windows::random_access_handle::write_some

windows::random_access_handle::write_some_at (2 of 2 overloads)

Write some data to the handle at the specified offset.

template<
    typename ConstBufferSequence>
std::size_t write_some_at(
    uint64_t offset,
    const ConstBufferSequence & buffers,
    asio::error_code & ec);

This function is used to write data to the random-access handle. The function call will block until one or more bytes of the data has been written successfully, or until an error occurs.

Parameters

offset: The offset at which the data will be written.
buffers: One or more data buffers to be written to the handle.
ec: Set to indicate what error occurred, if any.

Return Value

The number of bytes written. Returns 0 if an error occurred.

Remarks

The write_some operation may not transmit all of the data to the peer. Consider using the write_at function if you need to ensure that all data is written before the blocking operation completes.