The following function interface definitions apply to the <rapi.h> header:

• Type rapi_sid_t is defined by typedef as unsigned int for RAPI client handles.
• Macro NULL_SID is defined for error returns from rapi_session().
• The following macro is defined and evaluated to a bitwise-distinct integral value:

  Constant	Meaning
  RAPI_USE_INTSERV	Use Int-Serv fmt in upcalls

  Enumeration rapi_eventinfo_t is defined by typedef for RAPI event types, and has at least the following members:

  Member
  RAPI_PATH_ERROR
  RAPI_PATH_EVENT
  RAPI_RESV_CONFIRM
  RAPI_RESV_ERROR
  RAPI_RESV_EVENT

• The following macros are defined and evaluate to distinct integral values:

  Constant	Meaning
  RAPI_ERRF_InPlace	Left reservation in place
  RAPI_ERRF_NotGuilty	This receiver not guilty

• Type rapi_event_rtn_t is defined by typedef as a function that conforms to the prototype defined in the definition for event upcall.
• The following macros are defined and evaluate to distinct integral values for use as RAPI error codes. Macro RAPI_ERR_OK (which indicates that there is no error) evaluates to 0.

  Error code
  RAPI_ERR_BADPROTO
  RAPI_ERR_BADRECV
  RAPI_ERR_BADSEND
  RAPI_ERR_BADSID
  RAPI_ERR_BADSPORT
  RAPI_ERR_BADSTYLE
  RAPI_ERR_BADVDPORT
  RAPI_ERR_GPI_CONFLICT
  RAPI_ERR_GPISESS
  RAPI_ERR_INTSERV
  RAPI_ERR_INVAL
  RAPI_ERR_MAXSESS
  RAPI_ERR_MEMFULL
  RAPI_ERR_N_FFS
  RAPI_ERR_NORSVP
  RAPI_ERR_NOTSPEC
  RAPI_ERR_OBJLEN
  RAPI_ERR_OBJTYPE
  RAPI_ERR_OK
  RAPI_ERR_OVERFLOW
  RAPI_ERR_SYSCALL
  RAPI_ERR_UNKNOWN
  RAPI_ERR_UNSUPPORTED

• The following macros are defined and evaluate to the RSVP error code values as defined in RSVP error codes:

  Error code
  RSVP_Err_ADMISSION
  RSVP_Err_API_ERROR
  RSVP_Err_BAD_DSTPORT
  RSVP_Err_BAD_SNDPORT
  RSVP_Err_BAD_STYLE
  RSVP_Err_NONE
  RSVP_Err_NO_PATH
  RSVP_Err_NO_SENDER
  RSVP_Err_POLICY
  RSVP_Err_PREEMPTED
  RSVP_Err_RSVP_SYS_ERROR
  RSVP_Err_TC_ERROR
  RSVP_Err_TC_SYS_ERROR
  RSVP_Err_UNKN_OBJ_CLASS
  RSVP_Err_UNKNOWN_STYLE
  RSVP_Err_UNKNOWN_CTYPE