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inlines.h
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/* * Copyright © 2009 CNRS * Copyright © 2009-2018 Inria. All rights reserved. * Copyright © 2009-2012 Université Bordeaux * Copyright © 2009-2010 Cisco Systems, Inc. All rights reserved. * See COPYING in top-level directory. */ /** * This file contains the inline code of functions declared in hwloc.h */ #ifndef HWLOC_INLINES_H #define HWLOC_INLINES_H #ifndef HWLOC_H #error Please include the main hwloc.h instead #endif #include <stdlib.h> #include <errno.h> #ifdef __cplusplus extern "C" { #endif static __hwloc_inline int hwloc_get_type_or_below_depth (hwloc_topology_t topology, hwloc_obj_type_t type) { int depth = hwloc_get_type_depth(topology, type); if (depth != HWLOC_TYPE_DEPTH_UNKNOWN) return depth; /* find the highest existing level with type order >= */ for(depth = hwloc_get_type_depth(topology, HWLOC_OBJ_PU); ; depth--) if (hwloc_compare_types(hwloc_get_depth_type(topology, depth), type) < 0) return depth+1; /* Shouldn't ever happen, as there is always a Machine level with lower order and known depth. */ /* abort(); */ } static __hwloc_inline int hwloc_get_type_or_above_depth (hwloc_topology_t topology, hwloc_obj_type_t type) { int depth = hwloc_get_type_depth(topology, type); if (depth != HWLOC_TYPE_DEPTH_UNKNOWN) return depth; /* find the lowest existing level with type order <= */ for(depth = 0; ; depth++) if (hwloc_compare_types(hwloc_get_depth_type(topology, depth), type) > 0) return depth-1; /* Shouldn't ever happen, as there is always a PU level with higher order and known depth. */ /* abort(); */ } static __hwloc_inline int hwloc_get_nbobjs_by_type (hwloc_topology_t topology, hwloc_obj_type_t type) { int depth = hwloc_get_type_depth(topology, type); if (depth == HWLOC_TYPE_DEPTH_UNKNOWN) return 0; if (depth == HWLOC_TYPE_DEPTH_MULTIPLE) return -1; /* FIXME: agregate nbobjs from different levels? */ return (int) hwloc_get_nbobjs_by_depth(topology, depth); } static __hwloc_inline hwloc_obj_t hwloc_get_obj_by_type (hwloc_topology_t topology, hwloc_obj_type_t type, unsigned idx) { int depth = hwloc_get_type_depth(topology, type); if (depth == HWLOC_TYPE_DEPTH_UNKNOWN) return NULL; if (depth == HWLOC_TYPE_DEPTH_MULTIPLE) return NULL; return hwloc_get_obj_by_depth(topology, depth, idx); } static __hwloc_inline hwloc_obj_t hwloc_get_next_obj_by_depth (hwloc_topology_t topology, int depth, hwloc_obj_t prev) { if (!prev) return hwloc_get_obj_by_depth (topology, depth, 0); if (prev->depth != depth) return NULL; return prev->next_cousin; } static __hwloc_inline hwloc_obj_t hwloc_get_next_obj_by_type (hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t prev) { int depth = hwloc_get_type_depth(topology, type); if (depth == HWLOC_TYPE_DEPTH_UNKNOWN || depth == HWLOC_TYPE_DEPTH_MULTIPLE) return NULL; return hwloc_get_next_obj_by_depth (topology, depth, prev); } static __hwloc_inline hwloc_obj_t hwloc_get_root_obj (hwloc_topology_t topology) { return hwloc_get_obj_by_depth (topology, 0, 0); } static __hwloc_inline const char * hwloc_obj_get_info_by_name(hwloc_obj_t obj, const char *name) { unsigned i; for(i=0; i<obj->infos_count; i++) { struct hwloc_info_s *info = &obj->infos[i]; if (!strcmp(info->name, name)) return info->value; } return NULL; } static __hwloc_inline void * hwloc_alloc_membind_policy(hwloc_topology_t topology, size_t len, hwloc_const_cpuset_t set, hwloc_membind_policy_t policy, int flags) { void *p = hwloc_alloc_membind(topology, len, set, policy, flags); if (p) return p; if (hwloc_set_membind(topology, set, policy, flags) < 0) /* hwloc_set_membind() takes care of ignoring errors if non-STRICT */ return NULL; p = hwloc_alloc(topology, len); if (p && policy != HWLOC_MEMBIND_FIRSTTOUCH) /* Enforce the binding by touching the data */ memset(p, 0, len); return p; } #ifdef __cplusplus } /* extern "C" */ #endif #endif /* HWLOC_INLINES_H */