Core functions to be used by components

Typedefs
typedef void(*	hwloc_report_error_t )(const char *msg, int line)

Functions
HWLOC_DECLSPEC struct hwloc_obj *	hwloc_insert_object_by_cpuset (struct hwloc_topology *topology, hwloc_obj_t obj)
HWLOC_DECLSPEC void	hwloc_report_os_error (const char *msg, int line)
HWLOC_DECLSPEC int	hwloc_hide_errors (void)
HWLOC_DECLSPEC struct hwloc_obj *	hwloc__insert_object_by_cpuset (struct hwloc_topology *topology, hwloc_obj_t obj, hwloc_report_error_t report_error)
HWLOC_DECLSPEC void	hwloc_insert_object_by_parent (struct hwloc_topology *topology, hwloc_obj_t parent, hwloc_obj_t obj)
static __hwloc_inline struct hwloc_obj *	hwloc_alloc_setup_object (hwloc_obj_type_t type, signed os_index)

Detailed Description

Typedef Documentation

typedef void(* hwloc_report_error_t)(const char *msg, int line)

Type of error callbacks during object insertion.

Function Documentation

HWLOC_DECLSPEC struct hwloc_obj* hwloc__insert_object_by_cpuset	(	struct hwloc_topology *	topology,
		hwloc_obj_t	obj,
		hwloc_report_error_t	report_error
	)

Add an object to the topology and specify which error callback to use.

Aside from the error callback selection, this function is identical to hwloc_insert_object_by_cpuset()

static __hwloc_inline struct hwloc_obj* hwloc_alloc_setup_object ( hwloc_obj_type_t  type, signed  os_index  )

static

Allocate and initialize an object of the given type and physical index.

HWLOC_DECLSPEC int hwloc_hide_errors

(

void

)

Check whether insertion errors are hidden.

HWLOC_DECLSPEC struct hwloc_obj* hwloc_insert_object_by_cpuset	(	struct hwloc_topology *	topology,
		hwloc_obj_t	obj
	)

Add an object to the topology.

It is sorted along the tree of other objects according to the inclusion of cpusets, to eventually be added as a child of the smallest object including this object.

If the cpuset is empty, the type of the object (and maybe some attributes) must be enough to find where to insert the object. This is especially true for NUMA nodes with memory and no CPUs.

The given object should not have children.

This shall only be called before levels are built.

In case of error, hwloc_report_os_error() is called.

Returns the object on success. Returns NULL and frees obj on error. Returns another object and frees obj if it was merged with an identical pre-existing object.

HWLOC_DECLSPEC void hwloc_insert_object_by_parent	(	struct hwloc_topology *	topology,
		hwloc_obj_t	parent,
		hwloc_obj_t	obj
	)

Insert an object somewhere in the topology.

It is added as the last child of the given parent. The cpuset is completely ignored, so strange objects such as I/O devices should preferably be inserted with this.

The given object may have children.

Remember to call topology_connect() afterwards to fix handy pointers.

HWLOC_DECLSPEC void hwloc_report_os_error	(	const char *	msg,
		int	line
	)

Report an insertion error from a backend.