Relearning/Modern C

Hi /prog/,
I want to re-learn C the right way.

When I was in college I took a bunch of courses (data structures, ADTs, algorithms) but I don't think I gained a deep knowledge of C.

What are some good books or resources on modern C usage (K&R is pretty dated)?

I'd like to do some HPC later in my life and I need to start somewhere.

>>37

You cannot discern a php programmer from a troll.

For example:

I want to create a daemon/Linux service. Here is an example of how to run a process that has "throttle control"

// You must set these
//
// max_execution_time = 0
// max_input_time = 0

function doProcess() {
    echo "Start"."\n";
    usleep(10000);
    echo "Stop"."\n";
    return false;
}

function manageProcess() {
    // Setup data
    $runsPerMinute = 200;
    $maxMinuteAverage = 5;
    $waitIfNotWorking = 120; // seconds

    // Conversion
    $microsPerSecond = 1000000;

    // Statistical Info
    $currentMinute = 0;
    $minute = -1;
    $countPerMinute = array();
    $sumPerMinute = array();

    // Totals
    $totalProcessTime = 0;
    $totalCounts = 0;

    while (true) {
        $timestart = microtime();
        $performedWork = doProcess();
        $timeend = microtime();

        if (!$performedWork) {
            // Statistical Info
            $currentMinute = 0;
            $minute = -1;
            $countPerMinute = array();
            $sumPerMinute = array();

            sleep($waitIfNotWorking);
        } else {

            $ts = split(" ",$timestart);
            $te = split(" ",$timeend);

            $te[0] = ($te[0] * $microsPerSecond) - ($ts[0] * $microsPerSecond);
            $te[1] = ($te[1] - $ts[1]) * $microsPerSecond;

            $processTime = $te[0] + $te[1];

            if (date("i")<>$minute) { // We are NOT in the same minute
                // Reset the new minute
                $minute = date("i");
                $currentMinute = ($currentMinute+1) % $maxMinuteAverage;

                // Remove Statistical Information from the minute we are expiring.
                if (isset($countPerMinute[$currentMinute])) {
                    $totalProcessTime = $totalProcessTime - $sumPerMinute[$currentMinute];
                    $totalCounts = $totalCounts - $countPerMinute[$currentMinute];
                }

                $countPerMinute[$currentMinute] = 0;
                $sumPerMinute[$currentMinute] = 0;
            }

            $countPerMinute[$currentMinute] = $countPerMinute[$currentMinute] + 1;
            $sumPerMinute[$currentMinute] = $sumPerMinute[$currentMinute] + $processTime;

            $totalCounts = $totalCounts + 1;
            $totalProcessTime = $totalProcessTime + $processTime;

            $averageRuntime = round($totalProcessTime / $totalCounts);

            $waitTime = (($microsPerSecond*60) / $runsPerMinute) - $averageRuntime;

            usleep($waitTime);
        }
    }

}

manageProcess();

This shit will happily eat away all your memory. Is he serious or not?