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技术人员如何创业《四》- 打造超强执行力团队 - 资讯 - 清泛网 - 专注C/C++...
...导更加容易这样。与其去管理团队还不如多花时间写几个函数来的实际。授权就是教人做事的方法，充分信任他能做好，并且知道和鼓励他不要怕错。授权后并不是不管了，还需要去跟踪进度保证他们执行到位。
建立积极正面...
Web-scraping JavaScript page with Python
...t webdriver
import time
driver = webdriver.Firefox()
driver.get(url)
time.sleep(5)
htmlSource = driver.page_source
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Code for decoding/encoding a modified base64 URL
...n for Xamarin without having to pull in a library.
– Sleeping_Giant
Aug 2 '18 at 16:43
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How to use shared memory with Linux in C
...te: %s\n", shmem);
} else {
printf("Parent read: %s\n", shmem);
sleep(1);
printf("After 1s, parent read: %s\n", shmem);
}
}
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What is the difference between a thread and a fiber?
...by the kernel, although a kernel thread can voluntarily release the CPU by sleeping if it wants. A kernel thread has the advantage that it can use blocking I/O and let the kernel worry about scheduling. It's main disadvantage is that thread switching is relatively slow since it requires trapping i...
How to open, read, and write from serial port in C?
...cking
write (fd, "hello!\n", 7); // send 7 character greeting
usleep ((7 + 25) * 100); // sleep enough to transmit the 7 plus
// receive 25: approx 100 uS per char transmit
char buf [100];
int n = read (fd, buf, sizeof buf); // read up t...
async/await - when to return a Task vs void?
...id AsyncMethod2(int num)
{
await Task.Factory.StartNew(() => Thread.Sleep(num));
}
Yes, use async and await here, they make sure your method still works correctly if an exception is thrown.
for more information see: http://msdn.microsoft.com/en-us/magazine/jj991977.aspx
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C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...障和线程本地存储优化。如果仔细观察，可以发现 Acquire 函数中使用顺序一致性内部屏障 pointer->target_ = ...，x86 平台上会翻译为 mfence 指令，与 lock add 指令相比也不遑多让。在读多写少的前提下，可以将读写两边的屏障替换为非...
Add subdomain to localhost URL
...er (to work around the permissions).
– Lindsay-Needs-Sleep
Apr 4 '19 at 6:36
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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...m -f ${LOCKFILE}; exit" INT TERM EXIT
echo $$ > ${LOCKFILE}
# do stuff
sleep 1000
rm -f ${LOCKFILE}
The trick here is the kill -0 which doesn't deliver any signal but just checks if a process with the given PID exists. Also the call to trap will ensure that the lockfile is removed even when ...