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[GNUnet-SVN] r17475 - gnunet/src/ats
From: |
gnunet |
Subject: |
[GNUnet-SVN] r17475 - gnunet/src/ats |
Date: |
Fri, 14 Oct 2011 10:03:03 +0200 |
Author: grothoff
Date: 2011-10-14 10:03:02 +0200 (Fri, 14 Oct 2011)
New Revision: 17475
Modified:
gnunet/src/ats/gnunet-service-ats.c
gnunet/src/ats/gnunet-service-ats_addresses.c
gnunet/src/ats/gnunet-service-ats_addresses.h
gnunet/src/ats/gnunet-service-ats_performance.c
gnunet/src/ats/gnunet-service-ats_performance.h
gnunet/src/ats/gnunet-service-ats_scheduling.c
gnunet/src/ats/gnunet-service-ats_scheduling.h
Log:
more ATS implementation: message parsing and generation:
Modified: gnunet/src/ats/gnunet-service-ats.c
===================================================================
--- gnunet/src/ats/gnunet-service-ats.c 2011-10-14 07:23:44 UTC (rev 17474)
+++ gnunet/src/ats/gnunet-service-ats.c 2011-10-14 08:03:02 UTC (rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats.c
* @brief ats service
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
@@ -32,6 +33,13 @@
#include "ats.h"
+/**
+ * We have received a 'ClientStartMessage' from a client. Find out which
+ * type of client it is and notify the respective subsystem.
+ *
+ * @param client handle to the client
+ * @param message the start message
+ */
static void
handle_ats_start (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
@@ -44,10 +52,10 @@
switch (ntohl (msg->start_flag))
{
case START_FLAG_SCHEDULING:
- GAS_add_scheduling_client (client);
+ GAS_scheduling_add_client (client);
break;
case START_FLAG_PERFORMANCE_WITH_PIC:
- GAS_add_performance_client (client);
+ GAS_performance_add_client (client);
break;
case START_FLAG_PERFORMANCE_NO_PIC:
break;
@@ -70,8 +78,8 @@
static void
client_disconnect_handler (void *cls, struct GNUNET_SERVER_Client *client)
{
- GAS_remove_scheduling_client (client);
- GAS_remove_performance_client (client);
+ GAS_scheduling_remove_client (client);
+ GAS_performance_remove_client (client);
}
@@ -85,6 +93,7 @@
cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
GAS_addresses_done ();
+ GAS_scheduling_done ();
}
@@ -114,6 +123,7 @@
GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_CHANGE, 0},
{NULL, NULL, 0, 0}
};
+ GAS_scheduling_init (server);
GAS_addresses_init ();
GNUNET_SERVER_disconnect_notify (server,
&client_disconnect_handler,
Modified: gnunet/src/ats/gnunet-service-ats_addresses.c
===================================================================
--- gnunet/src/ats/gnunet-service-ats_addresses.c 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_addresses.c 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats_addresses.c
* @brief ats service address management
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet-service-ats_addresses.h"
@@ -82,10 +83,10 @@
void
-GAS_address_update (struct GNUNET_SERVER_Client *client,
- const struct GNUNET_PeerIdentity *peer,
+GAS_address_update (const struct GNUNET_PeerIdentity *peer,
const char *plugin_name,
const void *plugin_addr, size_t plugin_addr_len,
+ struct GNUNET_SERVER_Client *session_client,
uint32_t session_id,
const struct GNUNET_TRANSPORT_ATS_Information *atsi,
uint32_t atsi_count)
@@ -113,8 +114,11 @@
void
-GAS_address_destroyed (struct GNUNET_SERVER_Client *client,
- ...)
+GAS_address_destroyed (const struct GNUNET_PeerIdentity *peer,
+ const char *plugin_name,
+ const void *plugin_addr, size_t plugin_addr_len,
+ struct GNUNET_SERVER_Client *session_client,
+ uint32_t session_id)
{
#if 0
// struct AddressDestroyedMessage * msg = (struct AddressDestroyedMessage *)
message;
@@ -127,6 +131,12 @@
}
+void
+GAS_addresses_request_address (const struct GNUNET_PeerIdentity *peer)
+{
+}
+
+
/**
*/
void
Modified: gnunet/src/ats/gnunet-service-ats_addresses.h
===================================================================
--- gnunet/src/ats/gnunet-service-ats_addresses.h 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_addresses.h 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats_addresses.c
* @brief ats service address management
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_ATS_ADDRESSES_H
#define GNUNET_SERVICE_ATS_ADDRESSES_H
@@ -42,12 +43,25 @@
void
-GAS_address_update (struct GNUNET_SERVER_Client *client,
- const struct GNUNET_PeerIdentity *peer,
+GAS_address_update (const struct GNUNET_PeerIdentity *peer,
const char *plugin_name,
const void *plugin_addr, size_t plugin_addr_len,
+ struct GNUNET_SERVER_Client *session_client,
uint32_t session_id,
const struct GNUNET_TRANSPORT_ATS_Information *atsi,
uint32_t atsi_count);
+
+void
+GAS_address_destroyed (const struct GNUNET_PeerIdentity *peer,
+ const char *plugin_name,
+ const void *plugin_addr, size_t plugin_addr_len,
+ struct GNUNET_SERVER_Client *session_client,
+ uint32_t session_id);
+
+
+void
+GAS_addresses_request_address (const struct GNUNET_PeerIdentity *peer);
+
+
#endif
Modified: gnunet/src/ats/gnunet-service-ats_performance.c
===================================================================
--- gnunet/src/ats/gnunet-service-ats_performance.c 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_performance.c 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats_performance.c
* @brief ats service, interaction with 'performance' API
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet-service-ats_performance.h"
@@ -63,7 +64,7 @@
void
-GAS_add_performance_client (struct GNUNET_SERVER_Client *client)
+GAS_performance_add_client (struct GNUNET_SERVER_Client *client)
{
struct PerformanceClient * pc;
@@ -75,7 +76,7 @@
void
-GAS_remove_performance_client (struct GNUNET_SERVER_Client *client)
+GAS_performance_remove_client (struct GNUNET_SERVER_Client *client)
{
struct PerformanceClient * pc;
Modified: gnunet/src/ats/gnunet-service-ats_performance.h
===================================================================
--- gnunet/src/ats/gnunet-service-ats_performance.h 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_performance.h 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats_performance.h
* @brief ats service, interaction with 'performance' API
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_ATS_PERFORMANCE_H
#define GNUNET_SERVICE_ATS_PERFORMANCE_H
@@ -29,11 +30,11 @@
#include "gnunet_util_lib.h"
void
-GAS_add_performance_client (struct GNUNET_SERVER_Client *client);
+GAS_performance_add_client (struct GNUNET_SERVER_Client *client);
void
-GAS_remove_performance_client (struct GNUNET_SERVER_Client *client);
+GAS_performance_remove_client (struct GNUNET_SERVER_Client *client);
void
Modified: gnunet/src/ats/gnunet-service-ats_scheduling.c
===================================================================
--- gnunet/src/ats/gnunet-service-ats_scheduling.c 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_scheduling.c 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,6 +22,7 @@
* @file ats/gnunet-service-ats_scheduling.c
* @brief ats service, interaction with 'scheduling' API
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet-service-ats_addresses.h"
@@ -29,12 +30,29 @@
#include "ats.h"
+/**
+ * We keep clients that are interested in scheduling in a linked list.
+ * This list typically has only one entry (for the
+ * gnunet-service-transport process); however, it is possible that
+ * there is more than one (at least briefly) because after a crash a
+ * new one may connect before we've been notified to clean up the old
+ * process.
+ */
struct SchedulingClient
{
+ /**
+ * Next in doubly-linked list.
+ */
struct SchedulingClient * next;
+ /**
+ * Previous in doubly-linked list.
+ */
struct SchedulingClient * prev;
+ /**
+ * Actual handle to the client.
+ */
struct GNUNET_SERVER_Client *client;
};
@@ -50,7 +68,19 @@
*/
static struct SchedulingClient *sc_tail;
+/**
+ * Context for sending messages to clients.
+ */
+static struct GNUNET_SERVER_NotificationContext *nc;
+
+/**
+ * Find the scheduling client associated with the given
+ * handle.
+ *
+ * @param client server handle
+ * @return internal handle
+ */
static struct SchedulingClient *
find_client (struct GNUNET_SERVER_Client *client)
{
@@ -63,21 +93,33 @@
}
+/**
+ * Register a new scheduling client.
+ *
+ * @param client handle of the new client
+ */
void
-GAS_add_scheduling_client (struct GNUNET_SERVER_Client *client)
+GAS_scheduling_add_client (struct GNUNET_SERVER_Client *client)
{
struct SchedulingClient *sc;
GNUNET_break (NULL == find_client (client));
sc = GNUNET_malloc (sizeof (struct SchedulingClient));
sc->client = client;
+ GNUNET_SERVER_notification_context_add (nc, client);
GNUNET_SERVER_client_keep (client);
GNUNET_CONTAINER_DLL_insert(sc_head, sc_tail, sc);
}
+/**
+ * Unregister a client (which may have been a scheduling client,
+ * but this is not assured).
+ *
+ * @param client handle of the (now dead) client
+ */
void
-GAS_remove_scheduling_client (struct GNUNET_SERVER_Client *client)
+GAS_scheduling_remove_client (struct GNUNET_SERVER_Client *client)
{
struct SchedulingClient * sc;
@@ -90,17 +132,100 @@
}
+/**
+ * Transmit the given address suggestion and bandwidth update to all scheduling
+ * clients.
+ *
+ * @param peer peer for which this is an address suggestion
+ * @param plugin_name 0-termintated string specifying the transport plugin
+ * @param plugin_addr binary address for the plugin to use
+ * @param plugin_addr_len number of bytes in plugin_addr
+ * @param session_client which client gave us this session_id?
+ * @param session_id session ID to use for the given client (other clients
will see 0)
+ * @param atsi performance data for the address
+ * @param atsi_count number of performance records in 'ats'
+ * @param bandwidth_out assigned outbound bandwidth
+ * @param bandwidth_in assigned inbound bandwidth
+ */
void
+GAS_scheduling_transmit_address_update (const struct GNUNET_PeerIdentity *peer,
+ const char *plugin_name,
+ const void *plugin_addr, size_t
plugin_addr_len,
+ struct GNUNET_SERVER_Client
*session_client,
+ uint32_t session_id,
+ const struct
GNUNET_TRANSPORT_ATS_Information *atsi,
+ uint32_t atsi_count,
+ struct GNUNET_BANDWIDTH_Value32NBO
bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO
bandwidth_in)
+{
+ struct SchedulingClient *sc;
+ struct AddressSuggestionMessage *msg;
+ size_t plugin_name_length = strlen (plugin_name) + 1;
+ size_t msize = sizeof (struct AddressSuggestionMessage) + atsi_count *
sizeof (struct GNUNET_TRANSPORT_ATS_Information)
+ + plugin_addr_len + plugin_name_length;
+ char buf[msize];
+ struct GNUNET_TRANSPORT_ATS_Information *atsp;
+ char *addrp;
+
+ GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
+ GNUNET_assert (atsi_count < GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct
GNUNET_TRANSPORT_ATS_Information));
+ msg = (struct AddressSuggestionMessage*) buf;
+ msg->header.size = htons (msize);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_ADDRESS_SUGGESTION);
+ msg->ats_count = htonl (atsi_count);
+ msg->peer = *peer;
+ msg->address_length = htons (plugin_addr_len);
+ msg->plugin_name_length = htons (plugin_name_length);
+ /* session ID is set only if 'client' is the same... */
+ msg->bandwidth_out = bandwidth_out;
+ msg->bandwidth_in = bandwidth_in;
+ atsp = (struct GNUNET_TRANSPORT_ATS_Information* ) &msg[1];
+ memcpy (atsp, atsi, sizeof (struct GNUNET_TRANSPORT_ATS_Information) *
atsi_count);
+ addrp = (char*) &atsp[atsi_count];
+ memcpy (addrp, plugin_addr, plugin_addr_len);
+ strcpy (&addrp[plugin_addr_len], plugin_name);
+ for (sc = sc_head; sc != NULL; sc = sc->next)
+ {
+ if (sc->client == session_client)
+ msg->session_id = htonl (session_id);
+ else
+ msg->session_id = htonl (0);
+ GNUNET_SERVER_notification_context_unicast (nc,
+ sc->client,
+ &msg->header,
+ GNUNET_YES);
+ }
+}
+
+
+/**
+ * Handle 'request address' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
+void
GAS_handle_request_address (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
+ const struct GNUNET_MessageHeader *message)
{
- // struct RequestAddressMessage * msg = (struct RequestAddressMessage *)
message;
+ const struct RequestAddressMessage * msg = (const struct
RequestAddressMessage *) message;
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n",
"REQUEST_ADDRESS");
-
+ GNUNET_break (0 == ntohl (msg->reserved));
+ GAS_addresses_request_address (&msg->peer);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
+/**
+ * Handle 'address update' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
void
GAS_handle_address_update (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
@@ -143,11 +268,11 @@
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- GAS_address_update (client,
- &m->peer,
+ GAS_address_update (&m->peer,
plugin_name,
address,
address_length,
+ client,
ntohl (m->session_id),
atsi,
ats_count);
@@ -155,12 +280,81 @@
}
+/**
+ * Handle 'address destroyed' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
void
GAS_handle_address_destroyed (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
+ const struct GNUNET_MessageHeader *message)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n",
"ADDRESS_DESTROYED");
+ const struct AddressDestroyedMessage * m;
+ const char *address;
+ const char *plugin_name;
+ uint16_t address_length;
+ uint16_t plugin_name_length;
+ uint16_t size;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received `%s' message\n",
+ "ADDRESS_DESTROYED");
+ size = ntohs (message->size);
+ if (size <= sizeof (struct AddressDestroyedMessage))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ m = (const struct AddressDestroyedMessage*) message;
+ GNUNET_break (0 == ntohl (m->reserved));
+ address_length = ntohs (m->address_length);
+ plugin_name_length = ntohs (m->plugin_name_length);
+ address = (const char*) &m[1];
+ plugin_name = &address[address_length];
+ if ( (address_length +
+ plugin_name_length +
+ sizeof (struct AddressSuggestionMessage) != ntohs (message->size)) ||
+ (plugin_name[plugin_name_length - 1] != '\0') )
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ GAS_address_destroyed (&m->peer,
+ plugin_name,
+ address,
+ address_length,
+ client,
+ ntohl (m->session_id));
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
+
+/**
+ * Initialize scheduling subsystem.
+ *
+ * @param server handle to our server
+ */
+void
+GAS_scheduling_init (struct GNUNET_SERVER_Handle *server)
+{
+ nc = GNUNET_SERVER_notification_context_create (server, 128);
+}
+
+
+/**
+ * Shutdown scheduling subsystem.
+ */
+void
+GAS_scheduling_done ()
+{
+ GNUNET_SERVER_notification_context_destroy (nc);
+ nc = NULL;
+}
+
+
/* end of gnunet-service-ats_scheduling.c */
Modified: gnunet/src/ats/gnunet-service-ats_scheduling.h
===================================================================
--- gnunet/src/ats/gnunet-service-ats_scheduling.h 2011-10-14 07:23:44 UTC
(rev 17474)
+++ gnunet/src/ats/gnunet-service-ats_scheduling.h 2011-10-14 08:03:02 UTC
(rev 17475)
@@ -22,34 +22,112 @@
* @file ats/gnunet-service-ats_scheduling.h
* @brief ats service, interaction with 'scheduling' API
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_ATS_SCHEDULING_H
#define GNUNET_SERVICE_ATS_SCHEDULING_H
#include "gnunet_util_lib.h"
+
+/**
+ * Register a new scheduling client.
+ *
+ * @param client handle of the new client
+ */
void
-GAS_add_scheduling_client (struct GNUNET_SERVER_Client *client);
+GAS_scheduling_add_client (struct GNUNET_SERVER_Client *client);
+/**
+ * Unregister a client (which may have been a scheduling client,
+ * but this is not assured).
+ *
+ * @param client handle of the (now dead) client
+ */
void
-GAS_remove_scheduling_client (struct GNUNET_SERVER_Client *client);
+GAS_scheduling_remove_client (struct GNUNET_SERVER_Client *client);
+/**
+ * Transmit the given address suggestion and bandwidth update to all scheduling
+ * clients.
+ *
+ * @param peer peer for which this is an address suggestion
+ * @param plugin_name 0-termintated string specifying the transport plugin
+ * @param plugin_addr binary address for the plugin to use
+ * @param plugin_addr_len number of bytes in plugin_addr
+ * @param session_client which client gave us this session_id?
+ * @param session_id session ID to use for the given client (other clients
will see 0)
+ * @param atsi performance data for the address
+ * @param atsi_count number of performance records in 'ats'
+ * @param bandwidth_out assigned outbound bandwidth
+ * @param bandwidth_in assigned inbound bandwidth
+ */
void
+GAS_scheduling_transmit_address_update (const struct GNUNET_PeerIdentity *peer,
+ const char *plugin_name,
+ const void *plugin_addr, size_t
plugin_addr_len,
+ struct GNUNET_SERVER_Client
*session_client,
+ uint32_t session_id,
+ const struct
GNUNET_TRANSPORT_ATS_Information *atsi,
+ uint32_t atsi_count,
+ struct GNUNET_BANDWIDTH_Value32NBO
bandwidth_out,
+ struct GNUNET_BANDWIDTH_Value32NBO
bandwidth_in);
+
+
+/**
+ * Handle 'request address' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
+void
GAS_handle_request_address (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message);
+
+/**
+ * Handle 'address update' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
void
GAS_handle_address_update (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message);
+/**
+ * Handle 'address destroyed' messages from clients.
+ *
+ * @param cls unused, NULL
+ * @param client client that sent the request
+ * @param message the request message
+ */
void
GAS_handle_address_destroyed (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message);
+/**
+ * Initialize scheduling subsystem.
+ *
+ * @param server handle to our server
+ */
+void
+GAS_scheduling_init (struct GNUNET_SERVER_Handle *server);
+
+
+/**
+ * Shutdown scheduling subsystem.
+ */
+void
+GAS_scheduling_done (void);
+
+
#endif
/* end of gnunet-service-ats_scheduling.h */
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