Hardware Locality (hwloc) 2.9.2

plugins.h
1/*
2 * Copyright © 2013-2022 Inria. All rights reserved.
3 * Copyright © 2016 Cisco Systems, Inc. All rights reserved.
4 * See COPYING in top-level directory.
5 */
6
7#ifndef HWLOC_PLUGINS_H
8#define HWLOC_PLUGINS_H
9
14 struct hwloc_backend;
15
16#include "hwloc.h"
17
18#ifdef HWLOC_INSIDE_PLUGIN
19/* needed for hwloc_plugin_check_namespace() */
20#ifdef HWLOC_HAVE_LTDL
21#include <ltdl.h>
22#else
23#include <dlfcn.h>
24#endif
25#endif
26
27
28
41 struct hwloc_disc_component {
45 const char *name;
46
50 unsigned phases;
51
60 unsigned excluded_phases;
61
65 struct hwloc_backend * (*instantiate)(struct hwloc_topology *topology, struct hwloc_disc_component *component, unsigned excluded_phases, const void *data1, const void *data2, const void *data3);
66
79 unsigned priority;
80
84 unsigned enabled_by_default;
85
90 struct hwloc_disc_component * next;
91};
92
106 typedef enum hwloc_disc_phase_e {
111 HWLOC_DISC_PHASE_GLOBAL = (1U<<0),
112
115 HWLOC_DISC_PHASE_CPU = (1U<<1),
116
119 HWLOC_DISC_PHASE_MEMORY = (1U<<2),
120
123 HWLOC_DISC_PHASE_PCI = (1U<<3),
124
127 HWLOC_DISC_PHASE_IO = (1U<<4),
128
131 HWLOC_DISC_PHASE_MISC = (1U<<5),
132
135 HWLOC_DISC_PHASE_ANNOTATE = (1U<<6),
136
142 HWLOC_DISC_PHASE_TWEAK = (1U<<7)
143} hwloc_disc_phase_t;
144
146 enum hwloc_disc_status_flag_e {
148 HWLOC_DISC_STATUS_FLAG_GOT_ALLOWED_RESOURCES = (1UL<<1)
149};
150
156 struct hwloc_disc_status {
160 hwloc_disc_phase_t phase;
161
165 unsigned excluded_phases;
166
168 unsigned long flags;
169};
170
189 struct hwloc_backend {
191 struct hwloc_disc_component * component;
193 struct hwloc_topology * topology;
195 int envvar_forced;
197 struct hwloc_backend * next;
198
202 unsigned phases;
203
205 unsigned long flags;
206
213 int is_thissystem;
214
216 void * private_data;
220 void (*disable)(struct hwloc_backend *backend);
221
227 int (*discover)(struct hwloc_backend *backend, struct hwloc_disc_status *status);
228
233 int (*get_pci_busid_cpuset)(struct hwloc_backend *backend, struct hwloc_pcidev_attr_s *busid, hwloc_bitmap_t cpuset);
234};
235
239HWLOC_DECLSPEC struct hwloc_backend * hwloc_backend_alloc(struct hwloc_topology *topology, struct hwloc_disc_component *component);
240
242HWLOC_DECLSPEC int hwloc_backend_enable(struct hwloc_backend *backend);
243
257 typedef enum hwloc_component_type_e {
259 HWLOC_COMPONENT_TYPE_DISC,
260
262 HWLOC_COMPONENT_TYPE_XML
263} hwloc_component_type_t;
264
270 struct hwloc_component {
272 unsigned abi;
273
291 int (*init)(unsigned long flags);
292
304 void (*finalize)(unsigned long flags);
305
307 hwloc_component_type_t type;
308
310 unsigned long flags;
311
313 void * data;
314};
315
345HWLOC_DECLSPEC int hwloc_hide_errors(void);
346
347#define HWLOC_SHOW_CRITICAL_ERRORS() (hwloc_hide_errors() < 2)
348#define HWLOC_SHOW_ALL_ERRORS() (hwloc_hide_errors() == 0)
349
378HWLOC_DECLSPEC hwloc_obj_t
379 hwloc__insert_object_by_cpuset(struct hwloc_topology *topology, hwloc_obj_t root,
380 hwloc_obj_t obj, const char *reason);
381
398HWLOC_DECLSPEC void hwloc_insert_object_by_parent(struct hwloc_topology *topology, hwloc_obj_t parent, hwloc_obj_t obj);
399
404HWLOC_DECLSPEC hwloc_obj_t hwloc_alloc_setup_object(hwloc_topology_t topology, hwloc_obj_type_t type, unsigned os_index);
405
414HWLOC_DECLSPEC int hwloc_obj_add_children_sets(hwloc_obj_t obj);
415
423HWLOC_DECLSPEC int hwloc_topology_reconnect(hwloc_topology_t topology, unsigned long flags __hwloc_attribute_unused);
424
446 static __hwloc_inline int
447 hwloc_plugin_check_namespace(const char *pluginname __hwloc_attribute_unused, const char *symbol __hwloc_attribute_unused)
448{
449#ifdef HWLOC_INSIDE_PLUGIN
450 void *sym;
451#ifdef HWLOC_HAVE_LTDL
452 lt_dlhandle handle = lt_dlopen(NULL);
453#else
454 void *handle = dlopen(NULL, RTLD_NOW|RTLD_LOCAL);
455#endif
456 if (!handle)
457 /* cannot check, assume things will work */
458 return 0;
459#ifdef HWLOC_HAVE_LTDL
460 sym = lt_dlsym(handle, symbol);
461 lt_dlclose(handle);
462#else
463 sym = dlsym(handle, symbol);
464 dlclose(handle);
465#endif
466 if (!sym) {
467 static int verboseenv_checked = 0;
468 static int verboseenv_value = 0;
469 if (!verboseenv_checked) {
470 const char *verboseenv = getenv("HWLOC_PLUGINS_VERBOSE");
471 verboseenv_value = verboseenv ? atoi(verboseenv) : 0;
472 verboseenv_checked = 1;
473 }
474 if (verboseenv_value)
475 fprintf(stderr, "Plugin `%s' disabling itself because it cannot find the `%s' core symbol.\n",
476 pluginname, symbol);
477 return -1;
478 }
479#endif /* HWLOC_INSIDE_PLUGIN */
480 return 0;
481}
482
499 static __hwloc_inline int
500 hwloc_filter_check_pcidev_subtype_important(unsigned classid)
501{
502 unsigned baseclass = classid >> 8;
503 return (baseclass == 0x03 /* PCI_BASE_CLASS_DISPLAY */
504 || baseclass == 0x02 /* PCI_BASE_CLASS_NETWORK */
505 || baseclass == 0x01 /* PCI_BASE_CLASS_STORAGE */
506 || baseclass == 0x00 /* Unclassified, for Atos/Bull BXI */
507 || baseclass == 0x0b /* PCI_BASE_CLASS_PROCESSOR */
508 || classid == 0x0c04 /* PCI_CLASS_SERIAL_FIBER */
509 || classid == 0x0c06 /* PCI_CLASS_SERIAL_INFINIBAND */
510 || classid == 0x0502 /* PCI_CLASS_MEMORY_CXL */
511 || baseclass == 0x06 /* PCI_BASE_CLASS_BRIDGE with non-PCI downstream. the core will drop the useless ones later */
512 || baseclass == 0x12 /* Processing Accelerators */);
513}
514
519 static __hwloc_inline int
520 hwloc_filter_check_osdev_subtype_important(hwloc_obj_osdev_type_t subtype)
521{
522 return (subtype != HWLOC_OBJ_OSDEV_DMA);
523}
524
531 static __hwloc_inline int
532 hwloc_filter_check_keep_object_type(hwloc_topology_t topology, hwloc_obj_type_t type)
533{
534 enum hwloc_type_filter_e filter = HWLOC_TYPE_FILTER_KEEP_NONE;
535 hwloc_topology_get_type_filter(topology, type, &filter);
536 assert(filter != HWLOC_TYPE_FILTER_KEEP_IMPORTANT); /* IMPORTANT only used for I/O */
537 return filter == HWLOC_TYPE_FILTER_KEEP_NONE ? 0 : 1;
538}
539
544 static __hwloc_inline int
545 hwloc_filter_check_keep_object(hwloc_topology_t topology, hwloc_obj_t obj)
546{
547 hwloc_obj_type_t type = obj->type;
548 enum hwloc_type_filter_e filter = HWLOC_TYPE_FILTER_KEEP_NONE;
549 hwloc_topology_get_type_filter(topology, type, &filter);
550 if (filter == HWLOC_TYPE_FILTER_KEEP_NONE)
551 return 0;
552 if (filter == HWLOC_TYPE_FILTER_KEEP_IMPORTANT) {
553 if (type == HWLOC_OBJ_PCI_DEVICE)
554 return hwloc_filter_check_pcidev_subtype_important(obj->attr->pcidev.class_id);
555 if (type == HWLOC_OBJ_OS_DEVICE)
556 return hwloc_filter_check_osdev_subtype_important(obj->attr->osdev.type);
557 }
558 return 1;
559}
560
577HWLOC_DECLSPEC unsigned hwloc_pcidisc_find_cap(const unsigned char *config, unsigned cap);
578
584HWLOC_DECLSPEC int hwloc_pcidisc_find_linkspeed(const unsigned char *config, unsigned offset, float *linkspeed);
585
590HWLOC_DECLSPEC hwloc_obj_type_t hwloc_pcidisc_check_bridge_type(unsigned device_class, const unsigned char *config);
591
598HWLOC_DECLSPEC int hwloc_pcidisc_find_bridge_buses(unsigned domain, unsigned bus, unsigned dev, unsigned func,
599 unsigned *secondary_busp, unsigned *subordinate_busp,
600 const unsigned char *config);
601
606HWLOC_DECLSPEC void hwloc_pcidisc_tree_insert_by_busid(struct hwloc_obj **treep, struct hwloc_obj *obj);
607
613HWLOC_DECLSPEC int hwloc_pcidisc_tree_attach(struct hwloc_topology *topology, struct hwloc_obj *tree);
614
638HWLOC_DECLSPEC struct hwloc_obj * hwloc_pci_find_parent_by_busid(struct hwloc_topology *topology, unsigned domain, unsigned bus, unsigned dev, unsigned func);
639
646HWLOC_DECLSPEC struct hwloc_obj * hwloc_pci_find_by_busid(struct hwloc_topology *topology, unsigned domain, unsigned bus, unsigned dev, unsigned func);
647
649 typedef void * hwloc_backend_distances_add_handle_t;
650
657HWLOC_DECLSPEC hwloc_backend_distances_add_handle_t
658 hwloc_backend_distances_add_create(hwloc_topology_t topology,
659 const char *name, unsigned long kind,
660 unsigned long flags);
661
673HWLOC_DECLSPEC int
674 hwloc_backend_distances_add_values(hwloc_topology_t topology,
675 hwloc_backend_distances_add_handle_t handle,
676 unsigned nbobjs, hwloc_obj_t *objs,
677 hwloc_uint64_t *values,
678 unsigned long flags);
679
686HWLOC_DECLSPEC int
687 hwloc_backend_distances_add_commit(hwloc_topology_t topology,
688 hwloc_backend_distances_add_handle_t handle,
689 unsigned long flags);
690
696#endif /* HWLOC_PLUGINS_H */
hwloc_obj_osdev_type_t
enum hwloc_obj_osdev_type_e hwloc_obj_osdev_type_t
Type of a OS device.
hwloc_obj_type_t
hwloc_obj_type_t
Type of topology object.
Definition: hwloc.h:197
HWLOC_OBJ_OSDEV_DMA
@ HWLOC_OBJ_OSDEV_DMA
Operating system dma engine device. For instance the "dma0chan0" DMA channel on Linux.
Definition: hwloc.h:372
HWLOC_OBJ_OS_DEVICE
@ HWLOC_OBJ_OS_DEVICE
Operating system device (filtered out by default).
Definition: hwloc.h:300
HWLOC_OBJ_PCI_DEVICE
@ HWLOC_OBJ_PCI_DEVICE
PCI device (filtered out by default).
Definition: hwloc.h:290
hwloc_topology_t
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition: hwloc.h:716
hwloc_topology_get_type_filter
int hwloc_topology_get_type_filter(hwloc_topology_t topology, hwloc_obj_type_t type, enum hwloc_type_filter_e *filter)
Get the current filtering for the given object type.
hwloc_type_filter_e
hwloc_type_filter_e
Type filtering flags.
Definition: hwloc.h:2365
HWLOC_TYPE_FILTER_KEEP_NONE
@ HWLOC_TYPE_FILTER_KEEP_NONE
Ignore all objects of this type.
Definition: hwloc.h:2379
HWLOC_TYPE_FILTER_KEEP_IMPORTANT
@ HWLOC_TYPE_FILTER_KEEP_IMPORTANT
Only keep likely-important objects of the given type.
Definition: hwloc.h:2408
hwloc_bitmap_t
struct hwloc_bitmap_s * hwloc_bitmap_t
Set of bits represented as an opaque pointer to an internal bitmap.
Definition: bitmap.h:69
hwloc_backend_enable
int hwloc_backend_enable(struct hwloc_backend *backend)
Enable a previously allocated and setup backend.
hwloc_disc_phase_t
enum hwloc_disc_phase_e hwloc_disc_phase_t
Discovery phase.
hwloc_backend_alloc
struct hwloc_backend * hwloc_backend_alloc(struct hwloc_topology *topology, struct hwloc_disc_component *component)
Allocate a backend structure, set good default values, initialize backend->component and topology,...
hwloc_disc_phase_e
hwloc_disc_phase_e
Discovery phase.
Definition: plugins.h:106
hwloc_disc_status_flag_e
hwloc_disc_status_flag_e
Discovery status flags.
Definition: plugins.h:146
HWLOC_DISC_PHASE_CPU
@ HWLOC_DISC_PHASE_CPU
CPU discovery.
Definition: plugins.h:115
HWLOC_DISC_PHASE_PCI
@ HWLOC_DISC_PHASE_PCI
Attach PCI devices and bridges to existing CPU objects.
Definition: plugins.h:123
HWLOC_DISC_PHASE_ANNOTATE
@ HWLOC_DISC_PHASE_ANNOTATE
Annotating existing objects, adding distances, etc.
Definition: plugins.h:135
HWLOC_DISC_PHASE_MISC
@ HWLOC_DISC_PHASE_MISC
Misc objects that gets added below anything else.
Definition: plugins.h:131
HWLOC_DISC_PHASE_IO
@ HWLOC_DISC_PHASE_IO
I/O discovery that requires PCI devices (OS devices such as OpenCL, CUDA, etc.).
Definition: plugins.h:127
HWLOC_DISC_PHASE_GLOBAL
@ HWLOC_DISC_PHASE_GLOBAL
xml or synthetic, platform-specific components such as bgq. Discovers everything including CPU,...
Definition: plugins.h:111
HWLOC_DISC_PHASE_MEMORY
@ HWLOC_DISC_PHASE_MEMORY
Attach memory to existing CPU objects.
Definition: plugins.h:119
HWLOC_DISC_PHASE_TWEAK
@ HWLOC_DISC_PHASE_TWEAK
Final tweaks to a ready-to-use topology. This phase runs once the topology is loaded,...
Definition: plugins.h:142
HWLOC_DISC_STATUS_FLAG_GOT_ALLOWED_RESOURCES
@ HWLOC_DISC_STATUS_FLAG_GOT_ALLOWED_RESOURCES
The sets of allowed resources were already retrieved.
Definition: plugins.h:148
hwloc_component_type_t
enum hwloc_component_type_e hwloc_component_type_t
Generic component type.
hwloc_component_type_e
hwloc_component_type_e
Generic component type.
Definition: plugins.h:257
HWLOC_COMPONENT_TYPE_DISC
@ HWLOC_COMPONENT_TYPE_DISC
The data field must point to a struct hwloc_disc_component.
Definition: plugins.h:259
HWLOC_COMPONENT_TYPE_XML
@ HWLOC_COMPONENT_TYPE_XML
The data field must point to a struct hwloc_xml_component.
Definition: plugins.h:262
hwloc_alloc_setup_object
hwloc_obj_t hwloc_alloc_setup_object(hwloc_topology_t topology, hwloc_obj_type_t type, unsigned os_index)
Allocate and initialize an object of the given type and physical index.
hwloc_insert_object_by_parent
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.
hwloc_topology_reconnect
int hwloc_topology_reconnect(hwloc_topology_t topology, unsigned long flags)
Request a reconnection of children and levels in the topology.
hwloc__insert_object_by_cpuset
hwloc_obj_t hwloc__insert_object_by_cpuset(struct hwloc_topology *topology, hwloc_obj_t root, hwloc_obj_t obj, const char *reason)
Add an object to the topology.
hwloc_obj_add_children_sets
int hwloc_obj_add_children_sets(hwloc_obj_t obj)
Setup object cpusets/nodesets by OR'ing its children.
hwloc_hide_errors
int hwloc_hide_errors(void)
Check whether error messages are hidden.
hwloc_plugin_check_namespace
static int hwloc_plugin_check_namespace(const char *pluginname, const char *symbol)
Make sure that plugins can lookup core symbols.
Definition: plugins.h:447
hwloc_filter_check_keep_object_type
static int hwloc_filter_check_keep_object_type(hwloc_topology_t topology, hwloc_obj_type_t type)
Check whether a non-I/O object type should be filtered-out.
Definition: plugins.h:532
hwloc_filter_check_keep_object
static int hwloc_filter_check_keep_object(hwloc_topology_t topology, hwloc_obj_t obj)
Check whether the given object should be filtered-out.
Definition: plugins.h:545
hwloc_filter_check_pcidev_subtype_important
static int hwloc_filter_check_pcidev_subtype_important(unsigned classid)
Check whether the given PCI device classid is important.
Definition: plugins.h:500
hwloc_filter_check_osdev_subtype_important
static int hwloc_filter_check_osdev_subtype_important(hwloc_obj_osdev_type_t subtype)
Check whether the given OS device subtype is important.
Definition: plugins.h:520
hwloc_pcidisc_find_linkspeed
int hwloc_pcidisc_find_linkspeed(const unsigned char *config, unsigned offset, float *linkspeed)
Fill linkspeed by reading the PCI config space where PCI_CAP_ID_EXP is at position offset.
hwloc_pcidisc_check_bridge_type
hwloc_obj_type_t hwloc_pcidisc_check_bridge_type(unsigned device_class, const unsigned char *config)
Return the hwloc object type (PCI device or Bridge) for the given class and configuration space.
hwloc_pcidisc_find_cap
unsigned hwloc_pcidisc_find_cap(const unsigned char *config, unsigned cap)
Return the offset of the given capability in the PCI config space buffer.
hwloc_pcidisc_find_bridge_buses
int hwloc_pcidisc_find_bridge_buses(unsigned domain, unsigned bus, unsigned dev, unsigned func, unsigned *secondary_busp, unsigned *subordinate_busp, const unsigned char *config)
Fills the attributes of the given PCI bridge using the given PCI config space.
hwloc_pcidisc_tree_insert_by_busid
void hwloc_pcidisc_tree_insert_by_busid(struct hwloc_obj **treep, struct hwloc_obj *obj)
Insert a PCI object in the given PCI tree by looking at PCI bus IDs.
hwloc_pcidisc_tree_attach
int hwloc_pcidisc_tree_attach(struct hwloc_topology *topology, struct hwloc_obj *tree)
Add some hostbridges on top of the given tree of PCI objects and attach them to the topology.
hwloc_backend_distances_add_commit
int hwloc_backend_distances_add_commit(hwloc_topology_t topology, hwloc_backend_distances_add_handle_t handle, unsigned long flags)
Commit a new distances structure.
hwloc_pci_find_by_busid
struct hwloc_obj * hwloc_pci_find_by_busid(struct hwloc_topology *topology, unsigned domain, unsigned bus, unsigned dev, unsigned func)
Find the PCI device or bridge matching a PCI bus ID exactly.
hwloc_pci_find_parent_by_busid
struct hwloc_obj * hwloc_pci_find_parent_by_busid(struct hwloc_topology *topology, unsigned domain, unsigned bus, unsigned dev, unsigned func)
Find the object or a parent of a PCI bus ID.
hwloc_backend_distances_add_values
int hwloc_backend_distances_add_values(hwloc_topology_t topology, hwloc_backend_distances_add_handle_t handle, unsigned nbobjs, hwloc_obj_t *objs, hwloc_uint64_t *values, unsigned long flags)
Specify the objects and values in a new empty distances structure.
hwloc_backend_distances_add_create
hwloc_backend_distances_add_handle_t hwloc_backend_distances_add_create(hwloc_topology_t topology, const char *name, unsigned long kind, unsigned long flags)
Create a new empty distances structure.
hwloc_backend_distances_add_handle_t
void * hwloc_backend_distances_add_handle_t
Handle to a new distances structure during its addition to the topology.
Definition: plugins.h:649
hwloc_obj
Structure of a topology object.
Definition: hwloc.h:420
hwloc_obj::name
char * name
Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...
Definition: hwloc.h:432
hwloc_obj::type
hwloc_obj_type_t type
Type of object.
Definition: hwloc.h:422
hwloc_obj::attr
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found.
Definition: hwloc.h:439
hwloc_obj_attr_u::pcidev
struct hwloc_obj_attr_u::hwloc_pcidev_attr_s pcidev
hwloc_obj_attr_u::osdev
struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev
hwloc_obj_attr_u::hwloc_pcidev_attr_s::class_id
unsigned short class_id
Definition: hwloc.h:664
hwloc_obj_attr_u::hwloc_osdev_attr_s::type
hwloc_obj_osdev_type_t type
Definition: hwloc.h:690
hwloc_disc_component
Discovery component structure.
Definition: plugins.h:41
hwloc_disc_component::name
const char * name
Name. If this component is built as a plugin, this name does not have to match the plugin filename.
Definition: plugins.h:45
hwloc_disc_component::phases
unsigned phases
Discovery phases performed by this component. OR'ed set of hwloc_disc_phase_t.
Definition: plugins.h:50
hwloc_disc_component::excluded_phases
unsigned excluded_phases
Component phases to exclude, as an OR'ed set of hwloc_disc_phase_t.
Definition: plugins.h:60
hwloc_disc_component::enabled_by_default
unsigned enabled_by_default
Enabled by default. If unset, if will be disabled unless explicitly requested.
Definition: plugins.h:84
hwloc_disc_component::priority
unsigned priority
Component priority. Used to sort topology->components, higher priority first. Also used to decide bet...
Definition: plugins.h:79
hwloc_disc_status
Discovery status structure.
Definition: plugins.h:156
hwloc_disc_status::excluded_phases
unsigned excluded_phases
Dynamically excluded phases. If a component decides during discovery that some phases are no longer n...
Definition: plugins.h:165
hwloc_disc_status::phase
hwloc_disc_phase_t phase
The current discovery phase that is performed. Must match one of the phases in the component phases f...
Definition: plugins.h:160
hwloc_disc_status::flags
unsigned long flags
OR'ed set of hwloc_disc_status_flag_e.
Definition: plugins.h:168
hwloc_backend
Discovery backend structure.
Definition: plugins.h:189
hwloc_backend::private_data
void * private_data
Backend private data, or NULL if none.
Definition: plugins.h:216
hwloc_backend::disable
void(* disable)(struct hwloc_backend *backend)
Callback for freeing the private_data. May be NULL.
Definition: plugins.h:220
hwloc_backend::flags
unsigned long flags
Backend flags, currently always 0.
Definition: plugins.h:205
hwloc_backend::get_pci_busid_cpuset
int(* get_pci_busid_cpuset)(struct hwloc_backend *backend, struct hwloc_pcidev_attr_s *busid, hwloc_bitmap_t cpuset)
Callback to retrieve the locality of a PCI object. Called by the PCI core when attaching PCI hierarch...
Definition: plugins.h:233
hwloc_backend::is_thissystem
int is_thissystem
Backend-specific 'is_thissystem' property. Set to 0 if the backend disables the thissystem flag for t...
Definition: plugins.h:213
hwloc_backend::discover
int(* discover)(struct hwloc_backend *backend, struct hwloc_disc_status *status)
Main discovery callback. returns -1 on error, either because it couldn't add its objects ot the exist...
Definition: plugins.h:227
hwloc_backend::phases
unsigned phases
Discovery phases performed by this component, possibly without some of them if excluded by other comp...
Definition: plugins.h:202
hwloc_component
Generic component structure.
Definition: plugins.h:270
hwloc_component::abi
unsigned abi
Component ABI version, set to HWLOC_COMPONENT_ABI.
Definition: plugins.h:272
hwloc_component::finalize
void(* finalize)(unsigned long flags)
Process-wide component termination callback.
Definition: plugins.h:304
hwloc_component::data
void * data
Component data, pointing to a struct hwloc_disc_component or struct hwloc_xml_component.
Definition: plugins.h:313
hwloc_component::type
hwloc_component_type_t type
Component type.
Definition: plugins.h:307
hwloc_component::flags
unsigned long flags
Component flags, unused for now.
Definition: plugins.h:310
hwloc_component::init
int(* init)(unsigned long flags)
Process-wide component initialization callback.
Definition: plugins.h:291