The async_read_at
function
is a composed asynchronous operation that reads a certain amount of data
at the specified offset.
Start an asynchronous operation to read a certain amount of data at the specified offset.
template< typename AsyncRandomAccessReadDevice, typename MutableBufferSequence, typename ReadToken = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type>> auto async_read_at( AsyncRandomAccessReadDevice & d, uint64_t offset, const MutableBufferSequence & buffers, ReadToken && token = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type >()); » more... template< typename AsyncRandomAccessReadDevice, typename MutableBufferSequence, typename CompletionCondition, typename ReadToken = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type>> auto async_read_at( AsyncRandomAccessReadDevice & d, uint64_t offset, const MutableBufferSequence & buffers, CompletionCondition completion_condition, ReadToken && token = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type >()); » more... template< typename AsyncRandomAccessReadDevice, typename Allocator, typename ReadToken = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type>> auto async_read_at( AsyncRandomAccessReadDevice & d, uint64_t offset, basic_streambuf< Allocator > & b, ReadToken && token = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type >()); » more... template< typename AsyncRandomAccessReadDevice, typename Allocator, typename CompletionCondition, typename ReadToken = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type>> auto async_read_at( AsyncRandomAccessReadDevice & d, uint64_t offset, basic_streambuf< Allocator > & b, CompletionCondition completion_condition, ReadToken && token = default_completion_token_t< typename AsyncRandomAccessReadDevice::executor_type >()); » more...
Header: boost/asio/impl/read_at.hpp
Convenience header: boost/asio.hpp