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Python: Making a beep noise
...more pythonic manner :
import os
beep = lambda x: os.system("echo -n '\a';sleep 0.2;" * x)
beep(3)
Notes :
the sleep value (here 0.2), depends on the length (seconds) of your default beep sound
I choosed to use os.system rather then subprocess.Popen for simplicity (it could be bad)
the '-n' for...
VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...半！
仔细的朋友可能也发现了，Larry Bank调用armtest.asm中函数的文件MAIN.C在VS2005编译时调用的是C编译器，但是现在很多项目工程会以C++代码编写（*.cpp），在VS2005中会用C++编译器Compile。
如果不注意这点的话，就会出现下面的结...
RuntimeError on windows trying python multiprocessing
...cess
import time
start = time.perf_counter()
def do_something(time_for_sleep):
print(f'Sleeping {time_for_sleep} second...')
time.sleep(time_for_sleep)
print('Done Sleeping...')
p1 = Process(target=do_something, args=[1])
p2 = Process(target=do_something, args=[2])
if
__name__...
手握利器，直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...
...系统检测到引发崩溃的致命错误时，Windows自己执行崩溃函数“KeBugCheckEx”。该函数接受一个停止代码(STOP Code，也称为错误检查码“Bug Check Code”），以及四个根据停止代码来解释的参数(下文中会有图例)。在调用KeBugCheckEx之后，...
Supabase 拓展：App 接入 Supabase 后端服务（Auth + PostgreSQL + Storage...
...upabasePgSQL
PostgreSQL 数据库：增删改查、Upsert、RPC存储函数调用
SupabaseStorage
云存储：上传、下载、签名URL、删除、列目录、移动、复制
SupabaseFunction
Edge Function：调用 Deno 云函数
...
How to send SMS in Java
...+CMGS="+quotes + phoneNumber +quotes+ "\r\n");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// send("AT+CMGS=\""+ phoneNumber +"\"\r\n");
send(message + '\032');
S...
Really killing a process in Windows
...es could survive a kill -9 if they are in what's known as "Uninterruptible sleep" (shown by top and ps as state D) at which point the processes sleep so well that they can't process incoming signals (which is what kill does - sending signals).
Normally, Uninterruptible sleep should not last long, b...
What does flushing the buffer mean?
...de like:
for (int i = 0; i < 5; i++) {
std::cout << ".";
sleep(1); // or something similar
}
std::cout << "\n";
will output ..... at once (for exact sleep implementation, see this question). In such cases, you will want an additional << std::flush to ensure that the ...
How do I write a bash script to restart a process if it dies?
...Server 'myserver' crashed with exit code $?. Respawning.." >&2
sleep 1
done
The above piece of bash code runs myserver in an until loop. The first line starts myserver and waits for it to end. When it ends, until checks its exit status. If the exit status is 0, it means it ended gra...
How and when to use ‘async’ and ‘await’
...wait must be marked async.
// This line is reached after the 5 seconds sleep from DoSomethingAsync() method. Shouldn't it be reached immediately?
No, because async methods are not run on another thread by default.
// Is this executed on a background thread?
No.
You may find my async/...