PMDF popstore & MessageStore Manager's Guide
PMDF-POP-6.0

Perform billing operations on an account.

int POPSTORE_user_billing_d (domain, domain_len, user, 
                             user_len, last_billing, 
                             user_data) 
      char               *domain; 
      int                 domain_len; 
      char               *user; 
      int                 user_len; 
      time_t              last_billing; 
      POPSTORE_user_data *user_data; 

ARGUMENTS

domain

Name of the user domain to use. Supply a value of NULL to indicate the default domain. Used for input only.

domain_len

Length in bytes of the user domain name, domain. Supply a value of zero to indicate the default domain. Used for input only.

user

Name of the user to perform billing operations for. Used for input only.

user_len

Length in bytes of the username string, user. Used for input only.

last_billing

End time to use for this billing cycle. Used for input only.

user_data

User profile information containing the generated billing information. Used for output only.

DESCRIPTION

Programs wishing to perform billing operations should use the POPSTORE_user_billing_d subroutine in conjunction with the POPSTORE_user_list_d subroutine. That latter subroutine provides a convenient way to obtain the name of each popstore account and, with the name in hand, invoke POPSTORE_user_billing_d to perform billing operations for that account. The POPSTORE_user_billing_d subroutine performs atomic billing operations. Specifically, POPSTORE_user_billing_d does the following:

• Locks the user profile file.
• Reads the profile file into memory and copies it to the structure pointed at with the user_data argument.
• Computes the accumulated block days used for the currently stored message and copies this information to user_data->past_block_days.
• Clears the total connect and past block days profile fields, and sets the last billing profile and message list fields to the value of the last_billing argument.
• Writes the updated user profile to disk.
• Unlocks the profile file.
• Returns the profile data including the total connect time and computed block days in the structure pointed at by the user_data argument. In the returned profile data,
  • The value of the last billing field, user_data->last_billing, will be the time of the prior billing, not this current billing.
  • The value of the total connect time field, user_data->total_connect, will be the total connect time accumulated between the times user_data->last_billing and last_billing.
  • The value of the past block days, user_data->past_block_days, will be that accumulated between the times user_data->last_billing and last_billing. This includes the storage used for any messages deleted or returned during that time as well as the storage used for any messages presently being stored.
  Note that the roundoff associated with computing the past block days is kept in the user profile file. The returned profile data has the roundoff field set to zero.