Thanks, Bill. I can declare a mutex but it doesn't have the lock/unlock methods described in the documentation-- the only thing that's public is the constructor/destructor. Could I have botched my installation of boost somehow? I just got it out of synaptic, thinking that that would be the least error-prone way to go. Also, in the interest of all that "teach a man to fish" stuff so I can quit bothering you, is there a document somewhere that explains what a "concept" is in boost terms? (ie, is it a design specification for developers to work off of, or is it a pure virtual class actually described in a .hpp file somewhere?) Thanks, Henry ----- Original Message ---- From: Bill Somerville <bill@classdesign.com> To: boost-users@lists.boost.org Sent: Thursday, April 24, 2008 4:02:44 PM Subject: Re: [Boost-users] Newbie question-- how do I get a Lockable? Hi Henry, Henry Holmes wrote:
Sorry if this is a dumb question-- it looks like just about every kind of lock/mutex I could declare in the documentation wants to be passed a Lockable object, but I can find no such thing in any of the header files. I have the Boost Thread library installed and am able to make and run threads, and I have all sorts of other lock and mutex stuff defined, it just does not seem to correspond to the documentation at all. Am I just horribly confused about what the documentation means? Any help is greatly appreciated. Lockable is not a type, it is a concept. Concepts are requirements a type must comply with to be used by a type or function. The Lockable concept is defined here http://www.boost.org/doc/libs/1_35_0/doc/html/thread/synchronization.html#th... .. The boost thread library provides types that implement these concepts and they may be substitued where a suitable concept is required. This is a form of polymorphism you may not be aware of. The types you may want to instantiate for your requirements are probably described here http://www.boost.org/doc/libs/1_35_0/doc/html/thread/synchronization.html#th... note that they all implement at least the Locakble concept.
HTH -- Bill Somerville Class Design Limited _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ