Sure. Thanks! I would put more details from https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-lockfileex : """ Another important side-effect is that the locks are not advisory anymore: any IO on an exclusively locked file will always fail with EACCES when done from a separate file descriptor; write calls on a file locked for shared access will fail with EACCES when done from any file descriptor including the one used to lock the file. """ Thoughts? -- Best regards, Pavel Shilovsky вт, 16 мар. 2021 г. в 03:42, Aurélien Aptel <aaptel@xxxxxxxx>: > > Pavel Shilovsky <piastryyy@xxxxxxxxx> writes: > > It is not only about writing to a locked file. It is also about any IO > > against a locked file if such a file is locked through another file > > handle. Right? > > Yes that was implied, the write was a simple example to illustrate. I'll > update to make it more generic: > > Another important side-effect is that the locks are not advisory anymore: > any IO on a locked file will always fail with EACCES, > even when done from a separate file descriptor. > > If you have comments please provide direct text suggestion to save time. > > Cheers, > -- > Aurélien Aptel / SUSE Labs Samba Team > GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 > SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, DE > GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 247165 (AG München) >