src/common/node_features.h

/*****************************************************************************\
  *  node_features.h - common node features handling
  *****************************************************************************
  *  Copyright (C) SchedMD LLC.
  *
  *  This file is part of Slurm, a resource management program.
  *  For details, see <https://slurm.schedmd.com/>.
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 \*****************************************************************************/

#include "src/common/bitstring.h"
#include "src/common/job_record.h"
#include "src/common/list.h"

extern list_t *active_feature_list; /* currently active node_feature_t's */
extern list_t *avail_feature_list; /* available node_feature_t's */
extern bool node_features_updated;

typedef struct node_features {
	uint32_t magic; /* magic cookie to test data integrity */
	char *name; /* name of a feature */
	bitstr_t *node_bitmap; /* bitmap of nodes with this feature */
} node_feature_t;

/*
 * For a configuration where available_features == active_features,
 * build new active and available feature lists
 */
extern void node_features_build_list_eq(void);

/*
 * For a configuration where available_features != active_features,
 * build new active and available feature lists
 */
extern void node_features_build_list_ne(void);

/*
 * Build a list of active features available in the job nodes
 */
extern void node_features_build_active_list(job_record_t *job_ptr);

/*
 * Update active_feature_list or avail_feature_list
 * feature_list IN - list to update: active_feature_list or avail_feature_list
 * new_features IN - New active_features
 * node_bitmap IN - Nodes with the new active_features value
 */
extern void node_features_update_list(list_t *feature_list, char *new_features,
				      bitstr_t *node_bitmap);

/*
 * Free global active_feature_list and avail_feature_lists.
 */
extern void node_features_free_lists(void);