Changed directory structure.

[vlp.git] / src / int / process.h

diff --git a/src/int/process.h b/src/int/process.h
new file mode 100644 (file)
index 0000000..79435a0
--- /dev/null
+++ b/src/int/process.h
@@ -0,0 +1,131 @@
+#include        "queue.h"
+
+
+/* Process management definitions : */
+
+#define MAXPROCESS       64  /* maximum number of processes on one node */
+#define MAXMSGQUEUE      16 /* maximum number of waiting messages */
+
+#define MSGLENGTH       256   /* message length defined by me (PS) */
+
+
+/* Process state : */
+
+#define GENERATING      0    /* during generation of process object */
+#define STOPPED         1      /* non-active process (suspended by STOP) */
+#define EXECUTING       2     /* active process (ready to execute) */
+#define WAITFORNEW      3    /* waiting for NEW of another process */
+#define WAITFORRPC      4    /* waiting for remote procedure call */
+#define ACCEPTING       5     /* during execution of ACCEPT statement */
+#define WAITASKPRO      6    /* waiting for process prototype */
+
+/* Process descriptor : */
+
+typedef struct
+{
+    bool used;           /* TRUE if in use by some process */
+    word mark;           /* process mark for proper detecting of none */
+    int status;                /* process state */
+    word prot;           /* process prototype number */
+    memory M;      /* pointer to memory array */
+    union value param[ MAXPARAM ];
+    word ic;         /* instruction counter */
+    word trlnumber;         /* trace line number */
+    word lower;                /* first word of object area */
+    word upper;                /* last word in memory */
+    word lastused;           /* last word used by objects */
+    word lastitem;           /* first word used by dictionary */
+    word freeitem;           /* head of free dictionary item list */
+    word headk;                /* head of killed object list for size > 2 */
+    word headk2;               /* head of killed object list for size = 2 */
+    word prochead;         /* am of process object */
+    virtaddr procref;    /* process object virtual address */
+    virtaddr template;   /* remote process or procedure template */
+    word c1, c2;               /* pointers to current object */
+    virtaddr backobj;     /* adress of object just left */
+    word blck1, blck2;          /* used for LBLOCK1, LBLOCK2, LBLOCK3 */
+    queue msgqueue;         /* queue of messages for this process */
+    queue rpcwait;           /* queue of disabled RPC messages */
+    stack rpcmask;           /* stack of set of enabled remote procedures */
+    bool force_compactification; /* next allocate will forace compact... */
+    word *hash;                /* table of pointers to processes in process */
+    word hash_size;
+} procdescr;
+
+
+/* Message type : */
+
+#define ERRSIG   0       /* error signal */
+#define RESUME   1       /* resume request */
+#define CREATE   2       /* create new process request */
+#define CREACK   3       /* create process acknowledge */
+#define KILLPR   4       /* kill process */
+#define RPCALL   5       /* remote procedure call request */
+#define RPCACK   6       /* remote procedure return */
+#define ASKPRO   7       /* ask for process prototype */
+#define PROACK   8       /* answer with process prototype */
+
+typedef struct {
+    word node;
+    word pix;
+    word mark;
+} procaddr;
+
+struct ctrlmsg
+{
+    procaddr sender;       /* address of the sender and */
+    procaddr receiver;   /* receiver of the message */
+    int type;      /* message type */
+    int par;         /* prototype or error signal number */
+};
+
+#define MAXPROCPAR      (MSGLENGTH-sizeof(struct ctrlmsg))
+
+typedef struct
+{
+    struct ctrlmsg control;
+    char params[ MAXPROCPAR ];
+} message;
+
+/* Direction of copying of parameters (for moveparams()) : */
+
+#define LOADPAR         0
+#define SAVEPAR         1
+
+typedef char *mask;
+
+extern procdescr process[];     /* process descriptor table              */
+extern procdescr *thisp;        /* pointer to current process descriptor */
+extern word thispix;            /* current process index                 */
+extern queue ready;             /* Round-Robin queue of ready processes  */
+extern bool network;            /* TRUE if operating in D-Link network   */
+extern message globmsgqueue[];  /* queue of waiting messages             */
+extern int msgready;            /* number of waiting messages            */
+extern int msghead, msgtail;    /* pointers to message queue             */
+extern word ournode;            /* this machine node number              */
+extern word console;            /* console node number                   */
+extern bool remote;             /* TRUE if remote node                   */
+extern bool reschedule;         /* TRUE if rescheduling is mandatory     */
+
+#if OS2
+extern PGINFOSEG ginf;          /* pointer to Global Info Segment */
+#endif
+
+
+
+#ifndef NO_PROTOTYPES
+void obj2mess(word *,virtaddr *,procaddr*);
+void mess2obj(procdescr *,procaddr *,virtaddr*);
+bool isprocess(virtaddr *);
+void hash_find(procaddr *,virtaddr *);
+void hash_create(procdescr *,int);
+void hash_set(procaddr *,word);
+#else
+void obj2mess();
+void mess2obj();
+bool isprocess();
+void hash_find();
+void hash_create();
+void hash_set();
+#endif
+