/* greater than operation */
int gtTime(TimeInternal *x, TimeInternal *y)
{
TimeInternal r;
subTime(&r, x, y);
return !isTimeInternalNegative(&r);
}
int
snprint_TimeInternal(char *s, int max_len, const TimeInternal * p)
{
int len = 0;
if (isTimeInternalNegative(p))
len += snprintf(&s[len], max_len - len, "-");
len += snprintf(&s[len], max_len - len, "%d.%09d",
abs(p->seconds), abs(p->nanoseconds));
return len;
}
/*Check if data has been received*/
int
netSelect(TimeInternal * timeout, NetPath * netPath, fd_set *readfds)
{
int ret, nfds;
struct timeval tv, *tv_ptr;
#if defined PTPD_SNMP
extern RunTimeOpts rtOpts;
struct timeval snmp_timer_wait = { 0, 0}; // initialise to avoid unused warnings when SNMP disabled
int snmpblock = 0;
#endif
if (timeout) {
if(isTimeInternalNegative(timeout)) {
ERROR("Negative timeout attempted for select()\n");
return -1;
}
tv.tv_sec = timeout->seconds;
tv.tv_usec = timeout->nanoseconds / 1000;
tv_ptr = &tv;
} else {
tv_ptr = NULL;
}
FD_ZERO(readfds);
nfds = 0;
#ifdef PTPD_PCAP
if (netPath->pcapEventSock >= 0) {
FD_SET(netPath->pcapEventSock, readfds);
if (netPath->pcapGeneralSock >= 0)
FD_SET(netPath->pcapGeneralSock, readfds);
nfds = netPath->pcapEventSock;
if (netPath->pcapEventSock < netPath->pcapGeneralSock)
nfds = netPath->pcapGeneralSock;
} else if (netPath->eventSock >= 0) {
#endif
FD_SET(netPath->eventSock, readfds);
if (netPath->generalSock >= 0)
FD_SET(netPath->generalSock, readfds);
nfds = netPath->eventSock;
if (netPath->eventSock < netPath->generalSock)
nfds = netPath->generalSock;
#ifdef PTPD_PCAP
}
#endif
nfds++;
#if defined PTPD_SNMP
if (rtOpts.snmp_enabled) {
snmpblock = 1;
if (tv_ptr) {
snmpblock = 0;
memcpy(&snmp_timer_wait, tv_ptr, sizeof(struct timeval));
}
snmp_select_info(&nfds, readfds, &snmp_timer_wait, &snmpblock);
if (snmpblock == 0)
tv_ptr = &snmp_timer_wait;
}
#endif
ret = select(nfds, readfds, 0, 0, tv_ptr);
if (ret < 0) {
if (errno == EAGAIN || errno == EINTR)
return 0;
}
#if defined PTPD_SNMP
if (rtOpts.snmp_enabled) {
/* Maybe we have received SNMP related data */
if (ret > 0) {
snmp_read(readfds);
} else if (ret == 0) {
snmp_timeout();
run_alarms();
}
netsnmp_check_outstanding_agent_requests();
}
#endif
return ret;
}
