+tmgr_trace_t tmgr_trace_new_from_generator(const char *id,
+ probabilist_event_generator_t generator1,
+ probabilist_event_generator_t generator2,
+ int is_state_trace)
+{
+ tmgr_trace_t trace = NULL;
+
+ trace = xbt_new0(s_tmgr_trace_t, 1);
+ trace->type = e_trace_probabilist;
+
+ trace->s_probabilist.event_generator[0] = generator1;
+
+ //FIXME : may also be a parameter
+ trace->s_probabilist.next_event = 0;
+ trace->s_probabilist.is_state_trace = is_state_trace;
+
+ if(generator2 != NULL) {
+ trace->s_probabilist.event_generator[1] = generator2;
+ } else if(is_state_trace) {
+ trace->s_probabilist.event_generator[1] = generator1;
+ } else {
+ THROW_IMPOSSIBLE; //That case should have been checked before, anyway...
+ }
+
+ return trace;
+}
+
+probabilist_event_generator_t tmgr_event_generator_new_uniform(const char* id,
+ double min,
+ double max)
+{
+ probabilist_event_generator_t event_generator = NULL;
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
+ event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
+ event_generator->type = e_generator_uniform;
+ event_generator->s_uniform_parameters.min = min;
+ event_generator->s_uniform_parameters.max = max;
+ event_generator->rng_stream = rng_stream;
+
+ tmgr_event_generator_next_value(event_generator);
+
+ return event_generator;
+}
+
+probabilist_event_generator_t tmgr_event_generator_new_exponential(const char* id,
+ double rate)
+{
+ probabilist_event_generator_t event_generator = NULL;
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
+ event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
+ event_generator->type = e_generator_exponential;
+ event_generator->s_exponential_parameters.rate = rate;
+ event_generator->rng_stream = rng_stream;
+
+ tmgr_event_generator_next_value(event_generator);
+
+ return event_generator;
+}
+
+probabilist_event_generator_t tmgr_event_generator_new_weibull(const char* id,
+ double scale,
+ double shape)
+{
+ probabilist_event_generator_t event_generator = NULL;
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
+ event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
+ event_generator->type = e_generator_weibull;
+ event_generator->s_weibull_parameters.scale = scale;
+ event_generator->s_weibull_parameters.shape = shape;
+ event_generator->rng_stream = rng_stream;
+
+ tmgr_event_generator_next_value(event_generator);
+
+ return event_generator;
+}
+
+double tmgr_event_generator_next_value(probabilist_event_generator_t generator)
+{
+
+ switch(generator->type) {
+ case e_generator_uniform:
+ generator->next_value = (RngStream_RandU01(generator->rng_stream)
+ * (generator->s_uniform_parameters.max - generator->s_uniform_parameters.min))
+ + generator->s_uniform_parameters.min;
+ break;
+ case e_generator_exponential:
+ generator->next_value = -log(RngStream_RandU01(generator->rng_stream))
+ / generator->s_exponential_parameters.rate;
+ break;
+ case e_generator_weibull:
+ generator->next_value = generator->s_weibull_parameters.scale
+ * pow( -log(RngStream_RandU01(generator->rng_stream)),
+ 1.0 / generator->s_weibull_parameters.shape );
+ }
+
+ return generator->next_value;
+}
+