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protocol: add as_bytes() impl to V4l2Event types #32

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protocol: add as_bytes() impl to V4l2Event types #32

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20 changes: 20 additions & 0 deletions device/src/protocol.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -291,6 +291,16 @@ impl DequeueBufferEvent {
v4l2_buffer,
}
}

pub fn as_bytes(&self) -> &[u8] {
// SAFETY: `DequeueBufferEvent` is a C-compatible struct with no padding and fully initialized bytes.
unsafe {
std::slice::from_raw_parts(
self as *const Self as *const u8,
std::mem::size_of::<Self>(),
)
}
}
}

#[repr(C)]
Expand All @@ -306,6 +316,16 @@ impl SessionEvent {
v4l2_event,
}
}

pub fn as_bytes(&self) -> &[u8] {
// SAFETY: `SessionEvent` is a C-compatible struct with no padding and fully initialized bytes.
unsafe {
std::slice::from_raw_parts(
self as *const Self as *const u8,
std::mem::size_of::<Self>(),
)
}
}
}

#[allow(clippy::large_enum_variant)]
Expand Down