delayed-execution

Delayed execution / scheduling with Redis?

天大地大妈咪最大 提交于 2019-11-27 15:21:09
问题 Any tricks to do delayed task execution (i.e. scheduling) based on Redis? Perhaps some clever way to delay BLPOP for a given number of seconds?.. 回答1: You can work with a ring of multiple LISTs that have a time component in their name. As time component you can take the current second (0-59). You always add tasks to the list for the current second. To get the jobs you do a BLPOP (with low timeout) only on those lists where it is guaranteed, that the content is older than the given number of

Delay Loading DLLs

徘徊边缘 提交于 2019-11-27 14:31:09
I am in desperate need of help, I need to manage an application dependency in Visual Studio. The application links to a DLL only on a specific version of windows, lets say Windows 7. and on other environments, the DLL should not be loaded. How will I be able to achieve that using DLL Delay Loading as this topic is completely new to me and there isn't any good references online for this particular matter. Regards Your project can specify that a dll it depends upon should but be loaded when needed, by specifying it in the Linker/Input/Delay Loaded DLLs field. This setting can be different for

How Can I Pass a Member Function to a Function Pointer?

我怕爱的太早我们不能终老 提交于 2019-11-27 08:57:00
class Child; class Parent { public: void (*funcPointer)(); void (*funcPointer2)(Parent* _this); void (Child::*funcPointer3)(); }; class Child: public Parent { public: void TestFunc(){ } void Do(){ Parent p; p.funcPointer=TestFunc; // error, '=': cannot convert from 'void (__thiscall Child::* )(void)' to 'void (__cdecl *)(void)' p.funcPointer2=TestFunc; // error too, '=': cannot convert from 'void (__thiscall Child::* )(void)' to 'void (__cdecl *)(Parent *)' p.funcPointer3=TestFunc; //this works p.funcPointer3=&Child::TestFunc; // this works too. p.funcPointer3(); // error, term does not

Delay Loading DLLs

天大地大妈咪最大 提交于 2019-11-26 16:46:53
问题 I am in desperate need of help, I need to manage an application dependency in Visual Studio. The application links to a DLL only on a specific version of windows, lets say Windows 7. and on other environments, the DLL should not be loaded. How will I be able to achieve that using DLL Delay Loading as this topic is completely new to me and there isn't any good references online for this particular matter. Regards 回答1: Your project can specify that a dll it depends upon should but be loaded

Compare using Thread.Sleep and Timer for delayed execution

℡╲_俬逩灬. 提交于 2019-11-26 07:33:28
I have a method which should be delayed running for a specified amount of time. Should I use Thread thread = new Thread(() => { Thread.Sleep(millisecond); action(); }); thread.IsBackground = true; thread.Start(); Or Timer timer = new Timer(o => action(), null, millisecond, -1); I had read some articles about using Thread.Sleep is bad design. But I don't really understand why. But for using Timer, Timer has dispose method. Since the execution is delayed, I don't know how to dispose Timer. Do you have any suggestions? Or if you have alternative codes for delayed execution are also appreciate.