Re: Review Request 64338: Reduced number of supported arguments in _Deferred conversion operators.

2017-12-05 Thread Michael Park

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/64338/#review192910
---


Ship it!




Ship It!

- Michael Park


On Dec. 5, 2017, 4:18 a.m., Dmitry Zhuk wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/64338/
> ---
> 
> (Updated Dec. 5, 2017, 4:18 a.m.)
> 
> 
> Review request for mesos, Benjamin Mahler and Michael Park.
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Conversion of `_Deferred` to `std::function` and `Deferred` currently
> supports up to 12 parameters in function signature. However, this is
> unnecessary and is a huge overhead. Most usages require just one
> parameter (e.g. when `defer` is used with `Future`). And there are few
> usages with two parameters (in `master.cpp` to initialize allocator, and
> in `slave.cpp` to install signal handler).
> This number of parameters is different from the number of parameters
> passed to `defer`, but it's related and can be defined as maximum number
> of placeholders that can be passed to `defer`.
> 
> Given that `deferred.hpp` is indirectly included in most source files,
> it is beneficial to keep this number low. This patch changes maximum
> number of parameters to 2.
> 
> 
> Diffs
> -
> 
>   3rdparty/libprocess/include/process/deferred.hpp 
> 950f1cccaf93298664a95ba1fd2c5d2a42deb725 
> 
> 
> Diff: https://reviews.apache.org/r/64338/diff/1/
> 
> 
> Testing
> ---
> 
> make check
> 
> 
> Thanks,
> 
> Dmitry Zhuk
> 
>



Review Request 64338: Reduced number of supported arguments in _Deferred conversion operators.

2017-12-05 Thread Dmitry Zhuk

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/64338/
---

Review request for mesos, Benjamin Mahler and Michael Park.


Repository: mesos


Description
---

Conversion of `_Deferred` to `std::function` and `Deferred` currently
supports up to 12 parameters in function signature. However, this is
unnecessary and is a huge overhead. Most usages require just one
parameter (e.g. when `defer` is used with `Future`). And there are few
usages with two parameters (in `master.cpp` to initialize allocator, and
in `slave.cpp` to install signal handler).
This number of parameters is different from the number of parameters
passed to `defer`, but it's related and can be defined as maximum number
of placeholders that can be passed to `defer`.

Given that `deferred.hpp` is indirectly included in most source files,
it is beneficial to keep this number low. This patch changes maximum
number of parameters to 2.


Diffs
-

  3rdparty/libprocess/include/process/deferred.hpp 
950f1cccaf93298664a95ba1fd2c5d2a42deb725 


Diff: https://reviews.apache.org/r/64338/diff/1/


Testing
---

make check


Thanks,

Dmitry Zhuk