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POThread on Windows
 

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  1. POThread on Windows
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    <p>I have a small question about threading in Windows. I have the following code :</p> <p>main.cpp</p> <pre><code>int main(int ac, char **av) { std::vector&lt;Mthread *&gt; mythread; std::list&lt;std::string&gt; stack; DWORD id = 0; stack.push_back("Maison"); stack.push_back("Femmes"); stack.push_back("Fetes"); stack.push_back("Voitures"); stack.push_back("Nounours"); while (id != 5) { mythread.push_back(new Mthread()); mythread[mythread.size() - 1]-&gt;initThread(&amp;stack, id); id++; } id = 0; while (id != 5) { WaitForInputIdle(mythread[id]-&gt;getThread(), INFINITE); id++; } return (1); } </code></pre> <p>and Mthread.cpp who is creating my <code>Mthread</code> class.</p> <pre><code>Mthread::Mthread() {} Mthread::~Mthread() {} HANDLE Mthread::getThread(void) const { return (this-&gt;thread); } bool Mthread::initThread(std::list&lt;std::string&gt; *list, DWORD ID) { this-&gt;save = list; this-&gt;thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)Mthread::ThreadFunc, (LPVOID)list, 0, &amp;ID); if (this-&gt;thread == NULL) { std::cout &lt;&lt; "Erreur lors du lancement du thread" &lt;&lt; std::endl; return (false); } else { return (true); } } void Mthread::ThreadFunc(LPVOID list) { std::cout &lt;&lt; " is launch" &lt;&lt; std::endl; } </code></pre> <p>The code is working, but I have a small problem : no string is written on the terminal. But, if I change my code to :</p> <pre><code>bool Mthread::initThread(std::list&lt;std::string&gt; *list, DWORD ID) { this-&gt;save = list; this-&gt;thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)Mthread::ThreadFunc, (LPVOID)list, 0, &amp;ID); if (this-&gt;thread == NULL) { std::cout &lt;&lt; "Erreur lors du lancement du thread" &lt;&lt; std::endl; return (false); } else { std::cout &lt;&lt; "OK" &lt;&lt; std::endl; return (true); } } </code></pre> <p>Well "OK" and "is launch" is written 5 times on the terminal. I don't understand why. When I pass a small string a to <code>cout</code> it seems to be working, but when I don't nothing is written.</p>
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    1. USJoe McGrath
    1. USAdrien A.
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      1. POThread on Windows
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    1. COWhat did you expect to happen? What is the purpose of your std::list/stack? What do you mean by "a small writting on cout"?
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      1. POThread on Windows
      1. USwolfgang
    2. COwell, after i added `Sleep(4);`, only one `is launch` is writting instead of 5. Do you know a function who is waiting to the end execution of a thread ?
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      1. POThread on Windows
      1. USAdrien A.
 

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