numa_query_pid(3)numa_query_pid(3)NAMEnuma_query_pid - Returns NUMA-related information for the specified
process identifier (libnuma library)
SYNOPSIS
#include <numa.h>
int numa_query_pid(
pid_t pid,
numa_pid_info_t *npinfo );
PARAMETERS
Specifies a process identifier (pid) to detach from a RAD set Specifies
a pointer to the NUMA information associated with pid. See
sys/numa_types.h for more information.
DESCRIPTION
The numa_query_pid() function returns NUMA-related information about a
specified pid in the rpinfo structure, which contains the following
information:
typedef struct __numa_pid_info {
pid_t npinfo_pid; /* Process IDentifier */
radid_t npinfo_radid; /* Home RAD for rpinfo_pid */
nsgid_t npinfo_nsgid; /* rpinfo_pid NSG id (if any) */
u_long npinfo_attrib; /* rpinfo_pid associated
attributes */
u_long npinfo_pad[10]; /* future development */
} numa_pid_info_t;
/* rpinfo_attrib mask bits */
#define NPINFO_RAD_BIND 0x01 /* PID is bound to a RAD */
#define NPINFO_RAD_ATTACH 0x02 /* PID is attached to a RAD
*/
#define NPINFO_RAD_NO_INHERIT 0x04 /* PID children won't
inherit RAD */
#define NPINFO_NSG 0x08 /* PID is a member of an
NSG */
#define NPINFO_NSG_NO_INHERIT 0x10 /* PID children won't
inherit NSG */
RETURN VALUES
Success. Failure. In this case, errno is set to indicate the error.
ERRORS
If the numa_query_pid() function fails, it sets errno to one of the
following values for the specified condition: The process specified by
pid does not exist. The address for the parameter npinfo is invalid.
SEE ALSO
Functions: nsg_attach_pid(3), rad_attach_pid(3), rad_bind_pid(3)
Files: numa_types(4)numa_query_pid(3)
