db_server_cxxproc.cpp

mysql数据库源代码

__db_pagesize_proc(
	long dbpcl_id,
	u_int32_t pagesize,
	__db_pagesize_reply *replyp)
/* END __db_pagesize_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->set_pagesize(pagesize);

	replyp->status = ret;
	return;
}

/* BEGIN __db_pget_proc */
extern "C" void
__db_pget_proc(
	long dbpcl_id,
	long txnpcl_id,
	u_int32_t skeydlen,
	u_int32_t skeydoff,
	u_int32_t skeyulen,
	u_int32_t skeyflags,
	void *skeydata,
	u_int32_t skeysize,
	u_int32_t pkeydlen,
	u_int32_t pkeydoff,
	u_int32_t pkeyulen,
	u_int32_t pkeyflags,
	void *pkeydata,
	u_int32_t pkeysize,
	u_int32_t datadlen,
	u_int32_t datadoff,
	u_int32_t dataulen,
	u_int32_t dataflags,
	void *datadata,
	u_int32_t datasize,
	u_int32_t flags,
	__db_pget_reply *replyp,
	int * freep)
/* END __db_pget_proc */
{
	Db *dbp;
	DbTxn *txnp;
	ct_entry *dbp_ctp, *txnp_ctp;
	int key_alloc, ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;
	if (txnpcl_id != 0) {
		ACTIVATE_CTP(txnp_ctp, txnpcl_id, CT_TXN);
		txnp = (DbTxn *)txnp_ctp->ct_anyp;
	} else
		txnp = NULL;

	*freep = 0;

	/*
	 * Ignore memory related flags on server.
	 */
	/* Set up key and data */
	Dbt skey(skeydata, skeysize);
	skey.set_dlen(skeydlen);
	skey.set_ulen(skeyulen);
	skey.set_doff(skeydoff);
	skey.set_flags(DB_DBT_MALLOC | (skeyflags & DB_DBT_PARTIAL));

	Dbt pkey(pkeydata, pkeysize);
	pkey.set_dlen(pkeydlen);
	pkey.set_ulen(pkeyulen);
	pkey.set_doff(pkeydoff);
	pkey.set_flags(DB_DBT_MALLOC | (pkeyflags & DB_DBT_PARTIAL));

	Dbt data(datadata, datasize);
	data.set_dlen(datadlen);
	data.set_ulen(dataulen);
	data.set_doff(datadoff);
	data.set_flags(DB_DBT_MALLOC | (dataflags & DB_DBT_PARTIAL));

	/* Got all our stuff, now do the get */
	ret = dbp->pget(txnp, &skey, &pkey, &data, flags);
	/*
	 * Otherwise just status.
	 */
	if (ret == 0) {
		/*
		 * XXX
		 * We need to xdr_free whatever we are returning, next time.
		 * However, DB does not allocate a new key if one was given
		 * and we'd be free'ing up space allocated in the request.
		 * So, allocate a new key/data pointer if it is the same one
		 * as in the request.
		 */
		*freep = 1;
		/*
		 * Key
		 */
		key_alloc = 0;
		if (skey.get_data() == skeydata) {
			ret = __os_umalloc(dbp->get_DB()->dbenv,
			    skey.get_size(), &replyp->skeydata.skeydata_val);
			if (ret != 0) {
				__os_ufree(dbp->get_DB()->dbenv, skey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, pkey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, data.get_data());
				goto err;
			}
			key_alloc = 1;
			memcpy(replyp->skeydata.skeydata_val, skey.get_data(),
			    skey.get_size());
		} else
			replyp->skeydata.skeydata_val = (char *)skey.get_data();

		replyp->skeydata.skeydata_len = skey.get_size();

		/*
		 * Primary key
		 */
		if (pkey.get_data() == pkeydata) {
			ret = __os_umalloc(dbp->get_DB()->dbenv,
			     pkey.get_size(), &replyp->pkeydata.pkeydata_val);
			if (ret != 0) {
				__os_ufree(dbp->get_DB()->dbenv, skey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, pkey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, data.get_data());
				if (key_alloc)
					__os_ufree(dbp->get_DB()->dbenv,
					    replyp->skeydata.skeydata_val);
				goto err;
			}
			/*
			 * We can set it to 2, because they cannot send the
			 * pkey over without sending the skey over too.
			 * So if they did send a pkey, they must have sent
			 * the skey as well.
			 */
			key_alloc = 2;
			memcpy(replyp->pkeydata.pkeydata_val, pkey.get_data(),
			    pkey.get_size());
		} else
			replyp->pkeydata.pkeydata_val = (char *)pkey.get_data();
		replyp->pkeydata.pkeydata_len = pkey.get_size();

		/*
		 * Data
		 */
		if (data.get_data() == datadata) {
			ret = __os_umalloc(dbp->get_DB()->dbenv,
			     data.get_size(), &replyp->datadata.datadata_val);
			if (ret != 0) {
				__os_ufree(dbp->get_DB()->dbenv, skey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, pkey.get_data());
				__os_ufree(dbp->get_DB()->dbenv, data.get_data());
				/*
				 * If key_alloc is 1, just skey needs to be
				 * freed, if key_alloc is 2, both skey and pkey
				 * need to be freed.
				 */
				if (key_alloc--)
					__os_ufree(dbp->get_DB()->dbenv,
					    replyp->skeydata.skeydata_val);
				if (key_alloc)
					__os_ufree(dbp->get_DB()->dbenv,
					    replyp->pkeydata.pkeydata_val);
				goto err;
			}
			memcpy(replyp->datadata.datadata_val, data.get_data(),
			    data.get_size());
		} else
			replyp->datadata.datadata_val = (char *)data.get_data();
		replyp->datadata.datadata_len = data.get_size();
	} else {
err:		replyp->skeydata.skeydata_val = NULL;
		replyp->skeydata.skeydata_len = 0;
		replyp->pkeydata.pkeydata_val = NULL;
		replyp->pkeydata.pkeydata_len = 0;
		replyp->datadata.datadata_val = NULL;
		replyp->datadata.datadata_len = 0;
		*freep = 0;
	}
	replyp->status = ret;
	return;
}

/* BEGIN __db_put_proc */
extern "C" void
__db_put_proc(
	long dbpcl_id,
	long txnpcl_id,
	u_int32_t keydlen,
	u_int32_t keydoff,
	u_int32_t keyulen,
	u_int32_t keyflags,
	void *keydata,
	u_int32_t keysize,
	u_int32_t datadlen,
	u_int32_t datadoff,
	u_int32_t dataulen,
	u_int32_t dataflags,
	void *datadata,
	u_int32_t datasize,
	u_int32_t flags,
	__db_put_reply *replyp,
	int * freep)
/* END __db_put_proc */
{
	Db *dbp;
	DbTxn *txnp;
	ct_entry *dbp_ctp, *txnp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;
	if (txnpcl_id != 0) {
		ACTIVATE_CTP(txnp_ctp, txnpcl_id, CT_TXN);
		txnp = (DbTxn *)txnp_ctp->ct_anyp;
	} else
		txnp = NULL;

	*freep = 0;

	/* Set up key and data */
	Dbt key(keydata, keysize);
	key.set_dlen(keydlen);
	key.set_ulen(keyulen);
	key.set_doff(keydoff);
	key.set_flags(DB_DBT_MALLOC | (keyflags & DB_DBT_PARTIAL));

	Dbt data(datadata, datasize);
	data.set_dlen(datadlen);
	data.set_ulen(dataulen);
	data.set_doff(datadoff);
	data.set_flags(dataflags);

	/* Got all our stuff, now do the put */
	ret = dbp->put(txnp, &key, &data, flags);
	/*
	 * If the client did a DB_APPEND, set up key in reply.
	 * Otherwise just status.
	 */
	if (ret == 0 && (flags == DB_APPEND)) {
		/*
		 * XXX
		 * We need to xdr_free whatever we are returning, next time.
		 * However, DB does not allocate a new key if one was given
		 * and we'd be free'ing up space allocated in the request.
		 * So, allocate a new key/data pointer if it is the same one
		 * as in the request.
		 */
		*freep = 1;
		/*
		 * Key
		 */
		if (key.get_data() == keydata) {
			ret = __os_umalloc(dbp->get_DB()->dbenv,
			    key.get_size(), &replyp->keydata.keydata_val);
			if (ret != 0) {
				__os_ufree(dbp->get_DB()->dbenv, key.get_data());
				goto err;
			}
			memcpy(replyp->keydata.keydata_val, key.get_data(), key.get_size());
		} else
			replyp->keydata.keydata_val = (char *)key.get_data();

		replyp->keydata.keydata_len = key.get_size();
	} else {
err:		replyp->keydata.keydata_val = NULL;
		replyp->keydata.keydata_len = 0;
		*freep = 0;
	}
	replyp->status = ret;
	return;
}

/* BEGIN __db_re_delim_proc */
extern "C" void
__db_re_delim_proc(
	long dbpcl_id,
	u_int32_t delim,
	__db_re_delim_reply *replyp)
/* END __db_re_delim_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->set_re_delim(delim);

	replyp->status = ret;
	return;
}

/* BEGIN __db_re_len_proc */
extern "C" void
__db_re_len_proc(
	long dbpcl_id,
	u_int32_t len,
	__db_re_len_reply *replyp)
/* END __db_re_len_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->set_re_len(len);

	replyp->status = ret;
	return;
}

/* BEGIN __db_re_pad_proc */
extern "C" void
__db_re_pad_proc(
	long dbpcl_id,
	u_int32_t pad,
	__db_re_pad_reply *replyp)
/* END __db_re_pad_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->set_re_pad(pad);

	replyp->status = ret;
	return;
}

/* BEGIN __db_remove_proc */
extern "C" void
__db_remove_proc(
	long dbpcl_id,
	char *name,
	char *subdb,
	u_int32_t flags,
	__db_remove_reply *replyp)
/* END __db_remove_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->remove(name, subdb, flags);
	__dbdel_ctp(dbp_ctp);

	replyp->status = ret;
	return;
}

/* BEGIN __db_rename_proc */
extern "C" void
__db_rename_proc(
	long dbpcl_id,
	char *name,
	char *subdb,
	char *newname,
	u_int32_t flags,
	__db_rename_reply *replyp)
/* END __db_rename_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->rename(name, subdb, newname, flags);
	__dbdel_ctp(dbp_ctp);

	replyp->status = ret;
	return;
}

/* BEGIN __db_stat_proc */
extern "C" void
__db_stat_proc(
	long dbpcl_id,
	u_int32_t flags,
	__db_stat_reply *replyp,
	int * freep)
/* END __db_stat_proc */
{
	Db *dbp;
	DBTYPE type;
	ct_entry *dbp_ctp;
	u_int32_t *q, *p, *retsp;
	int i, len, ret;
	void *sp;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->stat(&sp, flags);
	replyp->status = ret;
	if (ret != 0)
		return;
	/*
	 * We get here, we have success.  Allocate an array so that
	 * we can use the list generator.  Generate the reply, free
	 * up the space.
	 */
	/*
	 * XXX This assumes that all elements of all stat structures
	 * are u_int32_t fields.  They are, currently.
	 */
	(void)dbp->get_type(&type);
	if (type == DB_HASH)
		len = sizeof(DB_HASH_STAT);
	else if (type == DB_QUEUE)
		len = sizeof(DB_QUEUE_STAT);
	else            /* BTREE or RECNO are same stats */
		len = sizeof(DB_BTREE_STAT);
	replyp->stats.stats_len = len / sizeof(u_int32_t);

	if ((ret = __os_umalloc(dbp->get_DB()->dbenv,
	    len * replyp->stats.stats_len, &retsp)) != 0)
		goto out;
	for (i = 0, q = retsp, p = (u_int32_t *)sp; i < len;
	    i++, q++, p++)
		*q = *p;
	replyp->stats.stats_val = retsp;
	__os_ufree(dbp->get_DB()->dbenv, sp);
	if (ret == 0)
		*freep = 1;
out:
	replyp->status = ret;
	return;
}

/* BEGIN __db_sync_proc */
extern "C" void
__db_sync_proc(
	long dbpcl_id,
	u_int32_t flags,
	__db_sync_reply *replyp)
/* END __db_sync_proc */
{
	Db *dbp;
	ct_entry *dbp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;

	ret = dbp->sync(flags);

	replyp->status = ret;
	return;
}

/* BEGIN __db_truncate_proc */
extern "C" void
__db_truncate_proc(
	long dbpcl_id,
	long txnpcl_id,
	u_int32_t flags,
	__db_truncate_reply *replyp)
/* END __db_truncate_proc */
{
	Db *dbp;
	DbTxn *txnp;
	ct_entry *dbp_ctp, *txnp_ctp;
	u_int32_t count;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;
	if (txnpcl_id != 0) {
		ACTIVATE_CTP(txnp_ctp, txnpcl_id, CT_TXN);
		txnp = (DbTxn *)txnp_ctp->ct_anyp;
	} else
		txnp = NULL;

	ret = dbp->truncate(txnp, &count, flags);
	replyp->status = ret;
	if (ret == 0)
		replyp->count = count;
	return;
}

/* BEGIN __db_cursor_proc */
extern "C" void
__db_cursor_proc(
	long dbpcl_id,
	long txnpcl_id,
	u_int32_t flags,
	__db_cursor_reply *replyp)
/* END __db_cursor_proc */
{
	Db *dbp;
	Dbc *dbc;
	DbTxn *txnp;
	ct_entry *dbc_ctp, *env_ctp, *dbp_ctp, *txnp_ctp;
	int ret;

	ACTIVATE_CTP(dbp_ctp, dbpcl_id, CT_DB);
	dbp = (Db *)dbp_ctp->ct_anyp;
	dbc_ctp = new_ct_ent(&replyp->status);
	if (dbc_ctp == NULL)
		return;

	if (txnpcl_id != 0) {
		ACTIVATE_CTP(txnp_ctp, txnpcl_id, CT_TXN);
		txnp = (DbTxn *)txnp_ctp->ct_anyp;
		dbc_ctp->ct_activep = txnp_ctp->ct_activep;
	} else
		txnp = NULL;

	if ((ret = dbp->cursor(txnp, &dbc, flags)) == 0) {
		dbc_ctp->ct_dbc = dbc;
		dbc_ctp->ct_type = CT_CURSOR;
		dbc_ctp->ct_parent = dbp_ctp;
		env_ctp = dbp_ctp->ct_envparent;
		dbc_ctp->ct_envparent = env_ctp;
		__dbsrv_settimeout(dbc_ctp, env_ctp->ct_timeout);
		__dbsrv_active(dbc_ctp);
		replyp->dbcidcl_id = dbc_ctp->ct_id;
	} else
		__dbclear_ctp(dbc_ctp);

	replyp->status = ret;
	return;
}

/* BEGIN __db_join_proc */
extern "C" void
__db_join_proc(
	long dbpcl_id,
	u_int32_t *curs,
	u_int32_t curslen,
	u_int32_t flags,
	__db_join_reply *replyp)
/* END __db_join_proc */