tools/testing/radix-tree/regression4.c

Source file repositories/reference/linux-study-clean/tools/testing/radix-tree/regression4.c

File Facts

System
Linux kernel
Corpus path
tools/testing/radix-tree/regression4.c
Extension
.c
Size
1521 bytes
Lines
80
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

if (entry != &obj0) {
			printf("iteration %d bad entry = %p\n", i, entry);
			abort();
		}
	}

	rcu_unregister_thread();

	return NULL;
}

static void *writer_fn(void *arg)
{
	int i;

	rcu_register_thread();
	pthread_barrier_wait(&worker_barrier);

	for (i = 0; i < 1000000; i++) {
		radix_tree_insert(&mt_tree, 1, &obj1);
		radix_tree_delete(&mt_tree, 1);
	}

	rcu_unregister_thread();

	return NULL;
}

void regression4_test(void)
{
	pthread_t reader, writer;

	printv(1, "regression test 4 starting\n");

	radix_tree_insert(&mt_tree, 0, &obj0);
	pthread_barrier_init(&worker_barrier, NULL, 2);

	if (pthread_create(&reader, NULL, reader_fn, NULL) ||
	    pthread_create(&writer, NULL, writer_fn, NULL)) {
		perror("pthread_create");
		exit(1);
	}

	if (pthread_join(reader, NULL) || pthread_join(writer, NULL)) {
		perror("pthread_join");
		exit(1);
	}

	printv(1, "regression test 4 passed\n");
}

Annotation

Implementation Notes