edmiRemoteGetDate

 
Reads the current time and date from the system clock on the server that runs a remote _EDMdatabase^{_}.
Related function: edmiUnpackDate.
Header:
#include "sdai.h"
Prototype:
EdmiError edmiRemoteGetDate(SdaiServerContext serverContextId,
                             EdmiPackedDate    *packedDate,
                             EdmiDate          *date,
                             EdmiStringDate    *stringDate,
                             SdaiInteger       stringFormat,
                             SdaiInvocationId  *edmiInvocationId);
 
Arguments:

Returns:
A completion code of datatype EdmiError is the returned function value. The completion code has the following values:
Completion code = 0 : Operation successfully performed.
Completion code != 0: Error in operation. Completion code is an _EDMinterface^_ error code. Use edmiGetErrorText to get the error text corresponding to the error code.
Example:
#define S_MAXDIFF 30
/* Check if the clocks on two servers are
unsyncronized beyond a threshold value */ 
EdmiError rstat;
SdaiServerContext tellusContext, saturnContext;
EdmiPackedDate tellusPackedDate, saturnPackedDate, dateDiff;
EdmiDate tellusDate, saturnDate;
EdmiStringDate tellusStringDate, saturnStringDate;
SdaiUnsignedInt tellusSeconds, saturnSeconds;
 
/* Create a Tellus server context */
rstat = edmiDefineServerContext("TellusContext",
"superuser", NULL, "xfx56kl9",
"TCP", "9090", "Tellus",
NULL, NULL, NULL, NULL, NULL, &tellusContext); 
 
/* Create a Saturn server context */ 
rstat = edmiDefineServerContext("SaturnContext",
"superuser", NULL, "xgg45k22",
"TCP", "9095", "Saturn",
NULL, NULL, NULL, NULL, NULL, &saturnContext); 
 
/* Read the clock on server Tellus */
rstat = edmiRemoteGetDate(tellusContext, &tellusPackedDate,
&tellusDate, &tellusStringDate, 0, NULL); 
 
/* Read the clock on server Saturn */
rstat = edmiRemoteGetDate(saturnContext, &saturnPackedDate,
&saturnDate, &saturnStringDate, 0, NULL); 
 
printf("\nMaster time is (Tellus):");
printf("\n Year ..............: %d", tellusDate.year);
printf("\n Month .............: %d", tellusDate.month);
printf("\n Day .............. : %d", tellusDate.day);
printf("\n Hour ..............: %d", tellusDate.hour);
printf("\n Minute ............: %d", tellusDate.minute);
printf("\n Second ............: %d", tellusDate.second);
printf("\n WeekDay ...........: %d", tellusDate.weekday);
printf("\n Day of Year .......: %d", tellusDate.dayOfYear);
printf("\n daylightSavingTime : %d", tellusDate.daylightSavingTime);
 
if (tellusDate.dayOfYear != saturnDate.dayOfYear) {
_sleep(S_MAXDIFF*1000); 
}
 
tellusSeconds = 3600 * tellusDate.hour;
tellusSeconds += 60 * tellusDate.minute;
tellusSeconds += tellusDate.second;
 
saturnSeconds = 3600 * saturnDate.hour;
saturnSeconds += 60 * saturnDate.minute;
saturnSeconds += saturnDate.second;
 
dateDiff = saturnSeconds - tellusSeconds;
if (abs(dateDiff) > S_MAXDIFF) {
printf("\n\nWARNING!!! Unsyncronized server clocks."); 
printf("\nSaturn is %d seconds %s Tellus", abs(dateDiff), 
(dateDiff > 0) ? "ahead of" : "behind"); 
} else {
printf("\nServer clocks are syncronized."); 
printf("\n – Saturn drift is %d seconds", dateDiff);  
}
. . .