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ivshmem: use little-endian int64_t for the protocol

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The current ivshmem protocol uses 'long' for integers. But the
sizeof(long) depends on the host and the endianess is not defined, which
may cause portability troubles.

Instead, switch to using little-endian int64_t. This breaks the
protocol, except on x64 little-endian host where this change
should be compatible.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
This commit is contained in:
Marc-André Lureau 2015-09-24 12:55:01 +02:00
parent 660c97eef6
commit f7a199b2b4
7 changed files with 54 additions and 41 deletions
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4
contrib/ivshmem-server/ivshmem-server.h
View file

@ -51,7 +51,7 @@
typedef struct IvshmemServerPeer {
QTAILQ_ENTRY(IvshmemServerPeer) next; /**< next in list*/
int sock_fd; /**< connected unix sock */
long id; /**< the id of the peer */
int64_t id; /**< the id of the peer */
EventNotifier vectors[IVSHMEM_SERVER_MAX_VECTORS]; /**< one per vector */
unsigned vectors_count; /**< number of vectors */
} IvshmemServerPeer;
@ -155,7 +155,7 @@ int ivshmem_server_handle_fds(IvshmemServer *server, fd_set *fds, int maxfd);
* Returns: The peer structure, or NULL if not found
*/
IvshmemServerPeer *
ivshmem_server_search_peer(IvshmemServer *server, long peer_id);
ivshmem_server_search_peer(IvshmemServer *server, int64_t peer_id);
/**
* Dump information of this ivshmem server and its peers on stdout