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.