C++ (Cpp) kmod_module_get_holders示例

示例#1

文件： rmmod.c 项目： StarchLinux/kmod

static int check_module_inuse(struct kmod_module *mod) {
	struct kmod_list *holders;

	if (kmod_module_get_initstate(mod) == -ENOENT) {
		ERR("Module %s is not currently loaded\n",
				kmod_module_get_name(mod));
		return -ENOENT;
	}

	holders = kmod_module_get_holders(mod);
	if (holders != NULL) {
		struct kmod_list *itr;

		ERR("Module %s is in use by:", kmod_module_get_name(mod));

		kmod_list_foreach(itr, holders) {
			struct kmod_module *hm = kmod_module_get_module(itr);
			fprintf(stderr, " %s", kmod_module_get_name(hm));
			kmod_module_unref(hm);
		}
		fputc('\n', stderr);

		kmod_module_unref_list(holders);
		return -EBUSY;
	}

	if (kmod_module_get_refcnt(mod) != 0) {
		ERR("Module %s is in use\n", kmod_module_get_name(mod));
		return -EBUSY;
	}

	return 0;
}

示例#2

文件： lsmod.c 项目： SebKuzminsky/kmod

static int do_lsmod(int argc, char *argv[])
{
	struct kmod_ctx *ctx;
	const char *null_config = NULL;
	struct kmod_list *list, *itr;
	int err;

	if (argc != 1) {
		fprintf(stderr, "Usage: %s\n", argv[0]);
		return EXIT_FAILURE;
	}

	ctx = kmod_new(NULL, &null_config);
	if (ctx == NULL) {
		fputs("Error: kmod_new() failed!\n", stderr);
		return EXIT_FAILURE;
	}

	err = kmod_module_new_from_loaded(ctx, &list);
	if (err < 0) {
		fprintf(stderr, "Error: could not get list of modules: %s\n",
			strerror(-err));
		kmod_unref(ctx);
		return EXIT_FAILURE;
	}

	puts("Module                  Size  Used by");

	kmod_list_foreach(itr, list) {
		struct kmod_module *mod = kmod_module_get_module(itr);
		const char *name = kmod_module_get_name(mod);
		int use_count = kmod_module_get_refcnt(mod);
		long size = kmod_module_get_size(mod);
		struct kmod_list *holders, *hitr;
		int first = 1;

		printf("%-19s %8ld  %d ", name, size, use_count);
		holders = kmod_module_get_holders(mod);
		kmod_list_foreach(hitr, holders) {
			struct kmod_module *hm = kmod_module_get_module(hitr);

			if (!first)
				putchar(',');
			else
				first = 0;

			fputs(kmod_module_get_name(hm), stdout);
			kmod_module_unref(hm);
		}
		putchar('\n');
		kmod_module_unref_list(holders);
		kmod_module_unref(mod);
	}
	kmod_module_unref_list(list);
	kmod_unref(ctx);

	return EXIT_SUCCESS;
}

示例#3

文件： test-loaded.c 项目： Drakey83/steamlink-sdk

static int loaded_1(const struct test *t)
{
	struct kmod_ctx *ctx;
	const char *null_config = NULL;
	struct kmod_list *list, *itr;
	int err;

	ctx = kmod_new(NULL, &null_config);
	if (ctx == NULL)
		exit(EXIT_FAILURE);

	err = kmod_module_new_from_loaded(ctx, &list);
	if (err < 0) {
		fprintf(stderr, "%s\n", strerror(-err));
		kmod_unref(ctx);
		exit(EXIT_FAILURE);
	}

	printf("Module                  Size  Used by\n");

	kmod_list_foreach(itr, list) {
		struct kmod_module *mod = kmod_module_get_module(itr);
		const char *name = kmod_module_get_name(mod);
		int use_count = kmod_module_get_refcnt(mod);
		long size = kmod_module_get_size(mod);
		struct kmod_list *holders, *hitr;
		int first = 1;

		printf("%-19s %8ld  %d ", name, size, use_count);
		holders = kmod_module_get_holders(mod);
		kmod_list_foreach(hitr, holders) {
			struct kmod_module *hm = kmod_module_get_module(hitr);

			if (!first)
				putchar(',');
			else
				first = 0;

			fputs(kmod_module_get_name(hm), stdout);
			kmod_module_unref(hm);
		}
		putchar('\n');
		kmod_module_unref_list(holders);
		kmod_module_unref(mod);
	}
	kmod_module_unref_list(list);

	kmod_unref(ctx);

	return EXIT_SUCCESS;
}

示例#4

文件： remove.c 项目： lucasdemarchi/kmod

static int check_module_inuse(struct kmod_module *mod) {
	struct kmod_list *holders;
	int state, ret;

	state = kmod_module_get_initstate(mod);

	if (state == KMOD_MODULE_BUILTIN) {
		ERR("Module %s is builtin.\n", kmod_module_get_name(mod));
		return -ENOENT;
	} else if (state < 0) {
		ERR("Module %s is not currently loaded\n",
				kmod_module_get_name(mod));
		return -ENOENT;
	}

	holders = kmod_module_get_holders(mod);
	if (holders != NULL) {
		struct kmod_list *itr;

		ERR("Module %s is in use by:", kmod_module_get_name(mod));

		kmod_list_foreach(itr, holders) {
			struct kmod_module *hm = kmod_module_get_module(itr);
			fprintf(stderr, " %s", kmod_module_get_name(hm));
			kmod_module_unref(hm);
		}
		fputc('\n', stderr);

		kmod_module_unref_list(holders);
		return -EBUSY;
	}

	ret = kmod_module_get_refcnt(mod);
	if (ret > 0) {
		ERR("Module %s is in use\n", kmod_module_get_name(mod));
		return -EBUSY;
	} else if (ret == -ENOENT) {
		ERR("Module unloading is not supported\n");
	}

	return ret;
}