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Code Issues Releases Wiki Activity

ircd::ios: Add no-op synchronous defer overload; use w/ this_ctx::yield().

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This commit is contained in:
Jason Volk 2019-07-05 17:34:42 -07:00
parent f48182404f
commit 7af8e5774c
3 changed files with 63 additions and 18 deletions
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3
include/ircd/ios.h
View file

@ -77,6 +77,7 @@ struct ircd::ios::dispatch
{
dispatch(descriptor &, std::function<void ()>);
dispatch(descriptor &, synchronous_t, const std::function<void ()> &);
dispatch(descriptor &, synchronous_t);
dispatch(std::function<void ()>);
dispatch(synchronous_t, const std::function<void ()> &);
};
@ -85,6 +86,7 @@ struct ircd::ios::defer
{
defer(descriptor &, std::function<void ()>);
defer(descriptor &, synchronous_t, const std::function<void ()> &);
defer(descriptor &, synchronous_t);
defer(std::function<void ()>);
defer(synchronous_t, const std::function<void ()> &);
};
@ -93,6 +95,7 @@ struct ircd::ios::post
{
post(descriptor &, std::function<void ()>);
post(descriptor &, synchronous_t, const std::function<void ()> &);
post(descriptor &, synchronous_t);
post(std::function<void ()>);
post(synchronous_t, const std::function<void ()> &);
};

15
ircd/ctx.cc
View file

@ -638,19 +638,10 @@ ircd::ctx::this_ctx::yield()
"ircd::ctx courtesy yield"
};
bool done(false);
const auto restore([&done, &me(cur())]
ircd::defer
{
done = true;
notify(me);
});
// All spurious notifications are ignored until `done`
ircd::defer(descriptor, restore); do
{
wait();
}
while(!done);
descriptor, ios::synchronous
};
}
ulong

63
ircd/ios.cc
View file

@ -290,14 +290,31 @@ ircd::ios::dispatch_desc
};
ircd::ios::dispatch::dispatch(std::function<void ()> function)
:dispatch
{
dispatch_desc, std::move(function)
}
{
dispatch(dispatch_desc, std::move(function));
}
ircd::ios::dispatch::dispatch(synchronous_t,
const std::function<void ()> &function)
:dispatch
{
dispatch_desc, synchronous, std::move(function)
}
{
}
ircd::ios::dispatch::dispatch(descriptor &descriptor,
synchronous_t)
:dispatch
{
dispatch_desc, synchronous, []
{
}
}
{
dispatch(dispatch_desc, synchronous, std::move(function));
}
ircd::ios::dispatch::dispatch(descriptor &descriptor,
@ -337,14 +354,31 @@ ircd::ios::defer_desc
};
ircd::ios::defer::defer(std::function<void ()> function)
:defer
{
defer_desc, std::move(function)
}
{
defer(defer_desc, std::move(function));
}
ircd::ios::defer::defer(synchronous_t,
const std::function<void ()> &function)
:defer
{
defer_desc, synchronous, function
}
{
}
ircd::ios::defer::defer(descriptor &descriptor,
synchronous_t)
:defer
{
defer_desc, synchronous, []
{
}
}
{
defer(defer_desc, synchronous, function);
}
ircd::ios::defer::defer(descriptor &descriptor,
@ -384,14 +418,31 @@ ircd::ios::post_desc
};
ircd::ios::post::post(std::function<void ()> function)
:post
{
post_desc, std::move(function)
}
{
post(post_desc, std::move(function));
}
ircd::ios::post::post(synchronous_t,
const std::function<void ()> &function)
:post
{
post_desc, synchronous, function
}
{
}
ircd::ios::post::post(descriptor &descriptor,
synchronous_t)
:post
{
descriptor, synchronous, []
{
}
}
{
post(post_desc, synchronous, function);
}
ircd::ios::post::post(descriptor &descriptor,