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pthread_attr_getschedpolicy ()
  • >> pthread_attr_getschedpolicy (3) ( Solaris man: Библиотечные вызовы )
  • pthread_attr_getschedpolicy (3) ( FreeBSD man: Библиотечные вызовы )
  • pthread_attr_getschedpolicy (3) ( Linux man: Библиотечные вызовы )
  • pthread_attr_getschedpolicy (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    pthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get or set schedpolicy attribute
     
    

    SYNOPSIS

    cc -mt [ flag... ] file... -lpthread [ library... ]
    #include <pthread.h>
    
    int pthread_attr_getschedpolicy(const pthread_attr_t *restrict attr,
        int *restrict policy);
    

    int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);
    

     

    DESCRIPTION

    The functions pthread_attr_setschedpolicy() and pthread_attr_getschedpolicy(), respectively, set and get the schedpolicy attribute in the attr argument.

    Supported values of policy include SCHED_FIFO, SCHED_RR and SCHED_OTHER, which are defined by the header <sched.h>. When threads executing with the scheduling policy SCHED_FIFO or SCHED_RR are waiting on a mutex, they acquire the mutex in priority order when the mutex is unlocked.

    See sched.h(3HEAD) for a description of all defined policy values. Valid policy values can also be obtained from pthread_getschedparam(3C) and sched_getscheduler(3C).  

    RETURN VALUES

    If successful, the pthread_attr_setschedpolicy() and pthread_attr_getschedpolicy() functions return 0. Otherwise, an error number is returned to indicate the error.  

    ERRORS

    The pthread_attr_setschedpolicy() or pthread_attr_getschedpolicy() function may fail if:

    EINVAL

    attr or policy is invalid.

     

    USAGE

    After these attributes have been set, a thread can be created with the specified attributes using pthread_create(). Using these routines does not affect the current running thread.  

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityCommitted

    MT-Level

    Standard

     

    SEE ALSO

    pthread_attr_init(3C), pthread_attr_setscope(3C), pthread_attr_setinheritsched(3C), pthread_attr_setschedparam(3C), pthread_create(3C), pthread_getschedparam(3C), sched.h(3HEAD), sched_getscheduler(3C), attributes(5), standards(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    USAGE
    ATTRIBUTES
    SEE ALSO


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