* c 10) obey network specific quota
*/
+ /* Row for c4) minimum connection */
int min = mlp->n_min;
+ /* Number of minimum connections is min(|Peers|, n_min) */
if (mlp->n_min > mlp->c_p)
min = mlp->c_p;
mlp->ci++;
struct ATS_Peer * peer = mlp->peer_head;
+ /* For all peers */
while (peer != NULL)
{
struct ATS_Address *addr = peer->head;
/* Set -r */
ia[mlp->ci] = peer->r_c9;
ja[mlp->ci] = mlp->c_r;
- ar[mlp->ci] = -1;
+ ar[mlp->ci] = -peer->f;
mlp->ci++;
#endif
-
+ /* For all addresses of this peer */
while (addr != NULL)
{
mlpi = (struct MLP_information *) addr->mlp_information;
/* coefficient for c 2) */
-
ia[mlp->ci] = peer->r_c2;
ja[mlp->ci] = mlpi->c_n;
ar[mlp->ci] = 1;
}
/* c 7) For all quality metrics */
-
-
for (c = 0; c < mlp->m_q; c++)
{
struct ATS_Peer *tp;
glp_set_row_name (mlp->prob, mlp->r_q[c], name);
GNUNET_free (name);
/* Set row bound == 0 */
- glp_set_row_bnds (mlp->prob, mlp->r_q[c], GLP_LO, 0.0, 0.0);
+ glp_set_row_bnds (mlp->prob, mlp->r_q[c], GLP_FX, 0.0, 0.0);
ia[mlp->ci] = mlp->r_q[c];
ja[mlp->ci] = mlp->c_q[c];
ia[mlp->ci] = mlp->r_q[c];
ja[mlp->ci] = mlpi->c_b;
- ar[mlp->ci] = tp->f * value;
+ ar[mlp->ci] = tp->f_q[c] * value;
mlp->ci++;
}
}
/* Adding invariant columns */
/* Diversity d column */
-
col = glp_add_cols (mlp->prob, 1);
mlp->c_d = col;
/* Column name */
glp_set_col_bnds (mlp->prob, col, GLP_LO, 0.0, 0.0);
/* Utilization u column */
-
col = glp_add_cols (mlp->prob, 1);
mlp->c_u = col;
/* Column name */
return res;
}
+
/**
* Solves the LP problem
*
* @param mlp the MLP Handle
+ * @param s_ctx context to return results
* @return GNUNET_OK if could be solved, GNUNET_SYSERR on failure
*/
static int
-mlp_solve_lp_problem (struct GAS_MLP_Handle *mlp)
+mlp_solve_lp_problem (struct GAS_MLP_Handle *mlp, struct GAS_MLP_SolutionContext *s_ctx)
{
int res;
struct GNUNET_TIME_Relative duration;
duration = GNUNET_TIME_absolute_get_difference (start, end);
mlp->lp_solved++;
mlp->lp_total_duration =+ duration.rel_value;
+ s_ctx->lp_duration = duration;
GNUNET_STATISTICS_update (mlp->stats,"# LP problem solved", 1, GNUNET_NO);
GNUNET_STATISTICS_set (mlp->stats,"# LP execution time (ms)", duration.rel_value, GNUNET_NO);
GNUNET_STATISTICS_set (mlp->stats,"# LP execution time average (ms)",
mlp->lp_total_duration / mlp->lp_solved, GNUNET_NO);
-
/* Analyze problem status */
res = glp_get_status (mlp->prob);
switch (res) {
* Solves the MLP problem
*
* @param mlp the MLP Handle
+ * @param s_ctx context to return results
* @return GNUNET_OK if could be solved, GNUNET_SYSERR on failure
*/
int
-mlp_solve_mlp_problem (struct GAS_MLP_Handle *mlp)
+mlp_solve_mlp_problem (struct GAS_MLP_Handle *mlp, struct GAS_MLP_SolutionContext *s_ctx)
{
int res;
struct GNUNET_TIME_Relative duration;
duration = GNUNET_TIME_absolute_get_difference (start, end);
mlp->mlp_solved++;
mlp->mlp_total_duration =+ duration.rel_value;
+ s_ctx->mlp_duration = duration;
GNUNET_STATISTICS_update (mlp->stats,"# MLP problem solved", 1, GNUNET_NO);
GNUNET_STATISTICS_set (mlp->stats,"# MLP execution time (ms)", duration.rel_value, GNUNET_NO);
return GNUNET_OK;
}
-int GAS_mlp_solve_problem (struct GAS_MLP_Handle *mlp);
+int GAS_mlp_solve_problem (struct GAS_MLP_Handle *mlp, struct GAS_MLP_SolutionContext *ctx);
+
static void
mlp_scheduler (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GAS_MLP_Handle *mlp = cls;
+ struct GAS_MLP_SolutionContext ctx;
mlp->mlp_task = GNUNET_SCHEDULER_NO_TASK;
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
-
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Scheduled problem solving\n");
if (mlp->addr_in_problem != 0)
- GAS_mlp_solve_problem(mlp);
+ GAS_mlp_solve_problem(mlp, &ctx);
}
* Solves the MLP problem
*
* @param mlp the MLP Handle
+ * @param ctx solution context
* @return GNUNET_OK if could be solved, GNUNET_SYSERR on failure
*/
int
-GAS_mlp_solve_problem (struct GAS_MLP_Handle *mlp)
+GAS_mlp_solve_problem (struct GAS_MLP_Handle *mlp, struct GAS_MLP_SolutionContext *ctx)
{
int res;
- mlp->last_execution = GNUNET_TIME_absolute_get ();
+ /* Check if solving is already running */
+ if (GNUNET_YES == mlp->semaphore)
+ {
+ if (mlp->mlp_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(mlp->mlp_task);
+ mlp->mlp_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ mlp->mlp_task = GNUNET_SCHEDULER_add_delayed (mlp->exec_interval, &mlp_scheduler, mlp);
+ return GNUNET_SYSERR;
+ }
+ mlp->semaphore = GNUNET_YES;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Problem solving\n");
+ mlp->last_execution = GNUNET_TIME_absolute_get ();
+ ctx->lp_result = GNUNET_SYSERR;
+ ctx->mlp_result = GNUNET_SYSERR;
+ ctx->lp_duration = GNUNET_TIME_UNIT_FOREVER_REL;
+ ctx->mlp_duration = GNUNET_TIME_UNIT_FOREVER_REL;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Solve LP problem\n");
#if WRITE_MLP
char * name;
static int i;
GNUNET_free (name);
# endif
- res = mlp_solve_lp_problem (mlp);
+ res = mlp_solve_lp_problem (mlp, ctx);
+ ctx->lp_result = res;
+ if (res != GNUNET_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "LP Problem solving failed\n");
+ mlp->semaphore = GNUNET_NO;
+ return GNUNET_SYSERR;
+ }
#if WRITE_MLP
GNUNET_asprintf(&name, "problem_%i_lp_solution", i);
GNUNET_free (name);
# endif
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Solve MLP problem\n");
+ res = mlp_solve_mlp_problem (mlp, ctx);
+ ctx->mlp_result = res;
if (res != GNUNET_OK)
{
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "LP Problem solving failed\n");
-
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "MLP Problem solving failed\n");
+ mlp->semaphore = GNUNET_NO;
return GNUNET_SYSERR;
}
-
- res = mlp_solve_mlp_problem (mlp);
-
#if WRITE_MLP
GNUNET_asprintf(&name, "problem_%i_mlp_solution", i);
glp_print_mip (mlp->prob, name);
GNUNET_free (name);
# endif
- if (res != GNUNET_OK)
- {
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MLP Problem solving failed\n");
-
- return GNUNET_SYSERR;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Problem solved\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Problem solved %s (LP duration %llu / MLP duration %llu)\n",
+ (GNUNET_OK == res) ? "successfully" : "failed", ctx->lp_duration.rel_value, ctx->mlp_duration.rel_value);
/* Process result */
struct ATS_Peer *p = NULL;
struct ATS_Address *a = NULL;
mlp->mlp_task = GNUNET_SCHEDULER_NO_TASK;
}
mlp->mlp_task = GNUNET_SCHEDULER_add_delayed (mlp->exec_interval, &mlp_scheduler, mlp);
+ mlp->semaphore = GNUNET_NO;
return res;
}
double D;
double R;
double U;
- long long unsigned int tmp;
+ unsigned long long tmp;
unsigned int b_min;
unsigned int n_min;
struct GNUNET_TIME_Relative i_exec;
char * quota_in_str;
/* Init GLPK environment */
- GNUNET_assert (glp_init_env() == 0);
+ int res = glp_init_env();
+ switch (res) {
+ case 0:
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "GLPK: `%s'\n",
+ "initialization successful");
+ break;
+ case 1:
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "GLPK: `%s'\n",
+ "environment is already initialized");
+ break;
+ case 2:
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not init GLPK: `%s'\n",
+ "initialization failed (insufficient memory)");
+ GNUNET_free(mlp);
+ return NULL;
+ break;
+ case 3:
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Could not init GLPK: `%s'\n",
+ "initialization failed (unsupported programming model)");
+ GNUNET_free(mlp);
+ return NULL;
+ break;
+ default:
+ break;
+ }
/* Create initial MLP problem */
mlp->prob = glp_create_prob();
/* Check if defined quota could make problem unsolvable */
if (((n_min * b_min) > quota_out) && (GNUNET_ATS_NET_UNSPECIFIED != quotas[c]))
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Inconsistent quota configuration value `%s': " \
- "outbound quota (%u Bps) too small for combination of minimum connections and minimum bandwidth per peer (%u * %u Bps = %u)\n", entry_out, quota_out, n_min, b_min, n_min * b_min);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Inconsistent quota configuration value `%s': "
+ "outbound quota (%u Bps) too small for combination of minimum connections and minimum bandwidth per peer (%u * %u Bps = %u)\n", entry_out, quota_out, n_min, b_min, n_min * b_min);
GAS_mlp_done(mlp);
mlp = NULL;
#endif
mlp->control_param_mlp.tm_lim = max_duration.rel_value;
- mlp->last_execution = GNUNET_TIME_absolute_get_forever();
+ mlp->last_execution = GNUNET_TIME_UNIT_FOREVER_ABS;
mlp->co_D = D;
mlp->co_R = R;
mlp->b_min = b_min;
mlp->n_min = n_min;
mlp->m_q = GNUNET_ATS_QualityPropertiesCount;
-
+ mlp->semaphore = GNUNET_NO;
return mlp;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating quality metrics for peer `%s'\n",
GNUNET_i2s (&address->peer));
+ GNUNET_assert (NULL != address);
+ GNUNET_assert (NULL != address->mlp_information);
+ GNUNET_assert (NULL != address->ats);
+
struct MLP_information *mlpi = address->mlp_information;
struct GNUNET_ATS_Information *ats = address->ats;
GNUNET_assert (mlpi != NULL);
int c;
-
for (c = 0; c < GNUNET_ATS_QualityPropertiesCount; c++)
{
int index = mlp_lookup_ats(address, mlp->q[c]);
c3 ++;
}
}
- if (c3 > 0)
+ if ((c3 > 0) && (avg > 0))
/* avg = 1 / ((q[0] + ... + q[l]) /c3) => c3 / avg*/
mlpi->q_averaged[c] = (double) c3 / avg;
else
c3 ++;
}
}
- if (c3 > 0)
+ if ((c3 > 0) && (avg > 0))
/* avg = 1 / ((q[0] + ... + q[l]) /c3) => c3 / avg*/
mlpi->q_averaged[c] = (double) c3 / avg;
else
{
int new;
struct MLP_information *mlpi;
+ struct GAS_MLP_SolutionContext ctx;
GNUNET_STATISTICS_update (mlp->stats, "# MLP address updates", 1, GNUNET_NO);
GNUNET_CONTAINER_DLL_insert (peer->head, peer->tail, address);
}
-
update_quality (mlp, address);
}
else
mlp->presolver_required = GNUNET_YES;
}
if (mlp->auto_solve == GNUNET_YES)
- GAS_mlp_solve_problem (mlp);
+ GAS_mlp_solve_problem (mlp, &ctx);
}
/**
GAS_mlp_address_delete (struct GAS_MLP_Handle *mlp, struct GNUNET_CONTAINER_MultiHashMap * addresses, struct ATS_Address *address)
{
GNUNET_STATISTICS_update (mlp->stats,"# LP address deletions", 1, GNUNET_NO);
+ struct GAS_MLP_SolutionContext ctx;
/* Free resources */
if (address->mlp_information != NULL)
/* Recalculate */
mlp->presolver_required = GNUNET_YES;
if (mlp->auto_solve == GNUNET_YES)
- GAS_mlp_solve_problem (mlp);
+ GAS_mlp_solve_problem (mlp, &ctx);
}
}
GAS_mlp_done (struct GAS_MLP_Handle *mlp)
{
struct ATS_Peer * peer;
- struct ATS_Peer * tmp;
+ struct ATS_Address *addr;
GNUNET_assert (mlp != NULL);
peer = mlp->peer_head;
while (peer != NULL)
{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up peer `%s'\n", GNUNET_i2s (&peer->id));
GNUNET_CONTAINER_DLL_remove(mlp->peer_head, mlp->peer_tail, peer);
- tmp = peer->next;
+ for (addr = peer->head; NULL != addr; addr = peer->head)
+ {
+ GNUNET_CONTAINER_DLL_remove(peer->head, peer->tail, addr);
+ GNUNET_free (addr->mlp_information);
+ addr->mlp_information = NULL;
+ }
GNUNET_free (peer);
- peer = tmp;
+ peer = mlp->peer_head;
}
mlp_delete_problem (mlp);
projects / oweals / gnunet.git / blobdiff