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OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网移动版 - 专注C/C++及内核技术
...CE_BTF [default: none] BTF file
EXAMPLES:
bpftrace -l '*sleep*'
list probes containing "sleep"
bpftrace -e 'kprobe:do_nanosleep { printf("PID %d sleeping...\n", pid); }'
trace processes calling sleep
bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[comm] = count(); }...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...CE_BTF [default: none] BTF file
EXAMPLES:
bpftrace -l '*sleep*'
list probes containing "sleep"
bpftrace -e 'kprobe:do_nanosleep { printf("PID %d sleeping...\n", pid); }'
trace processes calling sleep
bpftrace -e 'tracepoint:raw_syscalls:sys_enter { @[comm] = count(); }...
Implement C# Generic Timeout
...hod, 4000);
}
static void FiveSecondMethod()
{
Thread.Sleep(5000);
}
The static method doing the work:
static void CallWithTimeout(Action action, int timeoutMilliseconds)
{
Thread threadToKill = null;
Action wrappedAction = () =>
{
...
How to create a loop in bash that is waiting for a webserver to respond?
...v/null --silent --head --fail http://myhost:myport); do
printf '.'
sleep 5
done
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Handling InterruptedException in Java
... as Callable, or follow the second approach above.
Calling Thread.sleep: You're attempting to read a file and the spec says you should try 10 times with 1 second in between. You call Thread.sleep(1000). So, you need to deal with InterruptedException. For a method such as tryToReadFile it ma...
What is the difference between packaged_task and async
...gave shows the differences if you use a rather long function, such as
//! sleeps for one second and returns 1
auto sleep = [](){
std::this_thread::sleep_for(std::chrono::seconds(1));
return 1;
};
Packaged task
A packaged_task won't start on it's own, you have to invoke it:
std::packaged...
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...
MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...设置，线程语言默认采用用户设置语言。设置线程语言的函数是SetThreadLocale。
设置线程语言为“中文”的代码如下：
SetThreadLocale(MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_DEFAULT));
设置线程语言为“英语（美国）”...
windbg 备忘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...c 切换栈帧
kv (数量) 栈帧信息
dt -r 递归 ntdll!*
u /uf (函数)
ub (往前)
常用前缀：Cc（Cache Manager），Cm（Configuration Manager），Ex（Excutive support routines），FsRtl（文件系统驱动程序运行库），Ps（Process support），Rtl（运行库），Zw...
重构理论及实践——用工厂模式重构c++后台代码 - C/C++ - 清泛网 - 专注C/C...
...设计的耦合、代码的耦合、头文件的耦合、变量的耦合、函数的耦合、数据的耦合、编译的耦合、业务逻辑的耦合，这也是重构要解决的问题之一。楼主来鹅厂前是在狼厂和狼司开发广告搜索引擎和电信云平台的，其中在狼厂接...