Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

4 files changed, 0 insertions, 900 deletions

diff --git a/qemu/contrib/ivshmem-client/Makefile.objs b/qemu/contrib/ivshmem-client/Makefile.objs
deleted file mode 100644
index bfab2d20d..000000000
--- a/qemu/contrib/ivshmem-client/Makefile.objs
+++ /dev/null
@@ -1 +0,0 @@
-ivshmem-client-obj-y = ivshmem-client.o main.o
diff --git a/qemu/contrib/ivshmem-client/ivshmem-client.c b/qemu/contrib/ivshmem-client/ivshmem-client.c
deleted file mode 100644
index 44ae3646e..000000000
--- a/qemu/contrib/ivshmem-client/ivshmem-client.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include "qemu-common.h"
-#include "qemu/queue.h"
-
-#include "ivshmem-client.h"
-
-/* log a message on stdout if verbose=1 */
-#define IVSHMEM_CLIENT_DEBUG(client, fmt, ...) do { \
-        if ((client)->verbose) {         \
-            printf(fmt, ## __VA_ARGS__); \
-        }                                \
-    } while (0)
-
-/* read message from the unix socket */
-static int
-ivshmem_client_read_one_msg(IvshmemClient *client, int64_t *index, int *fd)
-{
-    int ret;
-    struct msghdr msg;
-    struct iovec iov[1];
-    union {
-        struct cmsghdr cmsg;
-        char control[CMSG_SPACE(sizeof(int))];
-    } msg_control;
-    struct cmsghdr *cmsg;
-
-    iov[0].iov_base = index;
-    iov[0].iov_len = sizeof(*index);
-
-    memset(&msg, 0, sizeof(msg));
-    msg.msg_iov = iov;
-    msg.msg_iovlen = 1;
-    msg.msg_control = &msg_control;
-    msg.msg_controllen = sizeof(msg_control);
-
-    ret = recvmsg(client->sock_fd, &msg, 0);
-    if (ret < sizeof(*index)) {
-        IVSHMEM_CLIENT_DEBUG(client, "cannot read message: %s\n",
-                             strerror(errno));
-        return -1;
-    }
-    if (ret == 0) {
-        IVSHMEM_CLIENT_DEBUG(client, "lost connection to server\n");
-        return -1;
-    }
-
-    *index = GINT64_FROM_LE(*index);
-    *fd = -1;
-
-    for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
-
-        if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
-            cmsg->cmsg_level != SOL_SOCKET ||
-            cmsg->cmsg_type != SCM_RIGHTS) {
-            continue;
-        }
-
-        memcpy(fd, CMSG_DATA(cmsg), sizeof(*fd));
-    }
-
-    return 0;
-}
-
-/* free a peer when the server advertises a disconnection or when the
- * client is freed */
-static void
-ivshmem_client_free_peer(IvshmemClient *client, IvshmemClientPeer *peer)
-{
-    unsigned vector;
-
-    QTAILQ_REMOVE(&client->peer_list, peer, next);
-    for (vector = 0; vector < peer->vectors_count; vector++) {
-        close(peer->vectors[vector]);
-    }
-
-    g_free(peer);
-}
-
-/* handle message coming from server (new peer, new vectors) */
-static int
-ivshmem_client_handle_server_msg(IvshmemClient *client)
-{
-    IvshmemClientPeer *peer;
-    int64_t peer_id;
-    int ret, fd;
-
-    ret = ivshmem_client_read_one_msg(client, &peer_id, &fd);
-    if (ret < 0) {
-        return -1;
-    }
-
-    /* can return a peer or the local client */
-    peer = ivshmem_client_search_peer(client, peer_id);
-
-    /* delete peer */
-    if (fd == -1) {
-
-        if (peer == NULL || peer == &client->local) {
-            IVSHMEM_CLIENT_DEBUG(client, "receive delete for invalid "
-                                 "peer %" PRId64 "\n", peer_id);
-            return -1;
-        }
-
-        IVSHMEM_CLIENT_DEBUG(client, "delete peer id = %" PRId64 "\n", peer_id);
-        ivshmem_client_free_peer(client, peer);
-        return 0;
-    }
-
-    /* new peer */
-    if (peer == NULL) {
-        peer = g_malloc0(sizeof(*peer));
-        peer->id = peer_id;
-        peer->vectors_count = 0;
-        QTAILQ_INSERT_TAIL(&client->peer_list, peer, next);
-        IVSHMEM_CLIENT_DEBUG(client, "new peer id = %" PRId64 "\n", peer_id);
-    }
-
-    /* new vector */
-    IVSHMEM_CLIENT_DEBUG(client, "  new vector %d (fd=%d) for peer id %"
-                         PRId64 "\n", peer->vectors_count, fd, peer->id);
-    if (peer->vectors_count >= G_N_ELEMENTS(peer->vectors)) {
-        IVSHMEM_CLIENT_DEBUG(client, "Too many vectors received, failing");
-        return -1;
-    }
-
-    peer->vectors[peer->vectors_count] = fd;
-    peer->vectors_count++;
-
-    return 0;
-}
-
-/* init a new ivshmem client */
-int
-ivshmem_client_init(IvshmemClient *client, const char *unix_sock_path,
-                    IvshmemClientNotifCb notif_cb, void *notif_arg,
-                    bool verbose)
-{
-    int ret;
-    unsigned i;
-
-    memset(client, 0, sizeof(*client));
-
-    ret = snprintf(client->unix_sock_path, sizeof(client->unix_sock_path),
-                   "%s", unix_sock_path);
-
-    if (ret < 0 || ret >= sizeof(client->unix_sock_path)) {
-        IVSHMEM_CLIENT_DEBUG(client, "could not copy unix socket path\n");
-        return -1;
-    }
-
-    for (i = 0; i < IVSHMEM_CLIENT_MAX_VECTORS; i++) {
-        client->local.vectors[i] = -1;
-    }
-
-    QTAILQ_INIT(&client->peer_list);
-    client->local.id = -1;
-
-    client->notif_cb = notif_cb;
-    client->notif_arg = notif_arg;
-    client->verbose = verbose;
-    client->shm_fd = -1;
-    client->sock_fd = -1;
-
-    return 0;
-}
-
-/* create and connect to the unix socket */
-int
-ivshmem_client_connect(IvshmemClient *client)
-{
-    struct sockaddr_un sun;
-    int fd, ret;
-    int64_t tmp;
-
-    IVSHMEM_CLIENT_DEBUG(client, "connect to client %s\n",
-                         client->unix_sock_path);
-
-    client->sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (client->sock_fd < 0) {
-        IVSHMEM_CLIENT_DEBUG(client, "cannot create socket: %s\n",
-                             strerror(errno));
-        return -1;
-    }
-
-    sun.sun_family = AF_UNIX;
-    ret = snprintf(sun.sun_path, sizeof(sun.sun_path), "%s",
-                   client->unix_sock_path);
-    if (ret < 0 || ret >= sizeof(sun.sun_path)) {
-        IVSHMEM_CLIENT_DEBUG(client, "could not copy unix socket path\n");
-        goto err_close;
-    }
-
-    if (connect(client->sock_fd, (struct sockaddr *)&sun, sizeof(sun)) < 0) {
-        IVSHMEM_CLIENT_DEBUG(client, "cannot connect to %s: %s\n", sun.sun_path,
-                             strerror(errno));
-        goto err_close;
-    }
-
-    /* first, we expect a protocol version */
-    if (ivshmem_client_read_one_msg(client, &tmp, &fd) < 0 ||
-        (tmp != IVSHMEM_PROTOCOL_VERSION) || fd != -1) {
-        IVSHMEM_CLIENT_DEBUG(client, "cannot read from server\n");
-        goto err_close;
-    }
-
-    /* then, we expect our index + a fd == -1 */
-    if (ivshmem_client_read_one_msg(client, &client->local.id, &fd) < 0 ||
-        client->local.id < 0 || fd != -1) {
-        IVSHMEM_CLIENT_DEBUG(client, "cannot read from server (2)\n");
-        goto err_close;
-    }
-    IVSHMEM_CLIENT_DEBUG(client, "our_id=%" PRId64 "\n", client->local.id);
-
-    /* now, we expect shared mem fd + a -1 index, note that shm fd
-     * is not used */
-    if (ivshmem_client_read_one_msg(client, &tmp, &fd) < 0 ||
-        tmp != -1 || fd < 0) {
-        if (fd >= 0) {
-            close(fd);
-        }
-        IVSHMEM_CLIENT_DEBUG(client, "cannot read from server (3)\n");
-        goto err_close;
-    }
-    client->shm_fd = fd;
-    IVSHMEM_CLIENT_DEBUG(client, "shm_fd=%d\n", fd);
-
-    return 0;
-
-err_close:
-    close(client->sock_fd);
-    client->sock_fd = -1;
-    return -1;
-}
-
-/* close connection to the server, and free all peer structures */
-void
-ivshmem_client_close(IvshmemClient *client)
-{
-    IvshmemClientPeer *peer;
-    unsigned i;
-
-    IVSHMEM_CLIENT_DEBUG(client, "close client\n");
-
-    while ((peer = QTAILQ_FIRST(&client->peer_list)) != NULL) {
-        ivshmem_client_free_peer(client, peer);
-    }
-
-    close(client->shm_fd);
-    client->shm_fd = -1;
-    close(client->sock_fd);
-    client->sock_fd = -1;
-    client->local.id = -1;
-    for (i = 0; i < IVSHMEM_CLIENT_MAX_VECTORS; i++) {
-        close(client->local.vectors[i]);
-        client->local.vectors[i] = -1;
-    }
-    client->local.vectors_count = 0;
-}
-
-/* get the fd_set according to the unix socket and peer list */
-void
-ivshmem_client_get_fds(const IvshmemClient *client, fd_set *fds, int *maxfd)
-{
-    int fd;
-    unsigned vector;
-
-    FD_SET(client->sock_fd, fds);
-    if (client->sock_fd >= *maxfd) {
-        *maxfd = client->sock_fd + 1;
-    }
-
-    for (vector = 0; vector < client->local.vectors_count; vector++) {
-        fd = client->local.vectors[vector];
-        FD_SET(fd, fds);
-        if (fd >= *maxfd) {
-            *maxfd = fd + 1;
-        }
-    }
-}
-
-/* handle events from eventfd: just print a message on notification */
-static int
-ivshmem_client_handle_event(IvshmemClient *client, const fd_set *cur, int maxfd)
-{
-    IvshmemClientPeer *peer;
-    uint64_t kick;
-    unsigned i;
-    int ret;
-
-    peer = &client->local;
-
-    for (i = 0; i < peer->vectors_count; i++) {
-        if (peer->vectors[i] >= maxfd || !FD_ISSET(peer->vectors[i], cur)) {
-            continue;
-        }
-
-        ret = read(peer->vectors[i], &kick, sizeof(kick));
-        if (ret < 0) {
-            return ret;
-        }
-        if (ret != sizeof(kick)) {
-            IVSHMEM_CLIENT_DEBUG(client, "invalid read size = %d\n", ret);
-            errno = EINVAL;
-            return -1;
-        }
-        IVSHMEM_CLIENT_DEBUG(client, "received event on fd %d vector %d: %"
-                             PRIu64 "\n", peer->vectors[i], i, kick);
-        if (client->notif_cb != NULL) {
-            client->notif_cb(client, peer, i, client->notif_arg);
-        }
-    }
-
-    return 0;
-}
-
-/* read and handle new messages on the given fd_set */
-int
-ivshmem_client_handle_fds(IvshmemClient *client, fd_set *fds, int maxfd)
-{
-    if (client->sock_fd < maxfd && FD_ISSET(client->sock_fd, fds) &&
-        ivshmem_client_handle_server_msg(client) < 0 && errno != EINTR) {
-        IVSHMEM_CLIENT_DEBUG(client, "ivshmem_client_handle_server_msg() "
-                             "failed\n");
-        return -1;
-    } else if (ivshmem_client_handle_event(client, fds, maxfd) < 0 &&
-               errno != EINTR) {
-        IVSHMEM_CLIENT_DEBUG(client, "ivshmem_client_handle_event() failed\n");
-        return -1;
-    }
-
-    return 0;
-}
-
-/* send a notification on a vector of a peer */
-int
-ivshmem_client_notify(const IvshmemClient *client,
-                      const IvshmemClientPeer *peer, unsigned vector)
-{
-    uint64_t kick;
-    int fd;
-
-    if (vector >= peer->vectors_count) {
-        IVSHMEM_CLIENT_DEBUG(client, "invalid vector %u on peer %" PRId64 "\n",
-                             vector, peer->id);
-        return -1;
-    }
-    fd = peer->vectors[vector];
-    IVSHMEM_CLIENT_DEBUG(client, "notify peer %" PRId64
-                         " on vector %d, fd %d\n", peer->id, vector, fd);
-
-    kick = 1;
-    if (write(fd, &kick, sizeof(kick)) != sizeof(kick)) {
-        fprintf(stderr, "could not write to %d: %s\n", peer->vectors[vector],
-                strerror(errno));
-        return -1;
-    }
-    return 0;
-}
-
-/* send a notification to all vectors of a peer */
-int
-ivshmem_client_notify_all_vects(const IvshmemClient *client,
-                                const IvshmemClientPeer *peer)
-{
-    unsigned vector;
-    int ret = 0;
-
-    for (vector = 0; vector < peer->vectors_count; vector++) {
-        if (ivshmem_client_notify(client, peer, vector) < 0) {
-            ret = -1;
-        }
-    }
-
-    return ret;
-}
-
-/* send a notification to all peers */
-int
-ivshmem_client_notify_broadcast(const IvshmemClient *client)
-{
-    IvshmemClientPeer *peer;
-    int ret = 0;
-
-    QTAILQ_FOREACH(peer, &client->peer_list, next) {
-        if (ivshmem_client_notify_all_vects(client, peer) < 0) {
-            ret = -1;
-        }
-    }
-
-    return ret;
-}
-
-/* lookup peer from its id */
-IvshmemClientPeer *
-ivshmem_client_search_peer(IvshmemClient *client, int64_t peer_id)
-{
-    IvshmemClientPeer *peer;
-
-    if (peer_id == client->local.id) {
-        return &client->local;
-    }
-
-    QTAILQ_FOREACH(peer, &client->peer_list, next) {
-        if (peer->id == peer_id) {
-            return peer;
-        }
-    }
-    return NULL;
-}
-
-/* dump our info, the list of peers their vectors on stdout */
-void
-ivshmem_client_dump(const IvshmemClient *client)
-{
-    const IvshmemClientPeer *peer;
-    unsigned vector;
-
-    /* dump local infos */
-    peer = &client->local;
-    printf("our_id = %" PRId64 "\n", peer->id);
-    for (vector = 0; vector < peer->vectors_count; vector++) {
-        printf("  vector %d is enabled (fd=%d)\n", vector,
-               peer->vectors[vector]);
-    }
-
-    /* dump peers */
-    QTAILQ_FOREACH(peer, &client->peer_list, next) {
-        printf("peer_id = %" PRId64 "\n", peer->id);
-
-        for (vector = 0; vector < peer->vectors_count; vector++) {
-            printf("  vector %d is enabled (fd=%d)\n", vector,
-                   peer->vectors[vector]);
-        }
-    }
-}
diff --git a/qemu/contrib/ivshmem-client/ivshmem-client.h b/qemu/contrib/ivshmem-client/ivshmem-client.h
deleted file mode 100644
index 54cde17d9..000000000
--- a/qemu/contrib/ivshmem-client/ivshmem-client.h
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-
-#ifndef _IVSHMEM_CLIENT_H_
-#define _IVSHMEM_CLIENT_H_
-
-/**
- * This file provides helper to implement an ivshmem client. It is used
- * on the host to ask QEMU to send an interrupt to an ivshmem PCI device in a
- * guest. QEMU also implements an ivshmem client similar to this one, they both
- * connect to an ivshmem server.
- *
- * A standalone ivshmem client based on this file is provided for debug/test
- * purposes.
- */
-
-#include <sys/select.h>
-
-#include "qemu/queue.h"
-#include "hw/misc/ivshmem.h"
-
-/**
- * Maximum number of notification vectors supported by the client
- */
-#define IVSHMEM_CLIENT_MAX_VECTORS 64
-
-/**
- * Structure storing a peer
- *
- * Each time a client connects to an ivshmem server, it is advertised to
- * all connected clients through the unix socket. When our ivshmem
- * client receives a notification, it creates a IvshmemClientPeer
- * structure to store the infos of this peer.
- *
- * This structure is also used to store the information of our own
- * client in (IvshmemClient)->local.
- */
-typedef struct IvshmemClientPeer {
-    QTAILQ_ENTRY(IvshmemClientPeer) next;    /**< next in list*/
-    int64_t id;                              /**< the id of the peer */
-    int vectors[IVSHMEM_CLIENT_MAX_VECTORS]; /**< one fd per vector */
-    unsigned vectors_count;                  /**< number of vectors */
-} IvshmemClientPeer;
-QTAILQ_HEAD(IvshmemClientPeerList, IvshmemClientPeer);
-
-typedef struct IvshmemClientPeerList IvshmemClientPeerList;
-typedef struct IvshmemClient IvshmemClient;
-
-/**
- * Typedef of callback function used when our IvshmemClient receives a
- * notification from a peer.
- */
-typedef void (*IvshmemClientNotifCb)(
-    const IvshmemClient *client,
-    const IvshmemClientPeer *peer,
-    unsigned vect, void *arg);
-
-/**
- * Structure describing an ivshmem client
- *
- * This structure stores all information related to our client: the name
- * of the server unix socket, the list of peers advertised by the
- * server, our own client information, and a pointer the notification
- * callback function used when we receive a notification from a peer.
- */
-struct IvshmemClient {
-    char unix_sock_path[PATH_MAX];      /**< path to unix sock */
-    int sock_fd;                        /**< unix sock filedesc */
-    int shm_fd;                         /**< shm file descriptor */
-
-    IvshmemClientPeerList peer_list;    /**< list of peers */
-    IvshmemClientPeer local;            /**< our own infos */
-
-    IvshmemClientNotifCb notif_cb;      /**< notification callback */
-    void *notif_arg;                    /**< notification argument */
-
-    bool verbose;                       /**< true to enable debug */
-};
-
-/**
- * Initialize an ivshmem client
- *
- * @client:         A pointer to an uninitialized IvshmemClient structure
- * @unix_sock_path: The pointer to the unix socket file name
- * @notif_cb:       If not NULL, the pointer to the function to be called when
- *                  our IvshmemClient receives a notification from a peer
- * @notif_arg:      Opaque pointer given as-is to the notification callback
- *                  function
- * @verbose:        True to enable debug
- *
- * Returns:         0 on success, or a negative value on error
- */
-int ivshmem_client_init(IvshmemClient *client, const char *unix_sock_path,
-                        IvshmemClientNotifCb notif_cb, void *notif_arg,
-                        bool verbose);
-
-/**
- * Connect to the server
- *
- * Connect to the server unix socket, and read the first initial
- * messages sent by the server, giving the ID of the client and the file
- * descriptor of the shared memory.
- *
- * @client: The ivshmem client
- *
- * Returns: 0 on success, or a negative value on error
- */
-int ivshmem_client_connect(IvshmemClient *client);
-
-/**
- * Close connection to the server and free all peer structures
- *
- * @client: The ivshmem client
- */
-void ivshmem_client_close(IvshmemClient *client);
-
-/**
- * Fill a fd_set with file descriptors to be monitored
- *
- * This function will fill a fd_set with all file descriptors
- * that must be polled (unix server socket and peers eventfd). The
- * function will not initialize the fd_set, it is up to the caller
- * to do this.
- *
- * @client: The ivshmem client
- * @fds:    The fd_set to be updated
- * @maxfd:  Must be set to the max file descriptor + 1 in fd_set. This value is
- *          updated if this function adds a greater fd in fd_set.
- */
-void ivshmem_client_get_fds(const IvshmemClient *client, fd_set *fds,
-                            int *maxfd);
-
-/**
- * Read and handle new messages
- *
- * Given a fd_set filled by select(), handle incoming messages from
- * server or peers.
- *
- * @client: The ivshmem client
- * @fds:    The fd_set containing the file descriptors to be checked. Note
- *          that file descriptors that are not related to our client are
- *          ignored.
- * @maxfd:  The maximum fd in fd_set, plus one.
- *
- * Returns: 0 on success, or a negative value on error
- */
-int ivshmem_client_handle_fds(IvshmemClient *client, fd_set *fds, int maxfd);
-
-/**
- * Send a notification to a vector of a peer
- *
- * @client: The ivshmem client
- * @peer:   The peer to be notified
- * @vector: The number of the vector
- *
- * Returns: 0 on success, or a negative value on error
- */
-int ivshmem_client_notify(const IvshmemClient *client,
-                          const IvshmemClientPeer *peer, unsigned vector);
-
-/**
- * Send a notification to all vectors of a peer
- *
- * @client: The ivshmem client
- * @peer:   The peer to be notified
- *
- * Returns: 0 on success, or a negative value on error (at least one
- *          notification failed)
- */
-int ivshmem_client_notify_all_vects(const IvshmemClient *client,
-                                    const IvshmemClientPeer *peer);
-
-/**
- * Broadcat a notification to all vectors of all peers
- *
- * @client: The ivshmem client
- *
- * Returns: 0 on success, or a negative value on error (at least one
- *          notification failed)
- */
-int ivshmem_client_notify_broadcast(const IvshmemClient *client);
-
-/**
- * Search a peer from its identifier
- *
- * Return the peer structure from its peer_id. If the given peer_id is
- * the local id, the function returns the local peer structure.
- *
- * @client:  The ivshmem client
- * @peer_id: The identifier of the peer structure
- *
- * Returns:  The peer structure, or NULL if not found
- */
-IvshmemClientPeer *
-ivshmem_client_search_peer(IvshmemClient *client, int64_t peer_id);
-
-/**
- * Dump information of this ivshmem client on stdout
- *
- * Dump the id and the vectors of the given ivshmem client and the list
- * of its peers and their vectors on stdout.
- *
- * @client: The ivshmem client
- */
-void ivshmem_client_dump(const IvshmemClient *client);
-
-#endif /* _IVSHMEM_CLIENT_H_ */
diff --git a/qemu/contrib/ivshmem-client/main.c b/qemu/contrib/ivshmem-client/main.c
deleted file mode 100644
index 33ae1daa1..000000000
--- a/qemu/contrib/ivshmem-client/main.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Copyright 6WIND S.A., 2014
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or
- * (at your option) any later version.  See the COPYING file in the
- * top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-
-#include "ivshmem-client.h"
-
-#define IVSHMEM_CLIENT_DEFAULT_VERBOSE        0
-#define IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH "/tmp/ivshmem_socket"
-
-typedef struct IvshmemClientArgs {
-    bool verbose;
-    const char *unix_sock_path;
-} IvshmemClientArgs;
-
-/* show ivshmem_client_usage and exit with given error code */
-static void
-ivshmem_client_usage(const char *name, int code)
-{
-    fprintf(stderr, "%s [opts]\n", name);
-    fprintf(stderr, "  -h: show this help\n");
-    fprintf(stderr, "  -v: verbose mode\n");
-    fprintf(stderr, "  -S <unix_sock_path>: path to the unix socket\n"
-                    "     to connect to.\n"
-                    "     default=%s\n", IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH);
-    exit(code);
-}
-
-/* parse the program arguments, exit on error */
-static void
-ivshmem_client_parse_args(IvshmemClientArgs *args, int argc, char *argv[])
-{
-    int c;
-
-    while ((c = getopt(argc, argv,
-                       "h"  /* help */
-                       "v"  /* verbose */
-                       "S:" /* unix_sock_path */
-                      )) != -1) {
-
-        switch (c) {
-        case 'h': /* help */
-            ivshmem_client_usage(argv[0], 0);
-            break;
-
-        case 'v': /* verbose */
-            args->verbose = 1;
-            break;
-
-        case 'S': /* unix_sock_path */
-            args->unix_sock_path = optarg;
-            break;
-
-        default:
-            ivshmem_client_usage(argv[0], 1);
-            break;
-        }
-    }
-}
-
-/* show command line help */
-static void
-ivshmem_client_cmdline_help(void)
-{
-    printf("dump: dump peers (including us)\n"
-           "int <peer> <vector>: notify one vector on a peer\n"
-           "int <peer> all: notify all vectors of a peer\n"
-           "int all: notify all vectors of all peers (excepting us)\n");
-}
-
-/* read stdin and handle commands */
-static int
-ivshmem_client_handle_stdin_command(IvshmemClient *client)
-{
-    IvshmemClientPeer *peer;
-    char buf[128];
-    char *s, *token;
-    int ret;
-    int peer_id, vector;
-
-    memset(buf, 0, sizeof(buf));
-    ret = read(0, buf, sizeof(buf) - 1);
-    if (ret < 0) {
-        return -1;
-    }
-
-    s = buf;
-    while ((token = strsep(&s, "\n\r;")) != NULL) {
-        if (!strcmp(token, "")) {
-            continue;
-        }
-        if (!strcmp(token, "?")) {
-            ivshmem_client_cmdline_help();
-        }
-        if (!strcmp(token, "help")) {
-            ivshmem_client_cmdline_help();
-        } else if (!strcmp(token, "dump")) {
-            ivshmem_client_dump(client);
-        } else if (!strcmp(token, "int all")) {
-            ivshmem_client_notify_broadcast(client);
-        } else if (sscanf(token, "int %d %d", &peer_id, &vector) == 2) {
-            peer = ivshmem_client_search_peer(client, peer_id);
-            if (peer == NULL) {
-                printf("cannot find peer_id = %d\n", peer_id);
-                continue;
-            }
-            ivshmem_client_notify(client, peer, vector);
-        } else if (sscanf(token, "int %d all", &peer_id) == 1) {
-            peer = ivshmem_client_search_peer(client, peer_id);
-            if (peer == NULL) {
-                printf("cannot find peer_id = %d\n", peer_id);
-                continue;
-            }
-            ivshmem_client_notify_all_vects(client, peer);
-        } else {
-            printf("invalid command, type help\n");
-        }
-    }
-
-    printf("cmd> ");
-    fflush(stdout);
-    return 0;
-}
-
-/* listen on stdin (command line), on unix socket (notifications of new
- * and dead peers), and on eventfd (IRQ request) */
-static int
-ivshmem_client_poll_events(IvshmemClient *client)
-{
-    fd_set fds;
-    int ret, maxfd;
-
-    while (1) {
-
-        FD_ZERO(&fds);
-        FD_SET(0, &fds); /* add stdin in fd_set */
-        maxfd = 1;
-
-        ivshmem_client_get_fds(client, &fds, &maxfd);
-
-        ret = select(maxfd, &fds, NULL, NULL, NULL);
-        if (ret < 0) {
-            if (errno == EINTR) {
-                continue;
-            }
-
-            fprintf(stderr, "select error: %s\n", strerror(errno));
-            break;
-        }
-        if (ret == 0) {
-            continue;
-        }
-
-        if (FD_ISSET(0, &fds) &&
-            ivshmem_client_handle_stdin_command(client) < 0 && errno != EINTR) {
-            fprintf(stderr, "ivshmem_client_handle_stdin_command() failed\n");
-            break;
-        }
-
-        if (ivshmem_client_handle_fds(client, &fds, maxfd) < 0) {
-            fprintf(stderr, "ivshmem_client_handle_fds() failed\n");
-            break;
-        }
-    }
-
-    return ret;
-}
-
-/* callback when we receive a notification (just display it) */
-static void
-ivshmem_client_notification_cb(const IvshmemClient *client,
-                               const IvshmemClientPeer *peer,
-                               unsigned vect, void *arg)
-{
-    (void)client;
-    (void)arg;
-    printf("receive notification from peer_id=%" PRId64 " vector=%u\n",
-           peer->id, vect);
-}
-
-int
-main(int argc, char *argv[])
-{
-    struct sigaction sa;
-    IvshmemClient client;
-    IvshmemClientArgs args = {
-        .verbose = IVSHMEM_CLIENT_DEFAULT_VERBOSE,
-        .unix_sock_path = IVSHMEM_CLIENT_DEFAULT_UNIX_SOCK_PATH,
-    };
-
-    /* parse arguments, will exit on error */
-    ivshmem_client_parse_args(&args, argc, argv);
-
-    /* Ignore SIGPIPE, see this link for more info:
-     * http://www.mail-archive.com/libevent-users@monkey.org/msg01606.html */
-    sa.sa_handler = SIG_IGN;
-    sa.sa_flags = 0;
-    if (sigemptyset(&sa.sa_mask) == -1 ||
-        sigaction(SIGPIPE, &sa, 0) == -1) {
-        perror("failed to ignore SIGPIPE; sigaction");
-        return 1;
-    }
-
-    ivshmem_client_cmdline_help();
-    printf("cmd> ");
-    fflush(stdout);
-
-    if (ivshmem_client_init(&client, args.unix_sock_path,
-                            ivshmem_client_notification_cb, NULL,
-                            args.verbose) < 0) {
-        fprintf(stderr, "cannot init client\n");
-        return 1;
-    }
-
-    while (1) {
-        if (ivshmem_client_connect(&client) < 0) {
-            fprintf(stderr, "cannot connect to server, retry in 1 second\n");
-            sleep(1);
-            continue;
-        }
-
-        fprintf(stdout, "listen on server socket %d\n", client.sock_fd);
-
-        if (ivshmem_client_poll_events(&client) == 0) {
-            continue;
-        }
-
-        /* disconnected from server, reset all peers */
-        fprintf(stdout, "disconnected from server\n");
-
-        ivshmem_client_close(&client);
-    }
-
-    return 0;
-}