From 216411b83967ae19e3c9c520e13ceb8bb383890c Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 30 Mar 2017 19:43:15 +0200 Subject: [PATCH] sockets: New helper socket_address_crumple() SocketAddress is a simple union, and simple unions are awkward: they have their variant members wrapped in a "data" object on the wire, and require additional indirections in C. I intend to limit its use to existing external interfaces. New ones should use SocketAddressFlat. I further intend to convert all internal interfaces to SocketAddressFlat. This helper should go away then. Signed-off-by: Markus Armbruster Message-id: 1490895797-29094-8-git-send-email-armbru@redhat.com Reviewed-by: Eric Blake Signed-off-by: Max Reitz --- include/qemu/sockets.h | 11 +++++++++++ util/qemu-sockets.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 5f1bab9b3e..7842f6d150 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -119,4 +119,15 @@ SocketAddress *socket_remote_address(int fd, Error **errp); */ char *socket_address_to_string(struct SocketAddress *addr, Error **errp); +/** + * socket_address_crumple: + * @addr_flat: the socket address to crumple + * + * Convert SocketAddressFlat to SocketAddress. Caller is responsible + * for freeing with qapi_free_SocketAddress(). + * + * Returns: the argument converted to SocketAddress. + */ +SocketAddress *socket_address_crumple(SocketAddressFlat *addr_flat); + #endif /* QEMU_SOCKETS_H */ diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 4ae37bd2a2..21442c30dc 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -25,6 +25,7 @@ #include "qapi/error.h" #include "qemu/sockets.h" #include "qemu/main-loop.h" +#include "qapi/clone-visitor.h" #include "qapi/qobject-input-visitor.h" #include "qapi/qobject-output-visitor.h" #include "qapi-visit.h" @@ -1341,3 +1342,34 @@ char *socket_address_to_string(struct SocketAddress *addr, Error **errp) } return buf; } + +SocketAddress *socket_address_crumple(SocketAddressFlat *addr_flat) +{ + SocketAddress *addr = g_new(SocketAddress, 1); + + switch (addr_flat->type) { + case SOCKET_ADDRESS_FLAT_TYPE_INET: + addr->type = SOCKET_ADDRESS_KIND_INET; + addr->u.inet.data = QAPI_CLONE(InetSocketAddress, + &addr_flat->u.inet); + break; + case SOCKET_ADDRESS_FLAT_TYPE_UNIX: + addr->type = SOCKET_ADDRESS_KIND_UNIX; + addr->u.q_unix.data = QAPI_CLONE(UnixSocketAddress, + &addr_flat->u.q_unix); + break; + case SOCKET_ADDRESS_FLAT_TYPE_VSOCK: + addr->type = SOCKET_ADDRESS_KIND_VSOCK; + addr->u.vsock.data = QAPI_CLONE(VsockSocketAddress, + &addr_flat->u.vsock); + break; + case SOCKET_ADDRESS_FLAT_TYPE_FD: + addr->type = SOCKET_ADDRESS_KIND_FD; + addr->u.fd.data = QAPI_CLONE(String, &addr_flat->u.fd); + break; + default: + abort(); + } + + return addr; +}