C++ (Cpp) DB_SEQUENCE::openの例

コード例 #1

ファイル: db_sequence.c プロジェクト: crossbuild/db

static int btreeSeqCreate(
    sqlite3_context *context, Btree *p, SEQ_COOKIE *cookie)
{
	BtShared *pBt;
	DBT key;
	DB_SEQUENCE *seq;
	char seq_key[BT_MAX_SEQ_NAME];
	int ret, seq_len;
	u_int32_t flags;

	pBt = p->pBt;

	if (cookie->cache != 0) {
		if ((ret = db_sequence_create(&seq, pBt->metadb, 0)) != 0)
			return ret;

		if (cookie->cache > 0)
			seq->set_cachesize(seq, cookie->cache);
		if (cookie->decrementing != 0)
			seq->set_flags(seq, DB_SEQ_DEC);

		/* Always set min_val and max_val */
		if ((ret =
		    seq->set_range(seq, cookie->min_val, cookie->max_val)) != 0)
			return ret;
		if ((ret = seq->initial_value(seq, cookie->start_val)) != 0)
			return ret;

		flags = DB_CREATE;
#ifndef BDBSQL_SINGLE_THREAD
		flags |= DB_THREAD;
#endif
		sqlite3_snprintf(
		    BT_MAX_SEQ_NAME, seq_key, "%s_db", cookie->name);
		seq_len = (int)strlen(seq_key);
		memset(&key, 0, sizeof(key));
		key.data = seq_key;
		key.size = key.ulen = seq_len;
		key.flags = DB_DBT_USERMEM;

		if ((ret = seq->open(seq, p->savepoint_txn, &key, flags)) != 0)
			return ret;

		cookie->handle = seq;
	} else {
		cookie->handle = NULL;
		cookie->val = cookie->start_val;
		if ((cookie->decrementing &&
		    cookie->start_val < cookie->min_val) ||
		    (!cookie->decrementing &&
		    cookie->start_val > cookie->max_val) ||
		    cookie->min_val == cookie->max_val)
			return EINVAL;
	}

	if ((ret = btreeSeqPutCookie(context, p, cookie, DB_NOOVERWRITE)) != 0)
		return (ret);

	return (0);
}

コード例 #2

ファイル: rpmseq-js.c プロジェクト: avokhmin/RPM5

static JSBool
rpmseq_Open(JSContext *cx, uintN argc, jsval *vp)
{
    jsval *argv = JS_ARGV(cx , vp);
    JSObject *obj = JS_NewObjectForConstructor(cx , vp);
    if(!obj) {
	JS_ReportError(cx , "Failed to create 'this' object");
	return JS_FALSE;
    }
    void * ptr = JS_GetInstancePrivate(cx, obj, &rpmseqClass, NULL);
    DB_SEQUENCE * seq = ptr;
    JSObject * o = NULL;
    DB_TXN * _txn = NULL;
    jsval _kv = JSVAL_NULL;
    _RPMDBT _k = _RPMDBT_INIT;
    uint32_t _flags = DB_CREATE;
    JSBool ok = JS_FALSE;

_METHOD_DEBUG_ENTRY(_debug);

    if (seq == NULL) goto exit;
    JS_SET_RVAL(cx, vp, JSVAL_FALSE);

    if (!(ok = JS_ConvertArguments(cx, argc, argv, "ov/u", &o, &_kv, &_flags)))
	goto exit;

    if (o && OBJ_IS_RPMTXN(cx, o))
	_txn = JS_GetInstancePrivate(cx, o, &rpmtxnClass, NULL);
    if (rpmdb_v2dbt(cx, _kv, &_k))
	goto exit;

    {	int ret = seq->open(seq, _txn, _RPMDBT_PTR(_k), _flags);
	switch (ret) {
	default:
	    fprintf(stderr, "DB_SEQUENCE->open: %s\n", db_strerror(ret));
	    goto exit;
	    break;
	case 0:
	    JS_SET_RVAL(cx, vp, JSVAL_TRUE);
	    seq->api_internal = obj;
	    break;
	}
    }

    ok = JS_TRUE;

exit:
    return ok;
}

コード例 #3

ファイル: db_sequence.c プロジェクト: SvenDowideit/clearlinux

static int btreeSeqOpen(
    sqlite3_context *context, Btree *p, SEQ_COOKIE *cookie)
{
	BtShared *pBt;
	DBT key;
	DB_SEQUENCE *seq;
	char seq_key[BT_MAX_SEQ_NAME];
	int ret, seq_len;
	u_int32_t flags;

	pBt = p->pBt;

	if ((ret = btreeSeqGetCookie(context, p, cookie, 0)) != 0)
		return (ret);

	if (cookie->cache != 0) {
		if ((ret = db_sequence_create(&seq, pBt->metadb, 0)) != 0)
			return ret;

		seq->set_cachesize(seq, cookie->cache);
		flags = 0;
#ifdef BDBSQL_SINGLE_THREAD
		flags |= DB_THREAD;
#endif
		sqlite3_snprintf(
		    BT_MAX_SEQ_NAME, seq_key, "%s_db", cookie->name);
		seq_len = (int)strlen(seq_key);
		memset(&key, 0, sizeof(key));
		key.data = seq_key;
		key.size = key.ulen = seq_len;
		key.flags = DB_DBT_USERMEM;

		if ((ret = seq->open(
		    seq, NULL, &key, flags)) != 0) {
			(void)seq->close(seq, 0);
			return ret;
		}
		cookie->handle = seq;
	}

	return (0);
}