如何创建一个boost线程与数据？ [英] How to create a boost thread with data?

问题描述

我遇到了一些与boost :: bind和创建线程有关的问题。

I'm running into some issues with boost::bind and creating threads.

基本上，我想在扫描器对象，使用
绑定。

Essentially, I would like to call a "scan" function on a "Scanner" object, using bind.

像这样：

  Scanner scanner;
   int id_to_scan = 1;

   boost::thread thr1(boost::bind(&scanner::scan));

但是，我对语法感到厌烦。如何将数据传递到扫描？作为构造函数的一部分？

However, I'm getting tripped up on syntax. How do I pass the data into scan? As part of the constructor?

推荐答案

请记住，任何成员函数的第一个参数是对象。

Keep in mind that the first argument to any member function is the object.

所以如果你想调用：

scanner* s;
s->scan()

with bind you would use:

boost::bind(&scanner::scan, s);

如果您想呼叫：

s->scan(42);

使用：

boost::bind(&scanner::scan, s, 42);

由于我经常想要在创建绑定对象的对象上调用绑定，我经常这样做：

Since I often want bind to be called on the object creating the bind object, I often do this:

boost::bind(&scanner::scan, this);

祝你好运。

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