C++ command_usage函数代码示例

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本文整理汇总了C++中command_usage函数的典型用法代码示例。如果您正苦于以下问题：C++ command_usage函数的具体用法？C++ command_usage怎么用？C++ command_usage使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了command_usage函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: aio_write_f

static int aio_write_f(int argc, char **argv)
{
    int nr_iov, c;
    int pattern = 0xcd;
    struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);

    while ((c = getopt(argc, argv, "CqP:")) != EOF) {
        switch (c) {
        case 'C':
            ctx->Cflag = 1;
            break;
        case 'q':
            ctx->qflag = 1;
            break;
        case 'P':
            pattern = parse_pattern(optarg);
            if (pattern < 0) {
                g_free(ctx);
                return 0;
            }
            break;
        default:
            g_free(ctx);
            return command_usage(&aio_write_cmd);
        }
    }

    if (optind > argc - 2) {
        g_free(ctx);
        return command_usage(&aio_write_cmd);
    }

    ctx->offset = cvtnum(argv[optind]);
    if (ctx->offset < 0) {
        printf("non-numeric length argument -- %s\n", argv[optind]);
        g_free(ctx);
        return 0;
    }
    optind++;

    if (ctx->offset & 0x1ff) {
        printf("offset %" PRId64 " is not sector aligned\n",
               ctx->offset);
        g_free(ctx);
        return 0;
    }

    nr_iov = argc - optind;
    ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern);
    if (ctx->buf == NULL) {
        g_free(ctx);
        return 0;
    }

    gettimeofday(&ctx->t1, NULL);
    bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
                    ctx->qiov.size >> 9, aio_write_done, ctx);
    return 0;
}

开发者ID:AjayMashi，项目名称:x-tier，代码行数:59，代码来源:qemu-io.c

示例2: msync_f

int
msync_f(
	int		argc,
	char		**argv)
{
	off64_t		offset;
	ssize_t		length;
	void		*start;
	int		c, flags = 0;
	size_t		blocksize, sectsize;

	while ((c = getopt(argc, argv, "ais")) != EOF) {
		switch (c) {
		case 'a':
			flags |= MS_ASYNC;
			break;
		case 'i':
			flags |= MS_INVALIDATE;
			break;
		case 's':
			flags |= MS_SYNC;
			break;
		default:
			return command_usage(&msync_cmd);
		}
	}

	if (optind == argc) {
		offset = mapping->offset;
		length = mapping->length;
	} else if (optind == argc - 2) {
		init_cvtnum(&blocksize, &sectsize);
		offset = cvtnum(blocksize, sectsize, argv[optind]);
		if (offset < 0) {
			printf(_("non-numeric offset argument -- %s\n"),
				argv[optind]);
			return 0;
		}
		optind++;
		length = cvtnum(blocksize, sectsize, argv[optind]);
		if (length < 0) {
			printf(_("non-numeric length argument -- %s\n"),
				argv[optind]);
			return 0;
		}
	} else {
		return command_usage(&msync_cmd);
	}

	start = check_mapping_range(mapping, offset, length, 1);
	if (!start)
		return 0;

	if (msync(start, length, flags) < 0)
		perror("msync");

	return 0;
}

开发者ID:tytso，项目名称:xfsprogs，代码行数:58，代码来源:mmap.c

示例3: load_all

static int load_all(vici_conn_t *conn)
{
	bool clear = FALSE, noprompt = FALSE;
	command_format_options_t format = COMMAND_FORMAT_NONE;
	settings_t *cfg;
	int ret = 0;
	char *arg;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'c':
				clear = TRUE;
				continue;
			case 'n':
				noprompt = TRUE;
				continue;
			case 'P':
				format |= COMMAND_FORMAT_PRETTY;
				/* fall through to raw */
			case 'r':
				format |= COMMAND_FORMAT_RAW;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --load-all option");
		}
		break;
	}

	cfg = settings_create(SWANCTL_CONF);
	if (!cfg)
	{
		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
		return EINVAL;
	}

	if (ret == 0)
	{
		ret = load_creds_cfg(conn, format, cfg, clear, noprompt);
	}
	if (ret == 0)
	{
		ret = load_pools_cfg(conn, format, cfg);
	}
	if (ret == 0)
	{
		ret = load_conns_cfg(conn, format, cfg);
	}

	cfg->destroy(cfg);

	return ret;
}

开发者ID:SamuelStrong，项目名称:strongswan，代码行数:58，代码来源:load_all.c

示例4: discard_f

static int discard_f(int argc, char **argv)
{
    struct timeval t1, t2;
    int Cflag = 0, qflag = 0;
    int c, ret;
    int64_t offset;
    int count;

    while ((c = getopt(argc, argv, "Cq")) != EOF) {
        switch (c) {
        case 'C':
            Cflag = 1;
            break;
        case 'q':
            qflag = 1;
            break;
        default:
            return command_usage(&discard_cmd);
        }
    }

    if (optind != argc - 2) {
        return command_usage(&discard_cmd);
    }

    offset = cvtnum(argv[optind]);
    if (offset < 0) {
        printf("non-numeric length argument -- %s\n", argv[optind]);
        return 0;
    }

    optind++;
    count = cvtnum(argv[optind]);
    if (count < 0) {
        printf("non-numeric length argument -- %s\n", argv[optind]);
        return 0;
    }

    gettimeofday(&t1, NULL);
    ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS,
                       count >> BDRV_SECTOR_BITS);
    gettimeofday(&t2, NULL);

    if (ret < 0) {
        printf("discard failed: %s\n", strerror(-ret));
        goto out;
    }

    /* Finally, report back -- -C gives a parsable format */
    if (!qflag) {
        t2 = tsub(t2, t1);
        print_report("discard", &t2, offset, count, count, 1, Cflag);
    }

out:
    return 0;
}

开发者ID:AjayMashi，项目名称:x-tier，代码行数:57，代码来源:qemu-io.c

示例5: state_f

static int
state_f(
	int		argc,
	char		**argv)
{
	FILE		*fp = NULL;
	char		*fname = NULL;
	int		c, flags = 0, type = 0;

	while ((c = getopt(argc, argv, "af:gpuv")) != EOF) {
		switch (c) {
		case 'a':
			flags |= ALL_MOUNTS_FLAG;
			break;
		case 'f':
			fname = optarg;
			break;
		case 'g':
			type |= XFS_GROUP_QUOTA;
			break;
		case 'p':
			type |= XFS_PROJ_QUOTA;
			break;
		case 'u':
			type |= XFS_USER_QUOTA;
			break;
		case 'v':
			flags |= VERBOSE_FLAG;
			break;
		default:
			return command_usage(&state_cmd);
		}
	}

	if (argc != optind)
		return command_usage(&state_cmd);

	if ((fp = fopen_write_secure(fname)) == NULL)
		return 0;

	if (!type)
		type = XFS_USER_QUOTA | XFS_GROUP_QUOTA | XFS_PROJ_QUOTA;

	if (flags & ALL_MOUNTS_FLAG)
		state_quotafile(fp, type, NULL, flags);
	else if (fs_path && fs_path->fs_flags & FS_MOUNT_POINT)
		state_quotafile(fp, type, fs_path->fs_dir, flags);

	if (fname)
		fclose(fp);
	return 0;
}

开发者ID:djwong，项目名称:xfsprogs，代码行数:52，代码来源:state.c

示例6: dump_f

static int
dump_f(
	int		argc,
	char		**argv)
{
	FILE		*fp;
	char		*fname = NULL;
	uint		lower = 0, upper = 0;
	int		c, type = XFS_USER_QUOTA;

	while ((c = getopt(argc, argv, "f:gpuL:U:")) != EOF) {
		switch(c) {
		case 'f':
			fname = optarg;
			break;
		case 'g':
			type = XFS_GROUP_QUOTA;
			break;
		case 'p':
			type = XFS_PROJ_QUOTA;
			break;
		case 'u':
			type = XFS_USER_QUOTA;
			break;
		case 'L':
			lower = (uint)atoi(optarg);
			break;
		case 'U':
			upper = (uint)atoi(optarg);
			break;
		default:
			return command_usage(&dump_cmd);
		}
	}

	if (argc != optind)
		return command_usage(&dump_cmd);

	if ((fp = fopen_write_secure(fname)) == NULL)
		return 0;

	dump_limits_any_type(fp, type, fs_path->fs_dir, lower, upper);

	if (fname)
		fclose(fp);

	return 0;
}

开发者ID:ystk，项目名称:debian-xfsprogs，代码行数:48，代码来源:report.c

示例7: command_report_error

void	command_report_error(buffer_t* out, const command_t* cmd, int error)
{
  int do_eol = 1;

  if (NULL == out || NULL == cmd)
    return;
  switch (error)
  {
  case ENONE:
    buf_append(out, "OK");
    break;
  case EIGNORE:
    do_eol = 0;
    break;
  case ENOCMD:
    buf_appendf(out, "ERR: No such command");
    break;
  case ENOSESSION:
    buf_appendf(out, "ERR: Session not found");
    break;
  case EUSAGE:
    command_usage(out, cmd);
    do_eol = 0;
    break;
  default:
    buf_appendf(out, "ERR: %s", strerror(error));
    break;
  }
  if (do_eol)
    buf_append_eol(out);
}

开发者ID:piotrm0，项目名称:first，代码行数:31，代码来源:command.c

示例8: S_set_verbose

static int
S_set_verbose(int argc, char * argv[])
{
    uint32_t		log_flags = 0;
    int 		result;

    if (strcasecmp(argv[0], "on") == 0) {
	log_flags = -1;
    }
    else if (strcasecmp(argv[0], "off") == 0) {
	log_flags = 0;
    }
    else {
	command_usage();
    }
    if (EAPOLControlPrefsSetLogFlags(log_flags) == FALSE) {
	fprintf(stderr, "Failed to set verbose %s\n",
		log_flags != 0 ? "on" : "off");
	result = 1;
    }
    else {
	result = 0;
    }
    return (result);
}

开发者ID:gfleury，项目名称:eap8021x-debug，代码行数:25，代码来源:client.c

示例9: list_pools

static int list_pools(vici_conn_t *conn)
{
	vici_req_t *req;
	vici_res_t *res;
	bool raw = FALSE;
	char *arg;
	int ret = 0;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'r':
				raw = TRUE;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --list-pools option");
		}
		break;
	}

	req = vici_begin("get-pools");
	res = vici_submit(req, conn);
	if (!res)
	{
		fprintf(stderr, "get-pools request failed: %s\n", strerror(errno));
		return errno;
	}
	if (raw)
	{
		vici_dump(res, "get-pools reply", stdout);
	}
	else
	{
		ret = vici_parse_cb(res, list_pool, NULL, NULL, NULL);
	}
	vici_free_res(res);
	return ret;
}

开发者ID:BrendanLaneLarson，项目名称:strongswan，代码行数:43，代码来源:list_pools.c

示例10: load_authorities

static int load_authorities(vici_conn_t *conn)
{
	command_format_options_t format = COMMAND_FORMAT_NONE;
	settings_t *cfg;
	char *arg, *file = NULL;
	int ret;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'P':
				format |= COMMAND_FORMAT_PRETTY;
				/* fall through to raw */
			case 'r':
				format |= COMMAND_FORMAT_RAW;
				continue;
			case 'f':
				file = arg;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --load-authorities option");
		}
		break;
	}

	cfg = load_swanctl_conf(file);
	if (!cfg)
	{
		return EINVAL;
	}

	ret = load_authorities_cfg(conn, format, cfg);

	cfg->destroy(cfg);

	return ret;
}

开发者ID:strongswan，项目名称:strongswan，代码行数:42，代码来源:load_authorities.c

示例11: off_f

static int
off_f(
	int		argc,
	char		**argv)
{
	int		c, flags = 0, qflags = 0, type = 0;

	while ((c = getopt(argc, argv, "gpuv")) != EOF) {
		switch (c) {
		case 'g':
			type |= XFS_GROUP_QUOTA;
			qflags |= XFS_QUOTA_GDQ_ACCT | XFS_QUOTA_GDQ_ENFD;
			break;
		case 'p':
			type |= XFS_PROJ_QUOTA;
			qflags |= XFS_QUOTA_PDQ_ACCT | XFS_QUOTA_PDQ_ENFD;
			break;
		case 'u':
			type |= XFS_USER_QUOTA;
			qflags |= XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_UDQ_ENFD;
			break;
		case 'v':
			flags |= VERBOSE_FLAG;
			break;
		default:
			return command_usage(&off_cmd);
		}
	}

	if (argc != optind)
		return command_usage(&off_cmd);

	if (!type) {
		type |= XFS_USER_QUOTA;
		qflags |= XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_UDQ_ENFD;
	}

	if (fs_path->fs_flags & FS_MOUNT_POINT)
		quotaoff(fs_path->fs_dir, type, qflags, flags);
	return 0;
}

开发者ID:djwong，项目名称:xfsprogs，代码行数:41，代码来源:state.c

示例12: open_f

static int
open_f(int argc, char **argv)
{
	int flags = 0;
	int readonly = 0;
	int growable = 0;
	int c;

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

	if (readonly)
		flags |= BDRV_O_RDONLY;
	else
		flags |= BDRV_O_RDWR;

	if (optind != argc - 1)
		return command_usage(&open_cmd);

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

开发者ID:bulotus，项目名称:bulotus-qemu-at91sam9263ek，代码行数:40，代码来源:qemu-io.c

示例13: load_authorities

static int load_authorities(vici_conn_t *conn)
{
	command_format_options_t format = COMMAND_FORMAT_NONE;
	settings_t *cfg;
	char *arg;
	int ret;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'P':
				format |= COMMAND_FORMAT_PRETTY;
				/* fall through to raw */
			case 'r':
				format |= COMMAND_FORMAT_RAW;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --load-authorities option");
		}
		break;
	}

	cfg = settings_create(SWANCTL_CONF);
	if (!cfg)
	{
		fprintf(stderr, "parsing '%s' failed\n", SWANCTL_CONF);
		return EINVAL;
	}

	ret = load_authorities_cfg(conn, format, cfg);

	cfg->destroy(cfg);

	return ret;
}

开发者ID:FancyFon，项目名称:strongswan，代码行数:40，代码来源:load_authorities.c

示例14: chproj_f

static int
chproj_f(
	int		argc,
	char		**argv)
{
	int		c;

	recurse_all = recurse_dir = 0;
	while ((c = getopt(argc, argv, "DR")) != EOF) {
		switch (c) {
		case 'D':
			recurse_all = 0;
			recurse_dir = 1;
			break;
		case 'R':
			recurse_all = 1;
			recurse_dir = 0;
			break;
		default:
			return command_usage(&chproj_cmd);
		}
	}

	if (argc != optind + 1)
		return command_usage(&chproj_cmd);

	prid = prid_from_string(argv[optind]);
	if (prid == -1) {
		printf(_("invalid project ID -- %s\n"), argv[optind]);
		return 0;
	}

	if (recurse_all || recurse_dir)
		nftw(file->name, chproj_callback,
			100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
	else if (setprojid(file->name, file->fd, prid) < 0)
		perror("setprojid");
	return 0;
}

开发者ID:chandanr，项目名称:xfsprogs-dev，代码行数:39，代码来源:open.c

示例15: parent_f

int
parent_f(int argc, char **argv)
{
	int c;
	int listpath_flag = 0;
	int check_flag = 0;
	fs_path_t *fs;
	static int tab_init;

	if (!tab_init) {
		tab_init = 1;
		fs_table_initialise(0, NULL, 0, NULL);
	}
	fs = fs_table_lookup(file->name, FS_MOUNT_POINT);
	if (!fs) {
		fprintf(stderr, _("file argument, \"%s\", is not in a mounted XFS filesystem\n"),
			file->name);
		return 1;
	}
	mntpt = fs->fs_dir;

	verbose_flag = 0;

	while ((c = getopt(argc, argv, "cpv")) != EOF) {
		switch (c) {
		case 'c':
			check_flag = 1;
			break;
		case 'p':
			listpath_flag = 1;
			break;
		case 'v':
			verbose_flag++;
			break;
		default:
			return command_usage(&parent_cmd);
		}
	}

	if (!check_flag && !listpath_flag) /* default case */
		exitcode = parent_list(listpath_flag);
	else {
		if (listpath_flag)
			exitcode = parent_list(listpath_flag);
		if (check_flag)
			exitcode = parent_check();
	}

	return 0;
}

开发者ID:Claruarius，项目名称:stblinux-2.6.37，代码行数:50，代码来源:parent.c

示例16: remove_f

static int
remove_f(
	int		argc,
	char		**argv)
{
	int		c, flags = 0, type = 0;

	while ((c = getopt(argc, argv, "gpuv")) != EOF) {
		switch (c) {
		case 'g':
			type |= XFS_GROUP_QUOTA;
			break;
		case 'p':
			type |= XFS_PROJ_QUOTA;
			break;
		case 'u':
			type |= XFS_USER_QUOTA;
			break;
		case 'v':
			flags |= VERBOSE_FLAG;
			break;
		default:
			return command_usage(&remove_cmd);
		}
	}

	if (argc != optind)
		return command_usage(&remove_cmd);

	if (!type) {
		type |= XFS_USER_QUOTA;
	}

	if (fs_path->fs_flags & FS_MOUNT_POINT)
		remove_extents(fs_path->fs_dir, type, flags);
	return 0;
}

开发者ID:djwong，项目名称:xfsprogs，代码行数:37，代码来源:state.c

示例17: logcmd

static int logcmd(vici_conn_t *conn)
{
	command_format_options_t format = COMMAND_FORMAT_NONE;
	char *arg;

	while (TRUE)
	{
		switch (command_getopt(&arg))
		{
			case 'h':
				return command_usage(NULL);
			case 'P':
				format |= COMMAND_FORMAT_PRETTY;
				/* fall through to raw */
			case 'r':
				format |= COMMAND_FORMAT_RAW;
				continue;
			case EOF:
				break;
			default:
				return command_usage("invalid --log option");
		}
		break;
	}

	if (vici_register(conn, "log", log_cb, &format) != 0)
	{
		fprintf(stderr, "registering for log failed: %s\n", strerror(errno));
		return errno;
	}

	wait_sigint();

	fprintf(stderr, "disconnecting...\n");

	return 0;
}

开发者ID:21superman，项目名称:strongswan，代码行数:37，代码来源:log.c

示例18: lsproj_f

static int
lsproj_f(
	int		argc,
	char		**argv)
{
	prid_t		projid;
	int		c;

	recurse_all = recurse_dir = 0;
	while ((c = getopt(argc, argv, "DR")) != EOF) {
		switch (c) {
		case 'D':
			recurse_all = 0;
			recurse_dir = 1;
			break;
		case 'R':
			recurse_all = 1;
			recurse_dir = 0;
			break;
		default:
			return command_usage(&lsproj_cmd);
		}
	}

	if (argc != optind)
		return command_usage(&lsproj_cmd);

	if (recurse_all || recurse_dir)
		nftw(file->name, lsproj_callback,
			100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
	else if (getprojid(file->name, file->fd, &projid) < 0)
		perror("getprojid");
	else
		printf(_("projid = %u\n"), (unsigned int)projid);
	return 0;
}

开发者ID:chandanr，项目名称:xfsprogs-dev，代码行数:36，代码来源:open.c

示例19: lsattr_f

static int
lsattr_f(
	int		argc,
	char		**argv)
{
	struct fsxattr	fsx;
	char		*name = file->name;
	int		c, aflag = 0, vflag = 0;

	recurse_all = recurse_dir = 0;
	while ((c = getopt(argc, argv, "DRav")) != EOF) {
		switch (c) {
		case 'D':
			recurse_all = 0;
			recurse_dir = 1;
			break;
		case 'R':
			recurse_all = 1;
			recurse_dir = 0;
			break;
		case 'a':
			aflag = 1;
			vflag = 0;
			break;
		case 'v':
			aflag = 0;
			vflag = 1;
			break;
		default:
			return command_usage(&lsattr_cmd);
		}
	}

	if (recurse_all || recurse_dir) {
		nftw(name, lsattr_callback,
			100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
	} else if ((xfsctl(name, file->fd, XFS_IOC_FSGETXATTR, &fsx)) < 0) {
		fprintf(stderr, _("%s: cannot get flags on %s: %s\n"),
			progname, name, strerror(errno));
	} else {
		printxattr(fsx.fsx_xflags, vflag, !aflag, name, vflag, !aflag);
		if (aflag) {
			fputs("/", stdout);
			printxattr(-1, 0, 1, name, 0, 1);
		}
	}
	return 0;
}

开发者ID:brkt，项目名称:fuse-xfs，代码行数:48，代码来源:attr.c

示例20: extsize_f

static int
extsize_f(
	int		argc,
	char		**argv)
{
	size_t			blocksize, sectsize;
	int			c;

	recurse_all = recurse_dir = 0;
	init_cvtnum(&blocksize, &sectsize);
	while ((c = getopt(argc, argv, "DR")) != EOF) {
		switch (c) {
		case 'D':
			recurse_all = 0;
			recurse_dir = 1;
			break;
		case 'R':
			recurse_all = 1;
			recurse_dir = 0;
			break;
		default:
			return command_usage(&extsize_cmd);
		}
	}

	if (optind < argc) {
		extsize = (long)cvtnum(blocksize, sectsize, argv[optind]);
		if (extsize < 0) {
			printf(_("non-numeric extsize argument -- %s\n"),
				argv[optind]);
			return 0;
		}
	} else {
		extsize = -1;
	}

	if (recurse_all || recurse_dir)
		nftw(file->name, (extsize >= 0) ?
			set_extsize_callback : get_extsize_callback,
			100, FTW_PHYS | FTW_MOUNT | FTW_DEPTH);
	else if (extsize >= 0)
		set_extsize(file->name, file->fd, extsize);
	else
		get_extsize(file->name, file->fd);
	return 0;
}

开发者ID:chandanr，项目名称:xfsprogs-dev，代码行数:46，代码来源:open.c

注：本文中的command_usage函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。