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Timer function to provide time in nano seconds using C++
...repeatedly in a loop is correct.
For Linux (and BSD) you want to use clock_gettime().
#include <sys/time.h>
int main()
{
timespec ts;
// clock_gettime(CLOCK_MONOTONIC, &ts); // Works on FreeBSD
clock_gettime(CLOCK_REALTIME, &ts); // Works on Linux
}
For windows you want t...
What's wrong with foreign keys?
... should probably go that route if any of the reasons in the second section apply.
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How can I detect if the user is on localhost in PHP?
...
You can also use $_SERVER['REMOTE_ADDR'] for which IP address of the client requesting is given by the web server.
$whitelist = array(
'127.0.0.1',
'::1'
);
if(!in_array($_SERVER['REMOTE_ADDR'], $whitelist)){
// not valid
}
...
Java “user.dir” property - what exactly does it mean?
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Typically this is the directory where your app (java) was started (working dir). "Typically" because it can be changed, eg when you run an app with Runtime.exec(String[] cmdarray, String[] envp, File dir)
...
What Process is using all of my disk IO
...[jdb2/nvme0n1p1] in iotop, but I got lucky with enabling /proc/sys/vm/block_dump and comparing the output to a healthy/stable system lxadm.com/Simple_filesystem_read/write_tracing_with_/proc/sys/… It helped find a docker container that was continuously spawning kubectl requests, exhausting an EBS ...
Difference between jQTouch and jQuery mobile
...ramework
jQTouch is focused on small screen device, from their blog :
Apps developed with jQTouch will certainly run fine on iPads and other tablet devices, but we aren’t going to automagically convert to a more tablet-friendly UI that takes advantage of the additional real estate. If you are...
split string only on first instance of specified character
In my code I split a string based on _ and grab the second item in the array.
17 Answers
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What does if __name__ == “__main__”: do?
Given the following code, what does the if __name__ == "__main__": do?
33 Answers
33...
C++0x has no semaphores? How to synchronize threads?
...ex and a condition variable:
#include <mutex>
#include <condition_variable>
class semaphore
{
private:
std::mutex mutex_;
std::condition_variable condition_;
unsigned long count_ = 0; // Initialized as locked.
public:
void notify() {
std::lock_guard<decltype...
How can I limit a “Run Script” build phase to my release configuration?
... I have 'Debug', 'Release' (for Instruments), 'Ad Hoc' and 'App Store' configs (with different code signing), so I changed it for if [ "${CONFIGURATION}" != "Debug" ]; then....
– Nicolas Miari
Mar 14 '14 at 1:32
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