pthread_yield(3)

1PTHREAD_YIELD(3)           Linux Programmer's Manual          PTHREAD_YIELD(3)
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NAME

6       pthread_yield - yield the processor
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SYNOPSIS

9       #define _GNU_SOURCE             /* See feature_test_macros(7) */
10       #include <pthread.h>
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12       int pthread_yield(void);
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14       Compile and link with -pthread.
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DESCRIPTION

17       pthread_yield()  causes  the calling thread to relinquish the CPU.  The
18       thread is placed at the end of the run queue for  its  static  priority
19       and  another  thread  is  scheduled  to  run.  For further details, see
20       sched_yield(2)
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RETURN VALUE

23       On success, pthread_yield() returns 0; on error, it  returns  an  error
24       number.
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ERRORS

27       On  Linux, this call always succeeds (but portable and future-proof ap‐
28       plications should nevertheless handle a possible error return).
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ATTRIBUTES

31       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
32       tributes(7).
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34       ┌────────────────┬───────────────┬─────────┐
35       │Interface       │ Attribute     │ Value   │
36       ├────────────────┼───────────────┼─────────┤
37       │pthread_yield() │ Thread safety │ MT-Safe │
38       └────────────────┴───────────────┴─────────┘

CONFORMING TO

40       This  call  is  nonstandard, but present on several other systems.  Use
41       the standardized sched_yield(2) instead.
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NOTES

44       On Linux, this function is implemented as a call to sched_yield(2).
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46       pthread_yield() is intended for use with real-time scheduling  policies
47       (i.e.,  SCHED_FIFO or SCHED_RR).  Use of pthread_yield() with nondeter‐
48       ministic scheduling policies such as  SCHED_OTHER  is  unspecified  and
49       very likely means your application design is broken.
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COLOPHON

55       This  page  is  part of release 5.10 of the Linux man-pages project.  A
56       description of the project, information about reporting bugs,  and  the
57       latest     version     of     this    page,    can    be    found    at
58       https://www.kernel.org/doc/man-pages/.
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62Linux                             2017-11-26                  PTHREAD_YIELD(3)