X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Fats%2Fgnunet-service-ats_addresses_mlp.h;h=6f7ee73d5b351d1c74040981e61ccb1ef84202ec;hb=f181f6eaf8cdb1fdb47dc98cf171ad1be842b441;hp=3351ca54154b548d0124b3443214e855e6f3c1a2;hpb=82892f3f69a9d5ba51dc7acc17b4680292b85f5a;p=oweals%2Fgnunet.git

diff --git a/src/ats/gnunet-service-ats_addresses_mlp.h b/src/ats/gnunet-service-ats_addresses_mlp.h
index 3351ca541..6f7ee73d5 100644
--- a/src/ats/gnunet-service-ats_addresses_mlp.h
+++ b/src/ats/gnunet-service-ats_addresses_mlp.h
@@ -25,6 +25,8 @@
  * @author Christian Grothoff
  */
 #include "platform.h"
+#include "gnunet_statistics_service.h"
+#include "gnunet-service-ats_addresses.h"
 #if HAVE_LIBGLPK
 #include "glpk.h"
 #endif
@@ -32,8 +34,22 @@
 #ifndef GNUNET_SERVICE_ATS_ADDRESSES_MLP_H
 #define GNUNET_SERVICE_ATS_ADDRESSES_MLP_H
 
+#define VERBOSE GNUNET_EXTRA_LOGGING
+#define DEBUG_MLP GNUNET_EXTRA_LOGGING
+
+#define MLP_MAX_EXEC_DURATION   GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3)
+#define MLP_MAX_ITERATIONS      INT_MAX
+
+/**
+ * MLP Handle
+ */
 struct GAS_MLP_Handle
 {
+  /**
+   * Statistics handle
+   */
+  struct GNUNET_STATISTICS_Handle *stats;
+
   /**
    * GLPK (MLP) problem object
    */
@@ -43,13 +59,120 @@ struct GAS_MLP_Handle
   void *prob;
 #endif
 
+  /**
+   * GLPK LP control parameter
+   */
+  glp_smcp control_param_lp;
+
+  /**
+   * GLPK LP control parameter
+   */
+  glp_iocp control_param_mlp;
+
+  /**
+   * Maximum execution time per problem solving
+   */
+  struct GNUNET_TIME_Relative max_exec_duration;
+
+  /**
+   * Maximum number of LP iterations per problem solving
+   */
+  unsigned int max_iterations;
+
+  /* state information */
+
+  /**
+   * Do we need to use the LP presolver?
+   *
+   * If the problem addresses were added or removed and the last basis was we
+   * need to use the presolver.
+   * presolver_required == GNUNET_YES
+   *
+   * If values were modified, we can reuse a valid basis
+   * presolver_required == GNUNET_NO
+   */
+  int presolver_required;
+
+  /* statistics */
+
+  /**
+   * Time of last execution
+   */
+  struct GNUNET_TIME_Absolute last_execution;
+
+
+  /**
+   * How often was the LP problem solved
+   */
+  unsigned int lp_solved;
+
+  /**
+   * total duration of all lp solver executions
+   */
+  uint64_t lp_total_duration;
+
+  /**
+   * How often was the MLP problem solved
+   */
+  unsigned int mlp_solved;
+
+  /**
+   * total duration of all mlp solver executions
+   */
+  uint64_t mlp_total_duration;
+};
+
+
+/**
+ * Address specific MLP information
+ */
+struct MLP_information
+{
+
 };
 
+
 /**
  * Init the MLP problem solving component
+ *
+ * @param stats the GNUNET_STATISTICS handle
+ * @param max_duration maximum numbers of iterations for the LP/MLP Solver
+ * @param max_iterations maximum time limit for the LP/MLP Solver
+ * @return GNUNET_OK on success, GNUNET_SYSERR on fail
+ */
+int
+GAS_mlp_init (const struct GNUNET_STATISTICS_Handle *stats,
+              struct GNUNET_TIME_Relative max_duration,
+              unsigned int max_iterations);
+
+/**
+ * Updates a single address in the MLP problem
+ *
+ * If the address did not exist before in the problem:
+ * The MLP problem has to be recreated and the problem has to be resolved
+ *
+ * Otherwise the addresses' values can be updated and the existing base can
+ * be reused
  */
 void
-GAS_mlp_init ();
+GAS_mlp_address_update (struct GNUNET_CONTAINER_MultiHashMap * addresses, struct ATS_Address *address);
+
+
+/**
+ * Deletes a single address in the MLP problem
+ *
+ * The MLP problem has to be recreated and the problem has to be resolved
+ */
+void
+GAS_mlp_address_delete (struct GNUNET_CONTAINER_MultiHashMap * addresses, struct ATS_Address *address);
+
+
+/**
+ * Deletes a single address in the MLP problem
+ */
+void
+GAS_mlp_address_change_preference (struct GNUNET_CONTAINER_MultiHashMap * addresses, struct ATS_Address *address);
+
 
 /**
  * Shutdown the MLP problem solving component