Annotation of OpenXM/src/kxx/nullstackmachine.c, Revision 1.3
1.1 maekawa 1: #include <stdio.h>
2: #include "ox_kan.h"
3: #include "serversm.h"
4: #include <setjmp.h>
5: jmp_buf EnvOfStackMachine; /* dummy data. */
6:
7: int SerialCurrent = -1;
8: int Quiet = 0;
9:
10: void *GC_malloc(n) {
11: return((void *)malloc(n));
12: }
13:
14: /* internal use. */
15: int Sm1_popInt();
16:
17: Sm1_start() {
18: fprintf(stderr,"nullstackmachine: sleep, pstack\n");
19: }
20:
21: int nullCmoGetInt32(ox_stream ostream)
22: {
23: char d[4];
24: int i;
25: for (i=0; i<4; i++) {
26: d[i] = fp2fgetc(ostream);
27: }
28: return(ntohl(* ( (int *)d)));
29: }
30:
31: /* server stack machine */
32: static CMO_Object *LocalStack[200];
33: static int Stackp = 0;
34: void Sm1_pushToLocalStack(CMO_Object *op) {
35: if (Stackp < 200) {
36: LocalStack[Stackp++] = op;
37: }else{
38: fprintf(stderr,"Stack Overflow.\n");
39: }
40: }
41: CMO_Object *Sm1_popFromLocalStack() {
42: fprintf(stderr,"Stackp=%d\n",Stackp);
43: if (Stackp <= 0) {
44: fprintf(stderr,"Stack underflow.\n");
45: return(NULL);
46: }
47: Stackp--;
48: return(LocalStack[Stackp]);
49: }
50:
51: CMO_Object *CMO_new_string(char *s) {
52: CMO_string_object *op;
53: int i;
54: op = (CMO_string_object *)mymalloc(sizeof(CMO_string_object)+strlen(s));
55: op->tag = htonl(CMO_STRING);
56: op->size = htonl(strlen(s)+1);
57: for (i=0; i< strlen(s); i++) {
58: (op->data)[i] = s[i];
59: (op->data)[i+1] = '\0';
60: }
61: return( (CMO_Object *)op);
62: }
63: CMO_Object *CMO_new_int32(int k) {
64: CMO_int32_object *op;
65: int i;
66: op = (CMO_int32_object *)mymalloc(sizeof(CMO_int32_object));
67: op->tag = htonl(CMO_INT32);
68: op->n = k;
69: return( (CMO_Object *)op);
70: }
71: void printCMO_object(FILE *fp,CMO_Object *op)
72: {
73: int n,i;
74: if (op == NULL) {
75: fprintf(fp,"null");
76: }else{
77: switch(ntohl(op->tag)) {
78: case CMO_INT32:
79: fprintf(fp,"%d",((CMO_int32_object *)op)->n);
80: break;
81: case CMO_STRING:
82: n = ntohl(((CMO_string_object *)op)->size);
83: fprintf(stderr,"n=%d :"); fflush(NULL);
84: for (i=0; i<n; i++) {
1.2 takayama 85: fprintf(fp,"%c",((CMO_string_object *)op)->data[i]);
1.1 maekawa 86: }
87: break;
88: default:
89: fprintf(fp,"Unknown object: tag=%d ",ntohl(op->tag));
90: break;
91: }
92: }
93: }
94:
95: void *Sm1_mathcap(void) {
96: int n,i;
97: struct mathCap *mathcap;
98: mathcap = (struct mathCap *) malloc(sizeof(struct mathCap));
99: strcpy(mathcap->name,"nullserver00 Version=0.1");
100: mathcap->version = 199901160;
101: mathcap->cmo[0] = CMO_ERROR2;
102: mathcap->cmo[1] = CMO_NULL;
103: mathcap->cmo[2] = CMO_INT32;
104: mathcap->cmo[3] = CMO_STRING;
105: mathcap->cmo[4] = CMO_LIST;
106: mathcap->n = 5;
107: return((void *)mathcap);
108: }
109: int Sm1_setMathCap(ox_stream os) {
110: fprintf(stderr,"setMathCap is not implemented.\n");
111: return(-1);
112: }
113: void Sm1_pops(void) {
114: int n;
115: n = Sm1_popInt32();
116: Stackp -= n;
117: if (Stackp < 0) Stackp = 0;
118: }
119: int Sm1_executeStringByLocalParser(void) {
120: char *s;
121: CMO_Object *op;
122: int i;
123: s = Sm1_popString();
124: if (s != NULL) {
125: if (strcmp(s,"sleep") == 0) {
126: while (1) {
1.2 takayama 127: fprintf(stderr,"Sleeping... "); fflush(NULL);
128: sleep(10);
1.1 maekawa 129: }
130: }else if (strcmp(s,"pstack") == 0) {
131: fprintf(stderr,"pstack -------------- Stackp = %d\n",Stackp);
132: for (i=Stackp-1; i>=0; i--) {
1.2 takayama 133: printCMO_object(stdout,LocalStack[i]); fprintf(stderr,"\n");
1.1 maekawa 134: }
135: fprintf(stderr,"\n--------------------\n");
136: }else{
137: fprintf(stderr,"Unknown operator: %s\n",s);
138: }
139: }else {
140: fprintf(stderr,"nullstackmachine.c: pop the null string.");
141: }
142: /* Sm1_pushToLocalStack(CMO_new_string(s)); */
143: return(0);
144: }
145: char *Sm1_popString() {
146: CMO_Object *op;
147: CMO_string_object *sop;
148: char *c;
149: op = Sm1_popFromLocalStack();
150: if (op != NULL) {
151: switch(ntohl(op->tag)) {
152: case CMO_INT32:
153: c = (char *)malloc(30);
154: sprintf(c,"%d",((CMO_int32_object *)op)->n);
155: return(c);
156: break;
157: case CMO_STRING:
158: sop = (CMO_string_object *)op;
159: return(sop->data);
160: break;
161: default:
162: fprintf(stderr,"tag error \n");
163: return(NULL);
164: }
165: }else{
166: return(NULL);
167: }
168: }
169:
170: int Sm1_popInt32() {
171: CMO_Object *op;
172: CMO_int32_object *sop;
173: op = Sm1_popFromLocalStack();
174: if (op != NULL) {
175: if (op->tag != htonl(CMO_INT32)) {
176: fprintf(stderr,"Object on the stack is not CMO_INT32. \n");
177: return(0);
178: }
179: sop = (CMO_int32_object *)op;
180: return(sop->n);
181: }else{
182: return(0);
183: }
184: }
185:
186:
187: int Sm1_setName(void)
188: {
189: char *s;
190: s = Sm1_popString();
191: if (s != NULL) fprintf(stderr,"setName %s\n",s);
192: return(-1);
193: }
194:
195: int Sm1_evalName(void)
196: {
197: char *s;
198: s = Sm1_popString();
199: if (s != NULL) fprintf(stderr,"evalName : %s");
200: return(-1);
201: }
202:
203: static int isData(FILE2 *fp)
204: {
205: if (fp->readpos < fp->readsize) return(1);
206: else {
207: return(oxSocketSelect0(fp->fd,0));
208: }
209: }
210:
211: int Sm1_pushCMO(ox_stream ostream) /* old one went to junk.c */
212: {
213: int size;
214: char data[1000];
215: int i;
216: int c,n;
217: if (ostream == NULL || ostream->initialized != 1) {
218: fprintf(stderr,"pushCMO, ostream is not initialized or null.\n");
219: return(-1);
220: }
221: /* Read data from ostream */
222: fprintf(stderr,"----------- CMO data from stream -----------------\n");fflush(NULL);
223: if (isData(ostream) || oxSocketSelect0(ostream->fd,-1)) {
224: c = nullCmoGetInt32(ostream);
225: fprintf(stderr,"cmo tag=%d : ",c);
226: switch(c) {
227: case CMO_ERROR2: fprintf(stderr,"CMO_ERROR2 ;"); break;
228: case CMO_ERROR: fprintf(stderr,"CMO_ERROR ;"); break;
229: case CMO_INT32: fprintf(stderr,"CMO_INT32 ;"); break;
230: case CMO_STRING: fprintf(stderr,"CMO_STRING ;"); break;
231: default: fprintf(stderr,"Unknown"); break;
232: }
233: switch(c) {
234: case CMO_ERROR:
235: break;
236: case CMO_INT32:
237: n = nullCmoGetInt32(ostream);
238: fprintf(stderr,"%d",n);
239: Sm1_pushToLocalStack(CMO_new_int32(n));
240: break;
241: case CMO_STRING:
242: n = nullCmoGetInt32(ostream);
243: fprintf(stderr,"size=%d ",n);
244: if (n > 1000-2) {
1.2 takayama 245: fprintf(stderr," size is too large. \n");
1.1 maekawa 246: }else{
1.2 takayama 247: for (i=0; i<n; i++) {
248: data[i] = fp2fgetc(ostream);
249: data[i+1] = '\0';
250: }
251: fprintf(stderr," string=%s ",data);
252: Sm1_pushToLocalStack(CMO_new_string(data));
1.1 maekawa 253: }
254: break;
255: default:
256: do {
1.2 takayama 257: if ((c = fp2fgetc(ostream)) == EOF) {
258: fprintf(stderr,"pushCMOFromStrem: Select returns 0, but there is no data or unexpected EOF.\n");
259: return(-1);
260: }
261: fprintf(stderr,"%2x ",c);
1.1 maekawa 262: }while(isData(ostream));
263: }
264: }
265: fprintf(stderr,"\n-------------------------------------------------\n"); fflush(NULL);
266: return(0);
267: }
268:
269: int Sm1_popCMO(ox_stream os,int serial)
270: {
271: FILE *fp2;
272: extern int errno;
273: int c;
274: int p;
275: char data[1000];
276:
277: fp2 = fopen("ex1.cmo","r");
278: if (fp2 == NULL) {
279: fprintf(stderr,"popCMO : file ex1.cmo is not found.\n");
280: return(-1);
281: }
282: p = 0;
283: while ((c=fgetc(fp2)) != EOF) {
284: data[p] = c; p++;
285: if (p >= 1000) {fp2write(os,data,1000); p=0;}
286: fprintf(stderr," %2x ",c);
287: }
288: if (p>0) { fp2write(os,data,p); }
289: fp2fflush(os);
290:
291: return(0);
292: }
293:
294: int Sm1_pushError2(int serial,int no,char *s)
295: {
296: fprintf(stderr,"Sm1_pushError2 : [%d,%d,%s] \n",serial,no,s);
297: }
298:
299:
300: /* These are dummy. It is defined in stackmachine.c */
301: unlockCtrlCForOx() { ; }
302: restoreLockCtrlCForOx() { ; }
1.3 ! takayama 303: void cancelAlarm() { ; }
1.1 maekawa 304:
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