Code Archives | The Old New Thing

Turning anything into a fire-and-forget coroutine

Raymond ChenMarch 22, 2019Mar 22, 201903/22/19

Turning on the metaprogramming.

Expressing fire-and-forget coroutines more explicitly, -or- How to turn any coroutine into fire-and-forget

Raymond ChenMarch 21, 2019Mar 21, 201903/21/19

Putting it at the call site instead of in the function itself.

winrt::fire_and_forget was too forgetful

Raymond ChenMarch 20, 2019Mar 20, 201903/20/19

Usually, you don’t care when it finishes, as long as it does.

How do I design a class so that methods must be called in a certain order?

Raymond ChenMarch 18, 2019Mar 18, 201903/18/19

Consider it a chain of operation objects.

How can we use IsBadWritePtr to fix a buffer overflow, if IsBadWritePtr is itself bad?

Raymond ChenMarch 15, 2019Mar 15, 201903/15/19

Don’t catch the overflow as it happens. Stop the overflow before it happens.

Even if your assembly language code doesn’t call any Windows APIs, you still have to follow the ABI

Raymond ChenMarch 8, 2019Mar 8, 201903/8/19

You’re not off by yourself; you’re part of a society.

What order are pages in a memory-mapped file flushed out to disk?

Raymond ChenMarch 7, 2019Mar 7, 201903/7/19

There isn’t one.

How do I destruct an object that keeps a reference to itself, because that reference prevents the object from being destructed

Raymond ChenMarch 6, 2019Mar 6, 201903/6/19

Keep a reference to the right thing.

How to compare two packed bitfields without having to unpack each field

Raymond ChenMarch 1, 2019Mar 1, 201903/1/19

The magic carry-out vector.

How should I report errors from my Windows Runtime API?

Raymond ChenFebruary 28, 2019Feb 28, 201902/28/19

It depends on what kind of error it is.