From: Mike Brady <4265913+mikebrady@users.noreply.github.com> Date: Wed, 23 Jun 2021 18:58:20 +0000 (+0100) Subject: Update README.md X-Git-Tag: 1.2~113^2~3^2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=efc82408c41438640ef651a2f2ea37b8d33bf3da;p=thirdparty%2Fnqptp.git Update README.md --- diff --git a/README.md b/README.md index 2c2e2bb..8acbfb0 100644 --- a/README.md +++ b/README.md @@ -30,7 +30,7 @@ $ make The `make install` installs a `systemd` startup script. You should enable it and start it in the normal way. Note that `nqptp` must run in `root` mode to be able to access ports 319 and 320. # Notes -If you wish to use the shared mutex to ensure records are not altered while you are accessing them, you should open your side of the shared memory interface with read-write permission. Be aware that while your program has the mutex lock, it is in a "critical region" wherer it can halt `nqptp`, so keep any activity while you have the lock very short and very simple, e.g. copying it to local memory. +If you wish to use the shared mutex to ensure records are not altered while you are accessing them, you should open your side of the shared memory interface with read-write permission. Be aware that while your program has the mutex lock, it is in a "critical region" where it can halt `nqptp`, so keep any activity while you have the lock very short and very simple, e.g. copying it to local memory. Clock records not updated for a period are deleted.