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#define CONFIGURE_INIT

#include "system.h"

#include <sched.h>

#include <fcntl.h>

#include <time.h>

#include <tmacros.h>

void *POSIX_Init(

  void *argument

)

{

  int             status;

  int             value;

  int             i;

  sem_t           sems[CONFIGURE_MAXIMUM_POSIX_SEMAPHORES];

  sem_t           sem2;

  sem_t           *n_sem1;

  sem_t           *n_sem2;

  struct timespec waittime;

  char            failure_msg[80];

  puts( "\n\n*** POSIX SEMAPHORE MANAGER TEST 1 ***" );

  puts( "Init: sem_init - SUCCESSFUL" );

  for (i = 0; i < CONFIGURE_MAXIMUM_POSIX_SEMAPHORES; i++) {

    status = sem_init(&sems[i], 0, i);

    sprintf(failure_msg, "sem_init %d", i );

    fatal_posix_service_status( status, 0, failure_msg);

  }

  puts( "Init: sem_init - UNSUCCESSFUL (ENOSPC)" );

  status = sem_init(&sem2, 0, 1);

  fatal_posix_service_status( status, -1, "sem_init error return status");

  fatal_posix_service_status( errno, ENOSPC, "sem_init errorno ENOSPC" );

  puts( "Init: sem_init - UNSUCCESSFUL (ENOSYS -- pshared not supported)" );

  status = sem_init(&sem2, 1, 1);

  fatal_posix_service_status( status, -1, "sem_init error return status");

  fatal_posix_service_status( errno, ENOSYS, "sem_init errno set to ENOSYS");

  puts( "Init: sem_getvalue - SUCCESSFUL ");

  for (i = 0; i < CONFIGURE_MAXIMUM_POSIX_SEMAPHORES; i++) {

    status = sem_getvalue(&sems[i], &value);

    sprintf( failure_msg, "sem_getvalue %d", i );

    fatal_posix_service_status( status, 0, failure_msg );

    fatal_posix_service_status( value, i, "sem_getvalue correct value" );

  }

  puts( "Init: sem_getvalue - UNSUCCESSFUL ");

  status = sem_getvalue(&sem2, &value);

  fatal_posix_service_status( status, -1, "sem_getvalue error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_getvalue errno EINVAL");

  puts( "Init: sem_destroy - SUCCESSFUL" );

  status = sem_destroy(&sems[0]);

  fatal_posix_service_status( status, 0, "sem_destroy semaphore 0");

  puts( "Init: sem_destroy - UNSUCCESSFUL (EINVAL)" );

  status = sem_destroy(&sem2);

  fatal_posix_service_status( status, -1, "sem_destroy error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_destroy errno EINVAL");

  puts( "Init: sem_wait - SUCCESSFUL" );

  status = sem_wait(&sems[1]);

  fatal_posix_service_status( status, 0, "sem_wait semaphore 1");

  puts( "Init: sem_wait - UNSUCCESSFUL (EINVAL)" );

  status = sem_wait(&sem2);

  fatal_posix_service_status( status, -1, "sem_wait error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_wait errno EINVAL");

  puts( "Init: sem_post - SUCCESSFUL" );

  status = sem_post(&sems[1]);

  fatal_posix_service_status( status, 0, "sem_post semaphore 1");

  puts( "Init: sem_wait - SUCCESSFUL (after a sem_post)" );

  status = sem_wait(&sems[1]);

  fatal_posix_service_status( status, 0, "sem_wait semaphore 1");

  puts( "Init: sem_trywait - SUCCESSFUL" );

  status = sem_trywait(&sems[2]);

  fatal_posix_service_status( status, 0, "sem_trywait semaphore 2");

  puts( "Init: sem_trywait - UNSUCCESSFUL (EAGAIN)" );

  status = sem_trywait(&sems[1]);

  fatal_posix_service_status( status, -1, "sem_trywait error return status");

  fatal_posix_service_status( errno, EAGAIN, "sem_trywait errno EAGAIN");

  puts( "Init: sem_trywait - UNSUCCESSFUL (EINVAL)" );

  status = sem_trywait(&sem2);

  fatal_posix_service_status( status, -1, "sem_trywait error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_trywait errno EINVAL");

  puts( "Init: sem_timedwait - SUCCESSFUL" );

  waittime.tv_sec = 0;

  waittime.tv_nsec = 100;

  status = sem_timedwait(&sems[2], &waittime);

  fatal_posix_service_status( status, 0, "sem_timedwait semaphore 2");

  puts( "Init: sem_timedwait - UNSUCCESSFUL (ETIMEDOUT)" );

  status = sem_timedwait(&sems[1], &waittime);

  fatal_posix_service_status( status, -1, "sem_timedwait error return status");

  fatal_posix_service_status( errno, ETIMEDOUT, "sem_timedwait errno ETIMEDOUT");

  puts( "Init: sem_timedwait - UNSUCCESSFUL (EINVAL)" );

  status = sem_timedwait(&sem2, &waittime);

  fatal_posix_service_status( status, -1, "sem_timedwait error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_init errno EINVAL");

  puts( "Init: sem_post - UNSUCCESSFUL (EINVAL)" );

  status = sem_post(&sem2);

  fatal_posix_service_status( status, -1, "sem_post error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_post errno EINVAL");

  puts( "Init: sem_destroy - SUCCESSFUL" );

  for (i = 1; i < CONFIGURE_MAXIMUM_POSIX_SEMAPHORES; i++) {

    status = sem_destroy(&sems[i]);

    sprintf( failure_msg, "sem_destroy %d", i );

    fatal_posix_service_status( status, 0, failure_msg );

  }

  /* Modes are currently unsupported */

  /*

   * Validate all sem_open return paths.

   */

  puts( "Init: sem_open - sem1 SUCCESSFUL" );

  n_sem1 = sem_open( "sem1", O_CREAT, 00777, 1 );

  assert( n_sem1 != SEM_FAILED );

  puts( "Init: sem_open - Create an Existing sem (EEXIST)" );

  n_sem2 = sem_open("sem1", O_CREAT | O_EXCL, 00777, 1);

  fatal_posix_service_status(

    (int) n_sem2, (int ) SEM_FAILED, "sem_open error return status" );

  fatal_posix_service_status( errno, EEXIST,  "sem_open errno EEXIST");

  puts( "Init: sem_open - Open new sem without create flag (ENOENT)" );

  n_sem2 = sem_open("sem3", O_EXCL, 00777, 1);

  fatal_posix_service_status(

    (int) n_sem2, (int ) SEM_FAILED, "sem_open error return status" );

  fatal_posix_service_status( errno, ENOENT,  "sem_open errno EEXIST");

  /*

   * XXX - Could not hit the following errors:

   *   E_POSIX_Semaphore_Create_support only fails if

   *     ENOSYS - When semaphore is shared between processes.

   *     ENOSPC - When out of memory.

   */

  /*

   * Validate we can wait on a semaphore opened with sem_open.

   */

  puts( "Init: sem_wait on sem1" );

  status = sem_wait(n_sem1);

  fatal_posix_service_status( status, 0, "sem_wait opened semaphore");

  /*

   * Validate a second open returns the same semaphore.

   */

  puts( "Init: sem_open - Open an existing sem ( same id )" );

  n_sem2 = sem_open("sem1", 0 );

  fatal_posix_service_status(

    (int) n_sem2, (int ) n_sem1, "sem_open error return status" );

  /*

   * Unlink the semaphore, then verify an open of the same name produces a

   * different semaphore.

   */

  puts( "Init: sem_unlink - sem1 SUCCESSFUL" );

  status = sem_unlink( "sem1" );

  fatal_posix_service_status( status, 0, "sem_unlink locked semaphore");

  puts( "Init: sem_open - Reopen sem1 SUCCESSFUL with a different id" );

  n_sem2 = sem_open( "sem1", O_CREAT | O_EXCL, 00777, 1);

  assert( n_sem2 != SEM_FAILED );

  assert( n_sem2 != n_sem1 );

  /*

   * Validate we can call close on a semaphore opened with sem_open.

   */

  puts( "Init: sem_close (1) - SUCCESSFUL" );

  status = sem_close( n_sem1 );

  fatal_posix_service_status( status, 0, "sem_close semaphore");

  /*

   * Validate it n_sem2 (the last open for sem1 name can be

   * correctly closed and unlinked.

   */

  puts( "Init: sem_close (2) - SUCCESSFUL" );

  status = sem_close( n_sem2 );

  fatal_posix_service_status( status, 0, "sem_close semaphore");

  puts( "Init: sem_unlink - sem1 (2) SUCCESSFUL" );

  status = sem_unlink( "sem1" );

  fatal_posix_service_status( status, 0, "sem_unlink locked semaphore");

  puts( "Init: sem_close - UNSUCCESSFUL (EINVAL)" );

  status = sem_close(n_sem2);

  fatal_posix_service_status( status, -1, "sem_close error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_close errno EINVAL");

  puts( "Init: sem_unlink - UNSUCCESSFUL (ENOENT)" );

  status = sem_unlink("sem1");

  fatal_posix_service_status( status, -1, "sem_unlink error return status");

  fatal_posix_service_status( errno, ENOENT, "sem_close errno EINVAL");

  /*

   * Validate we can unlink (2)

   */

  puts( "Init: sem_unlink (NULL) - EINVAL" );

  status = sem_unlink( NULL );

  fatal_posix_service_status( status, -1, "sem_unlink error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_unlink errno value");

  puts( "Init: sem_unlink (\"\") - EINVAL" );

  status = sem_unlink( "" );

  fatal_posix_service_status( status, -1, "sem_unlink error return status");

  fatal_posix_service_status( errno, EINVAL, "sem_unlink errno value");

  /*

   * XXX - Cant' create location OBJECTS_ERROR or OBJECTS_REMOTE.

   *       sem_close and sem_unlink.

   */

  puts( "Init: sem_unlink - UNSUCCESSFUL (ENOENT)" );

  status = sem_unlink("sem2");

  fatal_posix_service_status( status, -1, "sem_unlink error return status");

  fatal_posix_service_status( errno, ENOENT, "sem_unlink errno ENOENT");

  assert( (status == -1) && (errno == ENOENT) );

  /* Try adding in unlinking before closing... (can we still open?) */

  puts( "*** POSIX SEMAPHORE MANAGER TEST 1 COMPLETED ***" );

  exit(0);

  return NULL; /* just so the compiler thinks we returned something */

}