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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-11-14 09:05:38 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-02-25 16:18:08 +0100 |
| commit | 8a420dd109b9e4e2244cfa32bc92829093268b3e (patch) | |
| tree | 40e9db642b552c7bb840cd7f46bda933d2e0c517 /rust/qemu-api/src/prelude.rs | |
| parent | 4cfe9edb1b1961af9cda74351f73b0abb3159b67 (diff) | |
| download | qemu-8a420dd109b9e4e2244cfa32bc92829093268b3e.zip qemu-8a420dd109b9e4e2244cfa32bc92829093268b3e.tar.gz qemu-8a420dd109b9e4e2244cfa32bc92829093268b3e.tar.bz2 | |
rust: add module to convert between success/-errno and io::Result
It is a common convention in QEMU to return a positive value in case of
success, and a negated errno value in case of error. Unfortunately,
using errno portably in Rust is a bit complicated; on Unix the errno
values are supported natively by io::Error, but on Windows they are not;
so, use the libc crate.
This is a set of utility functions that are used by both chardev and
block layer bindings.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'rust/qemu-api/src/prelude.rs')
| -rw-r--r-- | rust/qemu-api/src/prelude.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/rust/qemu-api/src/prelude.rs b/rust/qemu-api/src/prelude.rs index fbf0ee2..634acf3 100644 --- a/rust/qemu-api/src/prelude.rs +++ b/rust/qemu-api/src/prelude.rs @@ -9,6 +9,8 @@ pub use crate::bitops::IntegerExt; pub use crate::cell::BqlCell; pub use crate::cell::BqlRefCell; +pub use crate::errno; + pub use crate::qdev::DeviceMethods; pub use crate::qom::InterfaceType; |