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How can one use multi threading in PHP applications
... }
public function run() {
if ($this->arg) {
$sleep = mt_rand(1, 10);
printf('%s: %s -start -sleeps %d' . "\n", date("g:i:sa"), $this->arg, $sleep);
sleep($sleep);
printf('%s: %s -finish' . "\n", date("g:i:sa"), $this->arg);
...
由“Pure Virtual Function Called” 考虑到的 - C/C++ - 清泛网 - 专注C/C++及内核技术
...al Function Called” 考虑到的1 派生类对象析构时，基类析构函数执行的前期会修改对象的虚函数表指针值 一般情况下（特指基类不使用novtable属性），debug编译出 1. 派生类对象析构时，基类析构函数执行的前期会修改对象...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...D项就是该菜单项对应的ID号了，添加菜单项单击消息处理函数时会用到，而标明项里的内容就是菜单项要显示的文本了。
这里还得注意一下“弹出”这个选项，勾上这个选项表明对应的菜单项还有下级菜单，如：
上面“转到...
How to profile a bash shell script slow startup?
...ere is a quick demo/test to show how it work:
for i in {1..4};do echo now;sleep .05;done| date -f - +%N
Sample script:
#!/bin/bash
exec 3>&2 2> >( tee /tmp/sample-$$.log |
sed -u 's/^.*$/now/' |
date -f - +%s.%N >/tmp/sample-$$.tim)
set -x
fo...
How to wait in a batch script? [duplicate]
...he ping command doesn't output anything to screen.
You can easily make a sleep command yourself by creating a sleep.bat somewhere in your PATH and use the above technique:
rem SLEEP.BAT - sleeps by the supplied number of seconds
@ping 192.0.2.2 -n 1 -w %1000 > nul
NOTE: The 192.0.2.x addr...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处有未经处理的异常: 0xC0000374:堆已损坏。 (参数: 0x77DC6668)这种错误可能就是与内存有关的释放问题。这里的错误示例代码主要是为了说明复制构造函数，尤其是含有...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...icrosoft® Windows® 平台中，可以通过调用 GetAttributes 库函数（在 windows.h 头文件中定义）进行此操作：
DWORD GetFileAttributes (LPCTSTR lpFileName);
对于目录，所得到的结果应该为 FILE_ATTRIBUTE_DIRECTORY，而您的代码必须检查是否...
C＋＋模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
模板有两种特化，全特化和偏特化（局部特化）
模板函数只能全特化，没有偏特化（以后可能有）。
模板类是可以全特化和偏特化的。
全特化，就是模板中模板参数全被指定为确定的类型。
全特化也就是定义了一个全新...
What is an uninterruptible process?
...hard drive, or moving heads. During most of this time, the process will be sleeping, blocking on the hardware.
While the process is sleeping in the system call, it can receive a Unix asynchronous signal (say, SIGTERM), then the following happens:
The system calls exits prematurely, and is set up ...
Multiprocessing vs Threading Python [duplicate]
...lt, self.niters)
class IoThread(threading.Thread):
def __init__(self, sleep):
super().__init__()
self.sleep = sleep
self.result = self.sleep
def run(self):
time.sleep(self.sleep)
class IoProcess(multiprocessing.Process):
def __init__(self, sleep):
...