1PTHREAD_ATTR_SETSCHEDPARAM(3L)inux Programmer's ManuPaTlHREAD_ATTR_SETSCHEDPARAM(3)
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6 pthread_attr_setschedparam, pthread_attr_getschedparam - set/get sched‐
7 uling parameter attributes in thread attributes object
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10 #include <pthread.h>
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12 int pthread_attr_setschedparam(pthread_attr_t *attr,
13 const struct sched_param *param);
14 int pthread_attr_getschedparam(pthread_attr_t *attr,
15 struct sched_param *param);
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17 Compile and link with -pthread.
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20 The pthread_attr_setschedparam() function sets the scheduling parameter
21 attributes of the thread attributes object referred to by attr to the
22 values specified in the buffer pointed to by param. These attributes
23 determine the scheduling parameters of a thread created using the
24 thread attributes object attr.
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26 The pthread_attr_getschedparam() returns the scheduling parameter
27 attributes of the thread attributes object attr in the buffer pointed
28 to by param.
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30 Scheduling parameters are maintained in the following structure:
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32 struct sched_param {
33 int sched_priority; /* Scheduling priority */
34 };
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36 As can be seen, only one scheduling parameter is supported. For
37 details of the permitted ranges for scheduling priorities in each
38 scheduling policy, see sched_setscheduler(2).
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41 On success, these functions return 0; on error, they return a nonzero
42 error number.
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45 POSIX.1 documents EINVAL and ENOTSUP errors for pthread_attr_setsched‐
46 param(). On Linux these functions always succeed (but portable and
47 future-proof applications should nevertheless handle a possible error
48 return).
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51 POSIX.1-2001.
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54 See pthread_setschedparam(3).
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57 See pthread_attr_setschedpolicy(3) for a list of the thread scheduling
58 policies supported on Linux.
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61 sched_get_priority_min(2), sched_setscheduler(2), pthread_attr_init(3),
62 pthread_attr_setinheritsched(3), pthread_attr_setschedpolicy(3),
63 pthread_create(3), pthread_setschedparam(3), pthread_setschedprio(3),
64 pthreads(7)
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67 This page is part of release 3.25 of the Linux man-pages project. A
68 description of the project, and information about reporting bugs, can
69 be found at http://www.kernel.org/doc/man-pages/.
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73Linux 2010-02-03 PTHREAD_ATTR_SETSCHEDPARAM(3)