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How do I create a nice-looking DMG for Mac OS X using command-line tools?
...mg
Mount the disk image, and store the device name (you might want to use sleep for a few seconds after this operation):
device=$(hdiutil attach -readwrite -noverify -noautoopen "pack.temp.dmg" | \
egrep '^/dev/' | sed 1q | awk '{print $1}')
Store the background picture (in PNG format) i...
Does Parallel.ForEach limit the number of active threads?
... {
monitor.Add(monitor.Count);
System.Threading.Thread.Sleep(1000);
monitor.TryTake(out int result);
monitorOut.Add(result);
});
Console.WriteLine("Max concurrency: " + monitorOut.OrderByDescending(x => x).First());
}
I haven't made any changes yet ...
How to catch an Exception from a thread
...read() {
@Override
public void run() {
System.out.println("Sleeping ...");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
System.out.println("Interrupted.");
}
System.out.println("Throwing exception ...");
...
Numpy - add row to array
...0 rows, one at a time:
import numpy as np
from time import perf_counter, sleep
def time_it():
# Compare performance of two methods for adding rows to numpy array
py_array = [[0, 1, 2], [0, 2, 0]]
py_row = [4, 5, 6]
numpy_array = np.array(py_array)
numpy_row = np.array([4,5,6])...
How do you print in a Go test using the “testing” package?
...lel()
for i := 0; i < 15; i++ {
t.Logf("%d", i)
time.Sleep(3 * time.Second)
}
}
func TestBar(t *testing.T) {
t.Parallel()
for i := 0; i < 15; i++ {
t.Logf("%d", i)
time.Sleep(2 * time.Second)
}
}
func TestBaz(t *testing.T) {
t.Parallel()
...
Do zombies exist … in .NET?
...("test.txt", FileMode.OpenOrCreate);
while (true)
{
Thread.Sleep(1);
}
GC.KeepAlive(file);
}
Despite making some pretty awful mistakes, the handle to "test.txt" is still closed as soon as Abort is called (as part of the finalizer for file which under the covers uses SafeFil...
How to Calculate Execution Time of a Code Snippet in C++
...lt;< a << std::endl;
}
{
NLTimerScoped timer( "sleep( 4 )" );
sleep( 4 );
}
return 0;
}
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Creating a daemon in Linux
...nize.c
* This example daemonizes a process, writes a few log messages,
* sleeps 20 seconds and terminates afterwards.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sy...
top -c command in linux to filter processes listed based on processname
...f [ -z "$__arg" ]; then top -u 65536 -n 1; else top -c -n 1 -p $__arg; fi; sleep 1; done;)
Modify the __keyword and it should works. (Ubuntu 2.6.38 tested)
2.14.2015 added:
The system workload part is missing with the code above.
For people who cares about the "load average" part:
__keyword=name...
How does facebook, gmail send the real time notification?
... perhaps like the following pseudocode:
while(!has_event_happened()) {
sleep(5);
}
echo json_encode(get_events());
The has_event_happened function would just check if anything had happened in an events table or something, and then the get_events function would return a list of the new rows i...