async_write_at 函数是一个组合的异步操作，在完成之前，在指定的偏移量处写入一定量的数据。
启动一个异步操作，在指定的偏移量处写入所有提供的数据。
template< typename AsyncRandomAccessWriteDevice, typename ConstBufferSequence, typename WriteToken = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type>> DEDUCED async_write_at( AsyncRandomAccessWriteDevice & d, uint64_t offset, const ConstBufferSequence & buffers, WriteToken && token = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type >(), constraint_t< !is_completion_condition< WriteToken >::value > = 0); » more...
启动一个异步操作，在指定的偏移量处写入一定量的数据。
template< typename AsyncRandomAccessWriteDevice, typename ConstBufferSequence, typename CompletionCondition, typename WriteToken = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type>> DEDUCED async_write_at( AsyncRandomAccessWriteDevice & d, uint64_t offset, const ConstBufferSequence & buffers, CompletionCondition completion_condition, WriteToken && token = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type >(), constraint_t< is_completion_condition< CompletionCondition >::value > = 0); » more...
启动一个异步操作，在指定的偏移量处写入所有提供的数据。
template< typename AsyncRandomAccessWriteDevice, typename Allocator, typename WriteToken = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type>> DEDUCED async_write_at( AsyncRandomAccessWriteDevice & d, uint64_t offset, basic_streambuf< Allocator > & b, WriteToken && token = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type >(), constraint_t< !is_completion_condition< WriteToken >::value > = 0); » more...
启动一个异步操作，在指定的偏移量处写入一定量的数据。
template< typename AsyncRandomAccessWriteDevice, typename Allocator, typename CompletionCondition, typename WriteToken = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type>> DEDUCED async_write_at( AsyncRandomAccessWriteDevice & d, uint64_t offset, basic_streambuf< Allocator > & b, CompletionCondition completion_condition, WriteToken && token = default_completion_token_t< typename AsyncRandomAccessWriteDevice::executor_type >(), constraint_t< is_completion_condition< CompletionCondition >::value > = 0); » more...
头文件: boost/asio/write_at.hpp
便捷头文件: boost/asio.hpp
