pthread_yield(3) — Linux manual page

pthread_yield(3)        Library Functions Manual        pthread_yield(3)

NAME

       pthread_yield - yield the processor

LIBRARY

       POSIX threads library (libpthread, -lpthread)

SYNOPSIS

       #define _GNU_SOURCE             /* See feature_test_macros(7) */
       #include <pthread.h>

       [[deprecated]] int pthread_yield(void);

DESCRIPTION

       Note: This function is deprecated; see below.

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

RETURN VALUE

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

ERRORS

       On Linux, this call always succeeds (but portable and future-
       proof applications should nevertheless handle a possible error
       return).

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           Attribute     Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ pthread_yield()                     │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

VERSIONS

       On Linux, this function is implemented as a call to
       sched_yield(2).

STANDARDS

       None.

HISTORY

       Deprecated since glibc 2.34.  Use the standardized sched_yield(2)
       instead.

NOTES

       pthread_yield() is intended for use with real-time scheduling
       policies (i.e., SCHED_FIFO or SCHED_RR).  Use of pthread_yield()
       with nondeterministic scheduling policies such as SCHED_OTHER is
       unspecified and very likely means your application design is
       broken.

SEE ALSO

       sched_yield(2), pthreads(7), sched(7)

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Linux man-pages 6.9.1          2024-05-02               pthread_yield(3)