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e2f0f8ed25
1. Update our open() wrapper to check for NT's STATUS_DELETE_PENDING and translate it to Unix-like errors. This is done with RtlGetLastNtStatus(), which is dynamically loaded from ntdll. A new file win32ntdll.c centralizes lookup of NT functions, in case we decide to add more in the future. 2. Remove non-working code that was trying to do something similar for stat(), and just reuse the open() wrapper code. As a side effect, stat() also gains resilience against "sharing violation" errors. 3. Since stat() is used very early in process startup, remove the requirement that the Win32 signal event has been created before pgwin32_open_handle() is reached. Instead, teach pg_usleep() to fall back to a non-interruptible sleep if reached before the signal event is available. This could be back-patched, but for now it's in master only. The problem has apparently been with us for a long time and generated only a few complaints. Proposed patches trigger it more often, which led to this investigation and fix. Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Alexander Lakhin <exclusion@gmail.com> Reviewed-by: Juan José Santamaría Flecha <juanjo.santamaria@gmail.com> Discussion: https://postgr.es/m/CA%2BhUKGJz_pZTF9mckn6XgSv69%2BjGwdgLkxZ6b3NWGLBCVjqUZA%40mail.gmail.com |
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