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Wait for two seconds for the NQPTP service to appear.

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This commit is contained in:
Mike Brady
2022-02-28 17:58:15 +11:00
parent 0aea810735
commit e8fec7fa70
1 changed files with 16 additions and 6 deletions
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shairport.c
+16 -6
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@@ -2211,13 +2211,23 @@ int main(int argc, char **argv) {
#endif
#ifdef CONFIG_AIRPLAY_2
ptp_shm_interface_init();
ptp_send_control_message_string("T"); // incidentally create the named SHM and remove all previous history
usleep(1000000); // wait for it to get done (?)
if (ptp_shm_interface_open() == 0) {
debug(1,"shm interface opened successfully!");
ptp_send_control_message_string("T"); // get nqptp to create the named shm interface
int ptp_check_times = 0;
const int ptp_wait_interval_us = 5000;
// wait for up to two seconds for NQPTP to come online
do {
ptp_send_control_message_string("T"); // get nqptp to create the named shm interface
usleep(ptp_wait_interval_us);
ptp_check_times++;
} while ((ptp_shm_interface_open() != 0) && (ptp_check_times < (2000000 / ptp_wait_interval_us)));
if (ptp_shm_interface_open() != 0) {
die("Can't access NQPTP! Is it installed and running?");
} else {
warn("Unable to open the shm interface at startup!");
if (ptp_check_times == 1)
debug(1,"NQPTP is online.");
else
debug(1,"NQPTP is online after %u microseconds.",ptp_check_times * ptp_wait_interval_us);
}
#endif