Mercurial > hg > Members > kono > nitros9-code
annotate defs/pipedefs @ 1160:804c46c20c2b
Fixed minor problem
| author | boisy |
|---|---|
| date | Fri, 02 May 2003 22:34:19 +0000 |
| parents | 6f1799317d2b |
| children | 0a678473d5cf |
| rev | line source |
|---|---|
| 516 | 1 IFEQ PIPEDEFS |
|
373
c07686556109
Added ifeq statements at top to allow for multiple use's of same def
boisy
parents:
0
diff
changeset
|
2 |
|
c07686556109
Added ifeq statements at top to allow for multiple use's of same def
boisy
parents:
0
diff
changeset
|
3 PIPEDEFS set 1 |
|
c07686556109
Added ifeq statements at top to allow for multiple use's of same def
boisy
parents:
0
diff
changeset
|
4 |
| 516 | 5 * |
| 6 * Copyright 1988 by Microware Systems Corporation | |
| 7 * All Rights Reserved | |
| 8 * | |
| 9 * Named pipe equates by Burke & Burke. | |
| 10 * All rights assigned to Microware Systems Corporation. | |
| 11 * | |
| 12 * This file contains proprietary information of Microware Systems | |
| 13 * Corporation. Persons accessing this file will be held strictly | |
| 14 * accountable for their use of the information herein. | |
| 15 * | |
| 16 | |
| 17 * | |
| 18 * OS9 Level 2 Pipe Definitions | |
| 19 * | |
| 20 * Modification History | |
| 21 * -------------------- | |
| 22 * | |
| 23 * Date Who Description | |
| 24 * -------- --- ----------------------------------------- | |
| 25 * 12/03/88 cjb Coded from new PIPEMAN comments | |
| 26 * | |
| 27 | |
| 0 | 28 nam PipeDefs |
| 29 ttl OS-9 Pipe Definitions | |
| 30 | |
| 31 * OS-9 Pipe Definitions | |
| 32 * | |
| 33 * IOMan equates duplicated for PipeMan use | |
| 34 * | |
| 35 | |
| 36 NPATHS set 16 ;Maximum local paths per task -- must match IOMan | |
| 37 NameMax set 29 ;Maximum length of a file name | |
| 38 | |
| 39 * | |
| 40 * Device Driver Static Storage Layout | |
| 41 * | |
| 42 org V.User | |
| 43 V.List rmb 2 ;Pointer to 1st pipe's pipe buffer | |
| 44 PManMem equ . ;Device driver memory (drive table equivalent) | |
| 45 | |
| 46 * | |
| 47 * Pipe Buffer Data Structure | |
| 48 * | |
| 49 org 0 | |
| 50 PP.PD rmb 2 ;Pointer to shared path descriptor | |
| 51 PP.Next rmb 2 ;Pointer to next pipe buffer in system map | |
| 52 PP.Prev rmb 2 ;Pointer to previous pipe buffer in system map | |
| 53 PP.Rsrv rmb 2 ;Reserved | |
| 54 PP.Data equ . ;Data buffer begins at this offset | |
| 55 | |
| 56 * | |
| 57 * Unique Path Descriptor Variables | |
| 58 * | |
| 59 org PD.FST | |
| 60 *** PP.Read must have bit 4 clear; PP.Writ must be PP.Read XOR 4 | |
| 61 PD.Read equ . | |
| 62 PD.RPID rmb 1 ;Process ID of reader waiting on signal | |
| 63 PD.RCT rmb 1 ;Number of blocked readers | |
| 64 PD.RSIG rmb 1 ;Signal to send reader | |
| 65 PD.REOR rmb 1 ;Read EOR character | |
| 66 PD.Writ equ . | |
| 67 PD.WPID rmb 1 ;Process ID of writer waiting on signal | |
| 68 PD.WCT rmb 1 ;Number of blocked writers | |
| 69 PD.WSIG rmb 1 ;Signal to send writer | |
| 70 PD.WEOR rmb 1 ;Write EOR character (dummy) | |
| 71 *** End of special section | |
| 72 PD.End rmb 2 ;Pointer to end of pipe buffer | |
| 73 PD.NxtI rmb 2 ;Next in pointer | |
| 74 PD.NxtO rmb 2 ;Next out pointer | |
| 75 PD.RFlg rmb 1 ;"Ready" flag | |
| 76 PD.Wrtn rmb 1 ;"Written" flag | |
| 77 PD.BCnt rmb 2 ;# queue elements currently bufered | |
| 78 PD.Own rmb 1 ;Process ID of pipe original creator | |
| 79 PD.Keep rmb 1 ;Non-zero if pipe has been kept open artificailly | |
| 80 PD.QSiz rmb 2 ;Max. elements in queue (copied from OPT section) | |
| 81 | |
| 82 * | |
| 83 * Path descriptor option section | |
| 84 * | |
| 85 * Note that PD.Name overlaps with the last byte of PD.ECnt. | |
| 86 * PD.ECnt is copied to PD.QSiz as part of OPEN or CREATE, | |
| 87 * to make room for the pipe name. | |
| 88 * | |
| 89 org (PD.OPT+1) | |
| 90 PD.ESiz rmb 1 ;Size of each queue element | |
| 91 PD.ECnt rmb 2 ;Max. elements in queue (initial position) | |
| 516 | 92 IFGT Level-1 |
| 93 org (PD.OPT+3) | |
| 94 PD.Name rmb NameMax | |
| 95 ENDC | |
| 0 | 96 |
| 97 * | |
| 98 * Device Descriptor definitions | |
| 99 * | |
| 100 IT.PDC equ $12 ;Pipe device class (like IT.DTP, IT.DVC) | |
| 101 org IT.PDC | |
| 102 rmb 1 ;Leave room for device class | |
| 103 IT.ESiz rmb 1 ;Size of each queue element | |
| 104 IT.ECnt rmb 2 ;Max. elements in queue (initial position) | |
| 105 | |
| 106 * End of pipedefs | |
| 107 | |
| 516 | 108 ENDC |
| 109 |