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man:pthread_attr_getschedpolicy

PTHREAD_ATTR_SETSCHEDPOLICYLinux Programmer's MaPTHREAD_ATTR_SETSCHEDPOLICY(3)

NAME

     pthread_attr_setschedpolicy,   pthread_attr_getschedpolicy   -  set/get
     scheduling policy attribute in thread attributes object

SYNOPSIS

     #include <pthread.h>
     int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);
     int pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy);
     Compile and link with -pthread.

DESCRIPTION

     The pthread_attr_setschedpolicy() function sets the  scheduling  policy
     attribute  of  the  thread attributes object referred to by attr to the
     value specified in policy.  This attribute  determines  the  scheduling
     policy of a thread created using the thread attributes object attr.
     The   supported   values  for  policy  are  SCHED_FIFO,  SCHED_RR,  and
     SCHED_OTHER, with the semantics described in sched(7).
     The  pthread_attr_getschedpolicy()  returns   the   scheduling   policy
     attribute of the thread attributes object attr in the buffer pointed to
     by policy.
     In order for the policy setting made  by  pthread_attr_setschedpolicy()
     to  have  effect  when  calling  pthread_create(3), the caller must use
     pthread_attr_setinheritsched(3) to set the inherit-scheduler  attribute
     of the attributes object attr to PTHREAD_EXPLICIT_SCHED.

RETURN VALUE

     On  success,  these functions return 0; on error, they return a nonzero
     error number.

ERRORS

     pthread_attr_setschedpolicy() can fail with the following error:
     EINVAL Invalid value in policy.
     POSIX.1 also documents an optional ENOTSUP error ("attempt was made  to
     set  the attribute to an unsupported value") for pthread_attr_setsched-
     policy().

ATTRIBUTES

     For  an  explanation  of  the  terms  used   in   this   section,   see
     attributes(7).
     allbox;   lbw30   lb   lb   l   l   l.    Interface Attribute Value  T{
     pthread_attr_setschedpolicy(),            pthread_attr_getschedpolicy()
     T}   Thread safety  MT-Safe

CONFORMING TO

     POSIX.1-2001, POSIX.1-2008.

EXAMPLE

     See pthread_setschedparam(3).

SEE ALSO

     pthread_attr_init(3), pthread_attr_setinheritsched(3),
     pthread_attr_setschedparam(3), pthread_create(3),
     pthread_setschedparam(3), pthread_setschedprio(3), pthreads(7),
     sched(7)

COLOPHON

     This page is part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs, and the
     latest version of this page, can be found at
     https://www.kernel.org/doc/man-pages/.

Linux 2017-09-15 PTHREAD_ATTR_SETSCHEDPOLICY(3)

/data/webs/external/dokuwiki/data/pages/man/pthread_attr_getschedpolicy.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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