/*
This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2009 GNUnet e.V.
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
- * @file include/gnunet_constants.h
- * @brief "global" constants for performance tuning
* @author Christian Grothoff
+ *
+ * @file
+ * Global constants for performance tuning
+ *
+ * @defgroup constants Constant definitions
+ * Global constants for performance tuning
+ * @{
*/
#ifndef GNUNET_CONSTANTS_H
#endif
#endif
-#include "gnunet_bandwidth_lib.h"
+
/**
* Bandwidth (in/out) to assume initially (before either peer has
#define GNUNET_CONSTANTS_QUOTA_VIOLATION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2)
/**
- * How long do we wait after a FORK+EXEC before testing for the
- * resulting process to be up (port open, waitpid, etc.)?
- */
-#define GNUNET_CONSTANTS_EXEC_WAIT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 200)
-
-/**
- * After how long do we retry a service connection that was
- * unavailable? Used in cases where an exponential back-off
- * seems inappropriate.
- */
-#define GNUNET_CONSTANTS_SERVICE_RETRY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 500)
-
-/**
- * After how long do we consider a service irresponsive
+ * After how long do we consider a service unresponsive
* even if we assume that the service commonly does not
* respond instantly (DNS, Database, etc.).
*/
*/
#define GNUNET_CONSTANTS_MAX_CORK_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
+/**
+ * After what amount of latency for a message do we print a warning?
+ */
+#define GNUNET_CONSTANTS_LATENCY_WARN GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3)
+
/**
* Until which load do we consider the peer overly idle
* (which means that we would like to use more resources).<p>
#define GNUNET_CONSTANTS_IDLE_LOAD_THRESHOLD 70
/**
- * Size of the 'struct EncryptedMessage' of the core (which
- * is the per-message overhead of the core).
+ * For how long do we allow unused bandwidth
+ * from the past to carry over into the future? (in seconds)
*/
-#define GNUNET_CONSTANTS_CORE_SIZE_ENCRYPTED_MESSAGE (24 + sizeof (GNUNET_HashCode))
+#define GNUNET_CONSTANTS_MAX_BANDWIDTH_CARRY_S 5
+
/**
- * Size of the 'struct OutboundMessage' of the transport
- * (which, in combination with the
- * GNUNET_CONSTANTS_CORE_SIZE_ENCRYPTED_MESSAGE) defines
- * the headers that must be pre-pendable to all GNUnet
- * messages. Taking GNUNET_SERVER_MAX_MESSAGE_SIZE
- * and subtracting these two constants defines the largest
- * message core can handle.
+ * After how long do we expire an address in a HELLO that we just
+ * validated? This value is also used for our own addresses when we
+ * create a HELLO.
*/
-#define GNUNET_CONSTANTS_TRANSPORT_SIZE_OUTBOUND_MESSAGE (16 + sizeof (struct GNUNET_PeerIdentity))
+#define GNUNET_CONSTANTS_HELLO_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 12)
+
+
+/**
+ * How long do we cache records at most in the DHT?
+ */
+#define GNUNET_CONSTANTS_DHT_MAX_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 24)
+
+/**
+ * Size of the `struct EncryptedMessage` of the core (which
+ * is the per-message overhead of the core).
+ */
+#define GNUNET_CONSTANTS_CORE_SIZE_ENCRYPTED_MESSAGE (24 + sizeof (struct GNUNET_HashCode))
/**
* What is the maximum size for encrypted messages? Note that this
* Set to a value close to 64k but not so close that transports will
* have trouble with their headers.
*
- * Could theoretically be 64k minus (GNUNET_CONSTANTS_CORE_SIZE_ENCRYPTED_MESSAGE +
- * GNUNET_CONSTANTS_TRANSPORT_SIZE_OUTBOUND_MESSAGE), but we're going
- * to be more conservative for now.
+ * Could theoretically be 64k minus (#GNUNET_CONSTANTS_CORE_SIZE_ENCRYPTED_MESSAGE +
+ * #GNUNET_CONSTANTS_TRANSPORT_SIZE_OUTBOUND_MESSAGE), but we're going
+ * to be more conservative for now.
*/
#define GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE (63 * 1024)
+/**
+ * Size of the CADET message overhead:
+ * = sizeof (struct GNUNET_CADET_TunnelEncryptedMessage)
+ * + sizeof (struct GNUNET_CADET_ChannelAppDataMessage)
+ * + sizeof (struct GNUNET_CADET_ConnectionEncryptedAckMessage))
+ *
+ * Checked for correcteness in gnunet-service-cadet_tunnel.c: GCT_init().
+ */
+#define GNUNET_CONSTANTS_CADET_P2P_OVERHEAD 164
+
+/**
+ * Maximum message size that can be sent on CADET.
+ */
+#define GNUNET_CONSTANTS_MAX_CADET_MESSAGE_SIZE \
+(GNUNET_CONSTANTS_MAX_ENCRYPTED_MESSAGE_SIZE - GNUNET_CONSTANTS_CADET_P2P_OVERHEAD)
+
+/**
+ * Largest block that can be stored in the DHT.
+ */
+#define GNUNET_CONSTANTS_MAX_BLOCK_SIZE (62 * 1024)
+
+
+/**
+ * K-value that must be used for the bloom filters in 'GET'
+ * queries.
+ */
+#define GNUNET_CONSTANTS_BLOOMFILTER_K 16
+
+
#if 0 /* keep Emacsens' auto-indent happy */
#endif
#endif
+
+/** @} */ /* end of group */
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