pthread_attr_getschedpolicy.c 1.9 KB

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  1. /*
  2. * pthread_attr_getschedpolicy.c
  3. *
  4. * Description:
  5. * POSIX thread functions that deal with thread scheduling.
  6. *
  7. * --------------------------------------------------------------------------
  8. *
  9. * Pthreads-win32 - POSIX Threads Library for Win32
  10. * Copyright(C) 1998 John E. Bossom
  11. * Copyright(C) 1999,2005 Pthreads-win32 contributors
  12. *
  13. * Contact Email: [email protected]
  14. *
  15. * The current list of contributors is contained
  16. * in the file CONTRIBUTORS included with the source
  17. * code distribution. The list can also be seen at the
  18. * following World Wide Web location:
  19. * http://sources.redhat.com/pthreads-win32/contributors.html
  20. *
  21. * This library is free software; you can redistribute it and/or
  22. * modify it under the terms of the GNU Lesser General Public
  23. * License as published by the Free Software Foundation; either
  24. * version 2 of the License, or (at your option) any later version.
  25. *
  26. * This library is distributed in the hope that it will be useful,
  27. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  29. * Lesser General Public License for more details.
  30. *
  31. * You should have received a copy of the GNU Lesser General Public
  32. * License along with this library in the file COPYING.LIB;
  33. * if not, write to the Free Software Foundation, Inc.,
  34. * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  35. */
  36. #include "pthread.h"
  37. #include "implement.h"
  38. #include "sched.h"
  39. int
  40. pthread_attr_getschedpolicy (const pthread_attr_t * attr, int *policy)
  41. {
  42. if (ptw32_is_attr (attr) != 0 || policy == NULL)
  43. {
  44. return EINVAL;
  45. }
  46. /*
  47. * Validate the policy arg.
  48. * Check that a policy constant wasn't passed rather than &policy.
  49. */
  50. if (policy <= (int *) SCHED_MAX)
  51. {
  52. return EINVAL;
  53. }
  54. *policy = SCHED_OTHER;
  55. return 0;
  56. }