DPM_GETPOOLS(3) DPM Library Functions DPM_GETPOOLS(3)NAME
dpm_getpools - get list of pools
SYNOPSIS
#include <sys/types.h>
#include "dpm_api.h"
int dpm_getpools (int *nbpools, struct dpm_pool **dpm_pools)
DESCRIPTION
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 free-
ing 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 */
};
RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ERRORS
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.
LCG $Date: 2007/04/30 06:39:28 $ DPM_GETPOOLS(3)
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DPM_RESERVESPACE(3) DPM Library Functions DPM_RESERVESPACE(3)NAME
dpm_reservespace - reserve space
SYNOPSIS
#include <sys/types.h>
#include "dpm_api.h"
int dpm_reservespace (const char s_type, const char *u_token, const char ret_policy, const char ac_latency, u_signed64 req_t_space,
u_signed64 req_g_space, time_t req_lifetime, int nbgids, gid_t *req_gids, const char *poolname, char *actual_s_type, u_signed64
*actual_t_space, u_signed64 *actual_g_space, time_t *actual_lifetime, char *s_token)
DESCRIPTION
dpm_reservespace reserves space.
The input arguments are:
s_type specifies the type of space requested. It can be V (for Volatile), D (for Durable), P (for Permanent) or - (for any).
u_token
specifies the user provided description associated with the request. This argument may be NULL.
ret_policy
specifies the retention policy requested. It can be R (for REPLICA), O (for OUTPUT) or C (for CUSTODIAL).
ac_latency
specifies the access latency requested. It can be O (for ONLINE) or N (for NEARLINE).
req_t_space
Total space requested in bytes.
req_g_space
Guaranteed space requested in bytes.
req_lifetime
specifies the requested space lifetime (in seconds) relative to the current time.
nbgids is the size of the array of group ids req_gids.
req_gids
when zero, the space is reserved for the user if the requester has a proxy without VOMS extension or for the group if the requester
has a proxy with VOMS extension. If not zero, the space is reserved for this set of group ids. If the caller does not belong to
the group, it must have ADMIN privileges.
poolname
If not NULL, reserves the space in that disk pool.
The output arguments are:
actual_s_type
Type of reserved space.
actual_t_space
Total space reserved in bytes (best effort).
actual_g_space
Guaranteed space reserved in bytes.
actual_lifetime
Lifetime of the reserved space (in seconds) relative to the current time.
s_token
Address of a buffer to receive the system allocated token.
RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ERRORS
EACCES The caller does not belong to the group identified by req_gid and does not have ADMIN privileges.
EFAULT nbgids is greater than 0 and req_gids is a NULL pointer.
EINVAL The space type is invalid or the length of the user space token description is greater than 255, the space requested is not a
positive value, the pool name is longer than CA_MAXPOOLNAMELEN or unknown or the number of gids is too big.
SENOSHOST Host unknown.
SEINTERNAL Database error.
SECOMERR Communication error.
LCG $Date$ DPM_RESERVESPACE(3)