C++ (Cpp) lvm_lv_from_name示例

示例#1

文件： thin_percent.c 项目： nathanxu/gen-san-adapter

int main(int argc, char *argv[])
{
	lvm_t handle;
	vg_t vg;
	lv_t lv;
	struct lvm_property_value v;

	handle = lvm_init(NULL);
	assert(handle);

	vg = lvm_vg_open(handle, argv[1], "r", 0);
	assert(vg);

	lv = lvm_lv_from_name(vg, "pool");
	assert(lv);

	v = lvm_lv_get_property(lv, "data_percent");
	assert(v.is_valid);
	assert(v.value.integer == 25 * PERCENT_1);


	lv = lvm_lv_from_name(vg, "thin");
	assert(lv);

	v = lvm_lv_get_property(lv, "data_percent");
	assert(v.is_valid);
	assert(v.value.integer == 50 * PERCENT_1);


	lv = lvm_lv_from_name(vg, "snap");
	assert(lv);

	v = lvm_lv_get_property(lv, "data_percent");
	assert(v.is_valid);
	assert(v.value.integer == 75 * PERCENT_1);

	v = lvm_lv_get_property(lv, "snap_percent");
	assert(v.is_valid);
	assert(v.value.integer == PERCENT_INVALID);

	v = lvm_lv_get_property(lv, "origin");
	assert(v.is_valid);
	assert(strcmp(v.value.string, "thin") == 0);

	lvm_vg_close(vg);
	lvm_quit(handle);

	return 0;
}

示例#2

文件： percent.c 项目： cardamon/lvm2

int main(int argc, char *argv[])
{
	lvm_t handle;
	vg_t vg = NULL;
	lv_t lv;
	struct lvm_property_value v;
	struct lvm_property_value d;

	handle = lvm_init(NULL);
        assert(handle);

	vg = lvm_vg_open(handle, argv[1], "r", 0);
        assert(vg);

	lv = lvm_lv_from_name(vg, "snap");
        assert(lv);

        v = lvm_lv_get_property(lv, "snap_percent");
        assert(v.is_valid);
        assert(v.value.integer == PERCENT_0);

	lv = lvm_lv_from_name(vg, "mirr");
        assert(lv);

        v = lvm_lv_get_property(lv, "copy_percent");
        assert(v.is_valid);
        assert(v.value.integer == PERCENT_100);

        lv = lvm_lv_from_name(vg, "snap2");
        assert(lv);

        v = lvm_lv_get_property(lv, "snap_percent");
        assert(v.is_valid);
        assert(v.value.integer == 50 * PERCENT_1);

	d = lvm_lv_get_property(lv, "data_percent");
	assert(d.is_valid);
	assert(d.value.integer == v.value.integer);

        lvm_vg_close(vg);

	lvm_quit(handle);
        return 0;
}

示例#3

文件： lvtest.c 项目： Distrotech/LVM2

int main(int argc, char *argv[])
{
	lvm_t handle;
	vg_t vg;
	lv_t lv;
	int r = -1;

	if (!(handle = lvm_init(NULL)))
                return -1;

	if (!(vg = lvm_vg_open(handle, argv[1], "w", 0)))
		err("VG open %s failed.\n", argv[1]);

	if (!(lv = lvm_lv_from_name(vg, "test")))
                err("LV test not found.\n");

	if (lvm_lv_deactivate(lv))
                err("LV test deactivation failed.\n");

	if (lvm_lv_activate(lv))
                err("LV test activation failed.\n");

	if (lvm_lv_activate(lv))
                err("LV test repeated activation failed.\n");

	if (lvm_lv_rename(lv, "test1"))
		err("LV test rename to test1 failed.\n");

	if (lvm_lv_rename(lv, "test2"))
		err("LV test1 rename to test2 failed.\n");

	if (lvm_lv_rename(lv, "test"))
		err("LV test2 rename to test failed.\n");

	if (lvm_vg_close(vg))
		err("VG close failed.\n");

        r = 0;
bad:
	lvm_quit(handle);
	return r;
}