HTTP string table

HTTP Client installs a standard string table, defining enumerations in the HTTP namespace. It is used to define method names, header names, session/transaction property names, parameter names for headers, and commonly used MIME types (used for the Accept and Content-Type headers).

Strings in the string table are constructed, copied and freed using RStringPool. The main points to note are that:

• Strings taken from the HTTP string table are accessed using RStringPool::String() or RStringPool::StringF(); they do not need to be closed.

• Strings not in the HTTP string table must be opened using RStringPool::OpenStringL() or RStringPool::OpenFStringL() and must be closed after use.

• Strings may be directly compared, whether RString or RStringF. Comparison is efficient and quick.

• Strings are not freed from memory until all instances that were Open()ed have been Close()d.

• The HTTP string pool is automatically created when the first session is started, and can be accessed via the handle returned by RHTTPSession::StringPool().