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gregl |
3.1 |
/* Copyright (c) 1997 Silicon Graphics, Inc. */
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/* SCCSid "$SunId$ SGI" */
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/*
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* Header for holodeck display drivers.
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*/
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/* display requests */
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gregl |
3.2 |
#define DR_BUNDLE 1 /* bundle request */
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#define DR_ATTEN 2 /* request for attention */
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#define DR_SHUTDOWN 3 /* shutdown request */
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#define DR_NEWSET 4 /* new bundle set */
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gregl |
3.1 |
#define DR_ADDSET 5 /* add to current set */
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#define DR_DELSET 6 /* delete from current set */
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/* server responses */
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gregl |
3.3 |
#define DS_BUNDLE 7 /* computed bundle */
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#define DS_ACKNOW 8 /* acknowledge request for attention */
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#define DS_SHUTDOWN 9 /* end process and close connection */
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#define DS_ADDHOLO 10 /* register new holodeck */
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#define DS_STARTIMM 11 /* begin immediate bundle set */
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#define DS_ENDIMM 12 /* end immediate bundle set */
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gregl |
3.1 |
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/*
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* Normally, the server channel has priority, with the display process
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* checking it frequently for new data. However, when the display process
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* makes a request for attention (DR_ATTEN), the server will finish its
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* current operations and flush its buffers, sending an acknowledge
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* message (DS_ACKNOW) when it's done. This then allows the
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* display process to send a long request to the holodeck server.
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* Priority returns to normal after the following request.
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*/
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gregl |
3.3 |
#ifndef BIGREQSIZ
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#define BIGREQSIZ 512 /* big request size (bytes) */
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#endif
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gregl |
3.1 |
typedef struct {
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int2 type; /* message type */
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int4 nbytes; /* number of additional bytes */
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} MSGHEAD; /* message head */
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