guix-env: some update.
[oweals/gnunet.git] / src / ats / gnunet-service-ats_scheduling.c
index d89b274a4d50eed2288f52f5b35bae2a5fd8812b..fd7eff8fbe81d3821e51fdcdbc9b3aa05e3c98aa 100644 (file)
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2011-2014 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2011-2016 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
@@ -14,8 +14,8 @@
 
      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.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
  * @author Christian Grothoff
  */
 #include "platform.h"
-#include "gnunet-service-ats.h"
 #include "gnunet-service-ats_addresses.h"
 #include "gnunet-service-ats_scheduling.h"
 #include "ats.h"
 
-
-/**
- * Context for sending messages to clients.
- */
-static struct GNUNET_SERVER_NotificationContext *nc;
-
 /**
  * Actual handle to the client.
  */
-static struct GNUNET_SERVER_Client *my_client;
-
-/**
- * Handle to address subsystem
- */
-static struct GAS_Addresses_Handle *address_handle;
+static struct GNUNET_SERVICE_Client *my_client;
 
 
 /**
@@ -54,16 +42,15 @@ static struct GAS_Addresses_Handle *address_handle;
  * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
  */
 int
-GAS_scheduling_add_client (struct GNUNET_SERVER_Client *client)
+GAS_scheduling_add_client (struct GNUNET_SERVICE_Client *client)
 {
-  if (my_client != NULL)
+  if (NULL != my_client)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "This ATS already has a scheduling client, refusing new scheduling client for now.\n");
     return GNUNET_SYSERR;
   }
   my_client = client;
-  GNUNET_SERVER_notification_context_add (nc, client);
   return GNUNET_OK;
 }
 
@@ -75,11 +62,11 @@ GAS_scheduling_add_client (struct GNUNET_SERVER_Client *client)
  * @param client handle of the (now dead) client
  */
 void
-GAS_scheduling_remove_client (struct GNUNET_SERVER_Client *client)
+GAS_scheduling_remove_client (struct GNUNET_SERVICE_Client *client)
 {
   if (my_client != client)
     return;
-  GAS_addresses_destroy_all (address_handle);
+  GAS_addresses_destroy_all ();
   my_client = NULL;
 }
 
@@ -89,312 +76,115 @@ GAS_scheduling_remove_client (struct GNUNET_SERVER_Client *client)
  * 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 @a plugin_addr
- * @param local_address_info the local address for the address
  * @param session_id session ID to use for the given client
- * @param atsi performance data for the address
- * @param atsi_count number of performance records in @a atsi
  * @param bandwidth_out assigned outbound bandwidth
  * @param bandwidth_in assigned inbound bandwidth
  */
 void
 GAS_scheduling_transmit_address_suggestion (const struct GNUNET_PeerIdentity *peer,
-                                            const char *plugin_name,
-                                            const void *plugin_addr,
-                                            size_t plugin_addr_len,
-                                            uint32_t local_address_info,
                                             uint32_t session_id,
-                                            const struct GNUNET_ATS_Information *atsi,
-                                            uint32_t atsi_count,
                                             struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
                                             struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
 {
+  struct GNUNET_MQ_Envelope *env;
   struct AddressSuggestionMessage *msg;
-  size_t plugin_name_length = strlen (plugin_name) + 1;
-  size_t msize =
-      sizeof (struct AddressSuggestionMessage) +
-      atsi_count * sizeof (struct GNUNET_ATS_Information) + plugin_addr_len +
-      plugin_name_length;
-  char buf[msize] GNUNET_ALIGN;
-  struct GNUNET_ATS_Information *atsp;
-  char *addrp;
 
-  if (my_client == NULL)
+  if (NULL == my_client)
     return;
-  GNUNET_STATISTICS_update (GSA_stats, "# address suggestions made", 1,
+  GNUNET_STATISTICS_update (GSA_stats,
+                            "# address suggestions made",
+                           1,
                             GNUNET_NO);
-  GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
-  GNUNET_assert (atsi_count <
-                 GNUNET_SERVER_MAX_MESSAGE_SIZE /
-                 sizeof (struct GNUNET_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);
+  env = GNUNET_MQ_msg (msg,
+                      GNUNET_MESSAGE_TYPE_ATS_ADDRESS_SUGGESTION);
   msg->peer = *peer;
-  msg->address_length = htons (plugin_addr_len);
-  msg->plugin_name_length = htons (plugin_name_length);
-  msg->address_local_info = htonl (local_address_info);
   msg->session_id = htonl (session_id);
   msg->bandwidth_out = bandwidth_out;
   msg->bandwidth_in = bandwidth_in;
-  atsp = (struct GNUNET_ATS_Information *) &msg[1];
-  memcpy (atsp, atsi, sizeof (struct GNUNET_ATS_Information) * atsi_count);
-  addrp = (char *) &atsp[atsi_count];
-  memcpy (addrp, plugin_addr, plugin_addr_len);
-  strcpy (&addrp[plugin_addr_len], plugin_name);
-
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "ATS sends quota for peer `%s': (in/out) %u/%u\n",
               GNUNET_i2s (peer),
               (unsigned int) ntohl (bandwidth_in.value__),
               (unsigned int) ntohl (bandwidth_out.value__));
-
-  GNUNET_SERVER_notification_context_unicast (nc, my_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 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 (address_handle, &msg->peer);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * 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_cancel (void *cls,
-                                   struct GNUNET_SERVER_Client *client,
-                                   const struct GNUNET_MessageHeader *message)
-{
-  const struct RequestAddressMessage *msg =
-      (const struct RequestAddressMessage *) message;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n",
-              "REQUEST_ADDRESS_CANCEL");
-  GNUNET_break (0 == ntohl (msg->reserved));
-
-  GAS_addresses_request_address_cancel (address_handle, &msg->peer);
-
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Handle 'reset backoff' messages from clients.
- *
- * @param cls unused, NULL
- * @param client client that sent the request
- * @param message the request message
- */
-void
-GAS_handle_reset_backoff (void *cls,
-                          struct GNUNET_SERVER_Client *client,
-                          const struct GNUNET_MessageHeader *message)
-{
-  const struct ResetBackoffMessage *msg =
-      (const struct ResetBackoffMessage *) message;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Received `%s' message\n",
-              "RESET_BACKOFF");
-  GNUNET_break (0 == ntohl (msg->reserved));
-  GAS_addresses_handle_backoff_reset (address_handle, &msg->peer);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
+  GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (my_client),
+                 env);
 }
 
 
 /**
  * Handle 'address add' messages from clients.
  *
- * @param cls unused, NULL
- * @param client client that sent the request
- * @param message the request message
+ * @param m the request message
  */
 void
-GAS_handle_address_add (void *cls,
-                        struct GNUNET_SERVER_Client *client,
-                        const struct GNUNET_MessageHeader *message)
+GAS_handle_address_add (const struct AddressAddMessage *m)
 {
-  const struct AddressAddMessage *m;
-  const struct GNUNET_ATS_Information *atsi;
   const char *address;
   const char *plugin_name;
   uint16_t address_length;
   uint16_t plugin_name_length;
-  uint32_t ats_count;
-  uint16_t size;
+  struct GNUNET_ATS_Properties prop;
 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Received `%s' message\n",
               "ADDRESS_ADD");
-  size = ntohs (message->size);
-  if (size < sizeof (struct AddressAddMessage))
-  {
-    GNUNET_break (0);
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    return;
-  }
-  m = (const struct AddressAddMessage *) message;
-  ats_count = ntohl (m->ats_count);
   address_length = ntohs (m->address_length);
   plugin_name_length = ntohs (m->plugin_name_length);
-  atsi = (const struct GNUNET_ATS_Information *) &m[1];
-  address = (const char *) &atsi[ats_count];
+  address = (const char *) &m[1];
   if (plugin_name_length != 0)
     plugin_name = &address[address_length];
   else
     plugin_name = "";
-
-  if ((address_length + plugin_name_length +
-       ats_count * sizeof (struct GNUNET_ATS_Information) +
-       sizeof (struct AddressAddMessage) != ntohs (message->size)) ||
-      (ats_count >
-       GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct GNUNET_ATS_Information)) ||
-       ((plugin_name_length > 0) && (plugin_name[plugin_name_length - 1] != '\0')))
-  {
-    GNUNET_break (0);
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    return;
-  }
   GNUNET_STATISTICS_update (GSA_stats,
-                            "# addresses created", 1,
+                            "# addresses created",
+                            1,
                             GNUNET_NO);
-  GAS_addresses_add (address_handle,
-                     &m->peer,
+  GNUNET_ATS_properties_ntoh (&prop,
+                              &m->properties);
+  GNUNET_break (GNUNET_ATS_NET_UNSPECIFIED != prop.scope);
+  GAS_addresses_add (&m->peer,
                      plugin_name,
                      address,
                      address_length,
-                     ntohl(m->address_local_info),
+                     ntohl (m->address_local_info),
                      ntohl (m->session_id),
-                     atsi, ats_count);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
+                     &prop);
 }
 
 
 /**
  * Handle 'address update' messages from clients.
  *
- * @param cls unused, NULL
- * @param client client that sent the request
- * @param message the request message
+ * @param m the request message
  */
 void
-GAS_handle_address_update (void *cls,
-                           struct GNUNET_SERVER_Client *client,
-                           const struct GNUNET_MessageHeader *message)
+GAS_handle_address_update (const struct AddressUpdateMessage *m)
 {
-  const struct AddressUpdateMessage *m;
-  const struct GNUNET_ATS_Information *atsi;
-  uint32_t ats_count;
-  uint16_t size;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Received `%s' message\n",
-              "ADDRESS_UPDATE");
-  size = ntohs (message->size);
-  if (size < sizeof (struct AddressUpdateMessage))
-  {
-    GNUNET_break (0);
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    return;
-  }
-  m = (const struct AddressUpdateMessage *) message;
-  ats_count = ntohl (m->ats_count);
-  atsi = (const struct GNUNET_ATS_Information *) &m[1];
+  struct GNUNET_ATS_Properties prop;
 
-  if ((ats_count * sizeof (struct GNUNET_ATS_Information) +
-       sizeof (struct AddressUpdateMessage) != ntohs (message->size)) ||
-      (ats_count >
-       GNUNET_SERVER_MAX_MESSAGE_SIZE / sizeof (struct GNUNET_ATS_Information)))
-  {
-    GNUNET_break (0);
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    return;
-  }
   GNUNET_STATISTICS_update (GSA_stats,
                             "# address updates received",
                             1,
                             GNUNET_NO);
-  GAS_addresses_update (address_handle,
-                        &m->peer,
+  GNUNET_ATS_properties_ntoh (&prop,
+                              &m->properties);
+  GAS_addresses_update (&m->peer,
                         ntohl (m->session_id),
-                        atsi, ats_count);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Handle 'address in use' messages from clients.
- *
- * @param cls unused, NULL
- * @param client client that sent the request
- * @param message the request message
- */
-void
-GAS_handle_address_in_use (void *cls,
-                           struct GNUNET_SERVER_Client *client,
-                           const struct GNUNET_MessageHeader *message)
-{
-  const struct AddressUseMessage *m;
-  int res;
-
-  m = (const struct AddressUseMessage *) message;
-  res = GAS_addresses_in_use (address_handle,
-                              &m->peer,
-                              ntohl (m->session_id),
-                              ntohl (m->in_use));
-  if (GNUNET_OK != res)
-  {
-    GNUNET_break (0);
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    return;
-  }
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
+                        &prop);
 }
 
 
 /**
  * Handle 'address destroyed' messages from clients.
  *
- * @param cls unused, NULL
- * @param client client that sent the request
- * @param message the request message
+ * @param m the request message
  */
 void
-GAS_handle_address_destroyed (void *cls,
-                              struct GNUNET_SERVER_Client *client,
-                              const struct GNUNET_MessageHeader *message)
+GAS_handle_address_destroyed (const struct AddressDestroyedMessage *m)
 {
-  const struct AddressDestroyedMessage *m;
-  struct SessionReleaseMessage srm;
+  struct GNUNET_MQ_Envelope *env;
+  struct GNUNET_ATS_SessionReleaseMessage *srm;
 
-  m = (const struct AddressDestroyedMessage *) message;
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Received `%s' message\n",
               "ADDRESS_DESTROYED");
@@ -402,49 +192,14 @@ GAS_handle_address_destroyed (void *cls,
                             "# addresses destroyed",
                             1,
                             GNUNET_NO);
-  GAS_addresses_destroy (address_handle,
-                         &m->peer,
+  GAS_addresses_destroy (&m->peer,
                          ntohl (m->session_id));
-  srm.header.type = ntohs (GNUNET_MESSAGE_TYPE_ATS_SESSION_RELEASE);
-  srm.header.size = ntohs (sizeof (struct SessionReleaseMessage));
-  srm.session_id = m->session_id;
-  srm.peer = m->peer;
-  GNUNET_SERVER_notification_context_unicast (nc,
-                                              client,
-                                              &srm.header,
-                                              GNUNET_NO);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Initialize scheduling subsystem.
- *
- * @param server handle to our server
- * @param ah the address handle to use
- */
-void
-GAS_scheduling_init (struct GNUNET_SERVER_Handle *server,
-                     struct GAS_Addresses_Handle *ah)
-{
-  GNUNET_assert (NULL != ah);
-  address_handle = ah;
-  nc = GNUNET_SERVER_notification_context_create (server, 128);
-}
-
-
-/**
- * Shutdown scheduling subsystem.
- */
-void
-GAS_scheduling_done ()
-{
-  if (NULL != my_client)
-  {
-    my_client = NULL;
-  }
-  GNUNET_SERVER_notification_context_destroy (nc);
-  nc = NULL;
+  env = GNUNET_MQ_msg (srm,
+                      GNUNET_MESSAGE_TYPE_ATS_SESSION_RELEASE);
+  srm->session_id = m->session_id;
+  srm->peer = m->peer;
+  GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (my_client),
+                 env);
 }