folly::SocketAddress::ExternalUnixAddr Struct Reference

Public Member Functions
socklen_t	pathLength () const
void	init ()
void	init (const ExternalUnixAddr &other)
void	copy (const ExternalUnixAddr &other)
void	free ()

Public Attributes
struct sockaddr_un *	addr
socklen_t	len

Detailed Description

Unix socket addresses require more storage than IPv4 and IPv6 addresses, and are comparatively little-used.

Therefore SocketAddress' internal storage_ member variable doesn't contain room for a full unix address, to avoid wasting space in the common case. When we do need to store a Unix socket address, we use this ExternalUnixAddr structure to allocate a struct sockaddr_un separately on the heap.

Definition at line 555 of file SocketAddress.h.

Member Function Documentation

void folly::SocketAddress::ExternalUnixAddr::copy ( const ExternalUnixAddr &  other )

inline

Definition at line 573 of file SocketAddress.h.

References addr, and len.

Referenced by folly::SocketAddress::operator=().

                                             {
      len = other.len;
      memcpy(addr, other.addr, size_t(len));
    }

void folly::SocketAddress::ExternalUnixAddr::free ( )

inline

Definition at line 577 of file SocketAddress.h.

References addr, folly::SocketAddress::getAddrInfo(), folly::SocketAddress::getIpString(), folly::SocketAddress::setFromAddrInfo(), folly::SocketAddress::setFromLocalAddr(), folly::SocketAddress::setFromSocket(), string, uint16_t, and folly::SocketAddress::updateUnixAddressLength().

Referenced by folly::SocketAddress::operator=(), folly::SocketAddress::reset(), and folly::SocketAddress::~SocketAddress().

                {
      delete addr;
    }

void folly::SocketAddress::ExternalUnixAddr::init ( )

inline

Definition at line 563 of file SocketAddress.h.

Referenced by folly::SocketAddress::operator=(), and folly::SocketAddress::SocketAddress().

                {
      addr = new struct sockaddr_un;
      addr->sun_family = AF_UNIX;
      len = 0;
    }

void folly::SocketAddress::ExternalUnixAddr::init ( const ExternalUnixAddr &  other )

inline

Definition at line 568 of file SocketAddress.h.

References addr, and len.

                                             {
      addr = new struct sockaddr_un;
      len = other.len;
      memcpy(addr, other.addr, size_t(len));
    }

socklen_t folly::SocketAddress::ExternalUnixAddr::pathLength ( ) const

inline

Definition at line 559 of file SocketAddress.h.

Referenced by folly::SocketAddress::operator<(), and folly::SocketAddress::operator==().

                                 {
      return socklen_t(len - offsetof(struct sockaddr_un, sun_path));
    }

Member Data Documentation

struct sockaddr_un* folly::SocketAddress::ExternalUnixAddr::addr

Definition at line 556 of file SocketAddress.h.

Referenced by copy(), free(), folly::SocketAddress::getAddress(), init(), folly::SocketAddress::operator<(), and folly::SocketAddress::operator==().

socklen_t folly::SocketAddress::ExternalUnixAddr::len

Definition at line 557 of file SocketAddress.h.

Referenced by copy(), folly::SocketAddress::getAddress(), init(), and folly::SocketAddress::operator==().

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The documentation for this struct was generated from the following file:

• proxygen/folly/folly/SocketAddress.h