From: Rafał Długołęcki <kontakt@dlugolecki.net.pl>
Date: Tue, 16 Jul 2013 16:45:53 +0000 (+0200)
Subject: vlp-10 using coding style in handler.c
X-Git-Tag: 3.1~36
X-Git-Url: https://git.dlugolecki.net.pl/?p=vlp.git;a=commitdiff_plain;h=2196de32cac66d0ec03f1338ae2031fc76eaff2f

vlp-10 using coding style in handler.c
---

diff --git a/src/int/handler.c b/src/int/handler.c
index 7b17627..fa9e2d7 100644
--- a/src/int/handler.c
+++ b/src/int/handler.c
@@ -16,19 +16,17 @@
 #endif
 */
 
-void errsignal(exception)
-int exception;
+void errsignal(int exception)
 {
-    word signum, ah, am;
+	word signum, ah, am;
 
 
-    signum = scot[ exception ];
-    /* A.Salwicki 30 pazdz. 2002 *
-    fprintf(stderr, "\n signum= %ld\n", signum);
-    
-  *    fprintf(stderr, " Wlazl kotek");   *
-    
-    
+	signum = scot[exception];
+	/* A.Salwicki 30 pazdz. 2002 *
+	fprintf(stderr, "\n signum= %ld\n", signum);
+
+	*    fprintf(stderr, " Wlazl kotek");   *
+
     if (signum != -1)                   * attempt to call a handler *
     {
          
@@ -42,184 +40,263 @@ int exception;
         } *
     }
     */
-    
+
 /* A. Salwicki 27-10-2002
 #if MSDOS && !NO_GRAPH
-    {
+	{
 	extern bool graphmode;
 
-	if (graphmode) groff();
+	if (graphmode)
+		groff();
 	graphmode = FALSE;
-    }
+	}
 #endif
 */
 
-    putc('\n', stderr);
-    switch (exception)
-    {
-        case RTESLCOF: fprintf(stderr, " SL CHAIN CUT OFF");                  	break;
-        case RTEUNSTP: fprintf(stderr, " UNIMPLEMENTED STANDARD PROCEDURE");  	break;
-        case RTEILLAT: fprintf(stderr, " ILLEGAL ATTACH");                    	break;
-        case RTEILLDT: fprintf(stderr, " ILLEGAL DETACH");                    	break;
-        case RTECORTM: fprintf(stderr, " COROUTINE TERMINATED");              	break;
-        case RTECORAC: fprintf(stderr, " COROUTINE ACTIVE");                  	break;
-        case RTEINVIN: fprintf(stderr, " ARRAY INDEX ERROR");                 	break;
-        case RTEILLAB: fprintf(stderr, " INCORRECT ARRAY BOUNDS");            	break;
-        case RTEINCQA: fprintf(stderr, " IMPROPER QUA");                      	break;
-        case RTEINCAS: fprintf(stderr, " ILLEGAL ASSIGNMENT");                	break;
-        case RTEFTPMS: fprintf(stderr, " FORMAL TYPE MISSING");               	break;
-        case RTEILLKL: fprintf(stderr, " ILLEGAL KILL");                      	break;
-        case RTEILLCP: fprintf(stderr, " ILLEGAL COPY");                      	break;
-        case RTEINCHS: fprintf(stderr, " INCOMPATIBLE HEADERS");              	break;
-        case RTEHNDNF: fprintf(stderr, " HANDLER NOT FOUND");                 	break;
-        case RTEMEMOV: fprintf(stderr, " MEMORY OVERFLOW");                   	break;
-        case RTEFHTLG: fprintf(stderr, " FORMAL LIST TOO LONG");             	break;
-        case RTEILLRT: fprintf(stderr, " ILLEGAL RETURN");                    	break;
-        case RTEREFTN: fprintf(stderr, " REFERENCE TO NONE");                 	break;
-        case RTEDIVBZ: fprintf(stderr, " DIVISION BY ZERO");                  	break;
-        case RTESYSER: fprintf(stderr, " SYSTEM ERROR");                      	break;
-        case RTEILLIO: fprintf(stderr, " ILLEGAL I/O OPERATION");             	break;
-        case RTEIOERR: fprintf(stderr, " I/O ERROR");                         	break;
-        case RTECNTOP: fprintf(stderr, " CANNOT OPEN FILE");			break;
-        case RTEBADFM: fprintf(stderr, " INPUT DATA FORMAT BAD");		break;
-        case RTEILLRS: fprintf(stderr, " ILLEGAL RESUME");			break;
-        case RTETMPRC: fprintf(stderr, " TOO MANY PROCESSES ON ONE MACHINE");	break;
-        case RTEINVND: fprintf(stderr, " INVALID NODE NUMBER");			break;
-        case RTENEGST: fprintf(stderr, " NEGATIVE STEP VALUE");			break;
-        case RTENONGL: fprintf(stderr, " REFERENCE TO GLOBAL NON PROCESS OBJECT FROM PROCESS");			break;
-        default      : fprintf(stderr, " UNRECOGNIZED ERROR");
-    }
-    if (thisp->trlnumber < 0) thisp->trlnumber = - thisp->trlnumber;
-    if (thisp->trlnumber != 0)
-        fprintf(stderr, "\n AT LINE: %ld\n", (long) thisp->trlnumber);
-    endprocess(4);
-} /* end errsignal */
-
+	putc('\n', stderr);
+	switch (exception) {
+	case RTESLCOF:
+		fprintf(stderr, " SL CHAIN CUT OFF");
+		break;
+	case RTEUNSTP:
+		fprintf(stderr, " UNIMPLEMENTED STANDARD PROCEDURE");
+		break;
+	case RTEILLAT:
+		fprintf(stderr, " ILLEGAL ATTACH");
+		break;
+	case RTEILLDT:
+		fprintf(stderr, " ILLEGAL DETACH");
+		break;
+	case RTECORTM:
+		fprintf(stderr, " COROUTINE TERMINATED");
+		break;
+	case RTECORAC:
+		fprintf(stderr, " COROUTINE ACTIVE");
+		break;
+	case RTEINVIN:
+		fprintf(stderr, " ARRAY INDEX ERROR");
+		break;
+	case RTEILLAB:
+		fprintf(stderr, " INCORRECT ARRAY BOUNDS");
+		break;
+	case RTEINCQA:
+		fprintf(stderr, " IMPROPER QUA");
+		break;
+	case RTEINCAS:
+		fprintf(stderr, " ILLEGAL ASSIGNMENT");
+		break;
+	case RTEFTPMS:
+		fprintf(stderr, " FORMAL TYPE MISSING");
+		break;
+	case RTEILLKL:
+		fprintf(stderr, " ILLEGAL KILL");
+		break;
+	case RTEILLCP:
+		fprintf(stderr, " ILLEGAL COPY");
+		break;
+	case RTEINCHS:
+		fprintf(stderr, " INCOMPATIBLE HEADERS");
+		break;
+	case RTEHNDNF:
+		fprintf(stderr, " HANDLER NOT FOUND");
+		break;
+	case RTEMEMOV:
+		fprintf(stderr, " MEMORY OVERFLOW");
+		break;
+	case RTEFHTLG:
+		fprintf(stderr, " FORMAL LIST TOO LONG");
+		break;
+	case RTEILLRT:
+		fprintf(stderr, " ILLEGAL RETURN");
+		break;
+	case RTEREFTN:
+		fprintf(stderr, " REFERENCE TO NONE");
+		break;
+	case RTEDIVBZ:
+		fprintf(stderr, " DIVISION BY ZERO");
+		break;
+	case RTESYSER:
+		fprintf(stderr, " SYSTEM ERROR");
+		break;
+	case RTEILLIO:
+		fprintf(stderr, " ILLEGAL I/O OPERATION");
+		break;
+	case RTEIOERR:
+		fprintf(stderr, " I/O ERROR");
+		break;
+	case RTECNTOP:
+		fprintf(stderr, " CANNOT OPEN FILE");
+		break;
+	case RTEBADFM:
+		fprintf(stderr, " INPUT DATA FORMAT BAD");
+		break;
+	case RTEILLRS:
+		fprintf(stderr, " ILLEGAL RESUME");
+		break;
+	case RTETMPRC:
+		fprintf(stderr, " TOO MANY PROCESSES ON ONE MACHINE");
+		break;
+	case RTEINVND:
+		fprintf(stderr, " INVALID NODE NUMBER");
+		break;
+	case RTENEGST:
+		fprintf(stderr, " NEGATIVE STEP VALUE");
+		break;
+	case RTENONGL:
+		fprintf(stderr, " REFERENCE TO GLOBAL NON PROCESS OBJECT FROM PROCESS");
+		break;
+	default:
+		fprintf(stderr, " UNRECOGNIZED ERROR");
+	}
+	if (thisp->trlnumber < 0)
+		thisp->trlnumber = -thisp->trlnumber;
+	if (thisp->trlnumber != 0)
+		fprintf(stderr, "\n AT LINE: %ld\n", (long)thisp->trlnumber);
+	endprocess(4);
+}
 
-void raise_signal(signal, skip, ahnew, amnew)	/* Raise exception */
-word signal, skip;
-word *ahnew, *amnew;
+/**
+ * Raise exception
+ */
+void raise_signal(word signal, word skip, word *ahnew, word *amnew)
 {
-    word t1, t2, t3, t4, t5, virts;
-    protdescr *ptr;
-
-    t1 = 0;				/* handler for others = no */
-    t2 = M[ display2+M[ c1+PROTNUM ] ];	/* ah of current */
-    t3 = c1;				/* am of current */
-    t5 = 0;				/* flag handler not found */
-    do
-    {
-        ptr = prototype[ M[ t3+PROTNUM ] ]; /* prototype of current */
-	t4 = ptr->handlerlist;
-	if (t4 != 0)			/* any handlers ? */
-	{
-	    do
-	    {
-	        t5 = M[ t4 ];		/* signal number */
-		if (t5 != signal)
-		{
-		    if (t5 == 0 && t1 == 0) t1 = t4;
-		    t4 = M[ t4+2 ];
+	word t1, t2, t3, t4, t5, virts;
+	protdescr *ptr;
+
+	/* handler for others = no */
+	t1 = 0;
+	/* ah of current */
+	t2 = M[display2 + M[c1 + PROTNUM]];
+	/* am of current */
+	t3 = c1;
+	/* flag handler not found */
+	t5 = 0;
+	do {
+		/* prototype of current */
+		ptr = prototype[M[t3 + PROTNUM]];
+		t4 = ptr->handlerlist;
+		/* any handlers ? */
+		if (t4 != 0) {
+			do {
+				/* signal number */
+				t5 = M[ t4 ];
+				if (t5 != signal) {
+					if (t5 == 0 && t1 == 0)
+						t1 = t4;
+					t4 = M[t4 + 2];
+				}
+			} while (t5 != signal && t4 != 0);
 		}
-	    } while (t5 != signal && t4 != 0);
-	}
-	if (t5 != signal)		/* look in DL or SL */
-	{
-	    if (t1 != 0) t4 = t1;	/* handler for others found */
-	    else
-	    {
-	        t4 = t3+M[ t3 ];
-		if (ptr->kind == HANDLER)
-		    t2 = M[ t4+SL ];	/* use SL for handlers */
-		else
-		    t2 = M[ t4+DL ];	/* or DL for other goodies */
-		if (t2 == 0)		/* handler not found */
-		{
-		    if (signal <= MAXSYSSN)
-		    {			/* system signal */
-		        ic = skip;
-			if (ic != 0) longjmp(contenv, 1);
-			else return;
-		    }
-		    else errsignal(RTEHNDNF);
+		/* look in DL or SL */
+		if (t5 != signal) {
+			/* handler for others found */
+			if (t1 != 0)
+				t4 = t1;
+			else {
+				t4 = t3 + M[t3];
+				if (ptr->kind == HANDLER) {
+					/* use SL for handlers */
+					t2 = M[t4 + SL];
+				} else {
+					/* or DL for other goodies */
+					t2 = M[t4 + DL];
+				}
+				/* handler not found */
+				if (t2 == 0) {
+					/* system signal */
+					if (signal <= MAXSYSSN) {
+						ic = skip;
+						if (ic != 0)
+							longjmp(contenv, 1);
+						else
+							return;
+					}
+					else
+						errsignal(RTEHNDNF);
+				}
+				t3 = M[t2];
+			}
+		} else {
+			t1 = 0;
 		}
-		t3 = M[ t2 ];
-	    }
+	} while (t1 == 0 && t5 != signal);
+
+	virts = thisp->prochead + M[thisp->prochead] + VIRTSC;
+	/* compactification possible */
+	M[virts] = t2;
+	M[virts + 1] = M[t2 + 1];
+	/* prototype number of handler */
+	t3 = M[t4 + 1];
+	t5 = prototype[t3]->appetite;
+	/* others */
+	if (t1 != 0) {
+		request(t5, ahnew, amnew);
+		M[*amnew + M[*amnew] + SIGNR] = 0;
+	} else {
+		if (signal == scot[RTEMEMOV] &&
+				thisp->lastitem - thisp->lastused-1 < t5) {
+			/* make memov look like abort */
+			scot[RTEMEMOV] = -1;
+			errsignal(RTEMEMOV);
+		}
+		request(t5, ahnew, amnew);
+		M[*amnew + M[*amnew] + SIGNR] = signal;
 	}
-	else t1 = 0;
-    } while (t1 == 0 && t5 != signal);
-
-    virts = thisp->prochead+M[ thisp->prochead ]+VIRTSC;
-    M[ virts ] = t2;			/* compactification possible */
-    M[ virts+1 ] = M[ t2+1 ];
-    t3 = M[ t4+1 ];			/* prototype number of handler */
-    t5 = prototype[ t3 ]->appetite;
-    if (t1 != 0)			/* others */
-    {
-        request(t5, ahnew, amnew);
-	M[ *amnew+M[ *amnew ]+SIGNR ] = 0;
-    }
-    else
-    {
-        if (signal == scot[ RTEMEMOV ] &&
-            thisp->lastitem-thisp->lastused-1 < t5)
-	{
-	    scot[ RTEMEMOV ] = -1;	/* make memov look like abort */
-	    errsignal(RTEMEMOV);
+	/* provide system attributes */
+	M[*amnew + PROTNUM] = t3;
+	t5 = *amnew + M[*amnew];
+	M[t5 + SL] = M[virts];
+	M[t5 + SL + 1] = M[virts + 1];
+	/* ah of current */
+	t2 = M[display2 + M[c1 + PROTNUM]];
+	M[t5 + DL] = t2;
+	M[t5 + DL + 1] = M[t2 + 1];
+	/* skip */
+	if (t1 != 0) {
+		ic = skip;
+		go(*ahnew, *amnew);
 	}
-	request(t5, ahnew, amnew);
-	M[ *amnew+M[ *amnew ]+SIGNR ] = signal;
-    }
-    M[ *amnew+PROTNUM ] = t3;		/* provide system attributes */
-    t5 = *amnew+M[ *amnew ];
-    M[ t5+SL ] = M[ virts ];
-    M[ t5+SL+1 ] = M[ virts+1 ];
-    t2 = M[ display2+M[ c1+PROTNUM ] ];	/* ah of current */
-    M[ t5+DL ] = t2;
-    M[ t5+DL+1 ] = M[ t2+1 ];
-    if (t1 != 0)			/* skip */
-    {
-        ic = skip;
-	go(*ahnew, *amnew);
-    }
-} /* end raise_signal */
-
+}
 
 void wind()
 {
-    word t1, t2;
-
-    t1 = M[ M[ c1+M[ c1 ]+SL ] ];	/* am of handlers' SL */
-    t2 = c1;				/* current */
-    while (TRUE)
-    {
-        t2 = M[ M[ t2+M[ t2 ]+DL ] ];	/* am of DL */
-	if (t2 == t1) break;
-	M[ t2+M[ t2 ]+LSC ] = prototype[ M[ t2+PROTNUM ] ]->lastwill;
-    }
-    back(&thisp->backobj, &M[ temporary ], (word) 0);
-} /* end wind */
+	word t1, t2;
 
+	/* am of handlers' SL */
+	t1 = M[M[c1 + M[c1] + SL]];
+	/* current */
+	t2 = c1;
+	while (TRUE) {
+		/* am of DL */
+		t2 = M[M[t2 + M[t2] + DL]];
+		if (t2 == t1)
+			break;
+		M[t2 + M[t2] + LSC] = prototype[M[t2 + PROTNUM]]->lastwill;
+	}
+	back(&thisp->backobj, &M[ temporary ], (word) 0);
+}
 
 void term()
 {
-    word t1;
+	word t1;
 
-    t1 = M[ M[ c1+M[ c1 ]+SL ] ];	/* am of handlers' SL */
-    M[ t1+M[ t1 ]+LSC ] = prototype[ M[ t1+PROTNUM ] ]->lastwill;
-    wind();
-} /* end term */
+	/* am of handlers' SL */
+	t1 = M[M[c1 + M[c1] + SL]];
+	M[t1 + M[t1] + LSC] = prototype[M[t1 + PROTNUM]]->lastwill;
+	wind();
+}
 
-
-/* This wraps up the above series of the handler procedures.
+/*
+ * This wraps up the above series of the handler procedures.
  */
-
-void backhd(virt, am)
-virtaddr *virt;
-word *am;
+ 
+void backhd(virtaddr *virt, word *am)
 {
-    if (M[ c1+M[ c1 ]+SIGNR ] <= MAXSYSSN)
-        errsignal(RTEILLRT);		/* illegal return */
-    else
-        back(virt, am, (word) 0);
-} /* end backhd */
+	if (M[c1 + M[c1] + SIGNR] <= MAXSYSSN) {
+		/* illegal return */
+		errsignal(RTEILLRT);
+	}
+	else {
+		back(virt, am, (word) 0);
+	}
+}