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sched_getparam (3)
  • sched_getparam (2) ( FreeBSD man: Системные вызовы )
  • sched_getparam (2) ( Русские man: Системные вызовы )
  • sched_getparam (2) ( Linux man: Системные вызовы )
  • sched_getparam (3) ( Solaris man: Библиотечные вызовы )
  • >> sched_getparam (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    sched_getparam - get scheduling parameters (REALTIME)
     
    

    SYNOPSIS

    #include <sched.h>

    int sched_getparam(pid_t pid, struct sched_param *param);
     

    DESCRIPTION

    The sched_getparam() function shall return the scheduling parameters of a process specified by pid in the sched_param structure pointed to by param.

    If a process specified by pid exists, and if the calling process has permission, the scheduling parameters for the process whose process ID is equal to pid shall be returned.

    If pid is zero, the scheduling parameters for the calling process shall be returned. The behavior of the sched_getparam() function is unspecified if the value of pid is negative.  

    RETURN VALUE

    Upon successful completion, the sched_getparam() function shall return zero. If the call to sched_getparam() is unsuccessful, the function shall return a value of -1 and set errno to indicate the error.  

    ERRORS

    The sched_getparam() function shall fail if:

    EPERM
    The requesting process does not have permission to obtain the scheduling parameters of the specified process.
    ESRCH
    No process can be found corresponding to that specified by pid.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    None.  

    RATIONALE

    None.  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    sched_getscheduler() , sched_setparam() , sched_setscheduler() , the Base Definitions volume of IEEE Std 1003.1-2001, <sched.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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