On Tue, Jul 18, 2023 at 04:34:19PM -0700, Thangalin wrote: > adjtimex(&t); > printf( "%d\n", t.status & STA_PPSSIGNAL); > } > > That works for ntpd, not for chronyd.
This works only when ntpd is configured to give up the control of the clock to the kernel (kernel PPS discipline). > Mirsoslav recommended looking at the chrony sources (e.g., client.c, > candm.h). That was helpful. It looks like we'd need to do the following: > > * Declare a structure of type CMD_Reply. > * Open the PPS device (e.g., /dev/pps1). > * Read the device data into the CMD_Reply structure. You would need to open the chronyd socket and send a request to it before you get a message containing CMD_Reply. There is a new library which makes this much easier: https://gitlab.com/chrony/libchrony See the example. > Ideally, some direction to look at that'd work for both ntpd and chronyd > would be much appreciated. If that's simply not possible, then tips on > creating a simpler solution would also be helpful. There is no solution that would work for both chronyd and ntpd. They use different monitoring protocols. The ntp distribution includes libntpq. -- Miroslav Lichvar -- To unsubscribe email chrony-users-requ...@chrony.tuxfamily.org with "unsubscribe" in the subject. For help email chrony-users-requ...@chrony.tuxfamily.org with "help" in the subject. Trouble? Email listmas...@chrony.tuxfamily.org.
