[Tarantool-patches] [PATCH 12/13] coio: add *_noxc read / write functions

[Konstantin Osipov]

* Alexander Turenko <alexander.turenko at tarantool.org> [20/04/10 09:28]:
> The popen implementation is written in C and uses coio read / write
> functions. If an exception occurs, it'll pass through the C code. It
> should be catched to proceed correctly.
> 
> We usually have foo() and foo_xc() (exception) functions when both
> variants are necessary. Here I added non-conventional *_noxc() functions
> as the temporary solution to postpone refactoring of the code and all
> its usages.
> 
> Part of #4031
> ---
>  src/lib/core/coio.cc | 39 +++++++++++++++++++++++++++++++++++++++
>  src/lib/core/coio.h  | 41 +++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 80 insertions(+)
> 
> diff --git a/src/lib/core/coio.cc b/src/lib/core/coio.cc
> index 74e6240ce..6a113aa47 100644
> --- a/src/lib/core/coio.cc
> +++ b/src/lib/core/coio.cc
> @@ -381,6 +381,26 @@ coio_readn_ahead_timeout(struct ev_io *coio, void *buf, size_t sz, size_t bufsiz
>  	return nrd;
>  }
>  
> +/*
> + * FIXME: Rewrite coio_read_ahead_timeout() w/o C++ exceptions and
> + * drop this function.
> + */

Ugh.

Why can't you do it instead? This is necessary for a lot of other
patches, I believe Georgy's patches are doing it as well.


-- 
Konstantin Osipov, Moscow, Russia