===================================================================
RCS file: /home/cvs/OpenXM/src/ox_math/Attic/serv2.c,v
retrieving revision 1.7
retrieving revision 1.18
diff -u -p -r1.7 -r1.18
--- OpenXM/src/ox_math/Attic/serv2.c	1999/11/07 12:12:56	1.7
+++ OpenXM/src/ox_math/Attic/serv2.c	2000/12/03 15:19:23	1.18
@@ -1,312 +1,111 @@
 /* -*- mode: C; coding: euc-japan -*- */
-/* $OpenXM: OpenXM/src/ox_math/serv2.c,v 1.6 1999/11/06 21:39:37 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 "parse.h"
+#include <ox_toolkit.h>
 #include "serv2.h"
 
-#define ERROR_ID_UNKNOWN_SM 10
-#define ERROR_ID_FAILURE_MLINK         11
+extern int flag_mlo_symbol;
 
-/* MLINK はポインタ型. */
-MLINK lp = NULL;
+/* MathLink independent */
+static cmo **stack = NULL;
+static int stack_size = 0;
+static int stack_ptr = 0;
+OXFILE *stack_oxfp = NULL;
 
-typedef cmo mlo;
-typedef cmo_string mlo_string;
-typedef cmo_zz mlo_zz;
+#define DIFFERENCE_OF_STACK  1024
 
-/* cmo_list の派生クラス*/
-typedef struct {
-    int tag;
-    int length;
-    cell head[1];
-    char *function;
-} mlo_function;
-
-
-mlo *receive_mlo_zz()
+static void stack_extend()
 {
-    char *s;
-    mlo  *m;
-
-    fprintf(stderr, "--debug: MLO == MLTKINT.\n");
-    MLGetString(lp, &s);
-    fprintf(stderr, "--debug: zz = %s.\n", s);
-    m = (mlo *)new_cmo_zz_set_string(s);
-    MLDisownString(lp, s);
-    return m;
-}
-
-mlo *receive_mlo_string()
-{
-    char *s;
-    mlo  *m;
-    fprintf(stderr, "--debug: MLO == MLTKSTR.\n");
-    MLGetString(lp, &s);
-    fprintf(stderr, "--debug: string = \"%s\".\n", s);
-    m = (cmo *)new_cmo_string(s);
-    MLDisownString(lp, s);
-    return m;
-}
-
-cmo *receive_mlo_function()
-{
-    char *s;
-    cmo *m;
-    cmo  *ob;
-    int  i,n;
-
-    fprintf(stderr, "--debug: MLO == MLTKFUNC.\n");
-    MLGetFunction(lp, &s, &n);
-    fprintf(stderr, "--debug: Function = \"%s\", # of args = %d\n", s, n);
-    m = new_cmo_list();
-    append_cmo_list((cmo_list *)m, new_cmo_string(s));
-
-    for (i=0; i<n; i++) {
-        fprintf(stderr, "--debug: arg[%d]\n", i);
-        fflush(stderr);
-        ob = receive_mlo();
-        append_cmo_list((cmo_list *)m, ob);
+    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);
     }
-
-    MLDisownString(lp, s);
-    return m;
+    stack_size = newsize;
+    stack = newstack;
 }
 
-cmo *receive_mlo_symbol()
-{
-    cmo *ob;
-    char *s;
-
-    fprintf(stderr, "--debug: MLO == MLTKSYM.\n");
-    MLGetSymbol(lp, &s);
-    fprintf(stderr, "--debug: Symbol \"%s\".\n", s);
-
-    ob = new_cmo_indeterminate(new_cmo_string(s)); 
-
-    MLDisownString(lp, s);
-    return ob;
-}
-
-/* Mathematica を起動する. */
-int MATH_init()
-{
-    int argc = 2;
-    char *argv[] = {"-linkname", "math -mathlink"};
-
-    if(MLInitialize(NULL) == NULL 
-       || (lp = MLOpen(argc, argv)) == NULL) {
-        fprintf(stderr, "Mathematica Kernel not found.\n");
-        exit(1);
-    }
-    return 0;
-}
-
-int MATH_exit()
-{
-    /* quit Mathematica then close the link */
-    MLPutFunction(lp, "Exit", 0);
-    MLClose(lp);
-}
-
-cmo *MATH_get_object()
-{
-    /* skip any packets before the first ReturnPacket */
-    while (MLNextPacket(lp) != RETURNPKT) {
-        usleep(10);
-        MLNewPacket(lp);
-    }
-    return receive_mlo();
-}
-
-cmo *receive_mlo()
-{
-    char *s;
-    int type;
-
-    switch(type = MLGetNext(lp)) {
-    case MLTKINT:
-        return receive_mlo_zz();
-    case MLTKSTR:
-        return receive_mlo_string();
-    case MLTKREAL:
-        /* double はまだ... */
-        fprintf(stderr, "--debug: MLO == MLTKREAL.\n");
-        MLGetString(lp, &s);
-        return (cmo *)new_cmo_string(s);
-    case MLTKSYM:
-        return receive_mlo_symbol();
-    case MLTKFUNC:
-        return receive_mlo_function();
-    case MLTKERR:
-        fprintf(stderr, "--debug: MLO == MLTKERR.\n");
-        return (cmo *)make_error_object(ERROR_ID_FAILURE_MLINK, new_cmo_null());
-    default:
-        fprintf(stderr, "--debug: MLO(%d) is unknown.\n", type);
-        MLGetString(lp, &s);
-        fprintf(stderr, "--debug: \"%s\"\n", s);
-        return (cmo *)new_cmo_string(s);
-    }
-}
-
-int send_mlo_int32(cmo *m)
-{
-    MLPutInteger(lp, ((cmo_int32 *)m)->i);
-}
-
-int send_mlo_string(cmo *m)
-{
-    char *s = ((cmo_string *)m)->s;
-    MLPutString(lp, s);
-    fprintf(stderr, "ox_math:: put %s.", s);
-}
-
-int send_mlo_zz(cmo *m)
-{
-    char *s;
-    MLPutFunction(lp, "ToExpression", 1);
-    s = convert_cmo_to_string(m);
-    MLPutString(lp, s);
-    fprintf(stderr, "put %s.", s);
-}
-
-int send_mlo_list(cmo *c)
-{
-    char *s;
-    cell *cp = ((cmo_list *)c)->head;
-    int len = length_cmo_list((cmo_list *)c);
-
-    fprintf(stderr, "ox_math:: put List with %d args.\n", len);
-    MLPutFunction(lp, "List", len);
-    while(cp->next != NULL) {
-        send_mlo(cp->cmo);
-        cp = cp->next;
-    }
-}
-
-int MATH_sendObject(cmo *m)
-{
-    send_mlo(m);
-    MLEndPacket(lp);
-}
-
-int send_mlo(cmo *m)
-{
-    char *s;
-    switch(m->tag) {
-    case CMO_INT32:
-        send_mlo_int32(m);
-        break;
-    case CMO_STRING:
-        send_mlo_string(m);
-        break;
-    case CMO_LIST:
-        send_mlo_list(m);
-        break;
-    default:
-        MLPutFunction(lp, "ToExpression", 1);
-        s = convert_cmo_to_string(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++) {
-        send_mlo(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
-    symbol *symp;
+    symbol_t symp;
 
     if (m->tag == CMO_STRING) {
         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", symp->key);
+        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");
-        Stack_Pointer--;
+    if (stack_ptr >= stack_size) {
+        stack_extend();
     }
+    stack[stack_ptr] = m;
+    stack_ptr++;
 }
 
-/* スタックが空のときは, (CMO_NULL) をかえす. */
+/* 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 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;
     }
 }
 
-/* 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)
+void push_error(int errcode, cmo* pushback)
 {
+    return push((cmo *)make_error_object(errcode, pushback));
+}
+
+/* 
+   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 *symp = lookup_by_tag(m->tag);
-    
-    fprintf(stderr, "ox_math:: opecode = SM_popCMO. (%s)\n", symp->key);
+    symbol_t symp = lookup_by_tag(m->tag);
+    fprintf(stderr, "ox_math:: opecode = SM_popCMO. (%s)\n", symbol_get_key(symp));
 #endif
+
     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) {
@@ -316,8 +115,8 @@ int sm_pops(int fd_write)
     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 *err;
@@ -329,25 +128,36 @@ int sm_popString(int fd_write)
 
     m = pop();
     if (m->tag == CMO_STRING) {
-        send_ox_cmo(fd_write, m);
-    }else if ((s = convert_cmo_to_string(m)) != NULL) {
-        send_ox_cmo(fd_write, (cmo *)new_cmo_string(s));
+        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(fd_write, err);
+        send_ox_cmo(oxfp, err);
     }
     return 0;
 }
 
 int local_execute(char *s)
 {
+    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;
 }
 
-/* この関数はサーバに依存する. */
-int sm_executeStringByLocalParser(int fd_write)
+/* The following function is depend on an implementation of a server. */
+int sm_executeStringByLocalParser(OXFILE* oxfp)
 {
-    symbol *symp;
+    symbol_t symp;
     cmo* m = pop();
     char *s = NULL;
 #ifdef DEBUG
@@ -357,26 +167,24 @@ int sm_executeStringByLocalParser(int fd_write)
     if (m->tag == CMO_STRING
         && strlen(s = ((cmo_string *)m)->s) != 0) {
         if (s[0] == ':') {
-            local_execute(s);
+            local_execute(++s);
         }else {
             /* for mathematica */
-            /* mathematica に文字列を送って評価させる */
-            MATH_evaluateStringByLocalParser(s);
-            push(MATH_get_object());
+            /* Sending the string `s' to mathematica for its evaluation. */
+            ml_evaluateStringByLocalParser(s);
+            ml_select();
+            push(receive_mlo());
         }
         return 0;
     }
 #ifdef DEBUG
-    if ((symp = lookup_by_tag(m->tag)) != NULL) {
-        fprintf(stderr, "ox_math:: error. the top of stack is %s.\n", symp->key);
-    }else {
-        fprintf(stderr, "ox_math:: error. the top of stack is unknown cmo. (%d)\n", m->tag);
-    }
+    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;
@@ -397,51 +205,67 @@ int sm_executeFunction(int fd_write)
     for (i=0; i<argc; i++) {
         argv[i] = pop();
     }
-    MATH_executeFunction(func, argc, argv);
-    push(MATH_get_object());
+    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)
 {
-    push(make_mathcap_object(VERSION, ID_STRING));
+    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_shutdown:
+        shutdown();
+        break;
     case SM_setMathCap:
-        pop();  /* 無視する */
+        pop();  /* ignore */
         break;
     default:
         fprintf(stderr, "unknown command: %d.\n", code);