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Annotation of OpenXM/src/ox_math/ox.c, Revision 1.2

1.1       ohara       1: /* -*- mode: C; coding: euc-japan -*- */
                      2: /* $OpenXM$ */
1.2     ! ohara       3: /* $Id: ox.c,v 1.7 1999/11/01 17:58:47 ohara Exp $ */
1.1       ohara       4:
                      5: /*
                      6: 関数の名前付け規約(その2):
                      7: (1) receive_cmo 関数はCMOタグとデータ本体を受信する. この関数は CMOタグの
                      8: 値が事前に分からないときに使用する. 返り値として、cmo へのポインタを返す.
                      9: (2) receive_cmo_XXX 関数は, CMOタグを親の関数で受信してから呼び出される関
                     10: 数で、データ本体のみを受信し、cmo_XXX へのポインタを返す.  しかも、
                     11: 関数内部で new_cmo_XXX 関数を呼び出す.
                     12: (3) send_cmo 関数はCMOタグとデータ本体を送信する.
                     13: (4) send_cmo_XXX 関数はCMOタグを親の関数で送信してから呼び出される関数で、
                     14: データ本体のみを送信する.
                     15:
                     16: ----
                     17: (5) receive_ox_XXX 関数は存在しない(作らない).  receive_cmo を利用する.
                     18: (6) send_ox_XXX 関数は OX タグを含めて送信する.
                     19: (7) ox_XXX 関数は一連の送受信を含むより抽象的な操作を表現する.
                     20: ox_XXX 関数は、第一引数として、ox_file_t型の変数 sv をとる.
                     21:
                     22: (8) YYY_cmo 関数と YYY_cmo_XXX 関数の関係は次の通り:
                     23: まず YYY_cmo 関数で cmo のタグを処理し、タグを除いた残りの部分を
                     24: YYY_cmo_XXX 関数が処理する.  cmo の内部に cmo_ZZZ へのポインタが
                     25: あるときには、その種類によらずに YYY_cmo 関数を呼び出す.
                     26: */
                     27:
                     28: #include <stdio.h>
                     29: #include <stdlib.h>
                     30: #include <string.h>
                     31: #include <unistd.h>
                     32: #include <errno.h>
                     33: #include <fcntl.h>
                     34: #include <gmp.h>
                     35:
                     36: #include "mysocket.h"
                     37: #include "ox.h"
                     38: #include "parse.h"
                     39:
                     40: static int          cmolen_cmo_int32(cmo_int32* c);
                     41: static int          cmolen_cmo_list(cmo_list* c);
                     42: static int          cmolen_cmo_mathcap(cmo_mathcap* c);
                     43: static int          cmolen_cmo_null(cmo_null* c);
                     44: static int          cmolen_cmo_string(cmo_string* c);
                     45: static int          cmolen_cmo_zz(cmo_zz* c);
1.2     ! ohara      46: static int          cmolen_cmo_monomial32(cmo_monomial32* c);
1.1       ohara      47:
                     48: static char*        dump_cmo_int32(char* array, cmo_int32* m);
                     49: static char*        dump_cmo_list(char* array, cmo_list* m);
                     50: static char*        dump_cmo_mathcap(char* array, cmo_mathcap* m);
                     51: static char*        dump_cmo_null(char* array, cmo_null* m);
                     52: static char*        dump_cmo_string(char* array, cmo_string* m);
1.2     ! ohara      53: static char*        dump_cmo_monomial32(char* array, cmo_monomial32* c);
1.1       ohara      54: static char*        dump_cmo_zz(char* array, cmo_zz* c);
                     55: static char*        dump_integer(char* array, int x);
                     56: static char*        dump_mpz(char* array, mpz_ptr mpz);
                     57:
                     58: static int          funcs(int cmo_type);
                     59:
1.2     ! ohara      60: /* CMO_xxx の値順にならべること(デバッグのため) */
1.1       ohara      61: static int          read_password(int fd, char* passwd);
1.2     ! ohara      62: static cmo_null*    receive_cmo_null(int fd);
1.1       ohara      63: static cmo_int32*   receive_cmo_int32(int fd);
1.2     ! ohara      64: static cmo_string*  receive_cmo_string(int fd);
        !            65: static cmo_mathcap* receive_cmo_mathcap(int fd);
1.1       ohara      66: static cmo_list*    receive_cmo_list(int fd);
                     67: static cmo_zz*      receive_cmo_zz(int fd);
1.2     ! ohara      68: static cmo_zero*    receive_cmo_zero(int fd);
        !            69: static cmo_dms_generic* receive_cmo_dms_generic(int fd);
        !            70: static cmo_error2*  receive_cmo_error2(int fd);
1.1       ohara      71: static void         receive_mpz(int fd, mpz_ptr mpz);
                     72:
1.2     ! ohara      73: static int          send_cmo_null(int fd, cmo_null* c);
1.1       ohara      74: static int          send_cmo_int32(int fd, cmo_int32* m);
1.2     ! ohara      75: static int          send_cmo_string(int fd, cmo_string* m);
        !            76: static int          send_cmo_mathcap(int fd, cmo_mathcap* c);
1.1       ohara      77: static int          send_cmo_list(int fd, cmo_list* c);
                     78: static int          send_cmo_zz(int fd, cmo_zz* c);
1.2     ! ohara      79: static int          send_cmo_error2(int fd, cmo_error2* c);
1.1       ohara      80: static int          send_mpz(int fd, mpz_ptr mpz);
                     81:
                     82:
                     83: /* エラーハンドリングのため */
                     84: static int current_received_serial = 0;
                     85:
                     86: /* エラーを起こしたときはサーバは次のようにすればよい.  */
1.2     ! ohara      87: cmo_error2* gen_error_object(int err_code)
1.1       ohara      88: {
                     89:     cmo_list* li = new_cmo_list();
                     90:     append_cmo_list(li, (cmo *)new_cmo_int32(current_received_serial));
                     91:     append_cmo_list(li, (cmo *)new_cmo_int32(err_code));
                     92:     /* 他の情報を加えるならココ */
1.2     ! ohara      93:     return new_cmo_error2((cmo *)li);
1.1       ohara      94: }
                     95:
                     96: /* add at Mon Sep  7 15:51:28 JST 1998 */
                     97: #define DEFAULT_SERIAL_NUMBER 0x0000ffff
                     98: #define receive_serial_number(x)   (receive_int32(x))
                     99:
                    100: /* 新しいシリアル番号を得る */
                    101: int next_serial()
                    102: {
                    103:     static int serial_number = DEFAULT_SERIAL_NUMBER;
                    104:     return serial_number++;
                    105: }
                    106:
                    107: /* int32 型のオブジェクトを送信する.  */
                    108: int send_int32(int fd, int int32)
                    109: {
                    110:     int32 = htonl(int32);
                    111:     return write(fd, &int32, sizeof(int));
                    112: }
                    113:
                    114: /* int32 型のオブジェクトを受信する.  */
                    115: int receive_int32(int fd)
                    116: {
                    117:     int tag;
                    118:     read(fd, &tag, sizeof(int));
                    119:     return ntohl(tag);
                    120: }
                    121:
                    122: /* (OX_tag, serial number) を受信する.  */
                    123: int receive_ox_tag(int fd)
                    124: {
                    125:     int serial;
                    126:     int tag = receive_int32(fd);
                    127:     current_received_serial = receive_serial_number(fd);
                    128:     return tag;
                    129: }
                    130:
                    131: /* (OX_tag, serial number) を送信する.   */
                    132: int send_ox_tag(int fd, int tag)
                    133: {
                    134:     send_int32(fd, tag);
                    135:     return send_int32(fd, next_serial());
                    136: }
                    137:
                    138:
                    139: /* CMO_LIST 関係の関数群 */
                    140: cell* new_cell(cmo* newcmo)
                    141: {
                    142:     cell* h = malloc(sizeof(cell));
                    143:     h->next = NULL;
                    144:     h->cmo  = newcmo;
                    145:     return h;
                    146: }
                    147:
1.2     ! ohara     148: cell* next_cell(cell* this)
        !           149: {
        !           150:     return this->next;
        !           151: }
        !           152:
1.1       ohara     153: static cell* *tailp(cmo_list* this) {
                    154:     cell **cp = &this->head;
                    155:     while (*cp != NULL) {
                    156:         cp = &((*cp)->next);
                    157:     }
                    158:     return cp;
                    159: }
                    160:
                    161: int length_cmo_list(cmo_list* this)
                    162: {
                    163:     return this->length;
                    164: }
                    165:
                    166: int append_cmo_list(cmo_list* this, cmo* newcmo)
                    167: {
                    168:     /* リストの最後尾のNULLを保持している変数へのポインタ */
                    169:     cell **cp = tailp(this);
                    170:     *cp = new_cell(newcmo);
                    171:     this->length++;
                    172:     return 0;
                    173: }
                    174:
                    175: /** receive_cmo_XXX 関数群 **/
1.2     ! ohara     176: static cmo_null* receive_cmo_null(int fd)
1.1       ohara     177: {
1.2     ! ohara     178:     return new_cmo_null();
1.1       ohara     179: }
                    180:
                    181: static cmo_int32* receive_cmo_int32(int fd)
                    182: {
                    183:     int i = receive_int32(fd);
                    184:     return new_cmo_int32(i);
                    185: }
                    186:
1.2     ! ohara     187: static cmo_string* receive_cmo_string(int fd)
        !           188: {
        !           189:     int len = receive_int32(fd);
        !           190:     char* s = malloc(len+1);
        !           191:     memset(s, '\0', len+1);
        !           192:     if (len > 0) {
        !           193:         read(fd, s, len);
        !           194:     }
        !           195:     return new_cmo_string(s);
        !           196: }
        !           197:
        !           198: static cmo_mathcap* receive_cmo_mathcap(int fd)
        !           199: {
        !           200:     cmo* ob = receive_cmo(fd);
        !           201:     return new_cmo_mathcap(ob);
        !           202: }
        !           203:
1.1       ohara     204: static cmo_list* receive_cmo_list(int fd)
                    205: {
                    206:     cmo* newcmo;
                    207:     cmo_list* c = new_cmo_list();
                    208:     int len = receive_int32(fd);
                    209:
                    210:     while (len>0) {
                    211:         newcmo = receive_cmo(fd);
                    212:         append_cmo_list(c, newcmo);
                    213:         len--;
                    214:     }
                    215:     return c;
                    216: }
                    217:
1.2     ! ohara     218: static cmo_zz* receive_cmo_zz(int fd)
        !           219: {
        !           220:     cmo_zz* c = new_cmo_zz();
        !           221:     receive_mpz(fd, c->mpz);
        !           222:     return c;
        !           223: }
        !           224:
        !           225: static cmo_zero* receive_cmo_zero(int fd)
1.1       ohara     226: {
1.2     ! ohara     227:     return new_cmo_zero();
1.1       ohara     228: }
                    229:
1.2     ! ohara     230: static cmo_dms_generic* receive_cmo_dms_generic(int fd)
1.1       ohara     231: {
1.2     ! ohara     232:     return new_cmo_dms_generic();
1.1       ohara     233: }
                    234:
1.2     ! ohara     235: static cmo_ring_by_name* receive_cmo_ring_by_name(int fd)
1.1       ohara     236: {
1.2     ! ohara     237:     cmo* ob = receive_cmo(fd);
        !           238:        /* 意味的チェックが必要 */
        !           239:     return new_cmo_ring_by_name(ob);
1.1       ohara     240: }
                    241:
1.2     ! ohara     242: static cmo_error2* receive_cmo_error2(int fd)
1.1       ohara     243: {
1.2     ! ohara     244:     cmo* ob = receive_cmo(fd);
        !           245:     return new_cmo_error2(ob);
1.1       ohara     246: }
                    247:
                    248: static void receive_mpz(int fd, mpz_ptr mpz)
                    249: {
                    250:     int i;
                    251:     int size  = receive_int32(fd);
                    252:     int len   = abs(size);
                    253:     resize_mpz(mpz, size);
                    254:
                    255:     for(i=0; i<len; i++) {
                    256:         mpz->_mp_d[i] = receive_int32(fd);
                    257:     }
                    258: }
                    259:
                    260: void resize_mpz(mpz_ptr mpz, int size)
                    261: {
                    262:     _mpz_realloc(mpz, abs(size));
                    263:     mpz->_mp_size = size;
                    264: }
                    265:
                    266: /** new_cmo_XXX 関数群 **/
1.2     ! ohara     267: cmo_null* new_cmo_null()
1.1       ohara     268: {
1.2     ! ohara     269:     cmo_null* m = malloc(sizeof(cmo_null));
        !           270:     m->tag = CMO_NULL;
        !           271:     return m;
1.1       ohara     272: }
                    273:
                    274: cmo_int32* new_cmo_int32(int i)
                    275: {
                    276:     cmo_int32* c;
                    277:     c = malloc(sizeof(cmo_int32));
                    278:     c->tag     = CMO_INT32;
                    279:     c->i = i;
                    280:     return c;
                    281: }
                    282:
1.2     ! ohara     283: cmo_string* new_cmo_string(char* s)
        !           284: {
        !           285:     cmo_string* c = malloc(sizeof(cmo_string));
        !           286:        char *s2 = malloc(strlen(s)+1);
        !           287:        strcpy(s2, s);
        !           288:
        !           289:     c->tag = CMO_STRING;
        !           290:     c->s   = s2;
        !           291:     return c;
        !           292: }
        !           293:
        !           294: cmo_mathcap* new_cmo_mathcap(cmo* ob)
        !           295: {
        !           296:     cmo_mathcap* c = malloc(sizeof(cmo_mathcap));
        !           297:     c->tag = CMO_MATHCAP;
        !           298:     c->ob  = ob;
        !           299:     return c;
        !           300: }
        !           301:
1.1       ohara     302: cmo_list* new_cmo_list()
                    303: {
                    304:     cmo_list* c = malloc(sizeof(cmo_list));
                    305:     c->tag    = CMO_LIST;
                    306:     c->length = 0;
                    307:     c->head   = NULL;
                    308:     return c;
                    309: }
                    310:
1.2     ! ohara     311: cmo_monomial32* new_cmo_monomial32()
1.1       ohara     312: {
1.2     ! ohara     313:     cmo_monomial32* c = malloc(sizeof(cmo_monomial32));
        !           314:     c->tag  = CMO_MONOMIAL32;
1.1       ohara     315:     return c;
                    316: }
                    317:
1.2     ! ohara     318: cmo_monomial32* new_cmo_monomial32_size(int size)
1.1       ohara     319: {
1.2     ! ohara     320:     cmo_monomial32* c = new_cmo_monomial32();
        !           321:        if (size>0) {
        !           322:                c->length = size;
        !           323:                c->exps = malloc(sizeof(int)*size);
        !           324:        }
1.1       ohara     325:     return c;
                    326: }
                    327:
                    328: cmo_zz* new_cmo_zz()
                    329: {
                    330:     cmo_zz* c = malloc(sizeof(cmo_zz));
                    331:     c->tag  = CMO_ZZ;
                    332:     mpz_init(c->mpz);
                    333:     return c;
                    334: }
                    335:
                    336: cmo_zz* new_cmo_zz_noinit()
                    337: {
                    338:     cmo_zz* c = malloc(sizeof(cmo_zz));
                    339:     c->tag  = CMO_ZZ;
                    340:     return c;
                    341: }
                    342:
                    343: cmo_zz* new_cmo_zz_set_si(int i)
                    344: {
                    345:     cmo_zz* c = new_cmo_zz();
                    346:     mpz_set_si(c->mpz, i);
                    347:     return c;
                    348: }
                    349:
                    350: cmo_zz* new_cmo_zz_size(int size)
                    351: {
                    352:     cmo_zz* c = new_cmo_zz();
                    353:     resize_mpz(c->mpz, size);
                    354:     return c;
                    355: }
                    356:
1.2     ! ohara     357: cmo_zero* new_cmo_zero()
        !           358: {
        !           359:     cmo_zero* m = malloc(sizeof(cmo_zero));
        !           360:     m->tag = CMO_ZERO;
        !           361:     return m;
        !           362: }
        !           363:
        !           364: cmo_dms_generic* new_cmo_dms_generic()
        !           365: {
        !           366:     cmo_dms_generic* m = malloc(sizeof(cmo_dms_generic));
        !           367:     m->tag = CMO_DMS_GENERIC;
        !           368:     return m;
        !           369: }
        !           370:
        !           371: cmo_ring_by_name* new_cmo_ring_by_name(cmo* ob)
        !           372: {
        !           373:     cmo_ring_by_name* c = malloc(sizeof(cmo_ring_by_name));
        !           374:     c->tag = CMO_RING_BY_NAME;
        !           375:     c->ob  = ob;
        !           376:     return c;
        !           377: }
        !           378:
        !           379: cmo_indeterminate* new_cmo_indeterminate(cmo* ob)
        !           380: {
        !           381:     cmo_indeterminate* c = malloc(sizeof(cmo_indeterminate));
        !           382:     c->tag = CMO_INDETERMINATE;
        !           383:     c->ob  = ob;
        !           384:     return c;
        !           385: }
        !           386:
        !           387: cmo_error2* new_cmo_error2(cmo* ob)
        !           388: {
        !           389:     cmo_error2* c = malloc(sizeof(cmo_error2));
        !           390:     c->tag = CMO_ERROR2;
        !           391:     c->ob  = ob;
        !           392:     return c;
        !           393: }
        !           394:
1.1       ohara     395: /* receive_ox_tag() == OX_DATA の後に呼び出される */
                    396: /* 関数ポインタを使った方がきれいに書けるような気がする.  */
                    397: /* if (foo[tag] != NULL) foo[tag](fd); とか */
                    398:
                    399: cmo* receive_cmo(int fd)
                    400: {
                    401:     cmo* m;
                    402:     int tag;
                    403:     tag = receive_int32(fd);
                    404:
                    405:     switch(tag) {
                    406:     case CMO_NULL:
                    407:         m = receive_cmo_null(fd);
                    408:         break;
                    409:     case CMO_INT32:
                    410:         m = (cmo *)receive_cmo_int32(fd);
                    411:         break;
                    412:     case CMO_STRING:
                    413:         m = (cmo *)receive_cmo_string(fd);
                    414:         break;
1.2     ! ohara     415:     case CMO_MATHCAP:
        !           416:         m = (cmo *)receive_cmo_mathcap(fd);
1.1       ohara     417:         break;
                    418:     case CMO_LIST:
                    419:         m = (cmo *)receive_cmo_list(fd);
                    420:         break;
1.2     ! ohara     421:     case CMO_ZZ:
        !           422:         m = (cmo *)receive_cmo_zz(fd);
1.1       ohara     423:         break;
                    424:     case CMO_ERROR2:
1.2     ! ohara     425:         m = (cmo *)receive_cmo_error2(fd);
1.1       ohara     426:         break;
                    427:     case CMO_DATUM:
                    428:     case CMO_QQ:
                    429:     case CMO_ZERO:
                    430:     case CMO_DMS:
                    431:     default:
                    432:         fprintf(stderr, "unknown cmo-type: tag = (%d)\n", m->tag);
                    433:     }
                    434:     return m;
                    435: }
                    436:
                    437: void send_ox_command(int fd, int sm_command)
                    438: {
                    439:     send_ox_tag(fd, OX_COMMAND);
                    440:     send_int32(fd, sm_command);
                    441: }
                    442:
                    443: int print_cmo(cmo* c)
                    444: {
                    445:     int tag = c->tag;
                    446:     fprintf(stderr, "local::tag = (%d): ", tag);
                    447:     switch(tag) {
                    448:     case CMO_LIST:
                    449:         print_cmo_list((cmo_list *)c);
                    450:         break;
                    451:     case CMO_INT32:
                    452:         print_cmo_int32((cmo_int32 *)c);
                    453:         break;
                    454:     case CMO_MATHCAP:
                    455:         print_cmo_mathcap((cmo_mathcap *)c);
                    456:         break;
                    457:     case CMO_STRING:
                    458:         print_cmo_string((cmo_string *)c);
                    459:         break;
                    460:     case CMO_NULL:
                    461:         fprintf(stderr, "\n");
                    462:         break;
                    463:     default:
                    464:         fprintf(stderr, "print_cmo() does not know how to print.\n");
                    465:     }
                    466: }
                    467:
                    468: int print_cmo_int32(cmo_int32* c)
                    469: {
                    470:     fprintf(stderr, "cmo_int32 = (%d)\n", c->i);
                    471: }
                    472:
                    473: int print_cmo_list(cmo_list* li)
                    474: {
                    475:     cell* cp = li->head;
                    476:     fprintf(stderr, "length = (%d)\nlist:\n", li->length);
                    477:     while(cp != NULL) {
                    478:         print_cmo(cp->cmo);
                    479:         cp=cp->next;
                    480:     }
                    481:     fprintf(stderr, "end of list\n");
                    482: }
                    483:
                    484: int print_cmo_mathcap(cmo_mathcap* c)
                    485: {
                    486:     fprintf(stderr, "\n");
1.2     ! ohara     487:     print_cmo(c->ob);
1.1       ohara     488: }
                    489:
                    490: int print_cmo_string(cmo_string* c)
                    491: {
                    492:     fprintf(stderr, "cmo_string = (%s)\n", c->s);
                    493: }
                    494:
                    495: /* ox_start() から呼び出す */
                    496: static int read_password(int fd, char* passwd)
                    497: {
                    498:     char buff[1024];
                    499:     int n;
                    500:     if ((n = read(fd, buff, 1024)) != strlen(passwd)) {
                    501:         fprintf(stderr, "Socket#%d: Login incorrect.\n", fd);
                    502:         fprintf(stderr, "password = (%s), received = (%s).\n", passwd, buff);
                    503:         fprintf(stderr, "         = (%d), received = (%d).\n", strlen(passwd), n);
                    504:     }
                    505:     fflush(stderr);
                    506: }
                    507:
                    508: void ox_close(ox_file_t sv)
                    509: {
                    510:     send_ox_command(sv->control, SM_control_kill);
                    511: #if DEBUG
                    512:     sleep(2); /* OpenXM server の終了を待つ. あまり意味はない. */
                    513:     fprintf(stderr, "I have closed an Open XM server.\n");
                    514: #endif
                    515: }
                    516:
                    517: void ox_executeStringByLocalParser(ox_file_t sv, char* s)
                    518: {
                    519:     /* 文字列ををスタックにプッシュ. */
                    520:     send_ox_cmo(sv->stream, (cmo *)new_cmo_string(s));
                    521:
                    522:     /* サーバに実行させる. */
                    523:     send_ox_command(sv->stream, SM_executeStringByLocalParser);
                    524: }
                    525:
                    526: /* ox_mathcap() をコールする.  */
                    527: cmo_mathcap* ox_mathcap(ox_file_t sv)
                    528: {
                    529:     send_ox_command(sv->stream, SM_mathcap);
                    530:     send_ox_command(sv->stream, SM_popCMO);
                    531:     receive_ox_tag(sv->stream);          /* OX_DATA */
                    532:     return (cmo_mathcap *)receive_cmo(sv->stream);
                    533: }
                    534:
                    535: char* ox_popString(ox_file_t sv, int fd)
                    536: {
                    537:     cmo_string* m = NULL;
                    538:
                    539:     send_ox_command(fd, SM_popString);
                    540:     receive_ox_tag(fd); /* OX_DATA */
                    541:     m = (cmo_string *)receive_cmo(fd);
                    542:     return m->s;
                    543: }
                    544:
                    545: cmo* ox_pop_cmo(ox_file_t sv, int fd)
                    546: {
                    547:     send_ox_command(fd, SM_popCMO);
                    548:     receive_ox_tag(fd); /* OX_DATA */
                    549:     return receive_cmo(fd);
                    550: }
                    551:
                    552: /*
                    553:    ox_start は クライアントが呼び出すための関数である.
                    554:    サーバでは使われない.  prog1 は コントロールサーバであり,
                    555:    -ox, -reverse, -data, -control, -pass, -host
                    556:    というオプションを理解することを仮定する. prog2 は計算サーバである.
                    557:    接続時には, sv->control を先にオープンする.
                    558: */
                    559:
                    560: ox_file_t ox_start(char* host, char* prog1, char* prog2)
                    561: {
                    562:     static char pass[] = "passwd";
                    563:     char ctl[16], dat[16];
                    564:     short portControl = 0; /* short であることに注意 */
                    565:     short portStream  = 0;
                    566:     ox_file_t sv = malloc(sizeof(__ox_file_struct));
                    567:
                    568:     sv->control = mysocketListen(host, &portControl);
                    569:     sv->stream  = mysocketListen(host, &portStream);
                    570:     sprintf(ctl, "%d", portControl);
                    571:     sprintf(dat, "%d", portStream);
                    572:
                    573:     if (fork() == 0) {
                    574:         dup2(2, 1);
                    575:         dup2(open(DEFAULT_LOGFILE, O_RDWR|O_CREAT|O_TRUNC, 0644), 2);
                    576:         execl(prog1, prog1, "-reverse", "-ox", prog2,
                    577:               "-data", dat, "-control", ctl, "-pass", pass,
                    578:               "-host", host, NULL);
                    579:     }
                    580:
                    581:     sv->control = mysocketAccept(sv->control);
                    582:     read_password(sv->control, pass);
                    583:     decideByteOrder(sv->control, sv->control, 0);
                    584:     usleep(10);
                    585:     sv->stream  = mysocketAccept(sv->stream);
                    586:     read_password(sv->stream, pass);
                    587:     decideByteOrder(sv->stream, sv->stream, 0);
                    588:
                    589:     return sv;
                    590: }
                    591:
                    592: void ox_reset(ox_file_t sv)
                    593: {
                    594:     send_ox_command(sv->control, SM_control_reset_connection);
                    595:
                    596:     receive_ox_tag(sv->control);      /* OX_DATA */
                    597:     receive_cmo(sv->control);         /* (CMO_INT32, 0) */
                    598:
                    599:     while(receive_ox_tag(sv->stream) != OX_SYNC_BALL) {
                    600:         receive_cmo(sv->stream); /* skipping a message. */
                    601:     }
                    602:
                    603:     send_ox_tag(sv->stream, OX_SYNC_BALL);
                    604: #if DEBUG
                    605:     fprintf(stderr, "I have reset an Open XM server.\n");
                    606: #endif
                    607: }
                    608:
1.2     ! ohara     609: /* 以下は bconv.c で必要とする関数群である. */
        !           610:
        !           611: /* cmolen 関数は cmo の(送信時の)バイト長を返す. */
        !           612: /* cmolen_XXX 関数は cmo_XXX の tag を除いたバイト長を返す. */
        !           613:
        !           614: static int cmolen_cmo_null(cmo_null* c)
        !           615: {
        !           616:     return 0;
        !           617: }
1.1       ohara     618:
                    619: static int cmolen_cmo_int32(cmo_int32* c)
                    620: {
                    621:     return sizeof(int);
                    622: }
                    623:
1.2     ! ohara     624: static int cmolen_cmo_string(cmo_string* c)
        !           625: {
        !           626:     return sizeof(int)+strlen(c->s);
        !           627: }
        !           628:
        !           629: static int cmolen_cmo_mathcap(cmo_mathcap* c)
        !           630: {
        !           631:     return cmolen_cmo(c->ob);
        !           632: }
        !           633:
1.1       ohara     634: static int cmolen_cmo_list(cmo_list* c)
                    635: {
                    636:     int size = sizeof(c->head);
                    637:     cell* cp = c->head;
                    638:
                    639:     while(cp != NULL) {
                    640:         size += cmolen_cmo(cp->cmo);
                    641:         cp = cp->next;
                    642:     }
                    643:     return size;
                    644: }
                    645:
1.2     ! ohara     646: static int cmolen_cmo_monomial32(cmo_monomial32* c)
1.1       ohara     647: {
1.2     ! ohara     648:        int len = (c->length + 1)*sizeof(int);
        !           649:        return len + cmolen_cmo(c->coef);
1.1       ohara     650: }
                    651:
                    652: static int cmolen_cmo_zz(cmo_zz* c)
                    653: {
                    654:     int len = abs(c->mpz->_mp_size);
                    655:     return sizeof(len) + len*sizeof(int);
                    656: }
                    657:
                    658: /* CMO がバイトエンコードされた場合のバイト列の長さを求める */
                    659: int cmolen_cmo(cmo* c)
                    660: {
                    661:     int size = sizeof(int);
                    662:
                    663:     switch(c->tag) {
                    664:     case CMO_NULL:
1.2     ! ohara     665:     case CMO_ZERO:
        !           666:     case CMO_DMS_GENERIC:
1.1       ohara     667:         size += cmolen_cmo_null(c);
                    668:         break;
                    669:     case CMO_INT32:
                    670:         size += cmolen_cmo_int32((cmo_int32 *)c);
                    671:         break;
                    672:     case CMO_STRING:
                    673:         size += cmolen_cmo_string((cmo_string *)c);
                    674:         break;
1.2     ! ohara     675:     case CMO_MATHCAP:
        !           676:     case CMO_RING_BY_NAME:
        !           677:     case CMO_ERROR2:
        !           678:         size += cmolen_cmo_mathcap((cmo_mathcap *)c);
        !           679:         break;
1.1       ohara     680:     case CMO_LIST:
                    681:         size += cmolen_cmo_list((cmo_list *)c);
                    682:         break;
1.2     ! ohara     683:     case CMO_MONOMIAL32:
        !           684:         size += cmolen_cmo_monomial32((cmo_monomial32 *)c);
        !           685:         break;
1.1       ohara     686:     case CMO_ZZ:
                    687:         size += cmolen_cmo_zz((cmo_zz *)c);
                    688:         break;
                    689:     default:
                    690:     }
                    691:     return size;
                    692: }
                    693:
1.2     ! ohara     694: static char* dump_cmo_null(char* array, cmo_null* m)
        !           695: {
        !           696:     return array;
        !           697: }
        !           698:
1.1       ohara     699: static char* dump_cmo_int32(char* array, cmo_int32* m)
                    700: {
                    701:     return dump_integer(array, m->i);
                    702: }
                    703:
1.2     ! ohara     704: static char* dump_cmo_string(char* array, cmo_string* m)
        !           705: {
        !           706:     int len = strlen(m->s);
        !           707:     array = dump_integer(array, len);
        !           708:     memcpy(array, m->s, len);
        !           709:     return array + len;
        !           710: }
        !           711:
        !           712: static char* dump_cmo_mathcap(char* array, cmo_mathcap* c)
        !           713: {
        !           714:     return dump_cmo(array, c->ob);
        !           715: }
        !           716:
1.1       ohara     717: static char* dump_cmo_list(char* array, cmo_list* m)
                    718: {
                    719:     cell* cp = m->head;
                    720:     int len = length_cmo_list(m);
                    721:     array = dump_integer(array, len);
                    722:
                    723:     while(cp != NULL) {
                    724:         array = dump_cmo(array, cp->cmo);
                    725:         cp = cp->next;
                    726:     }
                    727:     return array;
                    728: }
                    729:
1.2     ! ohara     730: static char* dump_cmo_monomial32(char* array, cmo_monomial32* c)
1.1       ohara     731: {
1.2     ! ohara     732:        int i;
        !           733:        int length = c->length;
        !           734:        array = dump_integer(array, c->length);
        !           735:        for(i=0; i<length; i++) {
        !           736:                array = dump_integer(array, c->exps[i]);
        !           737:        }
        !           738:        array = dump_cmo(array, c->coef);
        !           739:        return array;
1.1       ohara     740: }
                    741:
                    742: static char* dump_cmo_zz(char* array, cmo_zz* c)
                    743: {
                    744:     return dump_mpz(array, c->mpz);
                    745: }
                    746:
                    747: /* タグを書き出してから、各関数を呼び出す */
                    748: char* dump_cmo(char* array, cmo* m)
                    749: {
                    750:     array = dump_integer(array, m->tag);
                    751:     switch(m->tag) {
                    752:     case CMO_NULL:
1.2     ! ohara     753:     case CMO_ZERO:
        !           754:     case CMO_DMS_GENERIC:
1.1       ohara     755:         return dump_cmo_null(array, m);
                    756:     case CMO_INT32:
                    757:         return dump_cmo_int32(array, (cmo_int32 *)m);
                    758:     case CMO_STRING:
                    759:         return dump_cmo_string(array, (cmo_string *)m);
1.2     ! ohara     760:     case CMO_MATHCAP:
        !           761:     case CMO_RING_BY_NAME:
        !           762:     case CMO_ERROR2:
        !           763:         return dump_cmo_mathcap(array, (cmo_mathcap *)m);
1.1       ohara     764:     case CMO_LIST:
                    765:         return dump_cmo_list(array, (cmo_list *)m);
1.2     ! ohara     766:     case CMO_MONOMIAL32:
        !           767:         return dump_cmo_monomial32(array, (cmo_monomial32 *)m);
1.1       ohara     768:     case CMO_ZZ:
                    769:         return dump_cmo_zz(array, (cmo_zz *)m);
                    770:     default:
                    771:         return NULL;
                    772:     }
                    773: }
                    774:
                    775: static char* dump_integer(char* array, int x)
                    776: {
                    777:     int nx = htonl(x);
                    778:     memcpy(array, &nx, sizeof(int));
                    779:     return array + sizeof(int);
                    780: }
                    781:
                    782: static char* dump_mpz(char* array, mpz_ptr mpz)
                    783: {
                    784:     int i;
                    785:     int len = abs(mpz->_mp_size);
                    786:     array = dump_integer(array, mpz->_mp_size);
                    787:     for(i=0; i<len; i++) {
                    788:         array = dump_integer(array, mpz->_mp_d[i]);
                    789:     }
                    790:     return array;
                    791: }
                    792:
                    793:
                    794: int send_ox(ox_file_t s, ox *m)
                    795: {
                    796:     int tag = m->tag;
                    797:     int code;
                    798:     if (tag == OX_DATA) {
                    799:         send_ox_cmo(s->stream, ((ox_data *)m)->cmo);
                    800:     }else if (tag == OX_COMMAND) {
                    801:         code = ((ox_command *)m)->command;
                    802:         if (code >= 1024) {
                    803:             /* control command */
                    804:             send_ox_command(s->control, code);
                    805:         }else {
                    806:             send_ox_command(s->stream, code);
                    807:         }
                    808:     }else {
                    809:         /* CMO?? */
                    810:         send_ox_cmo(s->stream, (cmo *)m);
                    811:     }
                    812: }
                    813:
                    814: int send_ox_cmo(int fd, cmo* m)
                    815: {
                    816:     send_ox_tag(fd, OX_DATA);
                    817:     send_cmo(fd, m);
                    818: }
                    819:
1.2     ! ohara     820: /* send_cmo_xxx 関数群 */
        !           821: static int send_cmo_null(int fd, cmo_null* c)
        !           822: {
        !           823:     return 0;
        !           824: }
1.1       ohara     825:
1.2     ! ohara     826: static int send_cmo_int32(int fd, cmo_int32* m)
1.1       ohara     827: {
1.2     ! ohara     828:     send_int32(fd, m->i);
1.1       ohara     829: }
                    830:
1.2     ! ohara     831: static int send_cmo_string(int fd, cmo_string* m)
1.1       ohara     832: {
1.2     ! ohara     833:     int len = strlen(m->s);
        !           834:     send_int32(fd, len);
        !           835:     if (len > 0) {
        !           836:         write(fd, m->s, len);
        !           837:     }
1.1       ohara     838:     return 0;
                    839: }
                    840:
1.2     ! ohara     841: static int send_cmo_mathcap(int fd, cmo_mathcap* c)
1.1       ohara     842: {
1.2     ! ohara     843:     send_cmo(fd, c->ob);
        !           844:     return 0;
1.1       ohara     845: }
                    846:
                    847: static int send_cmo_list(int fd, cmo_list* c)
                    848: {
                    849:     cell* cp = c->head;
                    850:     int len = length_cmo_list(c);
                    851:     send_int32(fd, len);
                    852:
                    853:     while(cp != NULL) {
                    854:         send_cmo(fd, cp->cmo);
                    855:         cp = cp->next;
                    856:     }
                    857:     return 0;
                    858: }
                    859:
1.2     ! ohara     860: static int send_cmo_zz(int fd, cmo_zz* c)
1.1       ohara     861: {
1.2     ! ohara     862:     send_mpz(fd, c->mpz);
1.1       ohara     863: }
                    864:
1.2     ! ohara     865: static int send_cmo_error2(int fd, cmo_error2* c)
1.1       ohara     866: {
1.2     ! ohara     867:     send_cmo(fd, c->ob);
1.1       ohara     868:     return 0;
                    869: }
                    870:
                    871: /* CMOを送る.  OX_tag は送信済*/
                    872: int send_cmo(int fd, cmo* c)
                    873: {
                    874:     int tag = c->tag;
                    875:
                    876:     send_int32(fd, tag);
                    877:     switch(tag) {
                    878:     case CMO_NULL:
                    879:         send_cmo_null(fd, c);  /* 空の関数 */
                    880:         break;
                    881:     case CMO_INT32:
                    882:         send_cmo_int32(fd, (cmo_int32 *)c);
                    883:         break;
                    884:     case CMO_STRING:
                    885:         send_cmo_string(fd, (cmo_string *)c);
                    886:         break;
                    887:     case CMO_MATHCAP:
                    888:         send_cmo_mathcap(fd, (cmo_mathcap *)c);
                    889:         break;
                    890:     case CMO_LIST:
                    891:         send_cmo_list(fd, (cmo_list *)c);
                    892:         break;
                    893:     case CMO_ZZ:
                    894:         send_cmo_zz(fd, (cmo_zz *)c);
                    895:         break;
                    896:     case CMO_ERROR2:
1.2     ! ohara     897:         send_cmo_error2(fd, (cmo_error2 *)c);
1.1       ohara     898:         break;
                    899:     default:
                    900:     }
                    901: }
                    902:
                    903: static int send_mpz(int fd, mpz_ptr mpz)
                    904: {
                    905:     int i;
                    906:     int len = abs(mpz->_mp_size);
                    907:     send_int32(fd, mpz->_mp_size);
                    908:     for(i=0; i<len; i++) {
                    909:         send_int32(fd, mpz->_mp_d[i]);
                    910:     }
                    911:     return 0;
                    912: }
                    913:
                    914: ox_data* new_ox_data(cmo* c)
                    915: {
                    916:     ox_data* m = malloc(sizeof(ox_data));
                    917:     m->tag = OX_DATA;
                    918:     m->cmo = c;
                    919:     return m;
                    920: }
                    921:
                    922: ox_command* new_ox_command(int sm_code)
                    923: {
                    924:     ox_command* m = malloc(sizeof(ox_command));
                    925:     m->tag = OX_COMMAND;
                    926:     m->command = sm_code;
                    927:     return m;
                    928: }
                    929:
                    930: char* dump_ox_data(char* array, ox_data* m)
                    931: {
                    932:     array = dump_integer(array, OX_DATA);
                    933:     array = dump_integer(array, -1);
                    934:     return dump_cmo(array, m->cmo);
                    935: }
                    936:
                    937: char* dump_ox_command(char* array, ox_command* m)
                    938: {
                    939:     array = dump_integer(array, OX_COMMAND);
                    940:     array = dump_integer(array, -1);
                    941:     return dump_integer(array, m->command);
                    942: }
                    943:
                    944: #define  MAX_TYPES  8
                    945: static int known_types[] = {
                    946:     -1,   /* gate keeper */
                    947:     CMO_NULL,
                    948:     CMO_INT32,
                    949:     CMO_STRING,
                    950:     CMO_MATHCAP,
                    951:     CMO_LIST,
                    952:     CMO_ZZ,
                    953:     CMO_ERROR2,
                    954: };
                    955:
1.2     ! ohara     956: #define ID_TEMP   "(CMO_MATHCAP, (CMO_LIST, (CMO_LIST, (CMO_INT32, %d), (CMO_STRING, \"%s\"), (CMO_STRING, \"%s\"), (CMO_STRING, \"%s\")), (CMO_LIST, (CMO_INT32, 1), (CMO_INT32, 2), (CMO_INT32, 4), (CMO_INT32, 5), (CMO_INT32, 17), (CMO_INT32, 20), (CMO_INT32, 2130706434))))\n"
1.1       ohara     957:
1.2     ! ohara     958: cmo* make_mathcap_object2(int ver, char* ver_s, char* sysname)
1.1       ohara     959: {
1.2     ! ohara     960:     cmo *cap;
        !           961:     char buff[8192];
1.1       ohara     962:
                    963:     setgetc(mygetc);
1.2     ! ohara     964:     sprintf(buff, ID_TEMP, ver, sysname, ver_s, getenv("HOSTTYPE"));
        !           965:     setmode_mygetc(buff, 8192);
        !           966:     cap = parse();
1.1       ohara     967:     resetgetc();
                    968:
1.2     ! ohara     969:     return cap;
1.1       ohara     970: }
                    971:
                    972: cmo* make_mathcap_object(int version, char* id_string)
                    973: {
                    974:     cmo_list *li_ver, *li_cmo, *li;
                    975:
                    976:     int i;
                    977:     li_ver = new_cmo_list();
                    978:     append_cmo_list(li_ver, (cmo *)new_cmo_int32(version));
                    979:     append_cmo_list(li_ver, (cmo *)new_cmo_string(id_string));
                    980:
                    981:     li_cmo = new_cmo_list();
                    982:     for(i=0; i<MAX_TYPES; i++) {
                    983:         if (known_types[i] != -1) {
                    984:             append_cmo_list(li_cmo, (cmo *)new_cmo_int32(known_types[i]));
                    985:         }
                    986:     }
                    987:
                    988:     li = new_cmo_list();
                    989:     append_cmo_list(li, (cmo *)li_ver);
                    990:     append_cmo_list(li, (cmo *)li_cmo);
                    991:
1.2     ! ohara     992:     return (cmo *)new_cmo_mathcap((cmo *)li);
1.1       ohara     993: }
                    994:
                    995: static int funcs(int cmo_type)
                    996: {
                    997:     int i;
                    998:     for(i=0; i<MAX_TYPES; i++) {
                    999:         if (known_types[i] == cmo_type) {
                   1000:             return i;
                   1001:         }
                   1002:     }
                   1003:     return 0;
                   1004: }
                   1005:
                   1006: void setCmotypeDisable(int type)
                   1007: {
                   1008:     int i = funcs(type);
                   1009:     known_types[i] = -1;
                   1010: }
                   1011: #if 0
                   1012: cmo* (*received_funcs[])(int fd) = {
                   1013:     NULL,  /* gate keeper */
                   1014:     receive_cmo_null,
                   1015:     receive_cmo_int32,
                   1016:     receive_cmo_string,
                   1017:     receive_cmo_mathcap,
                   1018:     receive_cmo_list,
                   1019:     receive_cmo_zz,
1.2     ! ohara    1020:     receive_cmo_error2
1.1       ohara    1021: };
                   1022:
                   1023: cmo* receive_cmo2(int fd)
                   1024: {
                   1025:     int tag;
                   1026:     cmo* (*foo)() = received_funcs[funcs(tag)];
                   1027:     if (foo != NULL) {
                   1028:         return foo(fd);
                   1029:     }
                   1030: }
                   1031: #endif
                   1032: /* ファイルディスクリプタ fd の通信路での integer の byte order を決定する */
                   1033: /* 実際には order (0,1,or 0xFF)をみてはいない */
                   1034: int decideByteOrder(int fd_read, int fd_write, int order)
                   1035: {
                   1036:     char zero = '\0';
                   1037:     char dest;
                   1038:     write(fd_write, &zero, 1);
                   1039:     read(fd_read, &dest, 1);
                   1040:     return 0;
                   1041: }
                   1042:
                   1043: /* Server 側ではこちらを用いる */
                   1044: int decideByteOrder2(int fd_read, int fd_write, int order)
                   1045: {
                   1046:     char zero = '\0';
                   1047:     char dest;
                   1048:     read(fd_read, &dest, 1);
                   1049:     write(fd_write, &zero, 1);
                   1050:     return 0;
                   1051: }
                   1052:
                   1053: /* cmo と string の変換関数群 */
                   1054:
                   1055: cmo_zz *new_cmo_zz_set_string(char *s)
                   1056: {
                   1057:     cmo_zz* c = new_cmo_zz_noinit();
                   1058:     mpz_init_set_str(c->mpz, s, 10);
                   1059:     return c;
                   1060: }
                   1061:
1.2     ! ohara    1062: char *convert_zz_to_cstring(cmo_zz *c)
1.1       ohara    1063: {
                   1064:     return mpz_get_str(NULL, 10, c->mpz);
                   1065: }
                   1066:
1.2     ! ohara    1067: char *convert_cmo_to_cstring(cmo *m)
1.1       ohara    1068: {
                   1069:     switch(m->tag) {
                   1070:     case CMO_ZZ:
1.2     ! ohara    1071:         return convert_zz_to_cstring((cmo_zz *)m);
1.1       ohara    1072:     case CMO_INT32:
1.2     ! ohara    1073:         return convert_int_to_cstring(((cmo_int32 *)m)->i);
1.1       ohara    1074:     case CMO_STRING:
                   1075:         return ((cmo_string *)m)->s;
                   1076:     case CMO_NULL:
1.2     ! ohara    1077:         return convert_null_to_cstring();
1.1       ohara    1078:     default:
                   1079:         fprintf(stderr, "sorry, not implemented CMO\n");
                   1080:         /* まだ実装していません. */
                   1081:         return NULL;
                   1082:     }
                   1083: }
                   1084:
1.2     ! ohara    1085: char *convert_null_to_cstring()
1.1       ohara    1086: {
                   1087:     static char* null_string = "";
                   1088:     return null_string;
                   1089: }
                   1090:
1.2     ! ohara    1091: char *convert_int_to_cstring(int integer)
1.1       ohara    1092: {
                   1093:     char buff[1024];
                   1094:     char *s;
                   1095:
                   1096:     sprintf(buff, "%d", integer);
                   1097:     s = malloc(strlen(buff)+1);
                   1098:     strcpy(s, buff);
                   1099:
                   1100:     return s;
                   1101: }

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