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 SCHED_GETSCHEDULER 3C "Apr 1, 2008"
 NAME
sched_getscheduler - get scheduling policy

 SYNOPSIS


#include <sched.h>

int sched_getscheduler(pid_t pid);




 DESCRIPTION

The sched_getscheduler() function returns the scheduling policy of the
process specified by pid. If the value of pid is negative, the
behavior of the sched_getscheduler() function is unspecified.


The values that can be returned by sched_getscheduler() are defined in
the header <sched.h> and described on the sched_setscheduler(3C)
manual page.


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


If pid is 0, the scheduling policy will be returned for the calling
process.

 RETURN VALUES

Upon successful completion, the sched_getscheduler() function returns the
scheduling policy of the specified process. If unsuccessful, the function
returns -1 and sets errno to indicate the error.

 ERRORS

The sched_getscheduler() function will fail if:
EPERM


The requesting process does not have permission to determine the scheduling
policy of the specified process.



ESRCH


No process can be found corresponding to that specified by pid.




 ATTRIBUTES

See attributes(7) for descriptions of the following attributes:






ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Committed
MT-Level MT-Safe
Standard See standards(7).



 SEE ALSO

 sched_getparam (3C),  sched_setparam (3C),  sched_setscheduler (3C),  sched.h (3HEAD),  librt (3LIB),  attributes (7),  standards (7)