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net/SocketAddress: add std::span cast operator

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This commit is contained in:
Max Kellermann 2022-05-11 21:07:47 +02:00 committed by Max Kellermann
parent 5fb97b81d1
commit 774024a41b
1 changed files with 13 additions and 0 deletions
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13
src/net/SocketAddress.hxx
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@ -33,6 +33,7 @@
#include "Features.hxx" #include "Features.hxx"
#include <cstddef> #include <cstddef>
#include <span>
#ifdef _WIN32 #ifdef _WIN32
#include <winsock2.h> // IWYU pragma: export #include <winsock2.h> // IWYU pragma: export
@ -69,6 +70,10 @@ public:
size_type _size) noexcept size_type _size) noexcept
:address(_address), size(_size) {} :address(_address), size(_size) {}
explicit SocketAddress(std::span<const std::byte> src) noexcept
:address((const struct sockaddr *)(const void *)src.data()),
size(src.size()) {}
static constexpr SocketAddress Null() noexcept { static constexpr SocketAddress Null() noexcept {
return nullptr; return nullptr;
} }
@ -154,6 +159,14 @@ public:
unsigned GetPort() const noexcept; unsigned GetPort() const noexcept;
#endif #endif
operator std::span<const std::byte>() const noexcept {
const void *q = reinterpret_cast<const void *>(address);
return {
(const std::byte *)q,
(std::size_t)size,
};
}
/** /**
* Return a buffer pointing to the "steady" portion of the * Return a buffer pointing to the "steady" portion of the
* address, i.e. without volatile parts like the port number. * address, i.e. without volatile parts like the port number.