mirror of https://github.com/GnoConsortium/gno.git
158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
/*
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* Kernel Process table structure
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* Copyright 1991-1996 Procyon, Inc.
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*
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* $Id: proc.h,v 1.1 1997/02/28 04:42:06 gdr Exp $
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*/
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#ifndef _GNO_PROC_H_
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#define _GNO_PROC_H_
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#ifndef __TYPES__
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#include <types.h>
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#endif
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#ifndef _SYS_SIGNAL_H_
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#include <sys/signal.h>
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#endif
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/* the various process states are defined here */
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#define procUNUSED 0
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#define procRUNNING 1
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#define procREADY 2
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#define procBLOCKED 3
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#define procNEW 4
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#define procSUSPENDED 5
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#define procWAIT 6
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#define procWAITSIGCH 7
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#define procPAUSED 8
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#define procSLEEP 9
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#define BLOCKED_RECEIVE 2
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#define BLOCKED_PRECEIVE 3
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#define SYSERR -1
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#define SYSOK 0
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#define rtGSOS 0
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#define rtPIPE 1
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#define rtTTY 2
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#define rtSOCKET 3
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#define rfPIPEREAD 1 /* read end of the pipe */
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#define rfPIPEWRITE 2 /* write end of the pipe */
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#define rfCLOSEEXEC 4 /* close this file on an exec() */
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#define rfP16NEWL 8 /* special prodos-16 newline mode */
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typedef struct fdentry {
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word refNum; /* refNum, pipeNum, ttyID, or sockNum */
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word refType; /* 0 = GS/OS refnum, 1 = pipe, 2 = tty, 3 = socket */
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word refLevel; /* "file level" of the refnum */
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word refFlags; /* see flags above */
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word NLenableMask; /* these three fields are for newline handling */
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word NLnumChars;
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void *NLtable;
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} fdentry, *fdentryPtr;
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typedef struct fdtable {
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word fdCount;
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word fdLevel;
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word fdLevelMode;
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word fdTableSize;
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fdentry fds[1];
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} fdtable, *fdtablePtr;
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#define FD_SIZE 32
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typedef struct quitStack {
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struct quitStack *next;
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char data[1];
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} quitStack;
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/* these flags are set by _execve() and fork() during process creation. */
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#define FL_RESOURCE 1 /* does the process have and use a resource fork? */
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#define FL_FORKED 2 /* was the process started with fork() ? */
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#define FL_COMPLIANT 4 /* is the process fully GNO compliant? */
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#define FL_NORMTERM 8 /* did the program terminate via exit()? 1=yes */
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#define FL_RESTART 16 /* is the program restartable? (set by QuitGS) */
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#define FL_NORESTART 32 /* don't allow this code to restart */
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#define FL_QDSTARTUP 64 /* flag set if QDStartUp was called */
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#define FL_MSGRECVD 128 /* flag set if there's a send() msg waiting */
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#define FL_SELECTING 256 /* this process is 'selecting' */
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struct pentry {
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int parentpid; /* pid of this process' parent */
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int processState;
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int userID; /* a GS/OS UserID, used to keep track of memory */
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int ttyID; /* driver (not GS/OS) number of i/o port */
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word irq_A; /* context information for the process */
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word irq_X;
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word irq_Y;
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word irq_S;
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word irq_D;
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byte irq_B;
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byte irq_B1;
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word irq_P;
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word irq_state;
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word irq_PC;
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word irq_K;
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int psem; /* semaphoreID process is blocked on */
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char **prefix; /* cwd's (GS/OS prefixes 0,1, and 9 */
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char *args; /* the command line that invoked the process program */
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char **env; /* environment variables for the program */
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struct sigrec *siginfo; /* global mask of which signals are blocked */
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byte irq_SLTROM;
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byte irq_STATEREG;
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word lastTool;
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longword ticks;
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word flags;
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fdtablePtr openFiles;
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word pgrp;
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word exitCode;
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void *LInfo;
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word stoppedState; /* process state before stoppage */
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longword alarmCount;
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void *executeHook; /* for a good time call... */
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word queueLink;
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#ifdef KERNEL
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chldInfoPtr waitq; /* where waits wait to be processed */
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#else
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void *waitq;
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#endif
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int waitdone;
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int flpid;
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quitStack *returnStack;
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word t2StackPtr;
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word p_uid, p_gid;
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word p_euid, p_egid;
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word SANEwap;
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longword msg;
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longword childTicks;
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unsigned long p_waitvec;
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unsigned p_slink;
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struct pentry *p_link,*p_rlink;
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int p_prio;
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/* no unused entries */
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};
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typedef struct pentry procState, *procStatePtr;
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#ifdef KERNEL
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struct kernelStruct {
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procState procTable[32];
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int curProcInd;
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int userID;
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int mutex;
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int timeleft;
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int numProcs;
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word truepid;
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word shutdown;
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word gsosDebug;
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int floatingPID;
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};
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typedef struct kernelStruct kernelStruct, *kernelStructPtr;
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#endif /* KERNEL */
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#endif /* _GNO_PROC_H_ */
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