Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

pthread_attr_getschedparam(3) [netbsd man page]


pthread_attr_getschedparam -- get and set scheduling attributes LIBRARY
POSIX Threads Library (libpthread, -lpthread) SYNOPSIS
#include <pthread.h> int pthread_attr_getschedparam(const pthread_attr_t * restrict attr, struct sched_param * restrict param); int pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param); 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 pthread_attr_getschedparam() and pthread_attr_setschedparam() functions obtain and set the scheduling parameter attribute in the attr object. The sched_param structure is defined in <sched.h>. At minimum this structure contains only a single member, sched_priority. Refer to pthread_schedparam(3) and sched(3) for additional details. The pthread_attr_getschedpolicy() and pthread_attr_setschedpolicy() functions get and set the scheduling policy attribute, policy, in the attr object. The supported values of policy are the same ones listed in pthread_schedparam(3). RETURN VALUES
If successful, all described functions return 0. Otherwise, an error number is returned to indicate the error. ERRORS
The pthread_attr_getschedparam() function may fail if: [EINVAL] An invalid parameter was specified. The pthread_attr_setschedparam() function may fail if: [EINVAL] An invalid parameter was specified. [ENOMEM] There was insufficient memory. The pthread_attr_setschedpolicy() function may fail if: [ENOMEM] There was insufficient memory. [ENOTSUP] An unsupported policy was specified. No errors are defined for pthread_attr_getschedpolicy(). SEE ALSO
pthread_attr(3), pthread_schedparam(3), sched(3) STANDARDS
These functions conform to IEEE Std 1003.1-2008 (``POSIX.1''). BSD
July 7, 2010 BSD

Check Out this Related Man Page

pthread_attr_getschedparam(3C)											    pthread_attr_getschedparam(3C)

pthread_attr_getschedparam, pthread_attr_setschedparam - get or set schedparam attribute SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ] #include <pthread.h> int pthread_attr_getschedparam(const pthread_attr_t *restrict attr, struct sched_param *restrict param); int pthread_attr_setschedparam(pthread_attr_t *restrict attr, const struct sched_param *restrict param); The functions pthread_attr_setschedparam() and pthread_attr_getschedparam(), respectively, set and get the scheduling parameter attributes in the attr argument. The contents of the param structure are defined in <sched.h>. For the SCHED_FIFO and SCHED_RR policies, the only required member of param is sched_priority. If successful, the pthread_attr_setschedparam() and pthread_attr_getschedparam() functions return 0. Otherwise, an error number is returned to indicate the error. The pthread_attr_setschedparam() function may fail if: EINVAL attr is invalid. The pthread_attr_getschedparam() function may fail if: EINVAL attr or param 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. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ pthread_attr_init(3C), pthread_attr_setscope(3C), pthread_attr_setinheritsched(3C), pthread_attr_setschedpolicy(3C), pthread_create(3C), pthread_setschedparam(3C), attributes(5), standards(5) 23 Mar 2005 pthread_attr_getschedparam(3C)
Man Page