UDP clint program

Question

hi this the fisrt question for me i hope i have the answer for it and all thanks for all who can help i have a UDP client program to check multiple hosts time and to calculate the average time of these hosts i dont know how to use the difftime function and the library time.h to solve the program

labeebah2002 · Answer

thanks for your help

bilnaad · Answer

I forgot something else. Read this comments on time.c /*** *time_t time(timeptr) - Get current system time and convert to time_t value. * *Purpose: * Gets the current date and time and stores it in internal (time_t) * format. The time is returned and stored via the pointer passed in * timeptr. If timeptr == NULL the time is only returned not stored in * *timeptr. The internal (time_t) format is the number of seconds since * 00:00:00 Jan 1 1970 (UTC). * * Note: We cannot use GetSystemTime since its return is ambiguous. In * Windows NT in return UTC. In Win32S probably also Win32C it * returns local time. * *Entry: * time_t *timeptr - pointer to long to store time in. * *Exit: * returns the current time. * *Exceptions: * *******************************************************************************/

bilnaad · Answer

LOL got it right this time :) // cppConsole.cpp : Defines the entry point for the console application. // #include stdafx.h #include int _tmain(int argc _TCHAR* argv[]) { time_t t1; localtime( &t1 ); time_t t2 = t1 - 300; char * cT1 = ctime( &t1 ); char * cT2 = ctime( &t2 ); std::cout > wait; return 0; }

bilnaad · Answer

The time.h only includes definitions and function prototypes. I took a look at time.c wich contains some implementation on how to use the time structure. And as far is I understand it. You use the structure time_t and you can find functions gmtime and localtime and more in time.h. here's a little sample. It doesn't report any error or warning. ut it doesn't output anything either to the Console. I'm not so familiar with C++ so it's done for me I guess :) good luck with it. // This is the main project file for VC++ application project // generated using an Application Wizard. #include stdafx.h #include #using using namespace System; int _tmain() { time_t t1; //new time_t structure t1 localtime( &t1 ); //fill t1 with local time data time_t t2; //new time_t structure t2 gmtime( &t2 ); //fill t2 with gm time data double diff = difftime( t1 t2 ); //double difference between the 2 structures Console::WriteLine( Difference in time... ); Console::WriteLine( diff.ToString() ); return 0; }

labeebah2002 · Answer

the header time.h work in a c program and have many fuctions but i dont know how to use them to get the average of time got from multiple hosts

shimtanny · Answer

Hi time.h is a c++ header file. Isn't the program a .NET application? Cheers Simon

sasah · Answer

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