/file_text#1 - opened for add //depot/test-mercurial-import/file_binary#1 - opened for add //depot/test-mercurial-import/target_symlink#1 - opened for add //depot/test-mercurial-import/file_symlink#1 - opened for add //depot/test-mercurial-import/file_text+m#1 - opened for add //depot/test-mercurial-import/file_text+w#1 - opened for add //depot/test-mercurial-import/file_text+x#1 - opened for add //depot/test-mercurial-import/file_text+k#1 - opened for add //depot/test-mercurial-import/file_text+kx#1 - opened for add //depot/test-mercurial-import/file_text+ko#1 - opened for add //depot/test-mercurial-import/file_text+l#1 - opened for add //depot/test-mercurial-import/file_text+c#1 - opened for add //depot/test-mercurial-import/file_text+d#1 - opened for add //depot/test-mercurial-import/file_text+f#1 - opened for add //depot/test-mercurial-import/file_text+s#1 - opened for add //depot/test-mercurial-import/file_text+s2#1 - opened for add //depot/test-mercurial-import/file_binary+k#1 - opened for add //depot/test-mercurial-import/file_binary+x#1 - opened for add //depot/test-mercurial-import/file_binary+kx#1 - opened for add //depot/test-mercurial-import/target_symlink+k#1 - opened for add //depot/test-mercurial-import/file_symlink+k#1 - opened for add //depot/test-mercurial-import/file_ctext#1 - opened for add //depot/test-mercurial-import/file_cxtext#1 - opened for add //depot/test-mercurial-import/file_ktext#1 - opened for add //depot/test-mercurial-import/file_kxtext#1 - opened for add //depot/test-mercurial-import/file_ltext#1 - opened for add //depot/test-mercurial-import/file_tempobj#1 - opened for add //depot/test-mercurial-import/file_ubinary#1 - opened for add //depot/test-mercurial-import/file_uxbinary#1 - opened for add //depot/test-mercurial-import/file_xbinary#1 - opened for add //depot/test-mercurial-import/file_xltext#1 - opened for add //depot/test-mercurial-import/file_xtempobj#1 - opened for add //depot/test-mercurial-import/file_xtext#1 - opened for add $ p4 submit -d initial Submitting change 1. Locking 33 files ... add //depot/test-mercurial-import/file_binary#1 add //depot/test-mercurial-import/file_binary+k#1 add //depot/test-mercurial-import/file_binary+kx#1 add //depot/test-mercurial-import/file_binary+x#1 add //depot/test-mercurial-import/file_ctext#1 add //depot/test-mercurial-import/file_cxtext#1 add //depot/test-mercurial-import/file_ktext#1 add //depot/test-mercurial-import/file_kxtext#1 add //depot/test-mercurial-import/file_ltext#1 add //depot/test-mercurial-import/file_symlink#1 add //depot/test-mercurial-import/file_symlink+k#1 add //depot/test-mercurial-import/file_tempobj#1 add //depot/test-mercurial-import/file_text#1 add //depot/test-mercurial-import/file_text+c#1 add //depot/test-mercurial-import/file_text+d#1 add //depot/test-mercurial-import/file_text+f#1 add //depot/test-mercurial-import/file_text+k#1 add //depot/test-mercurial-import/file_text+ko#1 add //depot/test-mercurial-import/file_text+kx#1 add //depot/test-mercurial-import/file_text+l#1 add //depot/test-mercurial-import/file_text+m#1 add //depot/test-mercurial-import/file_text+s#1 add //depot/test-mercurial-import/file_text+s2#1 add //depot/test-mercurial-import/file_text+w#1 add //depot/test-mercurial-import/file_text+x#1 add //depot/test-mercurial-import/file_ubinary#1 add //depot/test-mercurial-import/file_uxbinary#1 add //depot/test-mercurial-import/file_xbinary#1 add //depot/test-mercurial-import/file_xltext#1 add //depot/test-mercurial-import/file_xtempobj#1 add //depot/test-mercurial-import/file_xtext#1 add //depot/test-mercurial-import/target_symlink#1 add //depot/test-mercurial-import/target_symlink+k#1 Change 1 submitted. //depot/test-mercurial-import/file_binary+k#1 - refreshing //depot/test-mercurial-import/file_binary+kx#1 - refreshing //depot/test-mercurial-import/file_ktext#1 - refreshing //depot/test-mercurial-import/file_kxtext#1 - refreshing //depot/test-mercurial-import/file_symlink+k#1 - refreshing //depot/test-mercurial-import/file_text+k#1 - refreshing //depot/test-mercurial-import/file_text+ko#1 - refreshing //depot/test-mercurial-import/file_text+kx#1 - refreshing test keyword expansion $ p4 edit file_* target_* //depot/test-mercurial-import/file_binary#1 - opened for edit //depot/test-mercurial-import/file_binary+k#1 - opened for edit //depot/test-mercurial-import/file_binary+kx#1 - opened for edit //depot/test-mercurial-import/file_binary+x#1 - opened for edit //depot/test-mercurial-import/file_ctext#1 - opened for edit //depot/test-mercurial-import/file_cxtext#1 - opened for edit //depot/test-mercurial-import/file_ktext#1 - opened for edit //depot/test-mercurial-import/file_kxtext#1 - opened for edit //depot/test-mercurial-import/file_ltext#1 - opened for edit //depot/test-mercurial-import/file_symlink#1 - opened for edit //depot/test-mercurial-import/file_symlink+k#1 - opened for edit //depot/test-mercurial-import/file_tempobj#1 - opened for edit //depot/test-mercurial-import/file_text#1 - opened for edit //depot/test-mercurial-import/file_text+c#1 - opened for edit //depot/test-mercurial-import/file_text+d#1 - opened for edit //depot/test-mercurial-import/file_text+f#1 - opened for edit //depot/test-mercurial-import/file_text+k#1 - opened for edit //depot/test-mercurial-import/file_text+ko#1 - opened for edit //depot/test-mercurial-import/file_text+kx#1 - opened for edit //depot/test-mercurial-import/file_text+l#1 - opened for edit //depot/test-mercurial-import/file_text+m#1 - opened for edit //depot/test-mercurial-import/file_text+s#1 - opened for edit //depot/test-mercurial-import/file_text+s2#1 - opened for edit //depot/test-mercurial-import/file_text+w#1 - opened for edit //depot/test-mercurial-import/file_text+x#1 - opened for edit //depot/test-mercurial-import/file_ubinary#1 - opened for edit //depot/test-mercurial-import/file_uxbinary#1 - opened for edit //depot/test-mercurial-import/file_xbinary#1 - opened for edit //depot/test-mercurial-import/file_xltext#1 - opened for edit //depot/test-mercurial-import/file_xtempobj#1 - opened for edit //depot/test-mercurial-import/file_xtext#1 - opened for edit //depot/test-mercurial-import/target_symlink#1 - opened for edit //depot/test-mercurial-import/target_symlink+k#1 - opened for edit $ for T in $TYPES ; do > T2=`echo $T | tr [:upper:] [:lower:]` > echo '$Id$' >>file_$T2 > echo '$Header$' >>file_$T2 > echo '$Date$' >>file_$T2 > echo '$DateTime$' >>file_$T2 > echo '$Change$' >>file_$T2 > echo '$File$' >>file_$T2 > echo '$Revision$' >>file_$T2 > echo '$Header$$Header$Header$' >>file_$T2 > done $ ln -s 'target_$Header$' crazy_symlink+k $ p4 add -t symlink+k crazy_symlink+k //depot/test-mercurial-import/crazy_symlink+k#1 - opened for add $ p4 submit -d keywords Submitting change 2. Locking 34 files ... add //depot/test-mercurial-import/crazy_symlink+k#1 edit //depot/test-mercurial-import/file_binary#2 edit //depot/test-mercurial-import/file_binary+k#2 edit //depot/test-mercurial-import/file_binary+kx#2 edit //depot/test-mercurial-import/file_binary+x#2 edit //depot/test-mercurial-import/file_ctext#2 edit //depot/test-mercurial-import/file_cxtext#2 edit //depot/test-mercurial-import/file_ktext#2 edit //depot/test-mercurial-import/file_kxtext#2 edit //depot/test-mercurial-import/file_ltext#2 edit //depot/test-mercurial-import/file_symlink#2 edit //depot/test-mercurial-import/file_symlink+k#2 edit //depot/test-mercurial-import/file_tempobj#2 edit //depot/test-mercurial-import/file_text#2 edit //depot/test-mercurial-import/file_text+c#2 edit //depot/test-mercurial-import/file_text+d#2 edit //depot/test-mercurial-import/file_text+f#2 edit //depot/test-mercurial-import/file_text+k#2 edit //depot/test-mercurial-import/file_text+ko#2 edit //depot/test-mercurial-import/file_text+kx#2 edit //depot/test-mercurial-import/file_text+l#2 edit //depot/test-mercurial-import/file_text+m#2 edit //depot/test-mercurial-import/file_text+s#2 edit //depot/test-mercurial-import/file_text+s2#2 edit //depot/test-mercurial-import/file_text+w#2 edit //depot/test-mercurial-import/file_text+x#2 edit //depot/test-mercurial-import/file_ubinary#2 edit //depot/test-mercurial-import/file_uxbinary#2 edit //depot/test-mercurial-import/file_xbinary#2 edit //depot/test-mercurial-import/file_xltext#2 edit //depot/test-mercurial-import/file_xtempobj#2 edit //depot/test-mercurial-import/file_xtext#2 edit //depot/test-mercurial-import/target_symlink#2 edit //depot/test-mercurial-import/target_symlink+k#2 Change 2 submitted. //depot/test-mercurial-import/crazy_symlink+k#1 - refreshing //depot/test-mercurial-import/file_binary+k#2 - refreshing //depot/test-mercurial-import/file_binary+kx#2 - refreshing //depot/test-mercurial-import/file_ktext#2 - refreshing //depot/test-mercurial-import/file_kxtext#2 - refreshing //depot/test-mercurial-import/file_symlink+k#2 - refreshing //depot/test-mercurial-import/file_text+k#2 - refreshing //depot/test-mercurial-import/file_text+ko#2 - refreshing //depot/test-mercurial-import/file_text+kx#2 - refreshing check keywords in p4 $ grep -H Header file_* file_binary:$Header$ file_binary:$Header$$Header$Header$ file_binary+k:$Header: //depot/test-mercurial-import/file_binary+k#2 $ file_binary+k:$Header: //depot/test-mercurial-import/file_binary+k#2 $$Header: //depot/test-mercurial-import/file_binary+k#2 $Header$ file_binary+kx:$Header: //depot/test-mercurial-import/file_binary+kx#2 $ file_binary+kx:$Header: //depot/test-mercurial-import/file_binary+kx#2 $$Header: //depot/test-mercurial-import/file_binary+kx#2 $Header$ file_binary+x:$Header$ file_binary+x:$Header$$Header$Header$ file_ctext:$Header$ file_ctext:$Header$$Header$Header$ file_cxtext:$Header$ file_cxtext:$Header$$Header$Header$ file_ktext:$Header: //depot/test-mercurial-import/file_ktext#2 $ file_ktext:$Header: //depot/test-mercurial-import/file_ktext#2 $$Header: //depot/test-mercurial-import/file_ktext#2 $Header$ file_kxtext:$Header: //depot/test-mercurial-import/file_kxtext#2 $ file_kxtext:$Header: //depot/test-mercurial-import/file_kxtext#2 $$Header: //depot/test-mercurial-import/file_kxtext#2 $Header$ file_ltext:$Header$ file_ltext:$Header$$Header$Header$ file_symlink:$Header$ file_symlink:$Header$$Header$Header$ file_symlink+k:$Header$ file_symlink+k:$Header$$Header$Header$ file_tempobj:$Header$ file_tempobj:$Header$$Header$Header$ file_text:$Header$ file_text:$Header$$Header$Header$ file_text+c:$Header$ file_text+c:$Header$$Header$Header$ file_text+d:$Header$ file_text+d:$Header$$Header$Header$ file_text+f:$Header$ file_text+f:$Header$$Header$Header$ file_text+k:$Header: //depot/test-mercurial-import/file_text+k#2 $ file_text+k:$Header: //depot/test-mercurial-import/file_text+k#2 $$Header: //depot/test-mercurial-import/file_text+k#2 $Header$ file_text+ko:$Header: //depot/test-mercurial-import/file_text+ko#2 $ file_text+ko:$Header: //depot/test-mercurial-import/file_text+ko#2 $$Header: //depot/test-mercurial-import/file_text+ko#2 $Header$ file_text+kx:$Header: //depot/test-mercurial-import/file_text+kx#2 $ file_text+kx:$Header: //depot/test-mercurial-import/file_text+kx#2 $$Header: //depot/test-mercurial-import/file_text+kx#2 $Header$ file_text+l:$Header$ file_text+l:$Header$$Header$Header$ file_text+m:$Header$ file_text+m:$Header$$Header$Header$ file_text+s:$Header$ file_text+s:$Header$$Header$Header$ file_text+s2:$Header$ file_text+s2:$Header$$Header$Header$ file_text+w:$Header$ file_text+w:$Header$$Header$Header$ file_text+x:$Header$ file_text+x:$Header$$Header$Header$ file_ubinary:$Header$ file_ubinary:$Header$$Header$Header$ file_uxbinary:$Header$ file_uxbinary:$Header$$Header$Header$ file_xbinary:$Header$ file_xbinary:$Header$$Header$Header$ file_xltext:$Header$ file_xltext:$Header$$Header$Header$ file_xtempobj:$Header$ file_xtempobj:$Header$$Header$Header$ file_xtext:$Header$ file_xtext:$Header$$Header$Header$ convert $ hg convert -s p4 $DEPOTPATH dst initializing destination dst repository reading p4 views collecting p4 changelists 1 initial 2 keywords scanning source... sorting... converting... 1 initial 0 keywords $ hg -R dst log --template 'rev={rev} desc="{desc}" tags="{tags}" files="{files}"\n' rev=1 desc="keywords" tags="tip" files="crazy_symlink+k file_binary file_binary+k file_binary+kx file_binary+x file_ctext file_cxtext file_ktext file_kxtext file_ltext file_text file_text+c file_text+d file_text+f file_text+k file_text+ko file_text+kx file_text+l file_text+m file_text+s file_text+s2 file_text+w file_text+x file_ubinary file_uxbinary file_xbinary file_xltext file_xtext target_symlink target_symlink+k" rev=0 desc="initial" tags="" files="file_binary file_binary+k file_binary+kx file_binary+x file_ctext file_cxtext file_ktext file_kxtext file_ltext file_symlink file_symlink+k file_text file_text+c file_text+d file_text+f file_text+k file_text+ko file_text+kx file_text+l file_text+m file_text+s2 file_text+w file_text+x file_ubinary file_uxbinary file_xbinary file_xltext file_xtext target_symlink target_symlink+k" revision 0 $ hg -R dst update 0 30 files updated, 0 files merged, 0 files removed, 0 files unresolved $ head dst/file_* | cat -v ==> dst/file_binary <== this is binary ==> dst/file_binary+k <== this is binary+k ==> dst/file_binary+kx <== this is binary+kx ==> dst/file_binary+x <== this is binary+x ==> dst/file_ctext <== this is ctext ==> dst/file_cxtext <== this is cxtext ==> dst/file_ktext <== this is ktext ==> dst/file_kxtext <== this is kxtext ==> dst/file_ltext <== this is ltext ==> dst/file_symlink <== this is target symlink ==> dst/file_symlink+k <== this is target symlink+k ==> dst/file_text <== this is text ==> dst/file_text+c <== this is text+C ==> dst/file_text+d <== this is text+D ==> dst/file_text+f <== this is text+F ==> dst/file_text+k <== this is text+k ==> dst/file_text+ko <== this is text+ko ==> dst/file_text+kx <== this is text+kx ==> dst/file_text+l <== this is text+l ==> dst/file_text+m <== this is text+m ==> dst/file_text+s2 <== this is text+S2 ==> dst/file_text+w <== this is text+w ==> dst/file_text+x <== this is text+x ==> dst/file_ubinary <== this is ubinary ==> dst/file_uxbinary <== this is uxbinary ==> dst/file_xbinary <== this is xbinary ==> dst/file_xltext <== this is xltext ==> dst/file_xtext <== this is xtext revision 1 $ hg -R dst update 1 30 files updated, 0 files merged, 0 files removed, 0 files unresolved $ head dst/file_* | cat -v ==> dst/file_binary <== this is binary$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+k <== this is binary+k$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+kx <== this is binary+kx$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_binary+x <== this is binary+x$Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ctext <== this is ctext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_cxtext <== this is cxtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ktext <== this is ktext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_kxtext <== this is kxtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ltext <== this is ltext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_symlink <== this is target symlink $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_symlink+k <== this is target symlink+k $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text <== this is text $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+c <== this is text+C $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+d <== this is text+D $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+f <== this is text+F $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+k <== this is text+k $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+ko <== this is text+ko $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+kx <== this is text+kx $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+l <== this is text+l $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+m <== this is text+m $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+s <== this is text+S $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+s2 <== this is text+S2 $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+w <== this is text+w $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_text+x <== this is text+x $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_ubinary <== this is ubinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_uxbinary <== this is uxbinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xbinary <== this is xbinary $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xltext <== this is xltext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ ==> dst/file_xtext <== this is xtext $Id$ $Header$ $Date$ $DateTime$ $Change$ $File$ $Revision$ $Header$$Header$Header$ crazy_symlink $ readlink crazy_symlink+k target_$Header: //depot/test-mercurial-import/crazy_symlink+k#1 $ $ readlink dst/crazy_symlink+k target_$Header$ exit trap: stopping the p4 server