Sprite 1984

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Text File | 1990-03-16 | 11.9 KB | 498 lines

head 1.12; branch ; access ; symbols ; locks ; strict; comment @ * @; 1.12 date 89.10.04.19.18.15; author tve; state Exp; branches ; next 1.11; 1.11 date 88.09.08.18.15.43; author ouster; state Exp; branches ; next 1.10; 1.10 date 88.08.26.16.13.39; author brent; state Exp; branches ; next 1.9; 1.9 date 88.08.26.15.51.32; author deboor; state Exp; branches ; next 1.8; 1.8 date 87.11.29.19.52.27; author deboor; state Exp; branches ; next 1.7; 1.7 date 87.11.01.20.22.51; author deboor; state Exp; branches ; next 1.6; 1.6 date 87.08.21.20.31.27; author deboor; state Exp; branches ; next 1.5; 1.5 date 87.06.30.19.11.25; author deboor; state Exp; branches ; next 1.4; 1.4 date 87.06.23.13.30.04; author deboor; state Exp; branches ; next 1.3; 1.3 date 87.06.20.19.58.21; author deboor; state Exp; branches ; next 1.2; 1.2 date 87.06.13.11.27.29; author deboor; state Exp; branches ; next 1.1; 1.1 date 87.06.11.17.47.24; author deboor; state Exp; branches ; next ; desc @header file for the sprite OS layer @ 1.12 log @changed from lst library to list library @ text @/*- * spriteos.h -- * Internal data for Sprite OS layer. * * Copyright (c) 1987 by the Regents of the University of California * * Permission to use, copy, modify, and distribute this * software and its documentation for any purpose and without * fee is hereby granted, provided that the above copyright * notice appear in all copies. The University of California * makes no representations about the suitability of this * software for any purpose. It is provided "as is" without * express or implied warranty. * * "$Header: spriteos.h,v 1.11 88/09/08 18:15:43 ouster Exp $ SPRITE (Berkeley)" */ #ifndef _OS_H #define _OS_H /* * Because both Sprite and X define the type 'Time' (and they're incompatible), * we have to kludge things by making the definition of Time in the Sprite * files be SpriteTime. Henceforth, that is what the Sprite Time value should * be referred to as. */ #include "buf.h" #include <list.h> #include "X.h" #include "Xmd.h" #include "os.h" #include "dixstruct.h" /* * Scheduling interval. After MAX_PACKETS requests have been processed, * the client is forced to yield the server to the next client. */ #define MAX_PACKETS 10 /* * Various aspects of a client must be tracked to handle the protocol. * These are stored in the ClntPrivRec hanging from the osPrivate field of * the ClientRec. * * There are two distinct types of connections being used here. One is * over a Pseudo-device where the connection is very synchronous. The * other is over a TCP stream, as managed by the TCP module. There are * various differences between the two, not the least of which that there * is only one stream for the TCP connection. To embody this, each client * has a Read and a Write function, as well as a stream-private pointer * that is manipulated only by the controlling module. To determine when * a client is ready, two select masks are also maintained. */ typedef struct { char *(*readProc)(); /* Function to read from the client */ int (*writeProc)(); /* Function to write to the client */ void (*closeProc)(); /* Function to close down the client */ int *mask; /* Mask of all streams for this client * (set by the controlling module) */ int *ready; /* Mask of streams that are ready * (set by the scheduler) */ int maskWidth; /* Width of said masks */ pointer devicePrivate; /* Data private to the controlling module */ } ClntPrivRec, *ClntPrivPtr; /* * Global data */ extern int *AllClientsMask; /* All active clients */ extern int *SavedAllClientsMask; /* When grabbed */ extern int *AllStreamsMask; /* All streams to check */ extern int *SavedAllStreamsMask; /* When grabbed */ extern int *LastSelectMask; /* Result of Fs_Select */ extern int *EnabledDevicesMask; /* Mask from devices */ extern int *ClientsWithInputMask; /* Mask of clients with input * still in their buffers */ extern int NumActiveStreams; /* The number of active streams * used in the various bit * masks */ #ifdef TCPCONN extern int TCP_Conn; /* TCP listening socket */ #endif TCPCONN extern int Pdev_Conn; /* New Pseudo-device control * stream ID */ extern char *display; /* Our display number */ extern Bool GrabDone; /* TRUE if listening to only * one client */ extern ClientPtr grabbingClient; /* Client that performed the * grab. */ extern char whichByteIsFirst; /* Our byte order */ extern List_Links allStreams; /* All open streams */ extern int spriteCheckInput; extern void spriteInputAvail(); extern void ExpandMasks(); extern Bool clientsDoomed; /* * Debug control: * There is one bit per module. It is up to the module what debug * information to print. * DBG(module) returns TRUE if debugging is on for that module. */ extern int debug; #define DEBUG_SCHED 0x00000001 #define DEBUG_CONN 0x00000002 #define DEBUG_PDEV 0x00000004 #define DEBUG_TCP 0x00000010 #define I(a) a #ifdef __STDC__ #define CONCAT(a,b) a##b #else #define CONCAT(a,b) I(a)b #endif /* __STDC__ */ #define DBG(module) (debug & CONCAT(DEBUG_,module)) #define FamilySprite 3 /* Pseudo-device access control -- should * be in X.h */ #endif _OS_H @ 1.11 log @Intermediate check-in while converting to new C library. @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.10 88/08/26 16:13:39 brent Exp $ SPRITE (Berkeley)" d27 1 a27 1 #include "lst.h" d94 1 a94 1 extern Lst allStreams; /* All open streams */ @ 1.10 log @Nuked use of NEWPDEV @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.8 87/11/29 19:52:27 deboor Exp $ SPRITE (Berkeley)" a25 8 #define Time SpriteTime #include <sprite.h> #include <fs.h> #include <io.h> #include <bit.h> #include <mem.h> a27 1 #undef Time @ 1.9 log @Added __STC__ stuff and OLDPDEV defines @ text @a89 4 #ifdef OLDPDEV extern int Pdev_Conn; /* Pseudo device control * stream ID */ #endif OLDPDEV d93 2 a94 2 #ifdef NEWPDEV extern int NewPdev_Conn; /* New Pseudo-device control a95 1 #endif NEWPDEV a117 1 #define DEBUG_NEWPDEV 0x00000008 @ 1.8 log @Added support for conditional debugging @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.7 87/11/01 20:22:51 deboor Exp $ SPRITE (Berkeley)" d90 1 d93 1 d127 3 d131 1 d133 3 @ 1.7 log @Removed pseudo-device dependencies to pdev.c and generalised private data, as well as added support for TCP connections @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.6 87/08/21 20:31:27 deboor Exp $ SPRITE (Berkeley)" d95 4 d111 17 @ 1.6 log @Adapted to single-output-buffer changes in clientIO.c @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.5 87/06/30 19:11:25 deboor Exp $ SPRITE (Berkeley)" a30 1 #include <dev/pdev.h> d50 12 a61 8 * A client can be made up of multiple streams (if the client is multi- * threaded, e.g.), so we have to track each one separately. They are * all kept under the same ClntPrivRec. When an event is to be sent to * the client, it is written to all the streams. When a request comes in, * its sequence number is remembered in the lastSeq field (we have to look * at the DIX Client structure to do this, but it can't be helped). When a * reply or error is generated, it is routed to the correct stream by * examining its sequence number. d64 3 a66 5 ClientPtr client; /* Client this stream is for * (backward link for closings) */ int clientFlags;/* Flags from client's Fs_Open */ int pdevID; /* ID gotten from original pdev open */ int streamID; /* The stream used */ d68 6 a73 34 /* * Output things */ Boolean waiting; /* The client is waiting */ Pdev_WaitInfo wait; /* Thing with which to wake the client up*/ enum { SELECT, READ } whyWait; /* Why the client is waiting... */ /* * Input things */ Address buffer; /* A buffer for reading from the client */ Address bufPtr; /* The current offset into the buffer */ int numBytes; /* The number of bytes remaining in the * buffer */ Boolean needData; /* TRUE if not enough data in buffer * to fulfill the request in there */ } ClntStreamRec, *ClntStreamPtr; /* * Various aspects of a client must be tracked to handle the pseudo-device * protocol. These are stored in the ClntPrivRec hanging from the osPrivate * field of the ClientRec. */ typedef struct { int *mask; /* Mask of all streams for this client */ int *ready; /* Mask of streams which are ready */ int maskWidth; /* Width of said masks */ Buffer outBuf; /* Packets awating a read request from * the client processes. */ Lst streams; /* All open streams for this client */ LstNode lastStream; /* The last stream serviced. Used for * scheduling */ d90 1 a90 1 extern int PseudoDevice; /* Pseudo device control d92 4 d105 2 @ 1.5 log @Adapted to beta-1 @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.4 87/06/23 13:30:04 deboor Exp $ SPRITE (Berkeley)" a69 2 Buffer outBuf; /* Packets awating a read request from * the client. */ d96 2 d99 2 a100 3 LstNode lastStream; /* The last stream serviced. Used both for * scheduling and to pass out errors and * replies */ @ 1.4 log @Added use of Buf library @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.3 87/06/20 19:58:21 deboor Exp $ SPRITE (Berkeley)" d42 1 d61 1 a61 1 int clientID; /* Client number this stream is for d64 1 d73 1 a73 1 Fs_PdevWaitInfo wait; /* Thing with which to wake the client up*/ d91 2 a92 3 * protocol. These are stored in the ClntPrivRec in the clientPriv array. * It ought to be hanging from the osPrivate field of the ClientRec, but * the ClientRec isn't allocated when the connection is established, so... a101 3 Bool clientNew; /* TRUE if the client is new. i.e. we * have received no requests from it -- * used mostly in WriteToClient */ a114 4 extern int FirstClient; /* First real client */ extern int LastClient; /* Last client allocated */ a119 1 a120 1 d123 2 a124 3 extern int grabbingClientID; /* ID number of client which * performed the grab. */ d126 1 a126 4 extern ClntPrivRec clientPriv[]; extern int *StreamToClient; /* Mapping from streamID to * clientID */ a128 1 extern void sunInputAvail(); @ 1.3 log @adapted to Beta-0 and "debugged" @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.2 87/06/13 11:27:29 deboor Exp $ SPRITE (Berkeley)" d35 1 d68 2 a69 4 Lst outPackets; /* Packets awaiting a read request from the * client */ int lenPackets; /* The length of all the packets */ @ 1.2 log @Adapted to new method of accessing the pseudo-device in clientIO.c @ text @d15 1 a15 1 * "$Header: spriteos.h,v 1.1 87/06/11 17:47:24 deboor Exp $ SPRITE (Berkeley)" d31 1 a31 1 #include <kernel/fsPdev.h> d72 4 a75 1 Fs_PdevWaitInfo wait; /* Thing with which to wake the client up */ d84 2 d102 3 @ 1.1 log @Initial revision @ text @d15 1 a15 1 * "$Header$ SPRITE (Berkeley)" d33 1 d35 1 a58 1 Bool active; /* TRUE if connection active */ d63 18 a80 3 Io_Stream inStream; /* Input buffer. Only one request is read * into the buffer at once */ Io_Stream outStream; /* Buffered output awaiting read call */ d92 3 a94 4 int maskWidth; /* Width of said mask */ int numStreams; /* Number of streams for this client */ ClntStreamPtr streams; /* All streams for this client */ ClntStreamPtr lastStream; /* The last stream serviced. Used both for @