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ircd::ctx: Improve the spawn sequence to avoid complications.

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This commit is contained in:
Jason Volk 2017-11-01 15:56:40 -07:00
parent 570f4d7f54
commit 26800d5db4
1 changed files with 18 additions and 13 deletions
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31
ircd/ctx.cc
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@ -549,23 +549,28 @@ ircd::ctx::context::context(const char *const &name,
std::bind(&ircd::ctx::spawn, c.get(), std::move(func))
};
if(flags & POST)
ios->post(std::move(spawn));
else if(flags & DISPATCH)
ios->dispatch(std::move(spawn));
else
const unwind release{[this, &flags]
{
// The current context must be reasserted if spawn returns here
const unwind recurrent([current(ircd::ctx::current)]
{
ircd::ctx::current = current;
});
if(flags & DETACH)
this->c.release();
}};
spawn();
if(flags & POST)
{
ios->post(std::move(spawn));
return;
}
if(flags & DETACH)
c.release();
// The current context must be reasserted if spawn returns here
const unwind recurrent([current(ircd::ctx::current)]
{
ircd::ctx::current = current;
});
if(flags & DISPATCH)
ios->dispatch(std::move(spawn));
else
spawn();
}
ircd::ctx::context::context(const char *const &name,