[PATCH] examples/ptpclient: add signal handler for cleanup

[Rahul Bhansali]

Ping.

> -----Original Message-----
> From: Rahul Bhansali
> Sent: Wednesday, November 2, 2022 10:21 PM
> To: dev at dpdk.org; Kirill Rybalchenko <kirill.rybalchenko at intel.com>
> Subject: RE: [PATCH] examples/ptpclient: add signal handler for cleanup
> 
> Ping.
> 
> > -----Original Message-----
> > From: Rahul Bhansali <rbhansali at marvell.com>
> > Sent: Wednesday, August 31, 2022 12:19 PM
> > To: dev at dpdk.org; Kirill Rybalchenko <kirill.rybalchenko at intel.com>
> > Cc: Rahul Bhansali <rbhansali at marvell.com>
> > Subject: [PATCH] examples/ptpclient: add signal handler for cleanup
> >
> > This adds the signal handler for SIGINT, SIGTERM.
> > Also, this will come out from infinite loop and do cleanup once it
> > receives any of the registered signal.
> >
> > Signed-off-by: Rahul Bhansali <rbhansali at marvell.com>
> > ---
> >  examples/ptpclient/ptpclient.c | 32 ++++++++++++++++++++++++++++++--
> >  1 file changed, 30 insertions(+), 2 deletions(-)
> >
> > diff --git a/examples/ptpclient/ptpclient.c
> > b/examples/ptpclient/ptpclient.c index 1f1c9c9c52..8b69716be1 100644
> > --- a/examples/ptpclient/ptpclient.c
> > +++ b/examples/ptpclient/ptpclient.c
> > @@ -19,6 +19,9 @@
> >  #include <limits.h>
> >  #include <sys/time.h>
> >  #include <getopt.h>
> > +#include <signal.h>
> > +
> > +static volatile bool force_quit;
> >
> >  #define RX_RING_SIZE 1024
> >  #define TX_RING_SIZE 1024
> > @@ -609,7 +612,7 @@ parse_ptp_frames(uint16_t portid, struct rte_mbuf
> > *m) {
> >   * The lcore main. This is the main thread that does the work, reading from an
> >   * input port and writing to an output port.
> >   */
> > -static __rte_noreturn void
> > +static void
> >  lcore_main(void)
> >  {
> >  	uint16_t portid;
> > @@ -621,7 +624,7 @@ lcore_main(void)
> >
> >  	/* Run until the application is quit or killed. */
> >
> > -	while (1) {
> > +	while (!force_quit) {
> >  		/* Read packet from RX queues. 8< */
> >  		for (portid = 0; portid < ptp_enabled_port_nb; portid++) {
> >
> > @@ -734,6 +737,13 @@ ptp_parse_args(int argc, char **argv)
> >  	return 0;
> >  }
> >
> > +static void
> > +signal_handler(int signum)
> > +{
> > +	if (signum == SIGINT || signum == SIGTERM)
> > +		force_quit = true;
> > +}
> > +
> >  /*
> >   * The main function, which does initialization and calls the per-lcore
> >   * functions.
> > @@ -758,6 +768,10 @@ main(int argc, char *argv[])
> >  	argc -= ret;
> >  	argv += ret;
> >
> > +	force_quit = false;
> > +	signal(SIGINT, signal_handler);
> > +	signal(SIGTERM, signal_handler);
> > +
> >  	ret = ptp_parse_args(argc, argv);
> >  	if (ret < 0)
> >  		rte_exit(EXIT_FAILURE, "Error with PTP initialization\n"); @@ -
> > 802,6 +816,20 @@ main(int argc, char *argv[])
> >  	/* Call lcore_main on the main core only. */
> >  	lcore_main();
> >
> > +	RTE_ETH_FOREACH_DEV(portid) {
> > +		if ((ptp_enabled_port_mask & (1 << portid)) == 0)
> > +			continue;
> > +
> > +		/* Disable timesync timestamping for the Ethernet device */
> > +		rte_eth_timesync_disable(portid);
> > +
> > +		ret = rte_eth_dev_stop(portid);
> > +		if (ret != 0)
> > +			printf("rte_eth_dev_stop: err=%d, port=%d\n", ret,
> > portid);
> > +
> > +		rte_eth_dev_close(portid);
> > +	}
> > +
> >  	/* clean up the EAL */
> >  	rte_eal_cleanup();
> >
> > --
> > 2.25.1