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nsg_set(3)


NAME

  nsg_set - Set NUMA Scheduling Group owner and permissions (libnuma library)


SYNOPSIS

  #include <numa.h>

  int nsg_set(
	  nsgid_t nsg,
	  nsgid_ds_t *attrib );


PARAMETERS

  nsg Specifies the NUMA Scheduling Group (NSG).

  attrib
      Points to a structure containing owner and permission attributes.


DESCRIPTION

  The nsg_set() function sets the NSG owner IDs (user ID and group ID) and
  permissions (mode) by using the nsgid_ds structure pointed to by attrib.


RESTRICTIONS

  The effective user ID of the calling process must be equal to the value of
  nsg_perm.cuid or nsg_perm.uid in the associated nsgid_ds structure, or the
  calling process must have write permissions to the NSG.


RETURN VALUES

  0   Success. In this case, nsg_set() set the NSG owner IDs and permissions
      as specified.

  -1  Failure. In this case, errno is set to indicate the error.


ERRORS

  If the nsg_set() function fails, it sets errno to one of the following
  values for the specified condition:

  [EACCES]
      The calling process does not have write permission.

  [EFAULT]
      The attrib argument specifies an invalid address.

  [EINVAL]
      The nsg argument does not specify a valid NSG ID.


SEE ALSO

  Functions: nsg_attach_pid(3), nsg_init(3), numa_intro(3)

  Files: numa_types(4)

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