Struct odbc_api::TooLargeBufferSize

pub struct TooLargeBufferSize {
    pub num_elements: usize,
    pub element_size: usize,
}

Error indicating a failed allocation for a column buffer

Fields

num_elements: usize

Number of elements supposed to be in the buffer.

element_size: usize

Element size in the buffer in bytes.

Implementations

impl TooLargeBufferSize

pub fn add_context(self, buffer_index: u16) -> Error

Map the column allocation error to an crate::Error adding the context of which column caused the allocation error.

Examples found in repository

src/buffers/any_buffer.rs (line 311)

    pub fn try_from_descs(
        capacity: usize,
        descs: impl IntoIterator<Item = BufferDesc>,
    ) -> Result<Self, Error> {
        let mut column_index = 0;
        let columns = descs
            .into_iter()
            .map(move |desc| {
                let buffer = AnyBuffer::try_from_desc(capacity, desc)
                    .map_err(|source| source.add_context(column_index))?;
                column_index += 1;
                Ok((column_index, buffer))
            })
            .collect::<Result<_, _>>()?;
        Ok(unsafe { ColumnarBuffer::new_unchecked(capacity, columns) })
    }

src/buffers/columnar.rs (line 335)

    pub fn from_max_str_lens(
        row_capacity: usize,
        max_str_lengths: impl IntoIterator<Item = usize>,
    ) -> Result<Self, Error> {
        let buffers = max_str_lengths
            .into_iter()
            .enumerate()
            .map(|(index, max_str_len)| {
                Ok((
                    (index + 1).try_into().unwrap(),
                    TextColumn::try_new(row_capacity, max_str_len)
                        .map_err(|source| source.add_context(index.try_into().unwrap()))?,
                ))
            })
            .collect::<Result<_, _>>()?;
        Ok(TextRowSet {
            row_capacity,
            num_rows: Box::new(0),
            columns: buffers,
        })
    }

Trait Implementations

impl Debug for TooLargeBufferSize

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

Formats the value using the given formatter.