UInteger8
bmc(ForeignMasterRecord *foreignMaster,
RunTimeOpts *rtOpts, PtpClock *ptpClock)
{
Integer16 i,best;
DBGV("number_foreign_records : %d \n", ptpClock->number_foreign_records);
if (!ptpClock->number_foreign_records)
if (ptpClock->portState == PTP_MASTER) {
m1(rtOpts,ptpClock);
return ptpClock->portState;
}
for (i=1,best = 0; i<ptpClock->number_foreign_records;i++)
if ((bmcDataSetComparison(&foreignMaster[i].header,
&foreignMaster[i].announce,
&foreignMaster[best].header,
&foreignMaster[best].announce,
ptpClock)) < 0)
best = i;
DBGV("Best record : %d \n",best);
ptpClock->foreign_record_best = best;
return (bmcStateDecision(&foreignMaster[best].header,
&foreignMaster[best].announce,
rtOpts,ptpClock));
}
UInteger8 bmc(ForeignMasterRecord *foreign,
RunTimeOpts *rtOpts,
PtpClock *ptpClock
)
{
Integer16 i, best;
/* Check if any foreign masters */
if(!ptpClock->number_foreign_records)
{
DBGV("bmc: number_foreign_records is zero, state: %u\n",
ptpClock->port_state
);
/* No foreign masters, run m1 if we are currently master */
if(ptpClock->port_state == PTP_MASTER)
{
DBGV("bmc: calling m1\n");
m1(ptpClock);
}
return ptpClock->port_state; /* no change */
}
DBGV("bmc: number_foreign_records is non zero, state: %u\n",
ptpClock->port_state
);
/* There is at least one foreign master. Scan through foreign master database and compare
* to look for best master to use
*/
for(i = 1, best = 0; i < ptpClock->number_foreign_records; ++i)
{
/* Check current loop indx record versus current "best" record */
if(bmcDataSetComparison(&foreign[i].header,
&foreign[i].sync,
&foreign[best].header,
&foreign[best].sync,
ptpClock
) > 0)
{
/* Current loop index is better than previous "best", set new "best" */
best = i;
}
DBGV("bmc: comparison loop i=%d, best=%d\n",i,best);
}
/* Best record found, store index to best foreign master */
DBGV("bmc: best record %d\n", best);
ptpClock->foreign_record_best = best;
/* Now that best is found, determine recommended state */
return bmcStateDecision(&foreign[best].header,
&foreign[best].sync,
rtOpts,
ptpClock
);
}
UInteger8 bmc(ForeignMasterRecord *foreign, RunTimeOpts *rtOpts, PtpClock *ptpClock)
{
Integer16 i, best;
if(!ptpClock->number_foreign_records)
{
if(ptpClock->port_state == PTP_MASTER)
m1(ptpClock);
return ptpClock->port_state; /* no change */
}
for(i = 1, best = 0; i < ptpClock->number_foreign_records; ++i)
{
if(bmcDataSetComparison(&foreign[i].header, &foreign[i].sync,
&foreign[best].header, &foreign[best].sync, ptpClock) > 0)
best = i;
}
DBGV("bmc: best record %d\n", best);
ptpClock->foreign_record_best = best;
return bmcStateDecision(&foreign[best].header, &foreign[best].sync, rtOpts, ptpClock);
}
