bool create_group()

in src/kernel_aio.cc [135:157]

• 19 lines of code
• 3 McCabe index (conditional complexity)

			bool create_group(int group_id, int n_concurrent) {

				groups_mutex.lock();
				if(groups.count(group_id)) {
					d_printf("Group already exists\n");
					return false;
				}

				groups[group_id] = std::make_shared<Group>();

				int err = io_queue_init(n_concurrent, &(groups[group_id]->ctx));
				if (err) {
					errno = -err;
#ifdef ENABLE_DEBUG
					perror("io_setup failed");
#endif
					return false;
				}
				assert(groups[group_id]->ctx);

				groups_mutex.unlock();
				return true;
			}