1 /* Copyright (c) 2004-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
16 #include <boost/function.hpp>
17 #include <boost/intrusive/list.hpp>
18 #include "surf/trace_mgr.h"
20 #include "surf/surf_routing.h"
21 #include "simgrid/platf_interface.h"
22 #include "surf/surf.h"
23 #include "src/surf/surf_private.h"
24 #include "src/internal_config.h"
27 #include <sigc++/sigc++.h>
30 // Wraps sigc++ signals with the interface of boost::signals2:
31 template<class T> class signal;
32 template<class R, class... P>
33 class signal<R(P...)> {
35 sigc::signal<R, P...> sig_;
37 template<class T> XBT_ALWAYS_INLINE
38 void connect(T&& slot)
40 sig_.connect(std::forward<T>(slot));
42 template<class Res, class... Args> XBT_ALWAYS_INLINE
43 void connect(Res(*slot)(Args...))
45 sig_.connect(sigc::ptr_fun(slot));
47 template<class... Args>
48 R operator()(Args&&... args) const
50 return sig_.emit(std::forward<Args>(args)...);
56 #include <boost/signals2.hpp>
60 using signal = ::boost::signals2::signal<T>;
65 extern XBT_PRIVATE tmgr_history_t history;
66 #define NO_MAX_DURATION -1.0
72 /* user-visible parameters */
73 extern XBT_PRIVATE double sg_tcp_gamma;
74 extern XBT_PRIVATE double sg_sender_gap;
75 extern XBT_PRIVATE double sg_latency_factor;
76 extern XBT_PRIVATE double sg_bandwidth_factor;
77 extern XBT_PRIVATE double sg_weight_S_parameter;
78 extern XBT_PRIVATE int sg_network_crosstraffic;
79 extern XBT_PRIVATE xbt_dynar_t surf_path;
82 XBT_PUBLIC(double) surf_get_clock(void);
85 extern XBT_PRIVATE double sg_sender_gap;
90 extern XBT_PRIVATE simgrid::surf::signal<void(void)> surfExitCallbacks;
95 int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
101 enum heap_action_type{
111 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
112 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
113 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
114 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
115 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
116 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
117 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
123 XBT_PRIVATE void surf_action_lmm_update_index_heap(void *action, int i);
125 XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
130 /** @ingroup SURF_interface
131 * @brief SURF action interface class
132 * @details An action is an event generated by a resource (e.g.: a communication for the network)
134 XBT_PUBLIC_CLASS Action {
136 boost::intrusive::list_member_hook<> action_hook;
137 boost::intrusive::list_member_hook<> action_lmm_hook;
138 typedef boost::intrusive::member_hook<
139 Action, boost::intrusive::list_member_hook<>, &Action::action_hook> ActionOptions;
140 typedef boost::intrusive::list<Action, ActionOptions> ActionList;
143 * @brief Common initializations for the constructors
145 void initialize(simgrid::surf::Model *model, double cost, bool failed,
146 lmm_variable_t var = NULL);
150 * @brief Action constructor
152 * @param model The Model associated to this Action
153 * @param cost The cost of the Action
154 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
156 Action(simgrid::surf::Model *model, double cost, bool failed);
159 * @brief Action constructor
161 * @param model The Model associated to this Action
162 * @param cost The cost of the Action
163 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
164 * @param var The lmm variable associated to this Action if it is part of a LMM component
166 Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var);
168 /** @brief Destructor */
171 /** @brief Mark that the action is now finished */
174 /** @brief Get the [state](\ref e_surf_action_state_t) of the current Action */
175 e_surf_action_state_t getState(); /**< get the state*/
176 /** @brief Set the [state](\ref e_surf_action_state_t) of the current Action */
177 virtual void setState(e_surf_action_state_t state);
179 /** @brief Get the bound of the current Action */
181 /** @brief Set the bound of the current Action */
182 void setBound(double bound);
184 /** @brief Get the start time of the current action */
185 double getStartTime();
186 /** @brief Get the finish time of the current action */
187 double getFinishTime();
189 /** @brief Get the user data associated to the current action */
190 void *getData() {return p_data;}
191 /** @brief Set the user data associated to the current action */
192 void setData(void* data);
194 /** @brief Get the cost of the current action */
195 double getCost() {return m_cost;}
196 /** @brief Set the cost of the current action */
197 void setCost(double cost) {m_cost = cost;}
199 /** @brief Update the maximum duration of the current action
200 * @param delta Amount to remove from the MaxDuration */
201 void updateMaxDuration(double delta) {double_update(&m_maxDuration, delta,sg_surf_precision);}
203 /** @brief Update the remaining time of the current action
204 * @param delta Amount to remove from the remaining time */
205 void updateRemains(double delta) {double_update(&m_remains, delta, sg_maxmin_precision*sg_surf_precision);}
207 /** @brief Set the remaining time of the current action */
208 void setRemains(double value) {m_remains = value;}
209 /** @brief Get the remaining time of the current action after updating the resource */
210 virtual double getRemains();
211 /** @brief Get the remaining time of the current action without updating the resource */
212 double getRemainsNoUpdate();
214 /** @brief Set the finish time of the current action */
215 void setFinishTime(double value) {m_finish = value;}
217 /**@brief Add a reference to the current action (refcounting) */
219 /** @brief Unref that action (and destroy it if refcount reaches 0)
220 * @return true if the action was destroyed and false if someone still has references on it
224 /** @brief Cancel the current Action if running */
225 virtual void cancel();
227 /** @brief Suspend the current Action */
228 virtual void suspend();
230 /** @brief Resume the current Action */
231 virtual void resume();
233 /** @brief Returns true if the current action is running */
234 virtual bool isSuspended();
236 /** @brief Get the maximum duration of the current action */
237 double getMaxDuration() {return m_maxDuration;}
238 /** @brief Set the maximum duration of the current Action */
239 virtual void setMaxDuration(double duration);
241 /** @brief Get the tracing category associated to the current action */
242 char *getCategory() {return p_category;}
243 /** @brief Set the tracing category of the current Action */
244 void setCategory(const char *category);
246 /** @brief Get the priority of the current Action */
247 double getPriority() {return m_priority;};
248 /** @brief Set the priority of the current Action */
249 virtual void setPriority(double priority);
251 /** @brief Get the state set in which the action is */
252 ActionList* getStateSet() {return p_stateSet;};
254 s_xbt_swag_hookup_t p_stateHookup;
256 simgrid::surf::Model *getModel() {return p_model;}
259 ActionList* p_stateSet;
260 double m_priority; /**< priority (1.0 by default) */
262 double m_remains; /**< How much of that cost remains to be done in the currently running task */
263 double m_maxDuration; /*< max_duration (may fluctuate until the task is completed) */
264 double m_finish; /**< finish time : this is modified during the run and fluctuates until the task is completed */
267 double m_start; /**< start time */
268 char *p_category; /**< tracing category for categorized resource utilization monitoring */
270 #ifdef HAVE_LATENCY_BOUND_TRACKING
271 int m_latencyLimited; /**< Set to 1 if is limited by latency, 0 otherwise */
274 simgrid::surf::Model *p_model;
275 void *p_data; /**< for your convenience */
279 virtual void updateRemainingLazy(double now);
280 void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
281 void heapRemove(xbt_heap_t heap);
282 void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);
283 void updateIndexHeap(int i);
284 lmm_variable_t getVariable() {return p_variable;}
285 double getLastUpdate() {return m_lastUpdate;}
286 void refreshLastUpdate() {m_lastUpdate = surf_get_clock();}
287 enum heap_action_type getHat() {return m_hat;}
288 bool is_linked() {return action_lmm_hook.is_linked();}
292 lmm_variable_t p_variable;
297 enum heap_action_type m_hat;
300 typedef Action::ActionList ActionList;
302 typedef boost::intrusive::member_hook<
303 Action, boost::intrusive::list_member_hook<>, &Action::action_lmm_hook> ActionLmmOptions;
304 typedef boost::intrusive::list<Action, ActionLmmOptions> ActionLmmList;
305 typedef ActionLmmList* ActionLmmListPtr;
311 /** @ingroup SURF_interface
312 * @brief SURF model interface class
313 * @details A model is an object which handle the interactions between its Resources and its Actions
315 XBT_PUBLIC_CLASS Model {
320 virtual void addTraces() =0;
322 /** @brief Get the set of [actions](@ref Action) in *ready* state */
323 virtual ActionList* getReadyActionSet() {return p_readyActionSet;}
325 /** @brief Get the set of [actions](@ref Action) in *running* state */
326 virtual ActionList* getRunningActionSet() {return p_runningActionSet;}
328 /** @brief Get the set of [actions](@ref Action) in *failed* state */
329 virtual ActionList* getFailedActionSet() {return p_failedActionSet;}
331 /** @brief Get the set of [actions](@ref Action) in *done* state */
332 virtual ActionList* getDoneActionSet() {return p_doneActionSet;}
334 /** @brief Get the set of modified [actions](@ref Action) */
335 virtual ActionLmmListPtr getModifiedSet() {return p_modifiedSet;}
337 /** @brief Get the maxmin system of the current Model */
338 lmm_system_t getMaxminSystem() {return p_maxminSystem;}
341 * @brief Get the update mechanism of the current Model
344 e_UM_t getUpdateMechanism() {return p_updateMechanism;}
346 /** @brief Get Action heap */
347 xbt_heap_t getActionHeap() {return p_actionHeap;}
350 * @brief Share the resources between the actions
352 * @param now The current time of the simulation
353 * @return The delta of time till the next action will finish
355 virtual double shareResources(double now);
356 virtual double shareResourcesLazy(double now);
357 virtual double shareResourcesFull(double now);
358 double shareResourcesMaxMin(ActionList* running_actions,
360 void (*solve) (lmm_system_t));
363 * @brief Update action to the current time
365 * @param now The current time of the simulation
366 * @param delta The delta of time since the last update
368 virtual void updateActionsState(double now, double delta);
369 virtual void updateActionsStateLazy(double now, double delta);
370 virtual void updateActionsStateFull(double now, double delta);
372 /** @brief Returns whether this model have an idempotent shareResource()
374 * The only model that is not is NS3: computing the next timestamp moves the model up to that point,
375 * so we need to call it only when the next timestamp of other sources is computed.
377 virtual bool shareResourcesIsIdempotent()=0;
380 ActionLmmListPtr p_modifiedSet;
381 lmm_system_t p_maxminSystem;
382 e_UM_t p_updateMechanism = UM_UNDEFINED;
383 int m_selectiveUpdate;
384 xbt_heap_t p_actionHeap;
387 ActionList* p_readyActionSet; /**< Actions in state SURF_ACTION_READY */
388 ActionList* p_runningActionSet; /**< Actions in state SURF_ACTION_RUNNING */
389 ActionList* p_failedActionSet; /**< Actions in state SURF_ACTION_FAILED */
390 ActionList* p_doneActionSet; /**< Actions in state SURF_ACTION_DONE */
400 /** @ingroup SURF_interface
401 * @brief Resource which have a metric handled by a maxmin system
404 double peak; /**< The peak of the metric, ie its max value */
405 double scale; /**< Current availability of the metric according to the traces, in [0,1] */
406 tmgr_trace_event_t event; /**< The associated trace event associated to the metric */
412 /** @ingroup SURF_interface
413 * @brief SURF resource interface class
414 * @details A resource represent an element of a component (e.g.: a link for the network)
416 XBT_PUBLIC_CLASS Resource {
421 * @brief Constructor of non-LMM Resources
423 * @param model Model associated to this Resource
424 * @param name The name of the Resource
426 Resource(Model *model, const char *name);
429 * @brief Constructor of LMM Resources
431 * @param model Model associated to this Resource
432 * @param name The name of the Resource
433 * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
435 Resource(Model *model, const char *name, lmm_constraint_t constraint);
437 Resource(Model *model, const char *name, lmm_constraint_t constraint, e_surf_resource_state_t stateInit);
440 * @brief Resource constructor
442 * @param model Model associated to this Resource
443 * @param name The name of the Resource
444 * @param stateInit the initial state of the Resource
446 Resource(Model *model, const char *name, e_surf_resource_state_t stateInit);
450 /** @brief Get the Model of the current Resource */
453 /** @brief Get the name of the current Resource */
454 const char *getName();
457 * @brief Update the state of the current Resource
460 * @param event_type [TODO]
461 * @param value [TODO]
464 virtual void updateState(tmgr_trace_event_t event_type, double value, double date)=0;
466 /** @brief Check if the current Resource is used (if it currently serves an action) */
467 virtual bool isUsed()=0;
469 /** @brief Check if the current Resource is active */
471 /** @brief Turn on the current Resource */
473 /** @brief Turn off the current Resource */
476 /** @brief Get the [state](\ref e_surf_resource_state_t) of the current Resource */
477 virtual e_surf_resource_state_t getState();
478 /** @brief Set the [state](\ref e_surf_resource_state_t) of the current Resource */
479 virtual void setState(e_surf_resource_state_t state);
485 e_surf_resource_state_t m_stateCurrent;
489 /** @brief Get the lmm constraint associated to this Resource if it is part of a LMM component */
490 lmm_constraint_t getConstraint();
492 lmm_constraint_t p_constraint;
498 #endif /* SURF_MODEL_H_ */