mirror of https://github.com/xzeldon/htop.git
344 lines
14 KiB
C
344 lines
14 KiB
C
/*
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* Copyright © 2009 CNRS
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* Copyright © 2009-2011 INRIA. All rights reserved.
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* Copyright © 2009-2011 Université Bordeaux 1
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* Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved.
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*
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* See COPYING in top-level directory.
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*/
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/* Internal types and helpers. */
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#ifndef HWLOC_PRIVATE_H
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#define HWLOC_PRIVATE_H
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#include <private/autogen/config.h>
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#include <hwloc.h>
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#include <hwloc/bitmap.h>
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#include <private/debug.h>
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#include <sys/types.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#include <string.h>
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#ifdef HWLOC_HAVE_ATTRIBUTE_FORMAT
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# if HWLOC_HAVE_ATTRIBUTE_FORMAT
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# define __hwloc_attribute_format(type, str, arg) __attribute__((__format__(type, str, arg)))
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# else
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# define __hwloc_attribute_format(type, str, arg)
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# endif
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#else
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# define __hwloc_attribute_format(type, str, arg)
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#endif
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enum hwloc_ignore_type_e {
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HWLOC_IGNORE_TYPE_NEVER = 0,
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HWLOC_IGNORE_TYPE_KEEP_STRUCTURE,
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HWLOC_IGNORE_TYPE_ALWAYS
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};
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#define HWLOC_DEPTH_MAX 128
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typedef enum hwloc_backend_e {
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HWLOC_BACKEND_NONE,
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HWLOC_BACKEND_SYNTHETIC,
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#ifdef HWLOC_LINUX_SYS
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HWLOC_BACKEND_SYSFS,
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#endif
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#ifdef HWLOC_HAVE_XML
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HWLOC_BACKEND_XML,
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#endif
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/* This value is only here so that we can end the enum list without
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a comma (thereby preventing compiler warnings) */
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HWLOC_BACKEND_MAX
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} hwloc_backend_t;
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struct hwloc_topology {
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unsigned nb_levels; /* Number of horizontal levels */
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unsigned next_group_depth; /* Depth of the next Group object that we may create */
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unsigned level_nbobjects[HWLOC_DEPTH_MAX]; /* Number of objects on each horizontal level */
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struct hwloc_obj **levels[HWLOC_DEPTH_MAX]; /* Direct access to levels, levels[l = 0 .. nblevels-1][0..level_nbobjects[l]] */
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unsigned long flags;
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int type_depth[HWLOC_OBJ_TYPE_MAX];
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enum hwloc_ignore_type_e ignored_types[HWLOC_OBJ_TYPE_MAX];
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int is_thissystem;
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int is_loaded;
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hwloc_pid_t pid; /* Process ID the topology is view from, 0 for self */
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int (*set_thisproc_cpubind)(hwloc_topology_t topology, hwloc_const_cpuset_t set, int flags);
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int (*get_thisproc_cpubind)(hwloc_topology_t topology, hwloc_cpuset_t set, int flags);
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int (*set_thisthread_cpubind)(hwloc_topology_t topology, hwloc_const_cpuset_t set, int flags);
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int (*get_thisthread_cpubind)(hwloc_topology_t topology, hwloc_cpuset_t set, int flags);
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int (*set_proc_cpubind)(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_const_cpuset_t set, int flags);
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int (*get_proc_cpubind)(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_cpuset_t set, int flags);
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#ifdef hwloc_thread_t
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int (*set_thread_cpubind)(hwloc_topology_t topology, hwloc_thread_t tid, hwloc_const_cpuset_t set, int flags);
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int (*get_thread_cpubind)(hwloc_topology_t topology, hwloc_thread_t tid, hwloc_cpuset_t set, int flags);
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#endif
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int (*get_thisproc_last_cpu_location)(hwloc_topology_t topology, hwloc_cpuset_t set, int flags);
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int (*get_thisthread_last_cpu_location)(hwloc_topology_t topology, hwloc_cpuset_t set, int flags);
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int (*get_proc_last_cpu_location)(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_cpuset_t set, int flags);
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int (*set_thisproc_membind)(hwloc_topology_t topology, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags);
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int (*get_thisproc_membind)(hwloc_topology_t topology, hwloc_nodeset_t nodeset, hwloc_membind_policy_t * policy, int flags);
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int (*set_thisthread_membind)(hwloc_topology_t topology, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags);
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int (*get_thisthread_membind)(hwloc_topology_t topology, hwloc_nodeset_t nodeset, hwloc_membind_policy_t * policy, int flags);
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int (*set_proc_membind)(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags);
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int (*get_proc_membind)(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_nodeset_t nodeset, hwloc_membind_policy_t * policy, int flags);
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int (*set_area_membind)(hwloc_topology_t topology, const void *addr, size_t len, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags);
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int (*get_area_membind)(hwloc_topology_t topology, const void *addr, size_t len, hwloc_nodeset_t nodeset, hwloc_membind_policy_t * policy, int flags);
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/* This has to return the same kind of pointer as alloc_membind, so that free_membind can be used on it */
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void *(*alloc)(hwloc_topology_t topology, size_t len);
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/* alloc_membind has to always succeed if !(flags & HWLOC_MEMBIND_STRICT).
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* see hwloc_alloc_or_fail which is convenient for that. */
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void *(*alloc_membind)(hwloc_topology_t topology, size_t len, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags);
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int (*free_membind)(hwloc_topology_t topology, void *addr, size_t len);
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struct hwloc_topology_support support;
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struct hwloc_os_distances_s {
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int nbobjs;
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unsigned *indexes; /* array of OS indexes before we can convert them into objs. always available.
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*/
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struct hwloc_obj **objs; /* array of objects, in the same order as above.
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* either given (by a backend) together with the indexes array above.
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* or build from the above indexes array when not given (by the user).
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*/
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float *distances; /* distance matrices, ordered according to the above indexes/objs array.
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* distance from i to j is stored in slot i*nbnodes+j.
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* will be copied into the main logical-index-ordered distance at the end of the discovery.
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*/
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} os_distances[HWLOC_OBJ_TYPE_MAX];
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hwloc_backend_t backend_type;
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union hwloc_backend_params_u {
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#ifdef HWLOC_LINUX_SYS
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struct hwloc_backend_params_sysfs_s {
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/* sysfs backend parameters */
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char *root_path; /* The path of the file system root, used when browsing, e.g., Linux' sysfs and procfs. */
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int root_fd; /* The file descriptor for the file system root, used when browsing, e.g., Linux' sysfs and procfs. */
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} sysfs;
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#endif /* HWLOC_LINUX_SYS */
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#if defined(HWLOC_OSF_SYS) || defined(HWLOC_COMPILE_PORTS)
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struct hwloc_backend_params_osf {
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int nbnodes;
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} osf;
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#endif /* HWLOC_OSF_SYS */
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#ifdef HWLOC_HAVE_XML
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struct hwloc_backend_params_xml_s {
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/* xml backend parameters */
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void *doc;
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} xml;
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#endif /* HWLOC_HAVE_XML */
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struct hwloc_backend_params_synthetic_s {
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/* synthetic backend parameters */
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#define HWLOC_SYNTHETIC_MAX_DEPTH 128
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unsigned arity[HWLOC_SYNTHETIC_MAX_DEPTH];
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hwloc_obj_type_t type[HWLOC_SYNTHETIC_MAX_DEPTH];
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unsigned id[HWLOC_SYNTHETIC_MAX_DEPTH];
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unsigned depth[HWLOC_SYNTHETIC_MAX_DEPTH]; /* For cache/misc */
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} synthetic;
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} backend_params;
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};
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extern void hwloc_setup_pu_level(struct hwloc_topology *topology, unsigned nb_pus);
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extern int hwloc_get_sysctlbyname(const char *name, int64_t *n);
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extern int hwloc_get_sysctl(int name[], unsigned namelen, int *n);
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extern unsigned hwloc_fallback_nbprocessors(struct hwloc_topology *topology);
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#if defined(HWLOC_LINUX_SYS)
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extern void hwloc_look_linux(struct hwloc_topology *topology);
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extern void hwloc_set_linux_hooks(struct hwloc_topology *topology);
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extern int hwloc_backend_sysfs_init(struct hwloc_topology *topology, const char *fsroot_path);
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extern void hwloc_backend_sysfs_exit(struct hwloc_topology *topology);
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#endif /* HWLOC_LINUX_SYS */
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#ifdef HWLOC_HAVE_XML
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extern int hwloc_backend_xml_init(struct hwloc_topology *topology, const char *xmlpath, const char *xmlbuffer, int buflen);
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extern void hwloc_xml_check_distances(struct hwloc_topology *topology);
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extern void hwloc_look_xml(struct hwloc_topology *topology);
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extern void hwloc_backend_xml_exit(struct hwloc_topology *topology);
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#endif /* HWLOC_HAVE_XML */
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#ifdef HWLOC_SOLARIS_SYS
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extern void hwloc_look_solaris(struct hwloc_topology *topology);
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extern void hwloc_set_solaris_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_SOLARIS_SYS */
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#ifdef HWLOC_AIX_SYS
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extern void hwloc_look_aix(struct hwloc_topology *topology);
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extern void hwloc_set_aix_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_AIX_SYS */
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#ifdef HWLOC_OSF_SYS
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extern void hwloc_look_osf(struct hwloc_topology *topology);
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extern void hwloc_set_osf_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_OSF_SYS */
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#ifdef HWLOC_WIN_SYS
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extern void hwloc_look_windows(struct hwloc_topology *topology);
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extern void hwloc_set_windows_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_WIN_SYS */
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#ifdef HWLOC_DARWIN_SYS
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extern void hwloc_look_darwin(struct hwloc_topology *topology);
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extern void hwloc_set_darwin_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_DARWIN_SYS */
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#ifdef HWLOC_FREEBSD_SYS
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extern void hwloc_look_freebsd(struct hwloc_topology *topology);
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extern void hwloc_set_freebsd_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_FREEBSD_SYS */
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#ifdef HWLOC_HPUX_SYS
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extern void hwloc_look_hpux(struct hwloc_topology *topology);
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extern void hwloc_set_hpux_hooks(struct hwloc_topology *topology);
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#endif /* HWLOC_HPUX_SYS */
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extern void hwloc_look_x86(struct hwloc_topology *topology, unsigned nbprocs);
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extern int hwloc_backend_synthetic_init(struct hwloc_topology *topology, const char *description);
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extern void hwloc_backend_synthetic_exit(struct hwloc_topology *topology);
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extern void hwloc_look_synthetic (struct hwloc_topology *topology);
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/*
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* Add an object to the topology.
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* It is sorted along the tree of other objects according to the inclusion of
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* cpusets, to eventually be added as a child of the smallest object including
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* this object.
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*
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* If the cpuset is empty, the type of the object (and maybe some attributes)
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* must be enough to find where to insert the object. This is especially true
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* for NUMA nodes with memory and no CPUs.
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*
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* The given object should not have children.
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*
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* This shall only be called before levels are built.
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*
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* In case of error, hwloc_report_os_error() is called.
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*/
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extern void hwloc_insert_object_by_cpuset(struct hwloc_topology *topology, hwloc_obj_t obj);
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/*
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* Add an object to the topology and specify which error callback to use
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*/
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typedef void (*hwloc_report_error_t)(const char * msg, int line);
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extern void hwloc_report_os_error(const char * msg, int line);
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extern int hwloc__insert_object_by_cpuset(struct hwloc_topology *topology, hwloc_obj_t obj, hwloc_report_error_t report_error);
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/*
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* Insert an object somewhere in the topology.
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*
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* It is added as the last child of the given parent.
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* The cpuset is completely ignored, so strange objects such as I/O devices should
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* preferably be inserted with this.
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*
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* The given object may have children.
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*
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* Remember to call topology_connect() afterwards to fix handy pointers.
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*/
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extern void hwloc_insert_object_by_parent(struct hwloc_topology *topology, hwloc_obj_t parent, hwloc_obj_t obj);
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/* Insert name/value in the object infos array. name and value are copied by the callee. */
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extern void hwloc_add_object_info(hwloc_obj_t obj, const char *name, const char *value);
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/* Insert uname-specific names/values in the object infos array */
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extern void hwloc_add_uname_info(struct hwloc_topology *topology);
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/** \brief Return a locally-allocated stringified bitmap for printf-like calls. */
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static __hwloc_inline char *
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hwloc_bitmap_printf_value(hwloc_const_bitmap_t bitmap)
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{
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char *buf;
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hwloc_bitmap_asprintf(&buf, bitmap);
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return buf;
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}
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static __hwloc_inline struct hwloc_obj *
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hwloc_alloc_setup_object(hwloc_obj_type_t type, signed idx)
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{
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struct hwloc_obj *obj = malloc(sizeof(*obj));
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memset(obj, 0, sizeof(*obj));
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obj->type = type;
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obj->os_index = idx;
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obj->os_level = -1;
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obj->attr = malloc(sizeof(*obj->attr));
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memset(obj->attr, 0, sizeof(*obj->attr));
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/* do not allocate the cpuset here, let the caller do it */
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return obj;
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}
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extern void hwloc_free_unlinked_object(hwloc_obj_t obj);
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#define hwloc_object_cpuset_from_array(l, _value, _array, _max) do { \
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struct hwloc_obj *__l = (l); \
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unsigned int *__a = (_array); \
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int k; \
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__l->cpuset = hwloc_bitmap_alloc(); \
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for(k=0; k<_max; k++) \
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if (__a[k] == _value) \
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hwloc_bitmap_set(__l->cpuset, k); \
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} while (0)
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/* Configures an array of NUM objects of type TYPE with physical IDs OSPHYSIDS
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* and for which processors have ID PROC_PHYSIDS, and add them to the topology.
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* */
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static __hwloc_inline void
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hwloc_setup_level(int procid_max, unsigned num, unsigned *osphysids, unsigned *proc_physids, struct hwloc_topology *topology, hwloc_obj_type_t type)
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{
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struct hwloc_obj *obj;
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unsigned j;
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hwloc_debug("%d %s\n", num, hwloc_obj_type_string(type));
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for (j = 0; j < num; j++)
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{
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obj = hwloc_alloc_setup_object(type, osphysids[j]);
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hwloc_object_cpuset_from_array(obj, j, proc_physids, procid_max);
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hwloc_debug_2args_bitmap("%s %d has cpuset %s\n",
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hwloc_obj_type_string(type),
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j, obj->cpuset);
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hwloc_insert_object_by_cpuset(topology, obj);
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}
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hwloc_debug("%s", "\n");
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}
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/* This can be used for the alloc field to get allocated data that can be freed by free() */
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void *hwloc_alloc_heap(hwloc_topology_t topology, size_t len);
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/* This can be used for the alloc field to get allocated data that can be freed by munmap() */
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void *hwloc_alloc_mmap(hwloc_topology_t topology, size_t len);
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/* This can be used for the free_membind field to free data using free() */
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int hwloc_free_heap(hwloc_topology_t topology, void *addr, size_t len);
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/* This can be used for the free_membind field to free data using munmap() */
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int hwloc_free_mmap(hwloc_topology_t topology, void *addr, size_t len);
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/* Allocates unbound memory or fail, depending on whether STRICT is requested
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* or not */
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static __hwloc_inline void *
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hwloc_alloc_or_fail(hwloc_topology_t topology, size_t len, int flags)
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{
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if (flags & HWLOC_MEMBIND_STRICT)
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return NULL;
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return hwloc_alloc(topology, len);
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}
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extern void hwloc_topology_distances_init(struct hwloc_topology *topology);
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extern void hwloc_topology_distances_clear(struct hwloc_topology *topology);
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extern void hwloc_topology_distances_destroy(struct hwloc_topology *topology);
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extern void hwloc_topology__set_distance_matrix(struct hwloc_topology *topology, hwloc_obj_type_t type, unsigned nbobjs, unsigned *indexes, hwloc_obj_t *objs, float *distances);
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extern void hwloc_store_distances_from_env(struct hwloc_topology *topology);
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extern void hwloc_convert_distances_indexes_into_objects(struct hwloc_topology *topology);
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extern void hwloc_finalize_logical_distances(struct hwloc_topology *topology);
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extern void hwloc_restrict_distances(struct hwloc_topology *topology, unsigned long flags);
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extern void hwloc_free_logical_distances(struct hwloc_distances_s *dist);
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extern void hwloc_group_by_distances(struct hwloc_topology *topology);
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#endif /* HWLOC_PRIVATE_H */
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