int main(int argc, char **argv)
{
PtpPortDS *ptpPortDS;
PtpClockDS ptpClockDS;
Integer16 ret;
/* start netif */
if( !netStartup())
return -1;
/*Initialize run time options with command line arguments*/
if( !(ptpPortDS = ptpdStartup(argc, argv, &ret, &rtOpts, &ptpClockDS)) )
return ret;
ptpd_init_exports();//from Tomeks'
/* initialize data sets common to entire boundary clock*/
initDataClock(&rtOpts, &ptpClockDS);
/* show the options you are starting with*/
displayConfigINFO(&rtOpts);
/* do the protocol engine */
if(rtOpts.portNumber > 0)
multiProtocol(&rtOpts, ptpPortDS); //forever loop for any number of ports
else
ptpdShutdown();
return 1;
}
int wrc_ptp_init()
{
Integer16 ret;
netStartup();
ptpPortDS = ptpdStartup(0, NULL, &ret, &rtOpts, &ptpClockDS);
initDataClock(&rtOpts, &ptpClockDS);
//initialize sockets
if (!netInit(&ptpPortDS->netPath, &rtOpts, ptpPortDS)) {
PTPD_TRACE(TRACE_WRPC, NULL, "failed to initialize network\n");
return -1;
}
ptpPortDS->linkUP = FALSE;
ptp_enabled = 0;
return 0;
}
int
main(int argc, char **argv)
{
PtpClock *ptpClock;
Integer16 ret;
/* initialize run-time options to reasonable values */
rtOpts.syncInterval = DEFAULT_SYNC_INTERVAL;
memcpy(rtOpts.subdomainName, DEFAULT_PTP_DOMAIN_NAME, PTP_SUBDOMAIN_NAME_LENGTH);
memcpy(rtOpts.clockIdentifier, IDENTIFIER_DFLT, PTP_CODE_STRING_LENGTH);
rtOpts.clockVariance = DEFAULT_CLOCK_VARIANCE;
rtOpts.clockStratum = DEFAULT_CLOCK_STRATUM;
rtOpts.unicastAddress[0] = 0;
rtOpts.inboundLatency.nanoseconds = DEFAULT_INBOUND_LATENCY;
rtOpts.outboundLatency.nanoseconds = DEFAULT_OUTBOUND_LATENCY;
rtOpts.noResetClock = DEFAULT_NO_RESET_CLOCK;
rtOpts.s = DEFAULT_DELAY_S;
rtOpts.ap = DEFAULT_AP;
rtOpts.ai = DEFAULT_AI;
rtOpts.max_foreign_records = DEFAULT_MAX_FOREIGN_RECORDS;
rtOpts.currentUtcOffset = DEFAULT_UTC_OFFSET;
rtOpts.logFd = -1;
rtOpts.recordFP = NULL;
rtOpts.useSysLog = FALSE;
rtOpts.ttl = 1;
if (!(ptpClock = ptpdStartup(argc, argv, &ret, &rtOpts)))
return ret;
if (rtOpts.probe) {
probe(&rtOpts, ptpClock);
} else {
/* do the protocol engine */
protocol(&rtOpts, ptpClock);
}
ptpdShutdown();
NOTIFY("self shutdown, probably due to an error\n");
return 1;
}
int
main(int argc, char **argv)
{
PtpClock *ptpClock;
Integer16 ret;
TimingService *ts;
startupInProgress = TRUE;
/**
* 将所选择的时间服务器及其他服务器信息存储到@timingDomain
*/
memset(&timingDomain, 0, sizeof(timingDomain));
timingDomainSetup(&timingDomain);
timingDomain.electionLeft = 10;
/* Initialize run time options with command line arguments */
/**
* 初始化配置，存储在结构体@rtOpts中
*/
if (!(ptpClock = ptpdStartup(argc, argv, &ret, &rtOpts))) {
if (ret != 0 && !rtOpts.checkConfigOnly)
ERROR(USER_DESCRIPTION" startup failed\n");
return ret;
}
/**
* 设置同个时间域中选举时间服务器的最大延迟，防止抖动
*/
timingDomain.electionDelay = rtOpts.electionDelay;
/* configure PTP TimeService */
timingDomain.services[0] = &ptpClock->timingService;
ts = timingDomain.services[0];
strncpy(ts->id, "PTP0", TIMINGSERVICE_MAX_DESC);
ts->dataSet.priority1 = rtOpts.preferNTP;
ts->dataSet.type = TIMINGSERVICE_PTP;
ts->config = &rtOpts;
ts->controller = ptpClock;
ts->timeout = rtOpts.idleTimeout;
ts->updateInterval = 1;
ts->holdTime = rtOpts.ntpOptions.failoverTimeout;
timingDomain.serviceCount = 1;
if (rtOpts.ntpOptions.enableEngine) {
ntpSetup(&rtOpts, ptpClock);
} else {
timingDomain.serviceCount = 1;
timingDomain.services[1] = NULL;
}
timingDomain.init(&timingDomain);
/**
* 定义协议的各状态更新时间为1个时间单位，即一个US_TIMER_INTERVAL(62500us)
*/
timingDomain.updateInterval = 1;
startupInProgress = FALSE;
/* global variable for message(), please see comment on top of this file */
G_ptpClock = ptpClock;
/* do the protocol engine */
/**
* 进入基于状态机的协议实现，无限循环
*/
protocol(&rtOpts, ptpClock);
/* forever loop.. */
/* this also calls ptpd shutdown */
timingDomain.shutdown(&timingDomain);
NOTIFY("Self shutdown\n");
return 1;
}