aio_read also describes aio_return will return -1 on error:
However, aio_return man page does not explain this, it says the error
code returned directly:
"If the asynchronous I/O operation has completed, this function returns the
value that would have been returned in case of a synchronous
write(2), fsync(2) or fdatasync(2), call."
I don't know which is correct.
Best regards, Jon
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