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kernel
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sysdeps
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nptl
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timer_routines.h

timer_routines.h 2.1 KB
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  1. /* Helper code for POSIX timer implementation on NPTL.
    2. 

  2.    Copyright (C) 2000-2026 Free Software Foundation, Inc.
    3. 

  3.    This file is part of the GNU C Library.
    4. 

  4. 

  5.    The GNU C Library is free software; you can redistribute it and/or
    6. 

  6.    modify it under the terms of the GNU Lesser General Public License as
    7. 

  7.    published by the Free Software Foundation; either version 2.1 of the
    8. 

  8.    License, or (at your option) any later version.
    9. 

  9. 

  10.    The GNU C Library is distributed in the hope that it will be useful,
    11. 

  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13. 

  13.    Lesser General Public License for more details.
    14. 

  14. 

  15.    You should have received a copy of the GNU Lesser General Public
    16. 

  16.    License along with the GNU C Library; see the file COPYING.LIB.  If
    17. 

  17.    not, see <https://www.gnu.org/licenses/>.  */
    18. 

  18. 

  19. #ifndef _TIMER_ROUTINES_H
    20. 

  20. #define _TIMER_ROUTINES_H	1
    21. 

  21. 

  22. #include <internaltypes.h>
    23. 

  23. #include <string.h>
    24. 

  24. 

  25. /* Compare two pthread_attr_t thread attributes for exact equality.
    26. 

  26.    Returns 1 if they are equal, otherwise zero if they are not equal
    27. 

  27.    or contain illegal values.  This version is NPTL-specific for
    28. 

  28.    performance reason.  One could use the access functions to get the
    29. 

  29.    values of all the fields of the attribute structure.  */
    30. 

  30. static inline int
    31. 

  31. thread_attr_compare (const pthread_attr_t *left, const pthread_attr_t *right)
    32. 

  32. {
    33. 

  33.   struct pthread_attr *ileft = (struct pthread_attr *) left;
    34. 

  34.   struct pthread_attr *iright = (struct pthread_attr *) right;
    35. 

  35. 

  36.   return (ileft->flags == iright->flags
    37. 

  37. 	  && ileft->schedpolicy == iright->schedpolicy
    38. 

  38. 	  && (ileft->schedparam.sched_priority
    39. 

  39. 	      == iright->schedparam.sched_priority)
    40. 

  40. 	  && ileft->guardsize == iright->guardsize
    41. 

  41. 	  && ileft->stackaddr == iright->stackaddr
    42. 

  42. 	  && ileft->stacksize == iright->stacksize
    43. 

  43. 	  && ((ileft->cpuset == NULL && iright->cpuset == NULL)
    44. 

  44. 	      || (ileft->cpuset != NULL && iright->cpuset != NULL
    45. 

  45. 		  && ileft->cpusetsize == iright->cpusetsize
    46. 

  46. 		  && memcmp (ileft->cpuset, iright->cpuset,
    47. 

  47. 			     ileft->cpusetsize) == 0)));
    48. 

  48. }
    49. 

  49. 

  50. #endif	/* timer_routines.h */
    51.