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ext/sdbm/init.c

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00001 /************************************************
00002 
00003   sdbminit.c -
00004 
00005   $Author: nobu $
00006   created at: Fri May  7 08:34:24 JST 1999
00007 
00008   Copyright (C) 1995-2001 Yukihiro Matsumoto
00009 
00010 ************************************************/
00011 
00012 #include "ruby.h"
00013 
00014 #include "sdbm.h"
00015 #include <fcntl.h>
00016 #include <errno.h>
00017 
00018 static VALUE rb_cDBM, rb_eDBMError;
00019 
00020 struct dbmdata {
00021     int  di_size;
00022     DBM *di_dbm;
00023 };
00024 
00025 static void
00026 closed_sdbm()
00027 {
00028     rb_raise(rb_eDBMError, "closed SDBM file");
00029 }
00030 
00031 #define GetDBM(obj, dbmp) {\
00032     Data_Get_Struct(obj, struct dbmdata, dbmp);\
00033     if (dbmp == 0) closed_sdbm();\
00034     if (dbmp->di_dbm == 0) closed_sdbm();\
00035 }
00036 
00037 #define GetDBM2(obj, data, dbm) {\
00038     GetDBM(obj, data);\
00039     (dbm) = dbmp->di_dbm;\
00040 }
00041 
00042 static void
00043 free_sdbm(struct dbmdata *dbmp)
00044 {
00045 
00046     if (dbmp->di_dbm) sdbm_close(dbmp->di_dbm);
00047     ruby_xfree(dbmp);
00048 }
00049 
00050 static VALUE
00051 fsdbm_close(VALUE obj)
00052 {
00053     struct dbmdata *dbmp;
00054 
00055     GetDBM(obj, dbmp);
00056     sdbm_close(dbmp->di_dbm);
00057     dbmp->di_dbm = 0;
00058 
00059     return Qnil;
00060 }
00061 
00062 static VALUE
00063 fsdbm_closed(VALUE obj)
00064 {
00065     struct dbmdata *dbmp;
00066 
00067     Data_Get_Struct(obj, struct dbmdata, dbmp);
00068     if (dbmp == 0)
00069         return Qtrue;
00070     if (dbmp->di_dbm == 0)
00071         return Qtrue;
00072 
00073     return Qfalse;
00074 }
00075 
00076 static VALUE
00077 fsdbm_alloc(VALUE klass)
00078 {
00079     return Data_Wrap_Struct(klass, 0, free_sdbm, 0);
00080 }
00081 
00082 static VALUE
00083 fsdbm_initialize(int argc, VALUE *argv, VALUE obj)
00084 {
00085     volatile VALUE file;
00086     VALUE vmode;
00087     DBM *dbm;
00088     struct dbmdata *dbmp;
00089     int mode;
00090 
00091     if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) {
00092         mode = 0666;            /* default value */
00093     }
00094     else if (NIL_P(vmode)) {
00095         mode = -1;              /* return nil if DB not exist */
00096     }
00097     else {
00098         mode = NUM2INT(vmode);
00099     }
00100     FilePathValue(file);
00101 
00102     dbm = 0;
00103     if (mode >= 0)
00104         dbm = sdbm_open(RSTRING_PTR(file), O_RDWR|O_CREAT, mode);
00105     if (!dbm)
00106         dbm = sdbm_open(RSTRING_PTR(file), O_RDWR, 0);
00107     if (!dbm)
00108         dbm = sdbm_open(RSTRING_PTR(file), O_RDONLY, 0);
00109 
00110     if (!dbm) {
00111         if (mode == -1) return Qnil;
00112         rb_sys_fail(RSTRING_PTR(file));
00113     }
00114 
00115     dbmp = ALLOC(struct dbmdata);
00116     DATA_PTR(obj) = dbmp;
00117     dbmp->di_dbm = dbm;
00118     dbmp->di_size = -1;
00119 
00120     return obj;
00121 }
00122 
00123 static VALUE
00124 fsdbm_s_open(int argc, VALUE *argv, VALUE klass)
00125 {
00126     VALUE obj = Data_Wrap_Struct(klass, 0, free_sdbm, 0);
00127 
00128     if (NIL_P(fsdbm_initialize(argc, argv, obj))) {
00129         return Qnil;
00130     }
00131 
00132     if (rb_block_given_p()) {
00133         return rb_ensure(rb_yield, obj, fsdbm_close, obj);
00134     }
00135 
00136     return obj;
00137 }
00138 
00139 static VALUE
00140 fsdbm_fetch(VALUE obj, VALUE keystr, VALUE ifnone)
00141 {
00142     datum key, value;
00143     struct dbmdata *dbmp;
00144     DBM *dbm;
00145 
00146     ExportStringValue(keystr);
00147     key.dptr = RSTRING_PTR(keystr);
00148     key.dsize = RSTRING_LEN(keystr);
00149 
00150     GetDBM2(obj, dbmp, dbm);
00151     value = sdbm_fetch(dbm, key);
00152     if (value.dptr == 0) {
00153         if (ifnone == Qnil && rb_block_given_p())
00154             return rb_yield(rb_external_str_new(key.dptr, key.dsize));
00155         return ifnone;
00156     }
00157     return rb_external_str_new(value.dptr, value.dsize);
00158 }
00159 
00160 static VALUE
00161 fsdbm_aref(VALUE obj, VALUE keystr)
00162 {
00163     return fsdbm_fetch(obj, keystr, Qnil);
00164 }
00165 
00166 static VALUE
00167 fsdbm_fetch_m(int argc, VALUE *argv, VALUE obj)
00168 {
00169     VALUE keystr, valstr, ifnone;
00170 
00171     rb_scan_args(argc, argv, "11", &keystr, &ifnone);
00172     valstr = fsdbm_fetch(obj, keystr, ifnone);
00173     if (argc == 1 && !rb_block_given_p() && NIL_P(valstr))
00174         rb_raise(rb_eIndexError, "key not found");
00175 
00176     return valstr;
00177 }
00178 
00179 static VALUE
00180 fsdbm_key(VALUE obj, VALUE valstr)
00181 {
00182     datum key, val;
00183     struct dbmdata *dbmp;
00184     DBM *dbm;
00185 
00186     ExportStringValue(valstr);
00187     val.dptr = RSTRING_PTR(valstr);
00188     val.dsize = RSTRING_LEN(valstr);
00189 
00190     GetDBM2(obj, dbmp, dbm);
00191     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00192         val = sdbm_fetch(dbm, key);
00193         if (val.dsize == RSTRING_LEN(valstr) &&
00194             memcmp(val.dptr, RSTRING_PTR(valstr), val.dsize) == 0)
00195             return rb_external_str_new(key.dptr, key.dsize);
00196     }
00197     return Qnil;
00198 }
00199 
00200 static VALUE
00201 fsdbm_index(VALUE hash, VALUE value)
00202 {
00203     rb_warn("SDBM#index is deprecated; use SDBM#key");
00204     return fsdbm_key(hash, value);
00205 }
00206 
00207 static VALUE
00208 fsdbm_select(VALUE obj)
00209 {
00210     VALUE new = rb_ary_new();
00211     datum key, val;
00212     DBM *dbm;
00213     struct dbmdata *dbmp;
00214 
00215     GetDBM2(obj, dbmp, dbm);
00216     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00217         VALUE assoc, v;
00218         val = sdbm_fetch(dbm, key);
00219         assoc = rb_assoc_new(rb_external_str_new(key.dptr, key.dsize),
00220                              rb_external_str_new(val.dptr, val.dsize));
00221         v = rb_yield(assoc);
00222         if (RTEST(v)) {
00223             rb_ary_push(new, assoc);
00224         }
00225         GetDBM2(obj, dbmp, dbm);
00226     }
00227 
00228     return new;
00229 }
00230 
00231 static VALUE
00232 fsdbm_values_at(int argc, VALUE *argv, VALUE obj)
00233 {
00234     VALUE new = rb_ary_new2(argc);
00235     int i;
00236 
00237     for (i=0; i<argc; i++) {
00238         rb_ary_push(new, fsdbm_fetch(obj, argv[i], Qnil));
00239     }
00240 
00241     return new;
00242 }
00243 
00244 static void
00245 fdbm_modify(VALUE obj)
00246 {
00247     rb_secure(4);
00248     if (OBJ_FROZEN(obj)) rb_error_frozen("SDBM");
00249 }
00250 
00251 static VALUE
00252 fsdbm_delete(VALUE obj, VALUE keystr)
00253 {
00254     datum key, value;
00255     struct dbmdata *dbmp;
00256     DBM *dbm;
00257     VALUE valstr;
00258 
00259     fdbm_modify(obj);
00260     ExportStringValue(keystr);
00261     key.dptr = RSTRING_PTR(keystr);
00262     key.dsize = RSTRING_LEN(keystr);
00263 
00264     GetDBM2(obj, dbmp, dbm);
00265     dbmp->di_size = -1;
00266 
00267     value = sdbm_fetch(dbm, key);
00268     if (value.dptr == 0) {
00269         if (rb_block_given_p()) return rb_yield(keystr);
00270         return Qnil;
00271     }
00272 
00273     /* need to save value before sdbm_delete() */
00274     valstr = rb_external_str_new(value.dptr, value.dsize);
00275 
00276     if (sdbm_delete(dbm, key)) {
00277         dbmp->di_size = -1;
00278         rb_raise(rb_eDBMError, "dbm_delete failed");
00279     }
00280     else if (dbmp->di_size >= 0) {
00281         dbmp->di_size--;
00282     }
00283     return valstr;
00284 }
00285 
00286 static VALUE
00287 fsdbm_shift(VALUE obj)
00288 {
00289     datum key, val;
00290     struct dbmdata *dbmp;
00291     DBM *dbm;
00292     VALUE keystr, valstr;
00293 
00294     fdbm_modify(obj);
00295     GetDBM2(obj, dbmp, dbm);
00296     key = sdbm_firstkey(dbm);
00297     if (!key.dptr) return Qnil;
00298     val = sdbm_fetch(dbm, key);
00299     keystr = rb_external_str_new(key.dptr, key.dsize);
00300     valstr = rb_external_str_new(val.dptr, val.dsize);
00301     sdbm_delete(dbm, key);
00302     if (dbmp->di_size >= 0) {
00303         dbmp->di_size--;
00304     }
00305 
00306     return rb_assoc_new(keystr, valstr);
00307 }
00308 
00309 static VALUE
00310 fsdbm_delete_if(VALUE obj)
00311 {
00312     datum key, val;
00313     struct dbmdata *dbmp;
00314     DBM *dbm;
00315     VALUE keystr, valstr;
00316     VALUE ret, ary = rb_ary_new();
00317     int i, status = 0, n;
00318 
00319     fdbm_modify(obj);
00320     GetDBM2(obj, dbmp, dbm);
00321     n = dbmp->di_size;
00322     dbmp->di_size = -1;
00323     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00324         val = sdbm_fetch(dbm, key);
00325         keystr = rb_external_str_new(key.dptr, key.dsize);
00326         valstr = rb_external_str_new(val.dptr, val.dsize);
00327         ret = rb_protect(rb_yield, rb_assoc_new(rb_str_dup(keystr), valstr), &status);
00328         if (status != 0) break;
00329         if (RTEST(ret)) rb_ary_push(ary, keystr);
00330         GetDBM2(obj, dbmp, dbm);
00331     }
00332 
00333     for (i = 0; i < RARRAY_LEN(ary); i++) {
00334         keystr = RARRAY_PTR(ary)[i];
00335         ExportStringValue(keystr);
00336         key.dptr = RSTRING_PTR(keystr);
00337         key.dsize = RSTRING_LEN(keystr);
00338         if (sdbm_delete(dbm, key)) {
00339             rb_raise(rb_eDBMError, "sdbm_delete failed");
00340         }
00341     }
00342     if (status) rb_jump_tag(status);
00343     if (n > 0) dbmp->di_size = n - RARRAY_LEN(ary);
00344 
00345     return obj;
00346 }
00347 
00348 static VALUE
00349 fsdbm_clear(VALUE obj)
00350 {
00351     datum key;
00352     struct dbmdata *dbmp;
00353     DBM *dbm;
00354 
00355     fdbm_modify(obj);
00356     GetDBM2(obj, dbmp, dbm);
00357     dbmp->di_size = -1;
00358     while (key = sdbm_firstkey(dbm), key.dptr) {
00359         if (sdbm_delete(dbm, key)) {
00360             rb_raise(rb_eDBMError, "sdbm_delete failed");
00361         }
00362     }
00363     dbmp->di_size = 0;
00364 
00365     return obj;
00366 }
00367 
00368 static VALUE
00369 fsdbm_invert(VALUE obj)
00370 {
00371     datum key, val;
00372     struct dbmdata *dbmp;
00373     DBM *dbm;
00374     VALUE keystr, valstr;
00375     VALUE hash = rb_hash_new();
00376 
00377     GetDBM2(obj, dbmp, dbm);
00378     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00379         val = sdbm_fetch(dbm, key);
00380         keystr = rb_external_str_new(key.dptr, key.dsize);
00381         valstr = rb_external_str_new(val.dptr, val.dsize);
00382         rb_hash_aset(hash, valstr, keystr);
00383     }
00384     return hash;
00385 }
00386 
00387 static VALUE
00388 fsdbm_store(VALUE obj, VALUE keystr, VALUE valstr)
00389 {
00390     datum key, val;
00391     struct dbmdata *dbmp;
00392     DBM *dbm;
00393 
00394     if (valstr == Qnil) {
00395         fsdbm_delete(obj, keystr);
00396         return Qnil;
00397     }
00398 
00399     fdbm_modify(obj);
00400     ExportStringValue(keystr);
00401     ExportStringValue(valstr);
00402 
00403     key.dptr = RSTRING_PTR(keystr);
00404     key.dsize = RSTRING_LEN(keystr);
00405 
00406     val.dptr = RSTRING_PTR(valstr);
00407     val.dsize = RSTRING_LEN(valstr);
00408 
00409     GetDBM2(obj, dbmp, dbm);
00410     dbmp->di_size = -1;
00411     if (sdbm_store(dbm, key, val, DBM_REPLACE)) {
00412 #ifdef HAVE_DBM_CLAERERR
00413         sdbm_clearerr(dbm);
00414 #endif
00415         if (errno == EPERM) rb_sys_fail(0);
00416         rb_raise(rb_eDBMError, "sdbm_store failed");
00417     }
00418 
00419     return valstr;
00420 }
00421 
00422 static VALUE
00423 update_i(VALUE pair, VALUE dbm)
00424 {
00425     Check_Type(pair, T_ARRAY);
00426     if (RARRAY_LEN(pair) < 2) {
00427         rb_raise(rb_eArgError, "pair must be [key, value]");
00428     }
00429     fsdbm_store(dbm, RARRAY_PTR(pair)[0], RARRAY_PTR(pair)[1]);
00430     return Qnil;
00431 }
00432 
00433 static VALUE
00434 fsdbm_update(VALUE obj, VALUE other)
00435 {
00436     rb_block_call(other, rb_intern("each_pair"), 0, 0, update_i, obj);
00437     return obj;
00438 }
00439 
00440 static VALUE
00441 fsdbm_replace(VALUE obj, VALUE other)
00442 {
00443     fsdbm_clear(obj);
00444     rb_block_call(other, rb_intern("each_pair"), 0, 0, update_i, obj);
00445     return obj;
00446 }
00447 
00448 static VALUE
00449 fsdbm_length(VALUE obj)
00450 {
00451     datum key;
00452     struct dbmdata *dbmp;
00453     DBM *dbm;
00454     int i = 0;
00455 
00456     GetDBM2(obj, dbmp, dbm);
00457     if (dbmp->di_size > 0) return INT2FIX(dbmp->di_size);
00458 
00459     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00460         i++;
00461     }
00462     dbmp->di_size = i;
00463 
00464     return INT2FIX(i);
00465 }
00466 
00467 static VALUE
00468 fsdbm_empty_p(VALUE obj)
00469 {
00470     datum key;
00471     struct dbmdata *dbmp;
00472     DBM *dbm;
00473     int i = 0;
00474 
00475     GetDBM(obj, dbmp);
00476     if (dbmp->di_size < 0) {
00477         dbm = dbmp->di_dbm;
00478 
00479         for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00480             i++;
00481         }
00482     }
00483     else {
00484         i = dbmp->di_size;
00485     }
00486     if (i == 0) return Qtrue;
00487     return Qfalse;
00488 }
00489 
00490 static VALUE
00491 fsdbm_each_value(VALUE obj)
00492 {
00493     datum key, val;
00494     struct dbmdata *dbmp;
00495     DBM *dbm;
00496 
00497     RETURN_ENUMERATOR(obj, 0, 0);
00498 
00499     GetDBM2(obj, dbmp, dbm);
00500     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00501         val = sdbm_fetch(dbm, key);
00502         rb_yield(rb_external_str_new(val.dptr, val.dsize));
00503         GetDBM2(obj, dbmp, dbm);
00504     }
00505     return obj;
00506 }
00507 
00508 static VALUE
00509 fsdbm_each_key(VALUE obj)
00510 {
00511     datum key;
00512     struct dbmdata *dbmp;
00513     DBM *dbm;
00514 
00515     RETURN_ENUMERATOR(obj, 0, 0);
00516 
00517     GetDBM2(obj, dbmp, dbm);
00518     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00519         rb_yield(rb_external_str_new(key.dptr, key.dsize));
00520         GetDBM2(obj, dbmp, dbm);
00521     }
00522     return obj;
00523 }
00524 
00525 static VALUE
00526 fsdbm_each_pair(VALUE obj)
00527 {
00528     datum key, val;
00529     DBM *dbm;
00530     struct dbmdata *dbmp;
00531     VALUE keystr, valstr;
00532 
00533     RETURN_ENUMERATOR(obj, 0, 0);
00534 
00535     GetDBM2(obj, dbmp, dbm);
00536     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00537         val = sdbm_fetch(dbm, key);
00538         keystr = rb_external_str_new(key.dptr, key.dsize);
00539         valstr = rb_external_str_new(val.dptr, val.dsize);
00540         rb_yield(rb_assoc_new(keystr, valstr));
00541         GetDBM2(obj, dbmp, dbm);
00542     }
00543 
00544     return obj;
00545 }
00546 
00547 static VALUE
00548 fsdbm_keys(VALUE obj)
00549 {
00550     datum key;
00551     struct dbmdata *dbmp;
00552     DBM *dbm;
00553     VALUE ary;
00554 
00555     GetDBM2(obj, dbmp, dbm);
00556     ary = rb_ary_new();
00557     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00558         rb_ary_push(ary, rb_external_str_new(key.dptr, key.dsize));
00559     }
00560 
00561     return ary;
00562 }
00563 
00564 static VALUE
00565 fsdbm_values(VALUE obj)
00566 {
00567     datum key, val;
00568     struct dbmdata *dbmp;
00569     DBM *dbm;
00570     VALUE ary;
00571 
00572     GetDBM2(obj, dbmp, dbm);
00573     ary = rb_ary_new();
00574     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00575         val = sdbm_fetch(dbm, key);
00576         rb_ary_push(ary, rb_external_str_new(val.dptr, val.dsize));
00577     }
00578 
00579     return ary;
00580 }
00581 
00582 static VALUE
00583 fsdbm_has_key(VALUE obj, VALUE keystr)
00584 {
00585     datum key, val;
00586     struct dbmdata *dbmp;
00587     DBM *dbm;
00588 
00589     ExportStringValue(keystr);
00590     key.dptr = RSTRING_PTR(keystr);
00591     key.dsize = RSTRING_LEN(keystr);
00592 
00593     GetDBM2(obj, dbmp, dbm);
00594     val = sdbm_fetch(dbm, key);
00595     if (val.dptr) return Qtrue;
00596     return Qfalse;
00597 }
00598 
00599 static VALUE
00600 fsdbm_has_value(VALUE obj, VALUE valstr)
00601 {
00602     datum key, val;
00603     struct dbmdata *dbmp;
00604     DBM *dbm;
00605 
00606     ExportStringValue(valstr);
00607     val.dptr = RSTRING_PTR(valstr);
00608     val.dsize = RSTRING_LEN(valstr);
00609 
00610     GetDBM2(obj, dbmp, dbm);
00611     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00612         val = sdbm_fetch(dbm, key);
00613         if (val.dsize == RSTRING_LEN(valstr) &&
00614             memcmp(val.dptr, RSTRING_PTR(valstr), val.dsize) == 0)
00615             return Qtrue;
00616     }
00617     return Qfalse;
00618 }
00619 
00620 static VALUE
00621 fsdbm_to_a(VALUE obj)
00622 {
00623     datum key, val;
00624     struct dbmdata *dbmp;
00625     DBM *dbm;
00626     VALUE ary;
00627 
00628     GetDBM2(obj, dbmp, dbm);
00629     ary = rb_ary_new();
00630     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00631         val = sdbm_fetch(dbm, key);
00632         rb_ary_push(ary, rb_assoc_new(rb_external_str_new(key.dptr, key.dsize),
00633                                       rb_external_str_new(val.dptr, val.dsize)));
00634     }
00635 
00636     return ary;
00637 }
00638 
00639 static VALUE
00640 fsdbm_to_hash(VALUE obj)
00641 {
00642     datum key, val;
00643     struct dbmdata *dbmp;
00644     DBM *dbm;
00645     VALUE hash;
00646 
00647     GetDBM2(obj, dbmp, dbm);
00648     hash = rb_hash_new();
00649     for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
00650         val = sdbm_fetch(dbm, key);
00651         rb_hash_aset(hash, rb_external_str_new(key.dptr, key.dsize),
00652                            rb_external_str_new(val.dptr, val.dsize));
00653     }
00654 
00655     return hash;
00656 }
00657 
00658 static VALUE
00659 fsdbm_reject(VALUE obj)
00660 {
00661     return rb_hash_delete_if(fsdbm_to_hash(obj));
00662 }
00663 
00664 void
00665 Init_sdbm()
00666 {
00667     rb_cDBM = rb_define_class("SDBM", rb_cObject);
00668     rb_eDBMError = rb_define_class("SDBMError", rb_eStandardError);
00669     rb_include_module(rb_cDBM, rb_mEnumerable);
00670 
00671     rb_define_alloc_func(rb_cDBM, fsdbm_alloc);
00672     rb_define_singleton_method(rb_cDBM, "open", fsdbm_s_open, -1);
00673 
00674     rb_define_method(rb_cDBM, "initialize", fsdbm_initialize, -1);
00675     rb_define_method(rb_cDBM, "close", fsdbm_close, 0);
00676     rb_define_method(rb_cDBM, "closed?", fsdbm_closed, 0);
00677     rb_define_method(rb_cDBM, "[]", fsdbm_aref, 1);
00678     rb_define_method(rb_cDBM, "fetch", fsdbm_fetch_m, -1);
00679     rb_define_method(rb_cDBM, "[]=", fsdbm_store, 2);
00680     rb_define_method(rb_cDBM, "store", fsdbm_store, 2);
00681     rb_define_method(rb_cDBM, "index",  fsdbm_index, 1);
00682     rb_define_method(rb_cDBM, "key",  fsdbm_key, 1);
00683     rb_define_method(rb_cDBM, "select",  fsdbm_select, 0);
00684     rb_define_method(rb_cDBM, "values_at",  fsdbm_values_at, -1);
00685     rb_define_method(rb_cDBM, "length", fsdbm_length, 0);
00686     rb_define_method(rb_cDBM, "size", fsdbm_length, 0);
00687     rb_define_method(rb_cDBM, "empty?", fsdbm_empty_p, 0);
00688     rb_define_method(rb_cDBM, "each", fsdbm_each_pair, 0);
00689     rb_define_method(rb_cDBM, "each_value", fsdbm_each_value, 0);
00690     rb_define_method(rb_cDBM, "each_key", fsdbm_each_key, 0);
00691     rb_define_method(rb_cDBM, "each_pair", fsdbm_each_pair, 0);
00692     rb_define_method(rb_cDBM, "keys", fsdbm_keys, 0);
00693     rb_define_method(rb_cDBM, "values", fsdbm_values, 0);
00694     rb_define_method(rb_cDBM, "shift", fsdbm_shift, 0);
00695     rb_define_method(rb_cDBM, "delete", fsdbm_delete, 1);
00696     rb_define_method(rb_cDBM, "delete_if", fsdbm_delete_if, 0);
00697     rb_define_method(rb_cDBM, "reject!", fsdbm_delete_if, 0);
00698     rb_define_method(rb_cDBM, "reject", fsdbm_reject, 0);
00699     rb_define_method(rb_cDBM, "clear", fsdbm_clear, 0);
00700     rb_define_method(rb_cDBM,"invert", fsdbm_invert, 0);
00701     rb_define_method(rb_cDBM,"update", fsdbm_update, 1);
00702     rb_define_method(rb_cDBM,"replace", fsdbm_replace, 1);
00703 
00704     rb_define_method(rb_cDBM, "include?", fsdbm_has_key, 1);
00705     rb_define_method(rb_cDBM, "has_key?", fsdbm_has_key, 1);
00706     rb_define_method(rb_cDBM, "member?", fsdbm_has_key, 1);
00707     rb_define_method(rb_cDBM, "has_value?", fsdbm_has_value, 1);
00708     rb_define_method(rb_cDBM, "key?", fsdbm_has_key, 1);
00709     rb_define_method(rb_cDBM, "value?", fsdbm_has_value, 1);
00710 
00711     rb_define_method(rb_cDBM, "to_a", fsdbm_to_a, 0);
00712     rb_define_method(rb_cDBM, "to_hash", fsdbm_to_hash, 0);
00713 }
00714 

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