| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #ifndef H_TASKPOOL_ |
| #define H_TASKPOOL_ |
| |
| #include "os/mynewt.h" |
| |
| /** |
| * @file taskpool.h |
| * @brief Allows you to create and remove generic tasks at runtime. |
| * |
| * This package creates a single global task pool. Each allocated task |
| * uses the same size stack. The task count and stack size settings are |
| * specified via syscfg. |
| */ |
| |
| /** |
| * @brief Allocates a new task from the global task pool. |
| * |
| * A task allocated with this function is allowed to terminate via return. |
| * That is, if its handler function runs to completion, the task complete and |
| * can be collected. |
| * |
| * @param task_handler The function to be executed by the new task. |
| * @param prio The priority to assign to the new task. |
| * @param out_task On success, the address ofthe newly allocated |
| * task gets written here. Pass NULL if you |
| * don't require this information. |
| * |
| * @return 0 on success; SYS_E[...] error code on failure. |
| */ |
| int taskpool_alloc(os_task_func_t task_handler, uint8_t prio, |
| struct os_task **out_task); |
| |
| /** |
| * @brief Allocates a new task and asserts success. |
| * |
| * See taskpool_alloc() for details. |
| * |
| * @param task_handler The function to be executed by the new task. |
| * @param prio The priority to assign to the new task. |
| * |
| * @return The newly allocateed task. |
| */ |
| struct os_task *taskpool_alloc_assert(os_task_func_t task_handler, |
| uint8_t prio); |
| |
| /** |
| * @brief Waits for all allocated tasks to complete. |
| * |
| * @param max_ticks The maximum duration to wait before the wait |
| * operation times out. Units are OS ticks. |
| * |
| * @return 0 on success; |
| * OS_TIMEOUT on timeout. |
| */ |
| int taskpool_wait(os_time_t max_ticks); |
| |
| /** |
| * @brief Waits for all allocated tasks to complete and asserts success. |
| * |
| * @param max_ticks The maximum duration to wait before the wait |
| * operation times out. Units are OS ticks. |
| */ |
| void taskpool_wait_assert(os_time_t max_ticks); |
| |
| #endif |