| Name : perl-Async-MergePoint
| |
| Version : 0.04
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : lp155.8.1
| Date : 2023-07-20 21:08:53
|
| Group : Development/Libraries/Perl
| Source RPM : perl-Async-MergePoint-0.04-lp155.8.1.src.rpm
|
| Size : 0.03 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Resynchronise diverged control flow
|
Description :
Often in program logic, multiple different steps need to be taken that are
independent of each other, but their total result is needed before the next
step can be taken. In synchonous code, the usual approach is to do them
sequentially.
An asynchronous or event-based program could do this, but if each step
involves some IO idle time, better overall performance can often be gained
by running the steps in parallel. A \'Async::MergePoint\' object can then be
used to wait for all of the steps to complete, before passing the combined
result of each step on to the next stage.
A merge point maintains a set of outstanding operations it is waiting on;
these are arbitrary string values provided at the object\'s construction.
Each time the \'done()\' method is called, the named item is marked as being
complete. When all of the required items are so marked, the \'on_finished\'
continuation is invoked.
For use cases where code may be split across several different lexical
scopes, it may not be convenient or possible to share a lexical variable,
to pass on the result of some asynchronous operation. In these cases, when
an item is marked as complete a value can also be provided which contains
the results of that step. The \'on_finished\' callback is passed a hash (in
list form, rather than by reference) of the collected item values.
This module was originally part of the IO::Async distribution, but was
removed under the inspiration of Pedro Melo\'s Async::Hooks distribution,
because it doesn\'t itself contain anything IO-specific.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-A/15.5/noarch |
