dpm_getpools (3)

#include <sys/types.h>

#include "dpm_api.h"

int dpm_getpools (int *nbpools, struct dpm_pool **dpm_pools)

dpm_getpools gets list of pools.

The output arguments are:

nbpools

will be set to the number of replies in the array of pools.

dpm_pools

will be set to the address of an array of dpm_pool structures allocated by the API. The client application is responsible for freeing the array when not needed anymore. This is also necessary for the gids entry of each dpm_pool.

struct dpm_pool {
	char		poolname[CA_MAXPOOLNAMELEN+1];
	u_signed64	defsize;
	int		gc_start_thresh;
	int		gc_stop_thresh;
	int		def_lifetime;
	int		defpintime;
	int		max_lifetime;
	int		maxpintime;
	char		fss_policy[CA_MAXPOLICYLEN+1];
	char		gc_policy[CA_MAXPOLICYLEN+1];
	char		mig_policy[CA_MAXPOLICYLEN+1];
	char		rs_policy[CA_MAXPOLICYLEN+1];
	int		nbgids
	gid_t		*gids;		/* restrict the pool to given group(s) */
	char		ret_policy;	/* retention policy: 'R', 'O' or 'C' */
	char		s_type;		/* space type: 'V', 'D' or 'P' */
	u_signed64	capacity;
	u_signed64	free;
	struct dpm_fs	*elemp;
	int		nbelem;
	int		next_elem;	/* next pool element to be used */
};

This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.

EFAULT

nbpools or dpm_pools is a NULL pointer.

ENOMEM

Memory could not be allocated for storing the reply.

SENOSHOST

Host unknown.

SECOMERR

Communication error.