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What's the difference between deadlock and livelock?
...When each learns they cannot continue they release their held resource and sleep for 30 seconds, then they retrieve their original resource followed by trying to the resource the other process held, then left, then reaquired. Since both processes are trying to cope (just badly), this is a livelock.
...
What is the use of join() in Python threading?
...on after join()-blocked parent-thread could
continue
'*' main-thread 'sleeping' in join-method, waiting for child-thread to finish
',' daemonized thread - 'ignores' lifetime of other threads;
terminates when main-programs exits; is normally meant for
join-independent tasks
So the rea...
Is there a replacement for unistd.h for Windows (Visual C)?
... * argument, this implementation always returns an indication as if
* the sleeping period ran to completion.
*/
_BEGIN_C_DECLS
__cdecl __MINGW_NOTHROW
int __mingw_sleep( unsigned long, unsigned long );
/* The nanosleep() function provides the most general purpose API for
* process/thread suspen...
BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...解为，read/write方法都是异步的，完成后会主动调用回调函数。 在JDK1.7中，这部分内容被称作NIO.2，主要在Java.nio.channels包下增加了下面四个异步通道：
AsynchronousSocketChannel
AsynchronousServerSocketChannel
AsynchronousFileChannel
Asynchronous...
MFC CString::Format()函数详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC CString::Format()函数详解我在编写程序时经常会使用CString::Format()来格式化字符串！但往往只是使用了Format很少一部分功能，比如整型转换成字符串！不过今天我想...我在编写程序时经常会使用CString::Format()来格式化字符串！但...
Python threading.timer - repeat function every 'n' seconds
...
Then it will finish it's sleep and stop afterwards. There is no way to forcibly suspend a thread in python. This is a design decision made by the python developers. However the net result will be the same. You thread will still run (sleep) for a shor...
xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...
...crosoft Visual Studio 11.0\VC\include\xtree(1775): 参见对正在编译的函数 模板 实例化“std::pair<_Ty1,_Ty2> std::_Tree<_Traits>::_Insert_nohint<std::pair<const _Kty,_Ty>&,_Nodety>(bool,_Valty,_Nodety)”的引用
1> with
1> [
1> _Ty1=std::_Tree_iterato...
How to wait for all goroutines to finish without using time.Sleep?
...unc wait(seconds int, wg * sync.WaitGroup) {
defer wg.Done()
time.Sleep(time.Duration(seconds) * time.Second)
fmt.Println("Slept ", seconds, " seconds ..")
}
func main() {
var wg sync.WaitGroup
for i := 0; i <= 5; i++ {
wg.Add(1)
go wait(i, &wg)
...
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...
Show the progress of a Python multiprocessing pool imap_unordered call?
... system (Ubuntu) with both Python 2 and 3. I've used def do_word(*a): time.sleep(.1) as an example. If it doesn't work for you then create a complete minimal code example which demonstrates your issue: describe using words what do you expect to happen and what happens instead, mention how do you run...