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POboost::mutex / How to test if a mutex is locked
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copied!<p>I know, I know, the title of my message may seem provocative, since boost::mutex purposefuly do not expose lock / unlock (in order to avoid dead locks).</p> <p>However the boost documentation is quite short on these aspects (to say the least), so I am asking if anyone can help me in the following use case.</p> <p>Suppose you have a class Foo, which has :<br> - a destructor that takes some time to complete<br> - a method that is called by a distinct thread, but should not be called during destruction </p> <pre><code>class Foo { public: virtual ~Foo() { //Time consuming operations here } //Method called by a timer belonging to a distinct class void OnTimer() { //Other time consuming stuff. Should not be called during destruction ! } }; </code></pre> <p>I tried (with no success) to implement a version based on boost::mutex </p> <pre><code>//boost::mutex implementation class Foo { public: Foo() { } virtual ~Foo() { { boost::mutex::scoped_lock lock(mDisposingMutex); //Time consuming operations here } } //Method called by a timer belonging to a distinct class void OnTimer() { { //Imaginary code here: mutex::locked() method is private !!! if ( ! mDisposingMutex.locked()) return; } //Other time consuming stuff. Should not be called during destruction ! } private: boost::mutex mDisposingMutex; }; </code></pre> <p>Am I totally wrong? Can anyone tell me how this is supposed to be done with boost::mutex?</p> <p>Thanks !</p>

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