===================================================================
RCS file: /home/cvs/OpenXM/src/ox_math/Attic/serv2.c,v
retrieving revision 1.1.1.1
retrieving revision 1.18
diff -u -p -r1.1.1.1 -r1.18
--- OpenXM/src/ox_math/Attic/serv2.c	1999/10/29 08:06:41	1.1.1.1
+++ OpenXM/src/ox_math/Attic/serv2.c	2000/12/03 15:19:23	1.18
@@ -1,283 +1,190 @@
 /* -*- mode: C; coding: euc-japan -*- */
-/* $OpenXM$ */
-/* $Id: serv2.c,v 1.1.1.1 1999/10/29 08:06:41 ohara Exp $ */
+/* $OpenXM: OpenXM/src/ox_math/serv2.c,v 1.17 2000/11/28 20:16:03 ohara Exp $ */
 
-/* Open Mathematica サーバ */
-/* ファイルディスクリプタ 3, 4 は open されていると仮定して動作する. */
+/* 
+   Copyright (C) Katsuyoshi OHARA, 2000.
+   Portions copyright 1999 Wolfram Research, Inc. 
 
-/* MathLink との通信部分 */
+   You must see OpenXM/Copyright/Copyright.generic.
+   The MathLink Library is licensed from Wolfram Research Inc..
+   See OpenXM/Copyright/Copyright.mathlink for detail.
+*/
 
+/* 
+   Remarks: 
+   file descripter 3 and 4 are already opened by the parent process.
+*/
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <gmp.h>
 #include <mathlink.h>
-#include "ox.h"
+#include <ox_toolkit.h>
 #include "serv2.h"
 
-#define UNKNOWN_SM_COMMAND 50000
-#define MATH_ERROR         50001
+extern int flag_mlo_symbol;
 
+/* MathLink independent */
+static cmo **stack = NULL;
+static int stack_size = 0;
+static int stack_ptr = 0;
+OXFILE *stack_oxfp = NULL;
 
-/* MLINK はポインタ型. */
-MLINK lp = NULL;
+#define DIFFERENCE_OF_STACK  1024
 
-/* Mathematica を起動する. */
-int MATH_init()
+static void stack_extend()
 {
-    int argc = 2;
-    char *argv[] = {"-linkname", "math -mathlink"};
-
-    if(MLInitialize(NULL) != NULL) {
-        lp = MLOpen(argc, argv);
-        if(lp != NULL) {
-            return 0;
-        }
+    int newsize = stack_size + DIFFERENCE_OF_STACK;
+    cmo **newstack = (cmo **)malloc(sizeof(cmo *)*newsize);
+    if (stack != NULL) {
+        memcpy(newstack, stack, sizeof(cmo *)*stack_size);
+        free(stack);
     }
-    exit(1);
+    stack_size = newsize;
+    stack = newstack;
 }
 
-int MATH_exit()
-{
-    /* quit Mathematica then close the link */
-    MLPutFunction(lp, "Exit", 0);
-    MLClose(lp);
-}
-
-char *MATH_getObject()
-{
-    char *s;
-
-    /* skip any packets before the first ReturnPacket */
-    while (MLNextPacket(lp) != RETURNPKT) {
-        usleep(10);
-        MLNewPacket(lp);
-    }
-    /* いまはタイプにかかわらず文字列を取得する. */
-    switch(MLGetNext(lp)) {
-    case MLTKINT:
-        fprintf(stderr, "type is INTEGER.\n");
-        MLGetString(lp, &s);
-        break;
-    case MLTKSTR:
-        fprintf(stderr, "type is STRING.\n");
-        MLGetString(lp, &s);
-        break;
-    default:
-        MLGetString(lp, &s);
-    }
-    return s;
-}
-
-cmo *MATH_getObject2()
-{
-    char *s;
-    cmo  *m;
-    char **sp;
-    int  i,n;
-
-    /* skip any packets before the first ReturnPacket */
-    while (MLNextPacket(lp) != RETURNPKT) {
-        usleep(10);
-        MLNewPacket(lp);
-    }
-    /* いまはタイプにかかわらず文字列を取得する. */
-    switch(MLGetNext(lp)) {
-    case MLTKINT:
-        fprintf(stderr, "type is INTEGER.\n");
-        MLGetString(lp, &s);
-        m = (cmo *)new_cmo_zz_set_string(s);
-        break;
-    case MLTKSTR:
-        fprintf(stderr, "type is STRING.\n");
-        MLGetString(lp, &s);
-        m = (cmo *)new_cmo_string(s);
-        break;
-    case MLTKERR:
-        fprintf(stderr, "type is ERROR.\n");
-        m = gen_error_object(MATH_ERROR);
-        break;
-    case MLTKSYM:
-        fprintf(stderr, "MLTKSYM.\n");
-        MLGetString(lp, s);
-        m = (cmo *)new_cmo_string(s);
-        break;
-    case MLTKFUNC:
-        fprintf(stderr, "MLTKFUNC.\n");
-#if DEBUG
-        MLGetString(lp, s);
-        m = (cmo *)new_cmo_string(s);
-        break;
-#endif
-        MLGetFunction(lp, sp, &n);
-        fprintf(stderr, "n = %d\n", n);
-        for (i=0; i<=n; i++) {
-            fprintf(stderr, "%s ");
-        }
-        fprintf(stderr, "\n");
-        m = (cmo *)new_cmo_string(s[0]);
-        break;
-    case MLTKREAL:
-        fprintf(stderr, "MLTKREAL is not supported: we use MLTKSTR.\n");
-        MLGetString(lp, &s);
-        m = (cmo *)new_cmo_string(s);
-        break;
-    default:
-        fprintf(stderr, "unknown type: we use STRING.\n");
-        MLGetString(lp, &s);
-        m = (cmo *)new_cmo_string(s);
-    }
-    return m;
-}
-
-int MATH_sendObject(cmo *m)
-{
-    char *s;
-    switch(m->tag) {
-    case CMO_INT32:
-        MLPutInteger(lp, ((cmo_int32 *)m)->i);
-        break;
-    case CMO_STRING:
-        s = ((cmo_string *)m)->s;
-        MLPutString(lp, s);
-        fprintf(stderr, "put %s.", s);
-        break;
-    default:
-        MLPutFunction(lp, "ToExpression", 1);
-        s = CONVERT_CMO_TO_CSTRING(m);
-        MLPutString(lp, s);
-        fprintf(stderr, "put %s.", s);
-        break;
-    }
-}
-
-int MATH_evaluateStringByLocalParser(char *str)
-{
-    MLPutFunction(lp, "ToExpression", 1);
-    MLPutString(lp, str);
-    MLEndPacket(lp);
-}
-
-int MATH_executeFunction(char *function, int argc, cmo *argv[])
-{
-    int i;
-    MLPutFunction(lp, function, argc);
-    for (i=0; i<argc; i++) {
-        MATH_sendObject(argv[i]);
-    }
-    MLEndPacket(lp);
-}
-
-/* MathLink 非依存部分 */
-
-#define SIZE_OPERAND_STACK   2048
-
-static cmo* Operand_Stack[SIZE_OPERAND_STACK];
-static int Stack_Pointer = 0;
-
-int initialize_stack()
-{
-    Stack_Pointer = 0;
-} 
-
 int push(cmo* m)
 {
 #if DEBUG
-    fprintf(stderr, "server:: a cmo is pushed: tag == %d.\n", m->tag);
+    symbol_t symp;
+
     if (m->tag == CMO_STRING) {
-        fprintf(stderr, "server:: %s\n", ((cmo_string *)m)->s);
+        fprintf(stderr, "ox_math:: a CMO_STRING(%s) was pushed.\n", ((cmo_string *)m)->s);
+    }else {
+        symp = lookup_by_tag(m->tag);
+        fprintf(stderr, "ox_math:: a %s was pushed.\n", symbol_get_key(symp));
     }
 #endif
-    Operand_Stack[Stack_Pointer] = m;
-    Stack_Pointer++;
-    if (Stack_Pointer >= SIZE_OPERAND_STACK) {
-        fprintf(stderr, "stack over flow.\n");
-        exit(1);
+    if (stack_ptr >= stack_size) {
+        stack_extend();
     }
+    stack[stack_ptr] = m;
+    stack_ptr++;
 }
 
-/* エラーのときは NULL を返す */
-/* gen_error_object(SM_popCMO); */
-/* CMO_ERROR2 */
-
+/* if the stack is empty, then pop() returns (CMO_NULL). */
 cmo* pop()
 {
-    if (Stack_Pointer > 0) {
-        Stack_Pointer--;
-        return Operand_Stack[Stack_Pointer];
+    if (stack_ptr > 0) {
+        return stack[--stack_ptr];
     }
-    return NULL;
+    return new_cmo_null();
 }
 
 void pops(int n)
 {
-    Stack_Pointer -= n;
-    if (Stack_Pointer < 0) {
-        Stack_Pointer = 0;
+    stack_ptr -= n;
+    if (stack_ptr < 0) {
+        stack_ptr = 0;
     }
 }
 
+void push_error(int errcode, cmo* pushback)
+{
+    return push((cmo *)make_error_object(errcode, pushback));
+}
 
-/* sm_XXX 関数群は、エラーのときは 0 以外の値を返し、呼び出し元で
-   エラーオブジェクトをセットする */
-int sm_popCMO(int fd_write)
+/* 
+   if error occurs, then a sm_*() function returns non-zero and 
+   an error obect is set by a function which calls sm_*().
+*/
+int sm_popCMO(OXFILE* oxfp)
 {
     cmo* m = pop();
+#ifdef DEBUG
+    symbol_t symp = lookup_by_tag(m->tag);
+    fprintf(stderr, "ox_math:: opecode = SM_popCMO. (%s)\n", symbol_get_key(symp));
+#endif
 
-    fprintf(stderr, "code: SM_popCMO.\n");
     if (m != NULL) {
-        send_ox_cmo(fd_write, m);
+        send_ox_cmo(oxfp, m);
         return 0;
     }
     return SM_popCMO;
 }
 
-int sm_pops(int fd_write)
+int sm_pops(OXFILE* oxfp)
 {
     cmo* m = pop();
     if (m != NULL && m->tag == CMO_INT32) {
         pops(((cmo_int32 *)m)->i);
         return 0;
     }
-    return UNKNOWN_SM_COMMAND;
+    return ERROR_ID_UNKNOWN_SM;
 }
 
-/* MathLink 依存部分 */
-int sm_popString(int fd_write)
+/* MathLink dependent */
+int sm_popString(OXFILE* oxfp)
 {
-    char* s;
-    cmo*  m;
+    char *s;
+    cmo *err;
+    cmo *m;
 
 #ifdef DEBUG
-    fprintf(stderr, "code: SM_popString.\n");
+    fprintf(stderr, "ox_math:: opecode = SM_popString.\n");
 #endif
 
-    if ((m = pop()) != NULL && (s = CONVERT_CMO_TO_CSTRING(m)) != NULL) {
-        send_ox_cmo(fd_write, new_cmo_string(s));
-        return 0;
+    m = pop();
+    if (m->tag == CMO_STRING) {
+        send_ox_cmo(oxfp, m);
+    }else if ((s = new_string_set_cmo(m)) != NULL) {
+        send_ox_cmo(oxfp, (cmo *)new_cmo_string(s));
+    }else {
+        err = make_error_object(SM_popString, m);
+        send_ox_cmo(oxfp, err);
     }
-    return SM_popString;
+    return 0;
 }
 
-/* この関数はサーバに依存する. */
-int sm_executeStringByLocalParser(int fd_write)
+int local_execute(char *s)
 {
-    cmo* m = NULL;
+    if(*s == 'i') {
+        switch(s[1]) {
+        case '+':
+            flag_mlo_symbol = FLAG_MLTKSYM_IS_STRING;
+            break;
+        case '-':
+        case '=':
+        default:
+            flag_mlo_symbol = FLAG_MLTKSYM_IS_INDETERMINATE;
+        }
+    }
+    return 0;
+}
+
+/* The following function is depend on an implementation of a server. */
+int sm_executeStringByLocalParser(OXFILE* oxfp)
+{
+    symbol_t symp;
+    cmo* m = pop();
+    char *s = NULL;
 #ifdef DEBUG
-    fprintf(stderr, "code: SM_executeStringByLocalParser.\n");
+    fprintf(stderr, "ox_math:: opecode = SM_executeStringByLocalParser.\n");
 #endif
-    if ((m = pop()) != NULL && m->tag == CMO_STRING) {
-        /* for mathematica */
-        /* mathematica に文字列を送って評価させる */
-        MATH_evaluateStringByLocalParser(((cmo_string *)m)->s);
-        push(MATH_getObject2());
+
+    if (m->tag == CMO_STRING
+        && strlen(s = ((cmo_string *)m)->s) != 0) {
+        if (s[0] == ':') {
+            local_execute(++s);
+        }else {
+            /* for mathematica */
+            /* Sending the string `s' to mathematica for its evaluation. */
+            ml_evaluateStringByLocalParser(s);
+            ml_select();
+            push(receive_mlo());
+        }
         return 0;
     }
-    fprintf(stderr, "cannot execute: top of stack is not string!(%p, %d)\n", m, m->tag);
+#ifdef DEBUG
+    symp = lookup_by_tag(m->tag);
+    fprintf(stderr, "ox_math:: error. the top of stack is %s.\n", symbol_get_key(symp));
+#endif
     return SM_executeStringByLocalParser;
 }
 
-int sm_executeFunction(int fd_write)
+int sm_executeFunction(OXFILE* oxfp)
 {
     int i, argc;
     cmo **argv;
@@ -292,66 +199,80 @@ int sm_executeFunction(int fd_write)
     if ((m = pop()) == NULL || m->tag != CMO_INT32) {
         return SM_executeFunction;
     }
+
     argc = ((cmo_int32 *)m)->i;
-    argv = malloc(sizeof(cmo *)*argc);
+    argv = malloc(argc*sizeof(cmo *));
     for (i=0; i<argc; i++) {
-        if ((argv[i] = pop()) == NULL) {
-            return SM_executeFunction;
-        }
+        argv[i] = pop();
     }
-    MATH_executeFunction(func, argc, argv);
-    push(MATH_getObject2());
+    ml_executeFunction(func, argc, argv);
+    ml_select();
+    push(receive_mlo());
     return 0;
 }
 
-/* 平成11年10月13日 */
-#define VERSION 0x11102700
-#define ID_STRING  "ox_math server 1999/10/28 17:29:25"
-
-int sm_mathcap(int fd_write)
+int sm_mathcap(OXFILE* oxfp)
 {
-    cmo* c = make_mathcap_object(VERSION, ID_STRING);
-    push(c);
+    push((cmo *)oxf_cmo_mathcap(oxfp));
     return 0;
 }
 
-int receive_sm_command(int fd_read)
+void sm_set_mathcap(OXFILE *oxfp)
 {
-    return receive_int32(fd_read);
+    cmo_mathcap *m = (cmo_mathcap *)pop();
+    if (m->tag == CMO_MATHCAP) {
+        oxf_mathcap_update(oxfp, m);
+    }else {
+        push_error(-1, m);
+        /* an error object must be pushed */
+    }
 }
 
-int execute_sm_command(int fd_write, int code)
+int receive_sm_command(OXFILE* oxfp)
 {
+    return receive_int32(oxfp);
+}
+
+int execute_sm_command(OXFILE* oxfp, int code)
+{
     int err = 0;
+#ifdef DEBUG    
+    symbol_t sp = lookup_by_tag(code);
+    fprintf(stderr, "ox_math:: %s received.\n", symbol_get_key(sp));
+#endif
 
     switch(code) {
     case SM_popCMO:
-        err = sm_popCMO(fd_write);
+        err = sm_popCMO(oxfp);
         break;
     case SM_popString:
-        err = sm_popString(fd_write);
+        err = sm_popString(oxfp);
         break;
     case SM_mathcap:
-        err = sm_mathcap(fd_write);
+        err = sm_mathcap(oxfp);
         break;
     case SM_pops:
-        err = sm_pops(fd_write);
+        err = sm_pops(oxfp);
         break;
     case SM_executeStringByLocalParser:
-        err = sm_executeStringByLocalParser(fd_write);
+    case SM_executeStringByLocalParserInBatchMode:
+        err = sm_executeStringByLocalParser(oxfp);
         break;
     case SM_executeFunction:
-        err = sm_executeFunction(fd_write);
+        err = sm_executeFunction(oxfp);
         break;
-    case SM_setMathcap:
-        pop();  /* 無視する */
+    case SM_shutdown:
+        shutdown();
         break;
+    case SM_setMathCap:
+        pop();  /* ignore */
+        break;
     default:
         fprintf(stderr, "unknown command: %d.\n", code);
-        err = UNKNOWN_SM_COMMAND;
+        err = ERROR_ID_UNKNOWN_SM;
     }
 
     if (err != 0) {
-        push(gen_error_object(err));
+        push((cmo *)make_error_object(err, new_cmo_null()));
     }
 }