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Settable socket option requirements

A type X meets the SettableSocketOption requirements if it satisfies the requirements listed below.

In the table below, a denotes a (possibly const) value of type X, p denotes a (possibly const) value that meets the Protocol requirements, and u denotes an identifier.

Table 27. SettableSocketOption requirements for extensible implementations

expression

type

assertion/note
pre/post-conditions

a.level(p)

int

Returns a value suitable for passing as the level argument to POSIX setsockopt() (or equivalent).

a.name(p)

int

Returns a value suitable for passing as the option_name argument to POSIX setsockopt() (or equivalent).

a.data(p)

const void*

Returns a pointer suitable for passing as the option_value argument to POSIX setsockopt() (or equivalent).

a.size(p)

size_t

Returns a value suitable for passing as the option_len argument to POSIX setsockopt() (or equivalent), after appropriate integer conversion has been performed.



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