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http::buffer_body::value_type::size

The number of octets in the buffer pointed to by http::buffer_body::value_type::data.

Synopsis
std::size_t size = 0;
Description
When Serializing

If data is nullptr during serialization, this value is ignored. Otherwise, it represents the number of valid body octets pointed to by data.

When Parsing

The value of this field will be decremented during parsing to indicate the number of remaining free octets in the buffer pointed to by data. When it reaches zero, the parser will return http::need_buffer, indicating to the caller that the values of data and size should be updated to point to a new memory buffer.


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