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SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
copyrights:
- Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
enabled-by: RTEMS_SMP
functional-type: action
links:
- role: interface-function
  uid: ../if/obtain
post-conditions:
- name: Home
  states:
  - name: Task
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_eq_ptr( scheduled, ctx->tq_ctx.runner_tcb );
    text: |
      The obtaining task shall execute on the processor owned by the
      ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: TaskIdle
    test-code: |
      T_eq_u32( task_cpu_index, 1 );
      T_true( scheduled->is_idle );
      scheduler_node = _Thread_Scheduler_get_node_by_index(
        ctx->tq_ctx.runner_tcb,
        0
      );
      T_eq_ptr( scheduler_node->user, scheduled );
    text: |
      An idle task on behalf of the obtaining task shall execute on the processor
      owned by the ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: Second
    test-code: |
      T_eq_u32( task_cpu_index, 1 );
      T_eq_ptr( scheduled, ctx->tq_ctx.worker_tcb[ SECOND ] );
    text: |
      The second task shall execute on the processor owned by the
      ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: SecondIdle
    test-code: |
      T_eq_u32( task_cpu_index, 1 );
      T_true( scheduled->is_idle );
      scheduler_node = _Thread_Scheduler_get_node_by_index(
        ctx->tq_ctx.worker_tcb[ SECOND ],
        0
      );
      T_eq_ptr( scheduler_node->user, scheduled );
    text: |
      An idle task on behalf of the second task shall execute on the processor
      owned by the ${/glossary/scheduler-home:/term} of the obtaining task.
  test-epilogue: null
  test-prologue: |
    const Per_CPU_Control *cpu;
    const Thread_Control  *scheduled;
    const Scheduler_Node  *scheduler_node;
    uint32_t               task_cpu_index;

    cpu = _Per_CPU_Get_by_index( 0 );
    scheduled = cpu->heir;
    task_cpu_index = rtems_scheduler_get_processor(); 
- name: Helping
  states:
  - name: Idle
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_true( scheduled->is_idle );
    text: |
      An idle task shall execute on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Task
    test-code: |
      T_eq_u32( task_cpu_index, 1 );
      T_eq_ptr( scheduled, ctx->tq_ctx.runner_tcb );
    text: |
      The obtaining task shall execute on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: TaskIdle
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_true( scheduled->is_idle );
      scheduler_node = _Thread_Scheduler_get_node_by_index(
        ctx->tq_ctx.runner_tcb,
        1
      );
      T_eq_ptr( scheduler_node->user, ctx->tq_ctx.runner_tcb );
    text: |
      An idle task on behalf of the obtaining task shall execute on the processor
      owned by the ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Helping
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_eq_ptr( scheduled, ctx->tq_ctx.worker_tcb[ HELPING ] );
    text: |
      The helping task shall execute on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: HelpingIdle
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_true( scheduled->is_idle );
      scheduler_node = _Thread_Scheduler_get_node_by_index(
        ctx->tq_ctx.worker_tcb[ HELPING ],
        1
      );
      T_eq_ptr( scheduler_node->user, scheduled );
    text: |
      An idle task on behalf of the helping task shall execute on the processor
      owned by the ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Third
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      T_eq_ptr( scheduled, ctx->tq_ctx.worker_tcb[ THIRD ] );
    text: |
      The third task shall execute on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: ThirdIdle
    test-code: |
      T_eq_u32( task_cpu_index, 0 );
      scheduler_node = _Thread_Scheduler_get_node_by_index(
        ctx->tq_ctx.worker_tcb[ THIRD ],
        1
      );
      T_eq_ptr( scheduler_node->user, scheduled );
    text: |
      An idle task on behalf of the third task shall execute on the processor
      owned by the ${/glossary/scheduler-helping:/term} of the obtaining task.
  test-epilogue: null
  test-prologue: |
    const Per_CPU_Control *cpu;
    const Thread_Control  *scheduled;
    const Scheduler_Node  *scheduler_node;
    uint32_t               task_cpu_index;

    cpu = _Per_CPU_Get_by_index( 1 );
    scheduled = cpu->heir;
    task_cpu_index = rtems_scheduler_get_processor(); 
pre-conditions:
- name: Home
  states:
  - name: Idle
    test-code: |
      ctx->scheduler_a_idle = true;
    text: |
      While an idle task executes on the processor owned by the
      ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: Task
    test-code: |
      ctx->task_scheduler = SCHEDULER_A_ID;
    text: |
      While the obtaining task executes on the processor owned by the
      ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: TaskIdle
    test-code: |
      ctx->scheduler_a_idle = true;
    text: |
      While an idle task on behalf of the obtaining task executes on the
      processor owned by the ${/glossary/scheduler-home:/term} of the obtaining
      task.
  - name: Second
    test-code: |
      ctx->second_active = true;
    text: |
      While the second task executes on the processor owned by the
      ${/glossary/scheduler-home:/term} of the obtaining task.
  - name: SecondIdle
    test-code: |
      ctx->second_active = true;
      ctx->scheduler_a_idle = true;
    text: |
      While an idle task on behalf of the second task executes on the processor
      owned by the ${/glossary/scheduler-home:/term} of the obtaining task.
  test-epilogue: null
  test-prologue: null
- name: Helping
  states:
  - name: Idle
    test-code: |
      ctx->scheduler_b_idle = true;
    text: |
      While an idle task executes on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Task
    test-code: |
      ctx->task_scheduler = SCHEDULER_B_ID;
    text: |
      While the obtaining task executes on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Helping
    test-code: |
      ctx->task_owns_mrsp_semaphore = true;
      ctx->helping_active = true;
    text: |
      While a helping task of the obtaining task executes on the processor
      owned by the ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: HelpingIdle
    test-code: |
      ctx->task_owns_mrsp_semaphore = true;
      ctx->helping_active = true;
      ctx->scheduler_b_idle = true;
    text: |
      While an idle task on behalf of a helping task of the obtaining task
      executes on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: Third
    test-code: |
      ctx->third_active = true;
    text: |
      While the third task executes on the processor owned by the
      ${/glossary/scheduler-helping:/term} of the obtaining task.
  - name: ThirdIdle
    test-code: |
      ctx->third_active = true;
      ctx->scheduler_b_idle = true;
    text: |
      While an idle task on behalf of the third task executes on the processor
      owned by the ${/glossary/scheduler-helping:/term} of the obtaining task.
  test-epilogue: null
  test-prologue: null
- name: PriorityHome
  states:
  - name: None
    test-code: |
      ctx->second_priority = PRIO_HIGH;
      ctx->sema_priority_scheduler_a = PRIO_NORMAL;
    text: |
      While no ceiling priority with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is already
      available to the task.
  - name: NewHigh
    test-code: |
      ctx->task_owns_mrsp_semaphore = true;
      ctx->sema_priority_scheduler_a = PRIO_HIGH;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is higher than
      the ceiling priorities already available to the task.
  - name: NewEqual
    test-code: |
      ctx->task_owns_mrsp_semaphore = true;
      ctx->sema_priority_scheduler_a = PRIO_NORMAL;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is equal to the
      ceiling priorities already available to the task.
  - name: SecondHigh
    test-code: |
      ctx->second_priority = PRIO_HIGH;
      ctx->sema_priority_scheduler_a = PRIO_VERY_HIGH;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is higher than
      the priority of the second task.
  - name: SecondEqual
    test-code: |
      ctx->second_priority = PRIO_HIGH;
      ctx->sema_priority_scheduler_a = PRIO_HIGH;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is equal to
      the priority of the second task.
  - name: SecondLow
    test-code: |
      ctx->second_priority = PRIO_HIGH;
      ctx->sema_priority_scheduler_a = PRIO_NORMAL;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-home:/term} of the obtaining task is lower than the
      priority of the second task.
  test-epilogue: null
  test-prologue: null
- name: PriorityHelping
  states:
  - name: None
    test-code: |
      ctx->sema_priority_scheduler_b = PRIO_NORMAL;
    text: |
      While no ceiling priority with respect to the
      ${/glossary/scheduler-helping:/term} of the obtaining task is already
      available to the task.
  - name: Helping
    test-code: |
      ctx->helping_active = true;
      ctx->task_owns_mrsp_semaphore = true;
      ctx->sema_priority_scheduler_b = PRIO_NORMAL;
    text: |
      While ceiling priorities with respect to the
      ${/glossary/scheduler-helping:/term} of the obtaining task are already
      available to the task.
  - name: ThirdHigh
    test-code: |
      ctx->third_priority = PRIO_LOW;
      ctx->sema_priority_scheduler_b = PRIO_NORMAL;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-helping:/term} of the obtaining task is higher than
      the priority of the third task.
  - name: ThirdEqual
    test-code: |
      ctx->third_priority = PRIO_NORMAL;
      ctx->sema_priority_scheduler_b = PRIO_NORMAL;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-helping:/term} of the obtaining task is equal to
      the priority of the third task.
  - name: ThirdLow
    test-code: |
      ctx->third_priority = PRIO_HIGH;
      ctx->sema_priority_scheduler_b = PRIO_NORMAL;
    text: |
      While the ceiling priority of the semaphore with respect to the
      ${/glossary/scheduler-helping:/term} of the obtaining task is lower than
      the priority of the third task.
  test-epilogue: null
  test-prologue: null
rationale: null
references: []
requirement-type: functional
skip-reasons:
  TaskExecutesExactlyOnce: |
    The task executes on either the home or the helping scheduler.
  MrsPCeilingRequired: |
    The availability of MrsP ceiling priorities depends on the ownership of a
    MrsP semaphore and helping tasks associated with such a semaphore.
  SecondProrityNeedsSecondTask: |
    The second task is required to have a priority relative to the second task.
  ThirdProrityNeedsThirdTask: |
    The third task is required to have a priority relative to the third task.
test-action: |
  if ( ctx->task_owns_mrsp_semaphore ) {
    TQMutexObtain( &ctx->tq_ctx, TQ_MUTEX_B );
  }

  if ( ctx->helping_active ) {
    T_true( ctx->task_owns_mrsp_semaphore );

    TQSendAndWaitForIntendToBlock(
      &ctx->tq_ctx,
      HELPING,
      TQ_EVENT_MUTEX_B_OBTAIN
    );

    if ( ctx->scheduler_b_idle ) {
      SuspendTask( ctx->tq_ctx.worker_id[ HELPING ] );
    }
  }

  if ( ctx->scheduler_a_idle || ctx->second_active ) {
    MoveToScheduler( ctx, SCHEDULER_B_ID );
  }

  if ( ctx->second_active ) {
    T_false( ctx->third_active );

    TQSetPriority( &ctx->tq_ctx, SECOND, ctx->second_priority );

    if ( ctx->scheduler_a_idle ) {
      SetSemaphorePriority(
        ctx->tq_ctx.mutex_id[ TQ_MUTEX_C ],
        ctx->second_priority,
        ctx->second_priority
      );
      TQSendAndWaitForExecutionStop(
        &ctx->tq_ctx,
        SECOND,
        TQ_EVENT_MUTEX_C_OBTAIN
      );
    } else {
      ctx->tq_ctx.busy_wait[ SECOND ] = true;
      TQSend( &ctx->tq_ctx, SECOND, TQ_EVENT_BUSY_WAIT );
      TQWaitForEventsReceived( &ctx->tq_ctx, SECOND );
    }
  }

  if ( ctx->third_active ) {
    T_false( ctx->second_active );

    TQSetPriority( &ctx->tq_ctx, THIRD, ctx->third_priority );

    if ( ctx->scheduler_b_idle ) {
      SetSemaphorePriority(
        ctx->tq_ctx.mutex_id[ TQ_MUTEX_C ],
        ctx->third_priority,
        ctx->third_priority
      );
      TQSendAndWaitForExecutionStop(
        &ctx->tq_ctx,
        THIRD,
        TQ_EVENT_MUTEX_C_OBTAIN
      );
    } else {
      ctx->tq_ctx.busy_wait[ THIRD ] = true;
      TQSend( &ctx->tq_ctx, THIRD, TQ_EVENT_BUSY_WAIT );
      TQWaitForEventsReceived( &ctx->tq_ctx, THIRD );
    }
  }

  SetSemaphorePriority(
    ctx->sema_id,
    ctx->sema_priority_scheduler_a,
    ctx->sema_priority_scheduler_b
  );
  ObtainMutex( ctx->sema_id );
test-brief: null
test-cleanup: |
  ReleaseMutex( ctx->sema_id );

  if ( ctx->task_owns_mrsp_semaphore ) {
    TQMutexRelease( &ctx->tq_ctx, TQ_MUTEX_B );
  }

  if ( ctx->second_active ) {
    MoveToScheduler( ctx, SCHEDULER_B_ID );

    if ( ctx->scheduler_a_idle ) {
      TQSendAndWaitForExecutionStop(
        &ctx->tq_ctx,
        SECOND,
        TQ_EVENT_MUTEX_C_RELEASE
      );
    } else {
      ctx->tq_ctx.busy_wait[ SECOND ] = false;
      TQWaitForExecutionStop( &ctx->tq_ctx, SECOND );
    }
  }

  if ( ctx->third_active ) {
    MoveToScheduler( ctx, SCHEDULER_A_ID );

    if ( ctx->scheduler_b_idle ) {
      TQSendAndWaitForExecutionStop(
        &ctx->tq_ctx,
        THIRD,
        TQ_EVENT_MUTEX_C_RELEASE
      );
    } else {
      ctx->tq_ctx.busy_wait[ THIRD ] = false;
      TQWaitForExecutionStop( &ctx->tq_ctx, THIRD );
    }
  }

  if ( ctx->helping_active ) {
    MoveToScheduler( ctx, SCHEDULER_A_ID );

    if ( ctx->scheduler_b_idle ) {
      ResumeTask( ctx->tq_ctx.worker_id[ HELPING ] );
    }

    TQSendAndWaitForExecutionStop(
      &ctx->tq_ctx,
      HELPING,
      TQ_EVENT_MUTEX_B_RELEASE
    );
  }

  MoveToScheduler( ctx, SCHEDULER_A_ID );
test-context:
- brief: |
    This member contains the thread queue test context.
  description: null
  member: |
    TQContext tq_ctx
- brief: |
    This member contains the MrsP semaphore to obtain.
  description: null
  member: |
    rtems_id sema_id
- brief: |
    This member specifies the scheduler on which the task executes.
  description: null
  member: |
    rtems_id task_scheduler
- brief: |
    If this member is true, then the task shall already own a MrsP semaphore.
  description: null
  member: |
    bool task_owns_mrsp_semaphore
- brief: |
    If this member is true, then an idle task shall execute on scheduler A.
  description: null
  member: |
    bool scheduler_a_idle
- brief: |
    If this member is true, then an idle task shall execute on scheduler B.
  description: null
  member: |
    bool scheduler_b_idle
- brief: |
    If this member is true, then the second task shall be active.
  description: null
  member: |
    bool second_active
- brief: |
    This member specifies the priority of the second task.
  description: null
  member: |
    rtems_task_priority second_priority
- brief: |
    If this member is true, then the third task shall be active.
  description: null
  member: |
    bool third_active
- brief: |
    This member specifies the priority of the third task.
  description: null
  member: |
    rtems_task_priority third_priority
- brief: |
    If this member is true, then the helping task shall be active.
  description: null
  member: |
    bool helping_active
- brief: |
    This member specifies the priority of the MrsP semaphore with respect to
    scheduler A.
  description: null
  member: |
    rtems_task_priority sema_priority_scheduler_a
- brief: |
    This member specifies the priority of the MrsP semaphore with respect to
    scheduler B.
  description: null
  member: |
    rtems_task_priority sema_priority_scheduler_b
test-context-support: null
test-description: null
test-header: null
test-includes:
- rtems.h
- rtems/score/percpu.h
- rtems/score/threadimpl.h
- string.h
test-local-includes:
- tx-support.h
- tx-thread-queue.h
test-prepare: |
  ctx->task_scheduler = INVALID_ID;
  ctx->task_owns_mrsp_semaphore = false;
  ctx->scheduler_a_idle = false;
  ctx->scheduler_b_idle = false;
  ctx->helping_active = false;
  ctx->second_active = false;
  ctx->third_active = false;
test-setup:
  brief: null
  code: |
    rtems_status_code sc;
    rtems_id          mutex_b;
    rtems_id          mutex_c;

    memset( ctx, 0, sizeof( *ctx ) );

    sc = rtems_semaphore_create(
      rtems_build_name( 'S', 'E', 'M', 'A' ),
      1,
      RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY |
        RTEMS_MULTIPROCESSOR_RESOURCE_SHARING,
      PRIO_NORMAL,
      &ctx->sema_id
    );
    T_rsc_success( sc );

    ctx->tq_ctx.deadlock = TQ_DEADLOCK_STATUS;
    ctx->tq_ctx.enqueue_prepare = TQEnqueuePrepareDefault;
    ctx->tq_ctx.enqueue_done = TQEnqueueDoneDefault;
    ctx->tq_ctx.enqueue = TQEnqueueClassicSem;
    ctx->tq_ctx.surrender = TQSurrenderClassicSem;
    ctx->tq_ctx.get_owner = TQGetOwnerClassicSem;
    ctx->tq_ctx.convert_status = TQConvertStatusClassic;
    TQInitialize( &ctx->tq_ctx );

    DeleteMutex( ctx->tq_ctx.mutex_id[ TQ_MUTEX_B ] );
    DeleteMutex( ctx->tq_ctx.mutex_id[ TQ_MUTEX_C ] );

    mutex_b = 0;
    sc = rtems_semaphore_create(
      rtems_build_name( 'M', 'T', 'X', 'B' ),
      1,
      RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY |
        RTEMS_MULTIPROCESSOR_RESOURCE_SHARING,
      PRIO_NORMAL,
      &mutex_b
    );
    T_rsc_success( sc );

    mutex_c = 0;
    sc = rtems_semaphore_create(
      rtems_build_name( 'M', 'T', 'X', 'C' ),
      1,
      RTEMS_BINARY_SEMAPHORE | RTEMS_PRIORITY |
        RTEMS_MULTIPROCESSOR_RESOURCE_SHARING,
      PRIO_NORMAL,
      &mutex_c
    );
    T_rsc_success( sc );

    ctx->tq_ctx.mutex_id[ TQ_MUTEX_B ] = mutex_b;
    ctx->tq_ctx.mutex_id[ TQ_MUTEX_C ] = mutex_c;

    TQSetScheduler( &ctx->tq_ctx, HELPING, SCHEDULER_B_ID, PRIO_VERY_LOW );
    TQSetScheduler( &ctx->tq_ctx, THIRD, SCHEDULER_B_ID, PRIO_NORMAL );

    TQMutexObtain( &ctx->tq_ctx, TQ_MUTEX_A );
    TQSetScheduler( &ctx->tq_ctx, ASSISTANT, SCHEDULER_B_ID, PRIO_VERY_LOW );
    TQSendAndWaitForExecutionStop(
      &ctx->tq_ctx,
      ASSISTANT,
      TQ_EVENT_MUTEX_A_OBTAIN
    );

    SetSemaphorePriority(
      ctx->tq_ctx.mutex_id[ TQ_MUTEX_B ],
      PRIO_NORMAL,
      PRIO_VERY_LOW
    );
  description: null
test-stop: null
test-support: |
  #define HELPING TQ_BLOCKER_A

  #define SECOND TQ_BLOCKER_B

  #define THIRD TQ_BLOCKER_C

  #define ASSISTANT TQ_BLOCKER_D

  #define MOVER TQ_BLOCKER_E

  typedef ${.:/test-context-type} Context;

  static void SetSemaphorePriority(
    rtems_id            id,
    rtems_task_priority priority_a,
    rtems_task_priority priority_b
  )
  {
    rtems_status_code   sc;
    rtems_task_priority priority;

    sc = rtems_semaphore_set_priority(
      id,
      SCHEDULER_A_ID,
      priority_a,
      &priority
    );
    T_rsc_success( sc );

    sc = rtems_semaphore_set_priority(
      id,
      SCHEDULER_B_ID,
      priority_b,
      &priority
    );
    T_rsc_success( sc );
  }

  static void MoveToScheduler( Context *ctx, rtems_id scheduler_id )
  {
    rtems_id other_scheduler_id;
    uint32_t cpu;

    if ( scheduler_id == SCHEDULER_A_ID ) {
      other_scheduler_id =  SCHEDULER_B_ID;
      cpu = 0;
    } else {
      other_scheduler_id =  SCHEDULER_A_ID;
      cpu = 1;
    }

    TQSetScheduler( &ctx->tq_ctx, MOVER, other_scheduler_id, PRIO_VERY_HIGH );
    ctx->tq_ctx.busy_wait[ MOVER ] = true;
    TQSend( &ctx->tq_ctx, MOVER, TQ_EVENT_BUSY_WAIT );
    TQWaitForEventsReceived( &ctx->tq_ctx, MOVER );
    T_eq_u32( rtems_scheduler_get_processor(), cpu );
    ctx->tq_ctx.busy_wait[ MOVER ] = false;
    TQWaitForExecutionStop( &ctx->tq_ctx, MOVER );
  }
test-target: testsuites/validation/tc-sem-mrsp-obtain.c
test-teardown:
  brief: null
  code: |
    TQMutexRelease( &ctx->tq_ctx, TQ_MUTEX_A );
    TQSendAndWaitForExecutionStop(
      &ctx->tq_ctx,
      ASSISTANT,
      TQ_EVENT_MUTEX_A_RELEASE
    );
    TQDestroy( &ctx->tq_ctx );
    DeleteMutex( ctx->sema_id );
  description: null
text: |
  When a ${/glossary/mrsp:/term} semaphore is obtained.
transition-map:
- enabled-by: true
  post-conditions:
    Home:
    - if:
        pre-conditions:
          Home: Task
      then: Task
    - if:
      - pre-conditions:
          Home:
          - Idle
          - TaskIdle
      - pre-conditions:
          Home:
          - Second
          - SecondIdle
          PriorityHome:
          - SecondHigh
      then: TaskIdle
    - specified-by: Home
    Helping:
    - specified-by: Helping
  pre-conditions:
    Home: all
    Helping: all
    PriorityHome: all
    PriorityHelping: all
- enabled-by: true
  post-conditions: TaskExecutesExactlyOnce
  pre-conditions:
    Home:
    - Task
    Helping:
    - Task
    PriorityHome: all
    PriorityHelping: all
- enabled-by: true
  post-conditions: TaskExecutesExactlyOnce
  pre-conditions:
    Home:
    - Idle
    - TaskIdle
    - Second
    - SecondIdle
    Helping:
    - Idle
    - Helping
    - HelpingIdle
    - Third
    - ThirdIdle
    PriorityHome: all
    PriorityHelping: all
- enabled-by: true
  post-conditions: SecondProrityNeedsSecondTask
  pre-conditions:
    Home:
    - Idle
    - Task
    - TaskIdle
    Helping: all
    PriorityHome:
    - SecondHigh
    - SecondEqual
    - SecondLow
    PriorityHelping: all
- enabled-by: true
  post-conditions: ThirdProrityNeedsThirdTask
  pre-conditions:
    Home: all
    Helping:
    - Idle
    - Task
    - Helping
    - HelpingIdle
    PriorityHome: all
    PriorityHelping:
    - ThirdHigh
    - ThirdEqual
    - ThirdLow
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home:
    - Idle
    - Second
    - SecondIdle
    Helping: all
    PriorityHome:
    - NewHigh
    - NewEqual
    PriorityHelping: all
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping:
    - Idle
    PriorityHome:
    - NewHigh
    - NewEqual
    PriorityHelping: all
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home:
    - TaskIdle
    Helping: all
    PriorityHome:
    - None
    PriorityHelping: all
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home:
    - TaskIdle
    Helping: all
    PriorityHome: all
    PriorityHelping:
    - None
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping:
    - Helping
    - HelpingIdle
    PriorityHome:
    - None
    PriorityHelping: all
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping:
    - HelpingIdle
    PriorityHome: all
    PriorityHelping:
    - None
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping: all
    PriorityHome:
    - NewHigh
    - NewEqual
    PriorityHelping:
    - None
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping:
    - Idle
    PriorityHome: all
    PriorityHelping:
    - Helping
- enabled-by: true
  post-conditions: MrsPCeilingRequired
  pre-conditions:
    Home: all
    Helping: all
    PriorityHome:
    - None
    PriorityHelping:
    - Helping
type: requirement