Module:      replymgr

Purpose:     Private to ("stand-alone") hermes. Collection of routines to 
             manage hermes' reply to a requesting servant.
             
File:        replymgr.c

Author:      J.P. Terlouw

Description: The following routines are available:

          a) services to Hermes:

             void reply_clear(void)   initializes the internal buffer.
             
             void reply_put(char *data, int number)
                                      appends 'number' bytes taken from
                                      'data' to the internal buffer.

              void reply_send(TaskStatus status, int result)
                                       writes the 'result' code to the
                                       buffer (0 = no error). 'Status'
                                       specifies the task status block
                                       of the requesting servant
                                       (currently not used).
                                       
               bool reply_ready(void)  returns true if buffer is ready
                                       to be sent to servant, i.e. if
                                       reply_send has been called.
                                       
          b) service to the requesting servant (after binding by bind_hermes
             called from srvreq):
              
              int SA_recv_msg(char *bufout, int number)
                                       obtain up to 'number' bytes from
                                       the buffer and store them in
                                       'bufout'. Return the actual number
                                       of bytes received. The first bytes
                                       form the result code.

Updates:     23-Feb-90  --  original document
             11-Oct-90  --  name of recv_msg changed to SA_recv_msg