mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-17 22:03:07 -06:00
54 lines
No EOL
2.4 KiB
C++
54 lines
No EOL
2.4 KiB
C++
topic "CoWork";
|
|
[2 $$0,0#00000000000000000000000000000000:Default]
|
|
[i448;a25;kKO9;2 $$1,0#37138531426314131252341829483380:class]
|
|
[l288;2 $$2,0#27521748481378242620020725143825:desc]
|
|
[0 $$3,0#96390100711032703541132217272105:end]
|
|
[H6;0 $$4,0#05600065144404261032431302351956:begin]
|
|
[i448;a25;kKO9;2 $$5,0#37138531426314131252341829483370:item]
|
|
[l288;a4;*@5;1 $$6,6#70004532496200323422659154056402:requirement]
|
|
[l288;i1121;b17;O9;~~~.1408;2 $$7,0#10431211400427159095818037425705:param]
|
|
[i448;b42;O9;2 $$8,8#61672508125594000341940100500538:tparam]
|
|
[b42;2 $$9,9#13035079074754324216151401829390:normal]
|
|
[{_}
|
|
[ {{10000@(113.42.0) [s0;%% [*@7;4 CoWork]]}}&]
|
|
[s3; &]
|
|
[s1;:CoWork`:`:class: [@(0.0.255)3 class][3 _][*3 CoWork]&]
|
|
[s9;%% This class is indented as loop`-parallelization tool. Whenever
|
|
loop iterations are independent (they do not share any data between
|
|
iterations), CoWork can be used to relatively easily spawn loop
|
|
iterations over threads and thus over CPU cores. Note that previous
|
|
statement does [* not] preclude CoWork iterations to share data
|
|
at all `- sharing data using Mutex or similar serialization mechanisms
|
|
still works. CoWork works with fixed`-size global thread pool,
|
|
which is created during initialization phase (first CoWork constructor
|
|
called). No more thread are created or destroyed during normal
|
|
work. Nesting of CoWork instances is also possible. Of course,
|
|
not only loop iterations can be parallelized, whenever there
|
|
are two or more actions that can run in parallel, you can use
|
|
CoWork.&]
|
|
[s9;%% Single`-threaded implementation simply performs all actions
|
|
submitted by Do in sequence.&]
|
|
[s3;%% &]
|
|
[s0;%% &]
|
|
[ {{10000F(128)G(128)@1 [s0;%% [* Public Method List]]}}&]
|
|
[s4;H0; &]
|
|
[s5;:CoWork`:`:Do`(Callback`): [@(0.0.255) void]_[* Do]([_^Callback^ Callback]_[*@3 cb])&]
|
|
[s2;%% Adds [%-*@3 cb] to be performed by any thread.&]
|
|
[s3;%% &]
|
|
[s4; &]
|
|
[s5;:CoWork`:`:operator`&`(Callback`): [_^CoWork^ CoWork][@(0.0.255) `&]_[* operator`&]([_^Callback^ C
|
|
allback]_[*@3 cb])&]
|
|
[s2;%% Same as Do([%-*@3 cb].); return `*this;&]
|
|
[s3;%% &]
|
|
[s4; &]
|
|
[s5;:CoWork`:`:Finish`(`): [@(0.0.255) void]_[* Finish]()&]
|
|
[s2;%% Waits until all jobs submitted using Do (or operator`&) are
|
|
finished.&]
|
|
[s3;%% &]
|
|
[s0;%% &]
|
|
[ {{10000F(128)G(128)@1 [s0;%% [* Destructor detail]]}}&]
|
|
[s3; &]
|
|
[s5;:CoWork`:`:`~CoWork`(`): [@(0.0.255) `~][* CoWork]()&]
|
|
[s2;%% Calls Finish().&]
|
|
[s3; &]
|
|
[s0; ]] |