Struct oboe_sys::oboe_ResultWithValue

#[repr(C)]
pub struct oboe_ResultWithValue<T> {
    pub mValue: T,
    pub mError: oboe_Result,
    pub _phantom_0: PhantomData<UnsafeCell<T>>,
}

A ResultWithValue can store both the result of an operation (either OK or an error) and a value.

It has been designed for cases where the caller needs to know whether an operation succeeded and, if it did, a value which was obtained during the operation.

For example, when reading from a stream the caller needs to know the result of the read operation and, if it was successful, how many frames were read. Note that ResultWithValue can be evaluated as a boolean so it’s simple to check whether the result is OK.

ResultWithValue resultOfRead = myStream.read(&buffer, numFrames, timeoutNanoseconds);

if (resultOfRead) { LOGD(“Frames read: %d”, resultOfRead.value()); } else { LOGD(“Error reading from stream: %s”, resultOfRead.error()); }

Fields

mValue: T

mError: oboe_Result

_phantom_0: PhantomData<UnsafeCell<T>>

Trait Implementations

impl<T: Clone> Clone for oboe_ResultWithValue<T>

fn clone(&self) -> oboe_ResultWithValue<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for oboe_ResultWithValue<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Copy> Copy for oboe_ResultWithValue<T>