From 343ad9eff5b8e4c776c1bf193fc125f9ba1cd612 Mon Sep 17 00:00:00 2001 From: Hiroshi SHIBATA Date: Thu, 18 Jun 2020 21:06:20 +0900 Subject: Removed sdbm and it tests --- ext/sdbm/init.c | 1067 ------------------------------------------------------- 1 file changed, 1067 deletions(-) delete mode 100644 ext/sdbm/init.c (limited to 'ext/sdbm/init.c') diff --git a/ext/sdbm/init.c b/ext/sdbm/init.c deleted file mode 100644 index 42292b99cd..0000000000 --- a/ext/sdbm/init.c +++ /dev/null @@ -1,1067 +0,0 @@ -/************************************************ - - sdbminit.c - - - $Author$ - created at: Fri May 7 08:34:24 JST 1999 - - Copyright (C) 1995-2001 Yukihiro Matsumoto - -************************************************/ - -#include "ruby.h" - -#include "sdbm.h" -#include -#include - -/* - * Document-class: SDBM - * - * SDBM provides a simple file-based key-value store, which can only store - * String keys and values. - * - * Note that Ruby comes with the source code for SDBM, while the DBM and GDBM - * standard libraries rely on external libraries and headers. - * - * === Examples - * - * Insert values: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db['apple'] = 'fruit' - * db['pear'] = 'fruit' - * db['carrot'] = 'vegetable' - * db['tomato'] = 'vegetable' - * end - * - * Bulk update: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db.update('peach' => 'fruit', 'tomato' => 'fruit') - * end - * - * Retrieve values: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db.each do |key, value| - * puts "Key: #{key}, Value: #{value}" - * end - * end - * - * Outputs: - * - * Key: apple, Value: fruit - * Key: pear, Value: fruit - * Key: carrot, Value: vegetable - * Key: peach, Value: fruit - * Key: tomato, Value: fruit - */ - -static VALUE rb_cDBM, rb_eDBMError; - -struct dbmdata { - int di_size; - DBM *di_dbm; -}; - -NORETURN(static void closed_sdbm(void)); - -static void -closed_sdbm(void) -{ - rb_raise(rb_eDBMError, "closed SDBM file"); -} - -#define GetDBM(obj, dbmp) do {\ - TypedData_Get_Struct((obj), struct dbmdata, &sdbm_type, (dbmp));\ - if ((dbmp)->di_dbm == 0) closed_sdbm();\ -} while (0) - -#define GetDBM2(obj, dbmp, dbm) do {\ - GetDBM((obj), (dbmp));\ - (dbm) = (dbmp)->di_dbm;\ -} while (0) - -static void -free_sdbm(void *ptr) -{ - struct dbmdata *dbmp = ptr; - - if (dbmp->di_dbm) sdbm_close(dbmp->di_dbm); - ruby_xfree(dbmp); -} - -static size_t -memsize_dbm(const void *ptr) -{ - const struct dbmdata *dbmp = ptr; - size_t size = sizeof(*dbmp); - if (dbmp->di_dbm) - size += sizeof(DBM); - return size; -} - -static const rb_data_type_t sdbm_type = { - "sdbm", - {0, free_sdbm, memsize_dbm,}, - 0, 0, - RUBY_TYPED_FREE_IMMEDIATELY, -}; - -/* - * call-seq: - * sdbm.close -> nil - * - * Closes the database file. - * - * Raises SDBMError if the database is already closed. - */ -static VALUE -fsdbm_close(VALUE obj) -{ - struct dbmdata *dbmp; - - GetDBM(obj, dbmp); - sdbm_close(dbmp->di_dbm); - dbmp->di_dbm = 0; - - return Qnil; -} - -/* - * call-seq: - * sdbm.closed? -> true or false - * - * Returns +true+ if the database is closed. - */ -static VALUE -fsdbm_closed(VALUE obj) -{ - struct dbmdata *dbmp; - - TypedData_Get_Struct(obj, struct dbmdata, &sdbm_type, dbmp); - if (dbmp->di_dbm == 0) - return Qtrue; - - return Qfalse; -} - -static VALUE -fsdbm_alloc(VALUE klass) -{ - struct dbmdata *dbmp; - - return TypedData_Make_Struct(klass, struct dbmdata, &sdbm_type, dbmp); -} -/* - * call-seq: - * SDBM.new(filename, mode = 0666) - * - * Creates a new database handle by opening the given +filename+. SDBM actually - * uses two physical files, with extensions '.dir' and '.pag'. These extensions - * will automatically be appended to the +filename+. - * - * If the file does not exist, a new file will be created using the given - * +mode+, unless +mode+ is explicitly set to nil. In the latter case, no - * database will be created. - * - * If the file exists, it will be opened in read/write mode. If this fails, it - * will be opened in read-only mode. - */ -static VALUE -fsdbm_initialize(int argc, VALUE *argv, VALUE obj) -{ - VALUE file, vmode; - DBM *dbm; - struct dbmdata *dbmp; - int mode; - - TypedData_Get_Struct(obj, struct dbmdata, &sdbm_type, dbmp); - if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) { - mode = 0666; /* default value */ - } - else if (NIL_P(vmode)) { - mode = -1; /* return nil if DB not exist */ - } - else { - mode = NUM2INT(vmode); - } - FilePathValue(file); - - dbm = 0; - if (mode >= 0) - dbm = sdbm_open(RSTRING_PTR(file), O_RDWR|O_CREAT, mode); - if (!dbm) - dbm = sdbm_open(RSTRING_PTR(file), O_RDWR, 0); - if (!dbm) - dbm = sdbm_open(RSTRING_PTR(file), O_RDONLY, 0); - - if (!dbm) { - if (mode == -1) return Qnil; - rb_sys_fail_str(file); - } - - if (dbmp->di_dbm) - sdbm_close(dbmp->di_dbm); - dbmp->di_dbm = dbm; - dbmp->di_size = -1; - - return obj; -} - -/* - * call-seq: - * SDBM.open(filename, mode = 0666) - * SDBM.open(filename, mode = 0666) { |sdbm| ... } - * - * If called without a block, this is the same as SDBM.new. - * - * If a block is given, the new database will be passed to the block and - * will be safely closed after the block has executed. - * - * Example: - * - * require 'sdbm' - * - * SDBM.open('my_database') do |db| - * db['hello'] = 'world' - * end - */ -static VALUE -fsdbm_s_open(int argc, VALUE *argv, VALUE klass) -{ - VALUE obj = fsdbm_alloc(klass); - - if (NIL_P(fsdbm_initialize(argc, argv, obj))) { - return Qnil; - } - - if (rb_block_given_p()) { - return rb_ensure(rb_yield, obj, fsdbm_close, obj); - } - - return obj; -} - -static VALUE -fsdbm_fetch(VALUE obj, VALUE keystr, VALUE ifnone) -{ - datum key, value; - struct dbmdata *dbmp; - DBM *dbm; - - ExportStringValue(keystr); - key.dptr = RSTRING_PTR(keystr); - key.dsize = RSTRING_LENINT(keystr); - - GetDBM2(obj, dbmp, dbm); - value = sdbm_fetch(dbm, key); - if (value.dptr == 0) { - if (ifnone == Qnil && rb_block_given_p()) - return rb_yield(rb_external_str_new(key.dptr, key.dsize)); - return ifnone; - } - return rb_external_str_new(value.dptr, value.dsize); -} - -/* - * call-seq: - * sdbm[key] -> value or nil - * - * Returns the +value+ in the database associated with the given +key+ string. - * - * If no value is found, returns +nil+. - */ -static VALUE -fsdbm_aref(VALUE obj, VALUE keystr) -{ - return fsdbm_fetch(obj, keystr, Qnil); -} - -/* - * call-seq: - * sdbm.fetch(key) -> value or nil - * sdbm.fetch(key) { |key| ... } - * - * Returns the +value+ in the database associated with the given +key+ string. - * - * If a block is provided, the block will be called when there is no - * +value+ associated with the given +key+. The +key+ will be passed in as an - * argument to the block. - * - * If no block is provided and no value is associated with the given +key+, - * then an IndexError will be raised. - */ -static VALUE -fsdbm_fetch_m(int argc, VALUE *argv, VALUE obj) -{ - VALUE keystr, valstr, ifnone; - - rb_scan_args(argc, argv, "11", &keystr, &ifnone); - valstr = fsdbm_fetch(obj, keystr, ifnone); - if (argc == 1 && !rb_block_given_p() && NIL_P(valstr)) - rb_raise(rb_eIndexError, "key not found"); - - return valstr; -} - -/* - * call-seq: - * sdbm.key(value) -> key - * - * Returns the +key+ associated with the given +value+. If more than one - * +key+ corresponds to the given +value+, then the first key to be found - * will be returned. If no keys are found, +nil+ will be returned. - */ -static VALUE -fsdbm_key(VALUE obj, VALUE valstr) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - - ExportStringValue(valstr); - val.dptr = RSTRING_PTR(valstr); - val.dsize = RSTRING_LENINT(valstr); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - if (val.dsize == RSTRING_LEN(valstr) && - memcmp(val.dptr, RSTRING_PTR(valstr), val.dsize) == 0) - return rb_external_str_new(key.dptr, key.dsize); - } - return Qnil; -} - -/* - * :nodoc: - */ -static VALUE -fsdbm_index(VALUE hash, VALUE value) -{ - rb_warn("SDBM#index is deprecated; use SDBM#key"); - return fsdbm_key(hash, value); -} - -/* call-seq: - * sdbm.select { |key, value| ... } -> Array - * - * Returns a new Array of key-value pairs for which the block returns +true+. - * - * Example: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db['apple'] = 'fruit' - * db['pear'] = 'fruit' - * db['spinach'] = 'vegetable' - * - * veggies = db.select do |key, value| - * value == 'vegetable' - * end #=> [["apple", "fruit"], ["pear", "fruit"]] - * end - */ -static VALUE -fsdbm_select(VALUE obj) -{ - VALUE new = rb_ary_new(); - datum key, val; - DBM *dbm; - struct dbmdata *dbmp; - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - VALUE assoc, v; - val = sdbm_fetch(dbm, key); - assoc = rb_assoc_new(rb_external_str_new(key.dptr, key.dsize), - rb_external_str_new(val.dptr, val.dsize)); - v = rb_yield(assoc); - if (RTEST(v)) { - rb_ary_push(new, assoc); - } - GetDBM2(obj, dbmp, dbm); - } - - return new; -} - -/* call-seq: - * sdbm.values_at(key, ...) -> Array - * - * Returns an Array of values corresponding to the given keys. - */ -static VALUE -fsdbm_values_at(int argc, VALUE *argv, VALUE obj) -{ - VALUE new = rb_ary_new2(argc); - int i; - - for (i=0; i value or nil - * sdbm.delete(key) { |key, value| ... } - * - * Deletes the key-value pair corresponding to the given +key+. If the - * +key+ exists, the deleted value will be returned, otherwise +nil+. - * - * If a block is provided, the deleted +key+ and +value+ will be passed to - * the block as arguments. If the +key+ does not exist in the database, the - * value will be +nil+. - */ -static VALUE -fsdbm_delete(VALUE obj, VALUE keystr) -{ - datum key, value; - struct dbmdata *dbmp; - DBM *dbm; - VALUE valstr; - - fdbm_modify(obj); - ExportStringValue(keystr); - key.dptr = RSTRING_PTR(keystr); - key.dsize = RSTRING_LENINT(keystr); - - GetDBM2(obj, dbmp, dbm); - dbmp->di_size = -1; - - value = sdbm_fetch(dbm, key); - if (value.dptr == 0) { - if (rb_block_given_p()) return rb_yield(keystr); - return Qnil; - } - - /* need to save value before sdbm_delete() */ - valstr = rb_external_str_new(value.dptr, value.dsize); - - if (sdbm_delete(dbm, key)) { - dbmp->di_size = -1; - rb_raise(rb_eDBMError, "dbm_delete failed"); - } - else if (dbmp->di_size >= 0) { - dbmp->di_size--; - } - return valstr; -} - -/* - * call-seq: - * sdbm.shift -> Array or nil - * - * Removes a key-value pair from the database and returns them as an - * Array. If the database is empty, returns +nil+. - */ -static VALUE -fsdbm_shift(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE keystr, valstr; - - fdbm_modify(obj); - GetDBM2(obj, dbmp, dbm); - key = sdbm_firstkey(dbm); - if (!key.dptr) return Qnil; - val = sdbm_fetch(dbm, key); - keystr = rb_external_str_new(key.dptr, key.dsize); - valstr = rb_external_str_new(val.dptr, val.dsize); - sdbm_delete(dbm, key); - if (dbmp->di_size >= 0) { - dbmp->di_size--; - } - - return rb_assoc_new(keystr, valstr); -} - -/* - * call-seq: - * sdbm.delete_if { |key, value| ... } -> self - * sdbm.reject! { |key, value| ... } -> self - * - * Iterates over the key-value pairs in the database, deleting those for - * which the block returns +true+. - */ -static VALUE -fsdbm_delete_if(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE keystr, valstr; - VALUE ret, ary = rb_ary_new(); - long i; - int status = 0, n; - - fdbm_modify(obj); - GetDBM2(obj, dbmp, dbm); - n = dbmp->di_size; - dbmp->di_size = -1; - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - keystr = rb_external_str_new(key.dptr, key.dsize); - valstr = rb_external_str_new(val.dptr, val.dsize); - ret = rb_protect(rb_yield, rb_assoc_new(rb_str_dup(keystr), valstr), &status); - if (status != 0) break; - if (RTEST(ret)) rb_ary_push(ary, keystr); - GetDBM2(obj, dbmp, dbm); - } - - for (i = 0; i < RARRAY_LEN(ary); i++) { - keystr = RARRAY_AREF(ary, i); - ExportStringValue(keystr); - key.dptr = RSTRING_PTR(keystr); - key.dsize = RSTRING_LENINT(keystr); - if (sdbm_delete(dbm, key)) { - rb_raise(rb_eDBMError, "sdbm_delete failed"); - } - } - if (status) rb_jump_tag(status); - if (n > 0) dbmp->di_size = n - RARRAY_LENINT(ary); - - return obj; -} - -/* - * call-seq: - * sdbm.clear -> self - * - * Deletes all data from the database. - */ -static VALUE -fsdbm_clear(VALUE obj) -{ - datum key; - struct dbmdata *dbmp; - DBM *dbm; - - fdbm_modify(obj); - GetDBM2(obj, dbmp, dbm); - dbmp->di_size = -1; - while (key = sdbm_firstkey(dbm), key.dptr) { - if (sdbm_delete(dbm, key)) { - rb_raise(rb_eDBMError, "sdbm_delete failed"); - } - } - dbmp->di_size = 0; - - return obj; -} - -/* - * call-seq: - * sdbm.invert -> Hash - * - * Returns a Hash in which the key-value pairs have been inverted. - * - * Example: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db.update('apple' => 'fruit', 'spinach' => 'vegetable') - * - * db.invert #=> {"fruit" => "apple", "vegetable" => "spinach"} - * end - */ -static VALUE -fsdbm_invert(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE keystr, valstr; - VALUE hash = rb_hash_new(); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - keystr = rb_external_str_new(key.dptr, key.dsize); - valstr = rb_external_str_new(val.dptr, val.dsize); - rb_hash_aset(hash, valstr, keystr); - } - return hash; -} - -/* - * call-seq: - * sdbm[key] = value -> value - * sdbm.store(key, value) -> value - * - * Stores a new +value+ in the database with the given +key+ as an index. - * - * If the +key+ already exists, this will update the +value+ associated with - * the +key+. - * - * Returns the given +value+. - */ -static VALUE -fsdbm_store(VALUE obj, VALUE keystr, VALUE valstr) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - - if (valstr == Qnil) { - fsdbm_delete(obj, keystr); - return Qnil; - } - - fdbm_modify(obj); - ExportStringValue(keystr); - ExportStringValue(valstr); - - key.dptr = RSTRING_PTR(keystr); - key.dsize = RSTRING_LENINT(keystr); - - val.dptr = RSTRING_PTR(valstr); - val.dsize = RSTRING_LENINT(valstr); - - GetDBM2(obj, dbmp, dbm); - dbmp->di_size = -1; - if (sdbm_store(dbm, key, val, DBM_REPLACE)) { -#ifdef HAVE_DBM_CLAERERR - sdbm_clearerr(dbm); -#endif - if (errno == EPERM) rb_sys_fail(0); - rb_raise(rb_eDBMError, "sdbm_store failed"); - } - - return valstr; -} - -static VALUE -update_i(RB_BLOCK_CALL_FUNC_ARGLIST(pair, dbm)) -{ - const VALUE *ptr; - Check_Type(pair, T_ARRAY); - if (RARRAY_LEN(pair) < 2) { - rb_raise(rb_eArgError, "pair must be [key, value]"); - } - ptr = RARRAY_CONST_PTR(pair); - fsdbm_store(dbm, ptr[0], ptr[1]); - return Qnil; -} - -/* - * call-seq: - * sdbm.update(pairs) -> self - * - * Insert or update key-value pairs. - * - * This method will work with any object which implements an each_pair - * method, such as a Hash. - */ -static VALUE -fsdbm_update(VALUE obj, VALUE other) -{ - rb_block_call(other, rb_intern("each_pair"), 0, 0, update_i, obj); - return obj; -} - -/* - * call-seq: - * sdbm.replace(pairs) -> self - * - * Empties the database, then inserts the given key-value pairs. - * - * This method will work with any object which implements an each_pair - * method, such as a Hash. - */ -static VALUE -fsdbm_replace(VALUE obj, VALUE other) -{ - fsdbm_clear(obj); - rb_block_call(other, rb_intern("each_pair"), 0, 0, update_i, obj); - return obj; -} - -/* - * call-seq: - * sdbm.length -> integer - * sdbm.size -> integer - * - * Returns the number of keys in the database. - */ -static VALUE -fsdbm_length(VALUE obj) -{ - datum key; - struct dbmdata *dbmp; - DBM *dbm; - int i = 0; - - GetDBM2(obj, dbmp, dbm); - if (dbmp->di_size > 0) return INT2FIX(dbmp->di_size); - - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - i++; - } - dbmp->di_size = i; - - return INT2FIX(i); -} - -/* - * call-seq: - * sdbm.empty? -> true or false - * - * Returns +true+ if the database is empty. - */ -static VALUE -fsdbm_empty_p(VALUE obj) -{ - datum key; - struct dbmdata *dbmp; - DBM *dbm; - - GetDBM(obj, dbmp); - if (dbmp->di_size < 0) { - dbm = dbmp->di_dbm; - - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - return Qfalse; - } - } - else { - if (dbmp->di_size) - return Qfalse; - } - return Qtrue; -} - -/* - * call-seq: - * sdbm.each_value - * sdbm.each_value { |value| ... } - * - * Iterates over each +value+ in the database. - * - * If no block is given, returns an Enumerator. - */ -static VALUE -fsdbm_each_value(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - - RETURN_ENUMERATOR(obj, 0, 0); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - rb_yield(rb_external_str_new(val.dptr, val.dsize)); - GetDBM2(obj, dbmp, dbm); - } - return obj; -} - -/* - * call-seq: - * sdbm.each_key - * sdbm.each_key { |key| ... } - * - * Iterates over each +key+ in the database. - * - * If no block is given, returns an Enumerator. - */ -static VALUE -fsdbm_each_key(VALUE obj) -{ - datum key; - struct dbmdata *dbmp; - DBM *dbm; - - RETURN_ENUMERATOR(obj, 0, 0); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - rb_yield(rb_external_str_new(key.dptr, key.dsize)); - GetDBM2(obj, dbmp, dbm); - } - return obj; -} - -/* - * call-seq: - * sdbm.each - * sdbm.each { |key, value| ... } - * sdbm.each_pair - * sdbm.each_pair { |key, value| ... } - * - * Iterates over each key-value pair in the database. - * - * If no block is given, returns an Enumerator. - */ -static VALUE -fsdbm_each_pair(VALUE obj) -{ - datum key, val; - DBM *dbm; - struct dbmdata *dbmp; - VALUE keystr, valstr; - - RETURN_ENUMERATOR(obj, 0, 0); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - keystr = rb_external_str_new(key.dptr, key.dsize); - valstr = rb_external_str_new(val.dptr, val.dsize); - rb_yield(rb_assoc_new(keystr, valstr)); - GetDBM2(obj, dbmp, dbm); - } - - return obj; -} - -/* - * call-seq: - * sdbm.keys -> Array - * - * Returns a new Array containing the keys in the database. - */ -static VALUE -fsdbm_keys(VALUE obj) -{ - datum key; - struct dbmdata *dbmp; - DBM *dbm; - VALUE ary; - - GetDBM2(obj, dbmp, dbm); - ary = rb_ary_new(); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - rb_ary_push(ary, rb_external_str_new(key.dptr, key.dsize)); - } - - return ary; -} - -/* - * call-seq: - * sdbm.values -> Array - * - * Returns a new Array containing the values in the database. - */ -static VALUE -fsdbm_values(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE ary; - - GetDBM2(obj, dbmp, dbm); - ary = rb_ary_new(); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - rb_ary_push(ary, rb_external_str_new(val.dptr, val.dsize)); - } - - return ary; -} - -/* - * call-seq: - * sdbm.include?(key) -> true or false - * sdbm.key?(key) -> true or false - * sdbm.member?(key) -> true or false - * sdbm.has_key?(key) -> true or false - * - * Returns +true+ if the database contains the given +key+. - */ -static VALUE -fsdbm_has_key(VALUE obj, VALUE keystr) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - - ExportStringValue(keystr); - key.dptr = RSTRING_PTR(keystr); - key.dsize = RSTRING_LENINT(keystr); - - GetDBM2(obj, dbmp, dbm); - val = sdbm_fetch(dbm, key); - if (val.dptr) return Qtrue; - return Qfalse; -} - -/* - * call-seq: - * sdbm.value?(key) -> true or false - * sdbm.has_value?(key) -> true or false - * - * Returns +true+ if the database contains the given +value+. - */ -static VALUE -fsdbm_has_value(VALUE obj, VALUE valstr) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - - ExportStringValue(valstr); - val.dptr = RSTRING_PTR(valstr); - val.dsize = RSTRING_LENINT(valstr); - - GetDBM2(obj, dbmp, dbm); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - if (val.dsize == RSTRING_LENINT(valstr) && - memcmp(val.dptr, RSTRING_PTR(valstr), val.dsize) == 0) - return Qtrue; - } - return Qfalse; -} - -/* - * call-seq: - * sdbm.to_a -> Array - * - * Returns a new Array containing each key-value pair in the database. - * - * Example: - * - * require 'sdbm' - * - * SDBM.open 'my_database' do |db| - * db.update('apple' => 'fruit', 'spinach' => 'vegetable') - * - * db.to_a #=> [["apple", "fruit"], ["spinach", "vegetable"]] - * end - */ -static VALUE -fsdbm_to_a(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE ary; - - GetDBM2(obj, dbmp, dbm); - ary = rb_ary_new(); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - rb_ary_push(ary, rb_assoc_new(rb_external_str_new(key.dptr, key.dsize), - rb_external_str_new(val.dptr, val.dsize))); - } - - return ary; -} - -/* - * call-seq: - * sdbm.to_hash -> Hash - * - * Returns a new Hash containing each key-value pair in the database. - */ -static VALUE -fsdbm_to_hash(VALUE obj) -{ - datum key, val; - struct dbmdata *dbmp; - DBM *dbm; - VALUE hash; - - GetDBM2(obj, dbmp, dbm); - hash = rb_hash_new(); - for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) { - val = sdbm_fetch(dbm, key); - rb_hash_aset(hash, rb_external_str_new(key.dptr, key.dsize), - rb_external_str_new(val.dptr, val.dsize)); - } - - return hash; -} - -/* - * call-seq: - * sdbm.reject { |key, value| ... } -> Hash - * - * Creates a new Hash using the key-value pairs from the database, then - * calls Hash#reject with the given block, which returns a Hash with - * only the key-value pairs for which the block returns +false+. - */ -static VALUE -fsdbm_reject(VALUE obj) -{ - return rb_hash_delete_if(fsdbm_to_hash(obj)); -} - -void -Init_sdbm(void) -{ - rb_cDBM = rb_define_class("SDBM", rb_cObject); - rb_eDBMError = rb_define_class("SDBMError", rb_eStandardError); - /* Document-class: SDBMError - * Exception class used to return errors from the sdbm library. - */ - rb_include_module(rb_cDBM, rb_mEnumerable); - - rb_define_alloc_func(rb_cDBM, fsdbm_alloc); - rb_define_singleton_method(rb_cDBM, "open", fsdbm_s_open, -1); - - rb_define_method(rb_cDBM, "initialize", fsdbm_initialize, -1); - rb_define_method(rb_cDBM, "close", fsdbm_close, 0); - rb_define_method(rb_cDBM, "closed?", fsdbm_closed, 0); - rb_define_method(rb_cDBM, "[]", fsdbm_aref, 1); - rb_define_method(rb_cDBM, "fetch", fsdbm_fetch_m, -1); - rb_define_method(rb_cDBM, "[]=", fsdbm_store, 2); - rb_define_method(rb_cDBM, "store", fsdbm_store, 2); - rb_define_method(rb_cDBM, "index", fsdbm_index, 1); - rb_define_method(rb_cDBM, "key", fsdbm_key, 1); - rb_define_method(rb_cDBM, "select", fsdbm_select, 0); - rb_define_method(rb_cDBM, "values_at", fsdbm_values_at, -1); - rb_define_method(rb_cDBM, "length", fsdbm_length, 0); - rb_define_method(rb_cDBM, "size", fsdbm_length, 0); - rb_define_method(rb_cDBM, "empty?", fsdbm_empty_p, 0); - rb_define_method(rb_cDBM, "each", fsdbm_each_pair, 0); - rb_define_method(rb_cDBM, "each_value", fsdbm_each_value, 0); - rb_define_method(rb_cDBM, "each_key", fsdbm_each_key, 0); - rb_define_method(rb_cDBM, "each_pair", fsdbm_each_pair, 0); - rb_define_method(rb_cDBM, "keys", fsdbm_keys, 0); - rb_define_method(rb_cDBM, "values", fsdbm_values, 0); - rb_define_method(rb_cDBM, "shift", fsdbm_shift, 0); - rb_define_method(rb_cDBM, "delete", fsdbm_delete, 1); - rb_define_method(rb_cDBM, "delete_if", fsdbm_delete_if, 0); - rb_define_method(rb_cDBM, "reject!", fsdbm_delete_if, 0); - rb_define_method(rb_cDBM, "reject", fsdbm_reject, 0); - rb_define_method(rb_cDBM, "clear", fsdbm_clear, 0); - rb_define_method(rb_cDBM,"invert", fsdbm_invert, 0); - rb_define_method(rb_cDBM,"update", fsdbm_update, 1); - rb_define_method(rb_cDBM,"replace", fsdbm_replace, 1); - - rb_define_method(rb_cDBM, "has_key?", fsdbm_has_key, 1); - rb_define_method(rb_cDBM, "include?", fsdbm_has_key, 1); - rb_define_method(rb_cDBM, "key?", fsdbm_has_key, 1); - rb_define_method(rb_cDBM, "member?", fsdbm_has_key, 1); - rb_define_method(rb_cDBM, "has_value?", fsdbm_has_value, 1); - rb_define_method(rb_cDBM, "value?", fsdbm_has_value, 1); - - rb_define_method(rb_cDBM, "to_a", fsdbm_to_a, 0); - rb_define_method(rb_cDBM, "to_hash", fsdbm_to_hash, 0); -} -- cgit v1.2.3