[Wayland-bugs] [Bug 91945] Protocol documentation should indicate when wl_data_offer::receive requests should be sent

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91945

--- Comment #2 from Michael Catanzaro <mcatanzaro at gnome.org> ---
It's important to also consider some limit on the number of simultaneous data
requests. I previously discovered a file descriptor denial of service against
GTK+ by calling wl_data_offer::receive thousands of times in a loop in response
to receiving wl_data_device::drag_enter. Nowadays GTK+ is careful to allow only
one request at a time, avoiding this issue, but it's not clear from the
documentation if this is appropriate or not, as other clients may reasonably
expect to be able to call wl_data_offer::receive multiple times in a row.

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