コード例 #1
0
ファイル: qemu-io.c プロジェクト: junbo-hu/xen-4.5.0
static int open_f(BlockDriverState *bs, int argc, char **argv)
{
    int flags = 0;
    int readonly = 0;
    int growable = 0;
    int c;
    QemuOpts *qopts;
    QDict *opts = NULL;

    while ((c = getopt(argc, argv, "snrgo:")) != EOF) {
        switch (c) {
        case 's':
            flags |= BDRV_O_SNAPSHOT;
            break;
        case 'n':
            flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB;
            break;
        case 'r':
            readonly = 1;
            break;
        case 'g':
            growable = 1;
            break;
        case 'o':
            qopts = qemu_opts_parse(&empty_opts, optarg, 0);
            if (qopts == NULL) {
                printf("could not parse option list -- %s\n", optarg);
                return 0;
            }
            opts = qemu_opts_to_qdict(qopts, opts);
            qemu_opts_del(qopts);
            break;
        default:
            return qemuio_command_usage(&open_cmd);
        }
    }

    if (!readonly) {
        flags |= BDRV_O_RDWR;
    }

    if (optind == argc - 1) {
        return openfile(argv[optind], flags, growable, opts);
    } else if (optind == argc) {
        return openfile(NULL, flags, growable, opts);
    } else {
        QDECREF(opts);
        return qemuio_command_usage(&open_cmd);
    }
}
コード例 #2
0
ファイル: qemu-io.c プロジェクト: jgottula/qemu-vfio
static int open_f(BlockDriverState *bs, int argc, char **argv)
{
    int flags = 0;
    int readonly = 0;
    int growable = 0;
    int c;

    while ((c = getopt(argc, argv, "snrg")) != EOF) {
        switch (c) {
        case 's':
            flags |= BDRV_O_SNAPSHOT;
            break;
        case 'n':
            flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB;
            break;
        case 'r':
            readonly = 1;
            break;
        case 'g':
            growable = 1;
            break;
        default:
            return qemuio_command_usage(&open_cmd);
        }
    }

    if (!readonly) {
        flags |= BDRV_O_RDWR;
    }

    if (optind != argc - 1) {
        return qemuio_command_usage(&open_cmd);
    }

    return openfile(argv[optind], flags, growable);
}