1PTHREAD_SETSCHEDPRIO(3) Linux Programmer's Manual PTHREAD_SETSCHEDPRIO(3)
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6 pthread_setschedprio - set scheduling priority of a thread
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9 #include <pthread.h>
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11 int pthread_setschedprio(pthread_t thread, int prio);
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13 Compile and link with -pthread.
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16 The pthread_setschedprio() function sets the scheduling priority of the
17 thread thread to the value specified in prio. (By contrast
18 pthread_setschedparam(3) changes both the scheduling policy and prior‐
19 ity of a thread.)
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22 On success, this function returns 0; on error, it returns a nonzero er‐
23 ror number. If pthread_setschedprio() fails, the scheduling priority
24 of thread is not changed.
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27 EINVAL prio is not valid for the scheduling policy of the specified
28 thread.
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30 EPERM The caller does not have appropriate privileges to set the spec‐
31 ified priority.
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33 ESRCH No thread with the ID thread could be found.
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35 POSIX.1 also documents an ENOTSUP ("attempt was made to set the prior‐
36 ity to an unsupported value") error for pthread_setschedparam(3).
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39 This function is available in glibc since version 2.3.4.
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42 For an explanation of the terms used in this section, see at‐
43 tributes(7).
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45 ┌───────────────────────┬───────────────┬─────────┐
46 │Interface │ Attribute │ Value │
47 ├───────────────────────┼───────────────┼─────────┤
48 │pthread_setschedprio() │ Thread safety │ MT-Safe │
49 └───────────────────────┴───────────────┴─────────┘
51 POSIX.1-2001, POSIX.1-2008.
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54 For a description of the permissions required to, and the effect of,
55 changing a thread's scheduling priority, and details of the permitted
56 ranges for priorities in each scheduling policy, see sched(7).
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59 getrlimit(2), sched_get_priority_min(2), pthread_attr_init(3),
60 pthread_attr_setinheritsched(3), pthread_attr_setschedparam(3),
61 pthread_attr_setschedpolicy(3), pthread_create(3), pthread_self(3),
62 pthread_setschedparam(3), pthreads(7), sched(7)
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65 This page is part of release 5.10 of the Linux man-pages project. A
66 description of the project, information about reporting bugs, and the
67 latest version of this page, can be found at
68 https://www.kernel.org/doc/man-pages/.
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72Linux 2015-08-08 PTHREAD_SETSCHEDPRIO(3)