boost shared_from_this<>()

c++ boost boost-asio boost-bind
Gearoid Murphy picture Gearoid Murphy · Sep 2, 2010 · Viewed 19.4k times · Source

could someone summarize in a few succinct words how the boost shared_from_this<>() smart pointer should be used, particularly from the perspective of registering handlers in the io_service using the bind function.

EDIT: Some of the responses have asked for more context. Basically, I'm looking for "gotchas", counter-intuitive behaviour people have observed using this mechanism.

Answer

Ben picture Ben · Sep 2, 2010

The biggest "gotcha" I've run into is that it's illegal to call shared_from_this from the constructor. This follows directly from the rule that a shared_ptr to the object must exist before you can call shared_from_this.

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