Loop Every 10 Second

Loop every 10 second

My try. (Almost) perfectly POSIX. Works on both POSIX and MSVC/Win32 also.

#include <stdio.h>
#include <time.h>

const int NUM_SECONDS = 10;

int main()
{
    int count = 1;

    double time_counter = 0;

    clock_t this_time = clock();
    clock_t last_time = this_time;

    printf("Gran = %ld\n", NUM_SECONDS * CLOCKS_PER_SEC);

    while(true)
    {
        this_time = clock();

        time_counter += (double)(this_time - last_time);

        last_time = this_time;

        if(time_counter > (double)(NUM_SECONDS * CLOCKS_PER_SEC))
        {
            time_counter -= (double)(NUM_SECONDS * CLOCKS_PER_SEC);
            printf("%d\n", count);
            count++;
        }

        printf("DebugTime = %f\n", time_counter);
    }

    return 0;
}

This way you can also have the control on each iteration, unlike the sleep()-based approach.

This solution (or the same based on high-precision timer) also ensures that there is no error accumulation in timing.

EDIT: OSX stuff, if all else fails

#include <unistd.h>
#include <stdio.h>

const int NUM_SECONDS = 10;

int main()
{
    int i;
    int count = 1;
    for(;;)
    {
        // delay for 10 seconds
        for(i = 0 ; i < NUM_SECONDS ; i++) { usleep(1000 * 1000); }
        // print
        printf("%d\n", count++);
    }
    return 0;
}

How to make my function loop every x second in javascript

Problem with the current implementation is that it uses asynchronous requests which may take more than 10 seconds(can't predict when the request is served).

The method setInterval will execute the myFunction irrespective of the previous requests were completed or not.

As a result next request will queue up to be executed. So you get it is sometimes executed after 5 sec and sometimes after 8 and so on.

You should use setTimeout() to recursively invoke the method instead of using setInterval

function myFunction() {
    $.getJSON("URL", function (data) {
        $.getJSON("URL", function (data2) {
            //Your existing code

            //Schedule it be executed after x * 1000 milliseconds
            setTimeout(myFunction, 10000);
        });
    });
}
myFunction();

How to run timer every x seconds within a loop without stalling the loop?

Use datetime.timedelta to check if enough time passed:

import datetime

i = 0
start = datetime.datetime.now()
last = start

while True:
    my_function()
    i += 1
    now = datetime.datetime.now()
    if now - last > datetime.timedelta(seconds=10):
        last = now
        print('Elapsed: ' + str(now-start) + ' | Iteration #' + str(i))

PHP: Execute a function inside a while loop every 10 seconds

I'm using now a setInterval() function to check:

let interval = setInterval( function () {
    //If max time of 5 minutes exceeded (5 * 60000) I leave the interval
    if ( new Date().getTime() - startTime > 300000 ) {
        clearInterval( interval );
    }
    //Here I'm doing my AJAX request to check the payment status
}, 5000 ); //<- Execute every 5 seconds

This works great for me and is simple

Loop every five seconds in Javascript

var time = 1;

var interval = setInterval(function() { 
   if (time <= 3) { 
      alert(time);
      time++;
   }
   else { 
      clearInterval(interval);
   }
}, 5000);

you can simply create an interval and kill it after the 3rd time

How do I end a loop within a loop after 10 seconds?

Another way of running a while loop for 10 seconds is using datetime module.

import datetime

start_time = datetime.datetime.now()
#end time is 10 sec after the current time
end_time = start_time + datetime.timedelta(seconds=10)

#Run the loop till current time exceeds end time
while end_time > datetime.datetime.now():
    #do stuff

An advantage here is you can also define time intervals in minutes and hours using the datetime.timedelta function

How to run program in R every 10 seconds without Scheduler?

Use Sys.sleep()

i = 1
while(TRUE){
    if (i %% 11 == 0){
        #write.table()  #But maybe you would want to write results
                        #to a table after certain number of iteration

        break           #A condition to break out of the loop
    }

    print(i)            #Run your code
    Sys.sleep(time = 1) #Time in seconds
    i = i + 1
}

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