From 725aca9585956676687c4cb803e88f770b0df2b2 Mon Sep 17 00:00:00 2001 From: Alan Maguire Date: Fri, 29 May 2020 22:46:21 +0100 Subject: kunit: add support for named resources The kunit resources API allows for custom initialization and cleanup code (init/fini); here a new resource add function sets the "struct kunit_resource" "name" field, and calls the standard add function. Having a simple way to name resources is useful in cases such as multithreaded tests where a set of resources are shared among threads; a pointer to the "struct kunit *" test state then is all that is needed to retrieve and use named resources. Support is provided to add, find and destroy named resources; the latter two are simply wrappers that use a "match-by-name" callback. If an attempt to add a resource with a name that already exists is made kunit_add_named_resource() will return -EEXIST. Signed-off-by: Alan Maguire Reviewed-by: Brendan Higgins Signed-off-by: Shuah Khan --- lib/kunit/kunit-test.c | 37 +++++++++++++++++++++++++++++++++++++ lib/kunit/test.c | 24 ++++++++++++++++++++++++ 2 files changed, 61 insertions(+) (limited to 'lib') diff --git a/lib/kunit/kunit-test.c b/lib/kunit/kunit-test.c index 03f3ecaa1ef9..69f902440a0e 100644 --- a/lib/kunit/kunit-test.c +++ b/lib/kunit/kunit-test.c @@ -325,6 +325,42 @@ static void kunit_resource_test_static(struct kunit *test) KUNIT_EXPECT_TRUE(test, list_empty(&test->resources)); } +static void kunit_resource_test_named(struct kunit *test) +{ + struct kunit_resource res1, res2, *found = NULL; + struct kunit_test_resource_context ctx; + + KUNIT_EXPECT_EQ(test, + kunit_add_named_resource(test, NULL, NULL, &res1, + "resource_1", &ctx), + 0); + KUNIT_EXPECT_PTR_EQ(test, res1.data, (void *)&ctx); + + KUNIT_EXPECT_EQ(test, + kunit_add_named_resource(test, NULL, NULL, &res1, + "resource_1", &ctx), + -EEXIST); + + KUNIT_EXPECT_EQ(test, + kunit_add_named_resource(test, NULL, NULL, &res2, + "resource_2", &ctx), + 0); + + found = kunit_find_named_resource(test, "resource_1"); + + KUNIT_EXPECT_PTR_EQ(test, found, &res1); + + if (found) + kunit_put_resource(&res1); + + KUNIT_EXPECT_EQ(test, kunit_destroy_named_resource(test, "resource_2"), + 0); + + kunit_cleanup(test); + + KUNIT_EXPECT_TRUE(test, list_empty(&test->resources)); +} + static int kunit_resource_test_init(struct kunit *test) { struct kunit_test_resource_context *ctx = @@ -354,6 +390,7 @@ static struct kunit_case kunit_resource_test_cases[] = { KUNIT_CASE(kunit_resource_test_cleanup_resources), KUNIT_CASE(kunit_resource_test_proper_free_ordering), KUNIT_CASE(kunit_resource_test_static), + KUNIT_CASE(kunit_resource_test_named), {} }; diff --git a/lib/kunit/test.c b/lib/kunit/test.c index 569b7f9f17e4..c36037200310 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -441,6 +441,30 @@ int kunit_add_resource(struct kunit *test, } EXPORT_SYMBOL_GPL(kunit_add_resource); +int kunit_add_named_resource(struct kunit *test, + kunit_resource_init_t init, + kunit_resource_free_t free, + struct kunit_resource *res, + const char *name, + void *data) +{ + struct kunit_resource *existing; + + if (!name) + return -EINVAL; + + existing = kunit_find_named_resource(test, name); + if (existing) { + kunit_put_resource(existing); + return -EEXIST; + } + + res->name = name; + + return kunit_add_resource(test, init, free, res, data); +} +EXPORT_SYMBOL_GPL(kunit_add_named_resource); + struct kunit_resource *kunit_alloc_and_get_resource(struct kunit *test, kunit_resource_init_t init, kunit_resource_free_t free, -- cgit v1.2.3