> ... and the reassignment to errno at the
> bottom of my_sock_read needs to be SOCK_ERRNO_SET(); and why doesn't
> my_sock_write have a reassignment at all?
Comparison to the backend versions of these routines, which have been
through quite a few releases, suggests that the reassignment to errno at
the bottom of my_sock_read is simply bogus/unnecessary. There is no
reason to believe that BIO_clear_retry_flags, BIO_set_retry_read, or
BIO_set_retry_write will munge errno. Hence we should remove that flight
of fantasy rather than clone it into my_sock_write.
regards, tom lane
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