/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup RTEMSTestCaseRtemsModelEventsMgr1
 */

/*
 * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
 *                    Trinity College Dublin (http://www.tcd.ie)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This file was automatically generated.  Do not edit it manually.
 * Please have a look at
 *
 * https://docs.rtems.org/branches/master/eng/req/howto.html
 *
 * for information how to maintain and re-generate this file.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/score/threadimpl.h>

#include "tr-model-events-mgr.h"

#include <rtems/test.h>

typedef enum {
  PRIO_HIGH = 1,
  PRIO_NORMAL,
  PRIO_LOW,
  PRIO_OTHER
} Priorities;


typedef struct {
  rtems_status_code ( *send )( rtems_id, rtems_event_set ); // copy of the
                       // corresponding RtemsModelEventsMgr1_Run() parameter
  rtems_status_code ( *receive )
                    ( rtems_event_set, rtems_option
                    , rtems_interval, rtems_event_set * ); // copy of the
                 // corresponding RtemsModelEventsMgr1_Run() parameter
  rtems_event_set ( *get_pending_events )( Thread_Control * ); // copy of the
                    // corresponding RtemsModelEventsMgr1_Run() parameter
  unsigned int wait_class; // copy of the corresponding
                           // RtemsModelEventsMgr1_Run() parameter
  int waiting_for_event; // copy of the corresponding
                         // RtemsModelEventsMgr1_Run() parameter
  rtems_id receiver_id; // receiver ID used for the event send action.
  rtems_event_set events_to_send; // events to send for the event send action
  rtems_status_code send_status; // status of the event send action.
  rtems_option receive_option_set; // option set used for the event receive action
  rtems_interval receive_timeout; // timeout used for the event receive action
  rtems_event_set received_events; // events received by the event receive action
  rtems_status_code receive_status; // status of the event receive action
  rtems_event_set unsatisfied_pending; // pending events after an event send action
                       // which did not satsify the event condition of the receiver
  Thread_Control *runner_thread; // TCB of the runner task
  rtems_id runner_id; // ID of the runner task
  rtems_id worker_id; // task ID of the worker task
  rtems_id worker_wakeup; // ID of the semaphore used to wake up the worker task
  rtems_id runner_wakeup; // ID of the semaphore used to wake up the runner task
  rtems_id runner_sched; // scheduler ID of scheduler used by the runner task
  rtems_id other_sched; // scheduler ID of another scheduler
                        // which is not used by the runner task
  T_thread_switch_log_4 thread_switch_log; // thread switch log
} RtemsModelEventsMgr1_Context;

static RtemsModelEventsMgr1_Context
  RtemsModelEventsMgr1_Instance;

static const char PromelaModelEventsMgr[] = "/PML-EventsMgr1";

#define INPUT_EVENTS ( RTEMS_EVENT_5 | RTEMS_EVENT_23 )

#define WORKER_ATTRIBUTES RTEMS_DEFAULT_ATTRIBUTES

#define MAX_TLS_SIZE RTEMS_ALIGN_UP( 64, RTEMS_TASK_STORAGE_ALIGNMENT )

typedef RtemsModelEventsMgr1_Context Context;

RTEMS_ALIGNED( RTEMS_TASK_STORAGE_ALIGNMENT ) static char WorkerStorage[
  RTEMS_TASK_STORAGE_SIZE(
    MAX_TLS_SIZE + RTEMS_MINIMUM_STACK_SIZE,
    WORKER_ATTRIBUTES
  )
];

static const rtems_task_config WorkerConfig = {
  .name = rtems_build_name( 'W', 'O', 'R', 'K' ),
  .initial_priority = PRIO_LOW,
  .storage_area = WorkerStorage,
  .storage_size = sizeof( WorkerStorage ),
  .maximum_thread_local_storage_size = MAX_TLS_SIZE,
  .initial_modes = RTEMS_DEFAULT_MODES,
  .attributes = WORKER_ATTRIBUTES
};

static rtems_id CreateWakeupSema( void )
{
  rtems_status_code sc;
  rtems_id id;

  sc = rtems_semaphore_create(
    rtems_build_name( 'W', 'K', 'U', 'P' ),
    0,
    RTEMS_SIMPLE_BINARY_SEMAPHORE,
    0,
    &id
  );
  T_assert_rsc_success( sc );

  return id;
}

static void DeleteWakeupSema( rtems_id id )
{
  if ( id != 0 ) {
    rtems_status_code sc;

    sc = rtems_semaphore_delete( id );
    T_rsc_success( sc );
  }
}

static void Wait( rtems_id id )
{
  rtems_status_code sc;

  sc = rtems_semaphore_obtain( id, RTEMS_WAIT, RTEMS_NO_TIMEOUT );
  T_quiet_rsc_success( sc );
}

static void Wakeup( rtems_id id )
{
  rtems_status_code sc;

  sc = rtems_semaphore_release( id );
  T_quiet_rsc_success( sc );
}

static rtems_event_set GetPendingEvents( Context *ctx )
{
  rtems_event_set pending;
  rtems_status_code sc;

  sc = ( *ctx->receive )(
    RTEMS_PENDING_EVENTS,
    RTEMS_DEFAULT_OPTIONS,
    0,
    &pending
  );
  T_quiet_rsc_success( sc );

  return pending;
}


static rtems_option mergeopts( bool wait, bool wantall )
{
  rtems_option opts;

  if ( wait ) { opts = RTEMS_WAIT; }
  else { opts = RTEMS_NO_WAIT; } ;
  if ( wantall ) { opts |= RTEMS_EVENT_ALL; }
  else { opts |= RTEMS_EVENT_ANY; } ;
  return opts;
}


/*
 * Here we need a mapping from model "task numbers/names" to thread Id's here
 *  Promela Process 3 corresponds to Task 0 (Worker), doing Send
 *  Promela Process 4 corresponds to Task 1 (Runner), doing Receive
 */
static rtems_id mapid( Context *ctx, int pid )
{
  rtems_id mapped_id;

  switch ( pid ) {
    case 0 : mapped_id = ctx->worker_id ; break;
    case 1 : mapped_id = ctx->runner_id; break;
    default : mapped_id = 0xffffffff; break;
  }
  return mapped_id;
}

static void checkTaskIs( rtems_id expected_id )
{
  rtems_id own_id;

  own_id = _Thread_Get_executing()->Object.id;
  T_eq_u32( own_id, expected_id );
}

static void initialise_pending( rtems_event_set pending[], int max )
{
  int i;

  for( i=0; i < max; i++ ) {
    pending[i] = 0;
  }
}

static void initialise_semaphore( Context *ctx, rtems_id semaphore[] )
{
  semaphore[0] = ctx->worker_wakeup;
  semaphore[1] = ctx->runner_wakeup;
}

/* =============================================== */

// @@@ 0 NAME Event_Manager_TestGen
// @@@ 0 DEF NO_OF_EVENTS 4
#define NO_OF_EVENTS 4
// @@@ 0 DEF EVTS_NONE 0
#define EVTS_NONE 0
// @@@ 0 DEF EVTS_PENDING 0
#define EVTS_PENDING 0
// @@@ 0 DEF EVT_0 1
#define EVT_0 1
// @@@ 0 DEF EVT_1 2
#define EVT_1 2
// @@@ 0 DEF EVT_2 4
#define EVT_2 4
// @@@ 0 DEF EVT_3 8
#define EVT_3 8
// @@@ 0 DEF NO_TIMEOUT 0
#define NO_TIMEOUT 0
// @@@ 0 DEF TASK_MAX 2
#define TASK_MAX 2
// @@@ 0 DEF BAD_ID 2
#define BAD_ID 2
// @@@ 0 DEF SEMA_MAX 2
#define SEMA_MAX 2
// @@@ 0 DEF RC_OK RTEMS_SUCCESSFUL
#define RC_OK RTEMS_SUCCESSFUL
// @@@ 0 DEF RC_InvId RTEMS_INVALID_ID
#define RC_InvId RTEMS_INVALID_ID
// @@@ 0 DEF RC_InvAddr RTEMS_INVALID_ADDRESS
#define RC_InvAddr RTEMS_INVALID_ADDRESS
// @@@ 0 DEF RC_Unsat RTEMS_UNSATISFIED
#define RC_Unsat RTEMS_UNSATISFIED
// @@@ 0 DEF RC_Timeout RTEMS_TIMEOUT
#define RC_Timeout RTEMS_TIMEOUT
// @@@ 0 DCLARRAY EvtSet pending TASK_MAX
static rtems_event_set pending[TASK_MAX];
// @@@ 0 DECL byte sendrc 0
static rtems_status_code sendrc = 0;
// @@@ 0 DECL byte recrc 0
static rtems_status_code recrc = 0;
// @@@ 0 DECL byte recout 0
static rtems_event_set recout = 0;
// @@@ 0 DCLARRAY Semaphore semaphore SEMA_MAX
static rtems_id semaphore[SEMA_MAX];

/* ===== TEST CODE SEGMENT 0 =====*/

static void TestSegment0( Context* ctx ) {
  /* Test Name is defined in the Test Case code (tc-model-events-mgr.c) */

  T_log(T_NORMAL,"@@@ 0 INIT");
  initialise_pending( pending, TASK_MAX );
  initialise_semaphore( ctx, semaphore );

}

/* ===== TEST CODE SEGMENT 3 =====*/

static void TestSegment3( Context* ctx ) {
  T_log(T_NORMAL,"@@@ 3 TASK Worker");
  checkTaskIs( ctx->worker_id );
  T_log(T_NORMAL,"@@@ 3 WAIT 0");
  Wait( semaphore[0] );

  T_log(T_NORMAL,"@@@ 3 CALL event_send 0 1 14 sendrc");
  T_log( T_NORMAL, "Calling Send(%d,%d)", mapid( ctx, 1), 14 );
  sendrc = ( *ctx->send )( mapid( ctx, 1 ), 14 );
  T_log( T_NORMAL, "Returned 0x%x from Send", sendrc );

  T_log(T_NORMAL,"@@@ 3 SCALAR sendrc 0");
  T_rsc_success( sendrc );
  T_log(T_NORMAL,"@@@ 3 SIGNAL 1");
  Wakeup( semaphore[1] );

  T_log(T_NORMAL,"@@@ 3 STATE 0 Zombie");
  /* Code to check that Task 0 has terminated */
}

/* ===== TEST CODE SEGMENT 4 =====*/

static void TestSegment4( Context* ctx ) {
  T_log(T_NORMAL,"@@@ 4 TASK Runner");
  checkTaskIs( ctx->runner_id );
  T_log(T_NORMAL,"@@@ 4 SIGNAL 0");
  Wakeup( semaphore[0] );

  T_log(T_NORMAL,"@@@ 4 WAIT 1");
  Wait( semaphore[1] );

  T_log(T_NORMAL,"@@@ 4 SCALAR pending 1 14");
  pending[1] = GetPendingEvents( ctx );
  T_eq_int( pending[1], 14 );

  T_log(T_NORMAL,"@@@ 4 CALL event_receive 6 1 1 0 recout recrc");
  T_log( T_NORMAL, "Calling Receive(%d,%d,%d,%d)", 6, mergeopts( 1, 1 ) ,0 ,&recout );
  recrc = ( *ctx->receive )( 6, mergeopts( 1, 1 ), 0, &recout );
  T_log( T_NORMAL, "Returned 0x%x from Receive", recrc );

  T_log(T_NORMAL,"@@@ 4 SCALAR recrc 0");
  T_rsc_success( recrc );
  T_log(T_NORMAL,"@@@ 4 SCALAR recout 6");
  T_eq_int( recout, 6 );
  T_log(T_NORMAL,"@@@ 4 SCALAR pending 1 8");
  pending[1] = GetPendingEvents( ctx );
  T_eq_int( pending[1], 8 );

  T_log(T_NORMAL,"@@@ 4 SIGNAL 0");
  Wakeup( semaphore[0] );

  T_log(T_NORMAL,"@@@ 4 STATE 1 Zombie");
  /* Code to check that Task 1 has terminated */
}

/* =============================================== */


static void Worker( rtems_task_argument arg )
{
  Context *ctx;

  ctx = (Context *) arg;

  T_log( T_NORMAL, "Worker Running" );
  TestSegment3( ctx );
  T_log( T_NORMAL, "Worker finished" );

  rtems_task_exit();

}


static void Runner( RtemsModelEventsMgr1_Context *ctx )
{
  T_log( T_NORMAL, "Runner running" );
  TestSegment4( ctx );
  T_log( T_NORMAL, "Runner finished" );
}


static void RtemsModelEventsMgr1_Setup(
  RtemsModelEventsMgr1_Context *ctx
)
{
  rtems_status_code   sc;
  rtems_task_priority prio;

  T_log( T_NORMAL, "Runner Setup" );

  memset( ctx, 0, sizeof( *ctx ) );
  ctx->runner_thread = _Thread_Get_executing();
  ctx->runner_id = ctx->runner_thread->Object.id;
  ctx->worker_wakeup = CreateWakeupSema();
  ctx->runner_wakeup = CreateWakeupSema();

  sc = rtems_task_get_scheduler( RTEMS_SELF, &ctx->runner_sched );
  T_rsc_success( sc );

  #if defined(RTEMS_SMP)
  sc = rtems_scheduler_ident_by_processor( 1, &ctx->other_sched );
  T_rsc_success( sc );
  T_ne_u32( ctx->runner_sched, ctx->other_sched );
  #endif

  prio = 0;
  sc = rtems_task_set_priority( RTEMS_SELF, PRIO_NORMAL, &prio );
  T_rsc_success( sc );
  T_eq_u32( prio, PRIO_HIGH );

  sc = rtems_task_construct( &WorkerConfig, &ctx->worker_id );
  T_log( T_NORMAL, "Construct Worker, sc = %x", sc );
  T_assert_rsc_success( sc );

  T_log( T_NORMAL, "Starting Worker..." );
  sc = rtems_task_start( ctx->worker_id, Worker, (rtems_task_argument) ctx );
  T_log( T_NORMAL, "Started Worker, sc = %x", sc );
  T_assert_rsc_success( sc );
}

static void RtemsModelEventsMgr1_Setup_Wrap( void *arg )
{
  RtemsModelEventsMgr1_Context *ctx;

  ctx = arg;
  RtemsModelEventsMgr1_Setup( ctx );
}

static void RtemsModelEventsMgr1_Teardown(
  RtemsModelEventsMgr1_Context *ctx
)
{
  rtems_status_code   sc;
  rtems_task_priority prio;

  T_log( T_NORMAL, "Runner Teardown" );

  prio = 0;
  sc = rtems_task_set_priority( RTEMS_SELF, PRIO_HIGH, &prio );
  T_rsc_success( sc );
  T_eq_u32( prio, PRIO_NORMAL );

  if ( ctx->worker_id != 0 ) {
    sc = rtems_task_delete( ctx->worker_id );
    T_rsc_success( sc );
  }

  DeleteWakeupSema( ctx->worker_wakeup );
  DeleteWakeupSema( ctx->runner_wakeup );
}

static void RtemsModelEventsMgr1_Teardown_Wrap( void *arg )
{
  RtemsModelEventsMgr1_Context *ctx;

  ctx = arg;
  RtemsModelEventsMgr1_Teardown( ctx );
}

static size_t RtemsModelEventsMgr1_Scope( void *arg, char *buf, size_t n )
{
  size_t pme_size;

  pme_size = strlen(PromelaModelEventsMgr);
  return T_str_copy(buf, PromelaModelEventsMgr, pme_size);
}

static T_fixture RtemsModelEventsMgr1_Fixture = {
  .setup = RtemsModelEventsMgr1_Setup_Wrap,
  .stop = NULL,
  .teardown = RtemsModelEventsMgr1_Teardown_Wrap,
  .scope = RtemsModelEventsMgr1_Scope,
  .initial_context = &RtemsModelEventsMgr1_Instance
};



static void RtemsModelEventsMgr1_Cleanup(
  RtemsModelEventsMgr1_Context *ctx
)
{
  rtems_status_code sc;
  rtems_event_set events;

  events = 0;
  sc = ( *ctx->receive )(
    RTEMS_ALL_EVENTS,
    RTEMS_NO_WAIT | RTEMS_EVENT_ANY,
    0,
    &events
  );
  if ( sc == RTEMS_SUCCESSFUL ) {
    T_quiet_ne_u32( events, 0 );
  } else {
    T_quiet_rsc( sc, RTEMS_UNSATISFIED );
    T_quiet_eq_u32( events, 0 );
  }
}


static T_fixture_node RtemsModelEventsMgr1_Node;

void RtemsModelEventsMgr1_Run(
  rtems_status_code ( *send )( rtems_id, rtems_event_set ),
  rtems_status_code ( *receive )( rtems_event_set, rtems_option, rtems_interval, rtems_event_set * ),
  rtems_event_set (   *get_pending_events )( Thread_Control * ),
  unsigned int         wait_class,
  int                  waiting_for_event
)
{
  RtemsModelEventsMgr1_Context *ctx;

  T_set_verbosity( T_NORMAL );

  T_log( T_NORMAL, "Runner Invoked" );
  T_log( T_NORMAL, "Runner Wait Class: %d", wait_class );
  T_log( T_NORMAL, "Runner WaitForEvent: %d", waiting_for_event );

  T_log( T_NORMAL, "Pushing Test Fixture..." );

  ctx = T_push_fixture(
    &RtemsModelEventsMgr1_Node,
    &RtemsModelEventsMgr1_Fixture
  );

  T_log( T_NORMAL, "Test Fixture Pushed" );

  ctx->send = send;
  ctx->receive = receive;
  ctx->get_pending_events = get_pending_events;
  ctx->wait_class = wait_class;
  ctx->waiting_for_event = waiting_for_event;

  // RtemsModelEventsMgr1_Prepare( ctx );
  ctx->events_to_send = 0;
  ctx->send_status = RTEMS_INCORRECT_STATE;
  ctx->received_events = 0xffffffff;
  ctx->receive_option_set = 0;
  ctx->receive_timeout = RTEMS_NO_TIMEOUT;
  ctx->unsatisfied_pending = 0xffffffff;
  memset( &ctx->thread_switch_log, 0, sizeof( ctx->thread_switch_log ) );
  T_eq_u32( GetPendingEvents( ctx ), 0 );
  _Thread_Wait_flags_set( ctx->runner_thread, THREAD_WAIT_FLAGS_INITIAL );

  TestSegment0( ctx );

  Runner( ctx );

  RtemsModelEventsMgr1_Cleanup( ctx );

  T_log( T_NORMAL, "Run Pop Fixture" );
  T_pop_fixture();
}

/** @} */