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Coro::BDB - truly asynchronous bdb access

BDB(3pm) User Contributed Perl Documentation BDB(3pm)


Coro::BDB - truly asynchronous bdb access


   use Coro::BDB;
   use BDB;
   # can now use any of the bdb requests


This module is an AnyEvent user, you need to make sure that you use and run a supported event loop.
This module implements a thin wrapper around the BDB module: Each BDB request that could block and doesn't get passed a callback will normally block all coroutines. after loading this module, this will no longer be the case (it provides a suitable sync prepare callback).
It will also register an AnyEvent watcher as soon as AnyEvent chooses an event loop.
The AnyEvent watcher can be disabled by executing "undef $Coro::BDB::WATCHER". Please notify the author of when and why you think this was necessary.
This module does not export anything (unlike Coro::AIO), as BDB already supports leaving out the callback. (Unfortunately, it ties a C context to each coroutine executing such a callback, so in the future, it might export more efficient wrappers).


BDB of course.


   Marc A. Lehmann <>
2017-10-29 perl v5.26.1