int
main (int argc, char *argv[])
{
        glfs_t                   *fs = NULL;
        glfs_t                   *fs2 = NULL;
        glfs_t                   *fs_tmp = NULL;
        glfs_t                   *fs_tmp2 = NULL;
        int                       ret = 0, i;
        glfs_fd_t                *fd = NULL;
        glfs_fd_t                *fd2 = NULL;
        glfs_fd_t                *fd_tmp = NULL;
        glfs_fd_t                *fd_tmp2 = NULL;
        char                      readbuf[32];
        char                     *filename = "file_tmp";
        char                     *writebuf = NULL;
        char                     *vol_id  = NULL;
        unsigned int              cnt = 1;
        struct glfs_upcall       *cbk = NULL;
        char                     *logfile = NULL;
        char                     *volname = NULL;
        char                     *hostname = NULL;

        if (argc != 4) {
                fprintf (stderr, "Invalid argument\n");
                exit(1);
        }

        hostname = argv[1];
        volname = argv[2];
        logfile = argv[3];

        fs = glfs_new (volname);
        if (!fs) {
                fprintf (stderr, "glfs_new: returned NULL\n");
                return -1;
        }

        ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
        LOG_ERR("glfs_set_volfile_server", ret);

        ret = glfs_set_logging (fs, logfile, 7);
        LOG_ERR("glfs_set_logging", ret);

        ret = glfs_init (fs);
        LOG_ERR("glfs_init", ret);

        /* This does not block, but enables caching of events. Real
         * applications like NFS-Ganesha run this in a thread before activity
         * on the fs (through this instance) happens. */
        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
        LOG_ERR ("glfs_h_poll_upcall", ret);

        fs2 = glfs_new (volname);
        if (!fs2) {
                fprintf (stderr, "glfs_new fs2: returned NULL\n");
                return 1;
        }

        ret = glfs_set_volfile_server (fs2, "tcp", hostname, 24007);
        LOG_ERR("glfs_set_volfile_server-fs2", ret);

        ret = glfs_set_logging (fs2, logfile, 7);
        LOG_ERR("glfs_set_logging-fs2", ret);

        ret = glfs_init (fs2);
        LOG_ERR("glfs_init-fs2", ret);

        fd = glfs_creat(fs, filename, O_RDWR|O_SYNC, 0644);
        if (fd <= 0) {
                ret = -1;
                LOG_ERR ("glfs_creat", ret);
        }
        fprintf (stderr, "glfs-create fd - %d\n", fd);

        fd2 = glfs_open(fs2, filename, O_SYNC|O_RDWR|O_CREAT);
        if (fd2 <= 0) {
                ret = -1;
                LOG_ERR ("glfs_open-fs2", ret);
        }
        fprintf (stderr, "glfs-open fd2 - %d\n", fd2);

        do {
                if (cnt%2) {
                        fd_tmp = fd;
                        fs_tmp = fs;
                        fd_tmp2 = fd2;
                        fs_tmp2 = fs2;
                } else {
                        fd_tmp = fd2;
                        fs_tmp = fs2;
                        fd_tmp2 = fd;
                        fs_tmp2 = fs;
                }

                /* WRITE on fd_tmp */
                writebuf = malloc(10);
                if (writebuf) {
                        memcpy (writebuf, "abcd", 4);
                        ret = glfs_write (fd_tmp, writebuf, 4, 0);
                        if (ret <= 0)   {
                                ret = -1;
                                LOG_ERR ("glfs_write", ret);
                        } else {
                                fprintf (stderr,
                                         "glfs_write suceeded\n");
                        }
                        free(writebuf);
                } else {
                        fprintf (stderr,
                                 "Could not allocate writebuf\n");
                        return -1;
                }

                /* READ on fd_tmp2 */
                ret = glfs_lseek (fd_tmp2, 0, SEEK_SET);
                LOG_ERR ("glfs_lseek", ret);

                memset (readbuf, 0, sizeof(readbuf));
                ret = glfs_pread (fd_tmp2, readbuf, 4, 0, 0, NULL);

                if (ret <= 0) {
                        ret = -1;
                        LOG_ERR ("glfs_pread", ret);
                } else {
                        fprintf (stderr, "glfs_read: %s\n", readbuf);
                }

                /* Open() fops seem to be not performed on server side until
                 * there are I/Os on that fd
                 */
                if (cnt > 2) {
                        struct glfs_upcall_inode *in_arg = NULL;
                        enum glfs_upcall_reason   reason = 0;
                        struct glfs_object       *object = NULL;
                        uint64_t                  flags = 0;
                        uint64_t                  expire = 0;

                        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
                        LOG_ERR ("glfs_h_poll_upcall", ret);

                        reason = glfs_upcall_get_reason (cbk);

                        /* Expect 'GLFS_INODE_INVALIDATE' upcall event. */
                        if (reason == GLFS_UPCALL_INODE_INVALIDATE) {
                                in_arg = glfs_upcall_get_event (cbk);

                                object = glfs_upcall_inode_get_object (in_arg);
                                flags = glfs_upcall_inode_get_flags (in_arg);
                                expire = glfs_upcall_inode_get_expire (in_arg);

                                fprintf (stderr, " upcall event type - %d,"
                                         " object(%p), flags(%d), "
                                         " expire_time_attr(%d)\n" ,
                                         reason, object, flags, expire);
                        } else {
                                fprintf (stderr,
                                         "Didnt receive upcall notify event");
                                ret = -1;
                                goto err;
                        }

                        glfs_free (cbk);
                }

                sleep(5);
        } while (++cnt < 5);

err:
        glfs_close(fd);
        LOG_ERR ("glfs_close", ret);

        glfs_close(fd2);
        LOG_ERR ("glfs_close-fd2", ret);

out:
        if (fs) {
                ret = glfs_fini(fs);
                fprintf (stderr, "glfs_fini(fs) returned %d \n", ret);
        }

        if (fs2) {
                ret = glfs_fini(fs2);
                fprintf (stderr, "glfs_fini(fs2) returned %d \n", ret);
        }

        if (ret)
                exit(1);
        exit(0);
}
Exemple #2
0
int
main(int argc, char *argv[])
{
    glfs_t *fs = NULL;
    glfs_t *fs2 = NULL;
    int ret = 0, i;
    glfs_fd_t *fd = NULL;
    char *filename = "/a1";
    char *filename2 = "/a2";
    struct stat sb = {
        0,
    };
    char *logfile = NULL;
    char *volname = NULL;
    char *hostname = NULL;
    int cnt = 1;
    int upcall_received = 0;
    struct glfs_upcall *cbk = NULL;
    struct glfs_object *root = NULL, *leaf = NULL;
    unsigned char globjhdl[GFAPI_HANDLE_LENGTH];
    unsigned char globjhdl2[GFAPI_HANDLE_LENGTH];

    fprintf(stderr, "Starting libgfapi_fini\n");
    if (argc != 4) {
        fprintf(stderr, "Invalid argument\n");
        exit(1);
    }

    hostname = argv[1];
    volname = argv[2];
    logfile = argv[3];

    fs = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs, logfile, 7);
    LOG_ERR("glfs_set_logging", ret);

    ret = glfs_init(fs);
    LOG_ERR("glfs_init", ret);

    /* This does not block, but enables caching of events. Real
     * applications like NFS-Ganesha run this in a thread before activity
     * on the fs (through this instance) happens. */
    ret = glfs_h_poll_upcall(fs, &cbk);
    LOG_ERR("glfs_h_poll_upcall", ret);

    fs2 = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server(fs2, "tcp", hostname, 24007);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs2, logfile, 7);
    LOG_ERR("glfs_set_logging", ret);

    ret = glfs_init(fs2);
    LOG_ERR("glfs_init", ret);

    sleep(2);
    root = glfs_h_lookupat(fs, NULL, "/", &sb, 0);
    if (!root) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat root", ret);
    }
    leaf = glfs_h_lookupat(fs, root, filename, &sb, 0);
    if (!leaf) {
        ret = -1;
        LOG_IF_NO_ERR("glfs_h_lookupat leaf", ret);
    }

    root = glfs_h_lookupat(fs2, NULL, "/", &sb, 0);
    if (!root) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat root", ret);
    }
    leaf = glfs_h_creat(fs2, root, filename, O_RDWR, 0644, &sb);
    if (!leaf) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat leaf", ret);
    }
    fprintf(stderr, "glfs_h_create leaf - %p\n", leaf);

    while (cnt++ < 5 && !upcall_received) {
        enum glfs_upcall_reason reason = 0;
        struct glfs_upcall_inode *in_arg = NULL;

        ret = glfs_h_poll_upcall(fs, &cbk);
        LOG_ERR("glfs_h_poll_upcall", ret);
        if (ret)
            goto retry;

        reason = glfs_upcall_get_reason(cbk);
        fprintf(stderr, "Upcall received(%d)\n", reason);

        if (reason == GLFS_UPCALL_INODE_INVALIDATE) {
            struct glfs_object *object = NULL;

            in_arg = glfs_upcall_get_event(cbk);
            object = glfs_upcall_inode_get_object(in_arg);

            ret = glfs_h_extract_handle(root, globjhdl + GLAPI_UUID_LENGTH,
                                        GFAPI_HANDLE_LENGTH);
            LOG_ERR("glfs_h_extract_handle", (ret != 16));

            ret = glfs_h_extract_handle(object, globjhdl2 + GLAPI_UUID_LENGTH,
                                        GFAPI_HANDLE_LENGTH);
            LOG_ERR("glfs_h_extract_handle", (ret != 16));

            if (memcmp(globjhdl + GLAPI_UUID_LENGTH,
                       globjhdl2 + GLAPI_UUID_LENGTH, 16)) {
                fprintf(stderr, "Error: gfid mismatch\n");
                exit(1);
            }
            upcall_received = 1;
        }

    retry:
        if (!upcall_received)
            sleep(1); /* glfs_h_poll_upcall() does not block */

        if (!ret) {
            glfs_free(cbk);
            cbk = NULL;
        }
    }

    if (!upcall_received) {
        fprintf(stderr, "Error: Upcall not received\n");
        exit(1);
    }

    ret = glfs_fini(fs);
    LOG_ERR("glfs_fini", ret);

    fprintf(stderr, "End of libgfapi_fini\n");

    exit(0);
}