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Remove IotTaskPool_CreateRecyclableSystemJob() and IotTaskPool_ScheduleSystemJob() again, which were intended to be alternative APIs that only access the system task pool, and instead update IotTaskPool_CreateRecyclableJob() and IotTaskPool_ScheduleJob() to allow the parameter used to pass in the task pool handle to be NULL if the system task pool is the only one available.

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Update the task pool demo app to include a lot more functionality.
This commit is contained in:
Richard Barry 2019-07-08 15:48:21 +00:00
parent 4d6570b009
commit e60f71855a
4 changed files with 503 additions and 195 deletions
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121
FreeRTOS-Plus/Source/FreeRTOS-Plus-IoT-SDK/c_sdk/standard/common/include/iot_taskpool.h
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@ -53,11 +53,9 @@
* - @functionname{taskpool_function_setmaxthreads}
* - @functionname{taskpool_function_createjob}
* - @functionname{taskpool_function_createrecyclablejob}
* - @functionname{taskpool_function_createrecyclablesystemjob}
* - @functionname{taskpool_function_destroyrecyclablejob}
* - @functionname{taskpool_function_recyclejob}
* - @functionname{taskpool_function_schedule}
* - @functionname{taskpool_function_schedulesystemjob}
* - @functionname{taskpool_function_scheduledeferred}
* - @functionname{taskpool_function_getstatus}
* - @functionname{taskpool_function_trycancel}
@ -73,11 +71,9 @@
* @functionpage{IotTaskPool_SetMaxThreads,taskpool,setmaxthreads}
* @functionpage{IotTaskPool_CreateJob,taskpool,createjob}
* @functionpage{IotTaskPool_CreateRecyclableJob,taskpool,createrecyclablejob}
* @functionpage{IotTaskPool_CreateRecyclableSystemJob,taskpool,createrecyclablesystemjob}
* @functionpage{IotTaskPool_DestroyRecyclableJob,taskpool,destroyrecyclablejob}
* @functionpage{IotTaskPool_RecycleJob,taskpool,recyclejob}
* @functionpage{IotTaskPool_Schedule,taskpool,schedule}
* @functionpage{IotTaskPool_ScheduleSystemJob,taskpool,schedule}
* @functionpage{IotTaskPool_ScheduleDeferred,taskpool,scheduledeferred}
* @functionpage{IotTaskPool_GetStatus,taskpool,getstatus}
* @functionpage{IotTaskPool_TryCancel,taskpool,trycancel}
@ -164,7 +160,7 @@ IotTaskPoolError_t IotTaskPool_Create( const IotTaskPoolInfo_t * const pInfo,
* This function should be called to destroy one instance of a task pool previously created with a call
* to @ref IotTaskPool_Create or @ref IotTaskPool_CreateSystemTaskPool.
* Calling this fuction release all underlying resources. After calling this function, any job scheduled but not yet executed
* will be cancelled and destroyed.
* will be canceled and destroyed.
* The `taskPool` instance will no longer be valid after this function returns.
*
* @param[in] taskPool A handle to the task pool, e.g. as returned by a call to @ref IotTaskPool_Create or
@ -247,7 +243,7 @@ IotTaskPoolError_t IotTaskPool_CreateJob( IotTaskPoolRoutine_t userCallback,
* - #IOT_TASKPOOL_NO_MEMORY
* - #IOT_TASKPOOL_SHUTDOWN_IN_PROGRESS
*
* @note This function will not allocate memory.
* @note This function will not allocate memory. //_RB_ Incorrect comment.
*
* @warning A recyclable job should be recycled with a call to @ref IotTaskPool_RecycleJob rather than destroyed.
*
@ -259,36 +255,6 @@ IotTaskPoolError_t IotTaskPool_CreateRecyclableJob( IotTaskPool_t taskPool,
IotTaskPoolJob_t * const pJob );
/* @[declare_taskpool_createrecyclablejob] */
/**
* brief Creates a job for the system task pool by allocating the job dynamically.
* The system task pool is the task pool created by @ref IotTaskPool_CreateSystemTaskPool.
*
* A recyclable job does not need to be allocated twice, but it can rather be reused through
* subsequent calls to @ref IotTaskPool_CreateRecyclableJob.
*
* @param[in] userCallback A user-specified callback for the job.
* @param[in] pUserContext A user-specified context for the callback.
* @param[out] pJob A pointer to an instance of @ref IotTaskPoolJob_t that will be initialized when this
* function returns successfully. This handle can be used to inspect the job status with
* @ref IotTaskPool_GetStatus or cancel the job with @ref IotTaskPool_TryCancel, etc....
*
* @return One of the following:
* - #IOT_TASKPOOL_SUCCESS
* - #IOT_TASKPOOL_BAD_PARAMETER
* - #IOT_TASKPOOL_NO_MEMORY
* - #IOT_TASKPOOL_SHUTDOWN_IN_PROGRESS
*
* @note This function will not allocate memory.
*
* @warning A recyclable job should be recycled with a call to @ref IotTaskPool_RecycleJob rather than destroyed.
*
*/
/* @[declare_taskpool_createrecyclablesystemjob] */
IotTaskPoolError_t IotTaskPool_CreateRecyclableSystemJob( IotTaskPoolRoutine_t userCallback,
void * pUserContext,
IotTaskPoolJob_t * const pJob );
/* @[declare_taskpool_createrecyclablesystemjob] */
/**
* @brief This function un-initializes a job.
*
@ -445,88 +411,7 @@ IotTaskPoolError_t IotTaskPool_RecycleJob( IotTaskPool_t taskPool,
IotTaskPoolError_t IotTaskPool_Schedule( IotTaskPool_t taskPool,
IotTaskPoolJob_t job,
uint32_t flags );
/**
* @brief This function schedules a job created with @ref IotTaskPool_CreateJob or @ref IotTaskPool_CreateRecyclableJob @ref IotTaskPool_CreateRecyclableSystemJob
* against the system task pool. The system task pool is the task pool created by @ref IotTaskPool_CreateSystemTaskPool.
*
* See @ref taskpool_design for a description of the jobs lifetime and interaction with the threads used in the task pool
* library.
*
* @param[in] job A job to schedule for execution. This must be first initialized with a call to @ref IotTaskPool_CreateJob.
* @param[in] flags Flags to be passed by the user, e.g. to identify the job as high priority by specifying #IOT_TASKPOOL_JOB_HIGH_PRIORITY.
*
* @return One of the following:
* - #IOT_TASKPOOL_SUCCESS
* - #IOT_TASKPOOL_BAD_PARAMETER
* - #IOT_TASKPOOL_ILLEGAL_OPERATION
* - #IOT_TASKPOOL_NO_MEMORY
* - #IOT_TASKPOOL_SHUTDOWN_IN_PROGRESS
*
*
* @note This function will not allocate memory, so it is guaranteed to succeed if the parameters are correct and the task pool
* was correctly initialized, and not yet destroyed.
*
* <b>Example</b>
* @code{c}
* // An example of a user context to pass to a callback through a task pool thread.
* typedef struct JobUserContext
* {
* uint32_t counter;
* } JobUserContext_t;
*
* // An example of a user callback to invoke through a task pool thread.
* static void ExecutionCb( IotTaskPool_t taskPool, IotTaskPoolJob_t job, void * context )
* {
* ( void )taskPool;
* ( void )job;
*
* JobUserContext_t * pUserContext = ( JobUserContext_t * )context;
*
* pUserContext->counter++;
* }
*
* void TaskPoolExample( )
* {
* JobUserContext_t userContext = { 0 };
* IotTaskPoolJob_t job;
*
* // Create the system task pool. This example assumes the task pool is created successfully.
* // It is recommended to test the function's return value in production code.
* IotTaskPool_CreateSystemTaskPool( &xTaskPoolParameters );
*
* // Statically allocate one job, schedule it.
* IotTaskPool_CreateJob( &ExecutionCb, &userContext, &job );
*
* IotTaskPoolError_t errorSchedule = IotTaskPool_ScheduleSystemJob( &job, 0 );
*
* switch ( errorSchedule )
* {
* case IOT_TASKPOOL_SUCCESS:
* break;
* case IOT_TASKPOOL_BAD_PARAMETER: // Invalid parameters, such as a NULL handle, can trigger this error.
* case IOT_TASKPOOL_ILLEGAL_OPERATION: // Scheduling a job that was previously scheduled or destroyed could trigger this error.
* case IOT_TASKPOOL_NO_MEMORY: // Scheduling a with flag #IOT_TASKPOOL_JOB_HIGH_PRIORITY could trigger this error.
* case IOT_TASKPOOL_SHUTDOWN_IN_PROGRESS: // Scheduling a job after trying to destroy the task pool could trigger this error.
* // ASSERT
* break;
* default:
* // ASSERT
* }
*
* //
* // ... Perform other operations ...
* //
*
* IotTaskPool_Destroy( taskPool );
* }
* @endcode
*/
/* @[declare_taskpool_schedulesystemjob] */
IotTaskPoolError_t IotTaskPool_ScheduleSystemJob( IotTaskPoolJob_t pJob,
uint32_t flags );
/* @[declare_taskpool_schedulesystemjob] */
/* @[declare_taskpool_schedule] */
/**
* @brief This function schedules a job created with @ref IotTaskPool_CreateJob against the task pool