1 /* Copyright (c) 2004-2016. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include <boost/function.hpp>
16 #include <boost/intrusive/list.hpp>
18 #include <xbt/signal.hpp>
21 #include "surf/surf_routing.h"
22 #include "surf/surf.h"
23 #include "src/surf/surf_private.h"
24 #include "src/internal_config.h"
26 #define NO_MAX_DURATION -1.0
32 /* user-visible parameters */
33 extern XBT_PRIVATE double sg_tcp_gamma;
34 extern XBT_PRIVATE double sg_sender_gap;
35 extern XBT_PRIVATE double sg_latency_factor;
36 extern XBT_PRIVATE double sg_bandwidth_factor;
37 extern XBT_PRIVATE double sg_weight_S_parameter;
38 extern XBT_PRIVATE int sg_network_crosstraffic;
39 extern XBT_PRIVATE xbt_dynar_t surf_path;
42 XBT_PUBLIC(double) surf_get_clock(void);
45 extern XBT_PRIVATE double sg_sender_gap;
50 extern XBT_PRIVATE simgrid::xbt::signal<void(void)> surfExitCallbacks;
55 int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
61 enum heap_action_type{
71 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
72 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
78 XBT_PRIVATE void surf_action_lmm_update_index_heap(void *action, int i);
80 XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
85 /** @ingroup SURF_interface
86 * @brief SURF action interface class
87 * @details An action is an event generated by a resource (e.g.: a communication for the network)
89 XBT_PUBLIC_CLASS Action {
91 boost::intrusive::list_member_hook<> action_hook;
92 boost::intrusive::list_member_hook<> action_lmm_hook;
93 typedef boost::intrusive::member_hook<
94 Action, boost::intrusive::list_member_hook<>, &Action::action_hook> ActionOptions;
95 typedef boost::intrusive::list<Action, ActionOptions> ActionList;
98 * @brief Common initializations for the constructors
100 void initialize(simgrid::surf::Model *model, double cost, bool failed,
101 lmm_variable_t var = NULL);
105 * @brief Action constructor
107 * @param model The Model associated to this Action
108 * @param cost The cost of the Action
109 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
111 Action(simgrid::surf::Model *model, double cost, bool failed);
114 * @brief Action constructor
116 * @param model The Model associated to this Action
117 * @param cost The cost of the Action
118 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
119 * @param var The lmm variable associated to this Action if it is part of a LMM component
121 Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var);
123 /** @brief Destructor */
126 /** @brief Mark that the action is now finished */
129 /** @brief Get the [state](\ref e_surf_action_state_t) of the current Action */
130 e_surf_action_state_t getState(); /**< get the state*/
131 /** @brief Set the [state](\ref e_surf_action_state_t) of the current Action */
132 virtual void setState(e_surf_action_state_t state);
134 /** @brief Get the bound of the current Action */
136 /** @brief Set the bound of the current Action */
137 void setBound(double bound);
139 /** @brief Get the start time of the current action */
140 double getStartTime();
141 /** @brief Get the finish time of the current action */
142 double getFinishTime();
144 /** @brief Get the user data associated to the current action */
145 void *getData() {return p_data;}
146 /** @brief Set the user data associated to the current action */
147 void setData(void* data);
149 /** @brief Get the cost of the current action */
150 double getCost() {return m_cost;}
151 /** @brief Set the cost of the current action */
152 void setCost(double cost) {m_cost = cost;}
154 /** @brief Update the maximum duration of the current action
155 * @param delta Amount to remove from the MaxDuration */
156 void updateMaxDuration(double delta) {double_update(&m_maxDuration, delta,sg_surf_precision);}
158 /** @brief Update the remaining time of the current action
159 * @param delta Amount to remove from the remaining time */
160 void updateRemains(double delta) {double_update(&m_remains, delta, sg_maxmin_precision*sg_surf_precision);}
162 /** @brief Set the remaining time of the current action */
163 void setRemains(double value) {m_remains = value;}
164 /** @brief Get the remaining time of the current action after updating the resource */
165 virtual double getRemains();
166 /** @brief Get the remaining time of the current action without updating the resource */
167 double getRemainsNoUpdate();
169 /** @brief Set the finish time of the current action */
170 void setFinishTime(double value) {m_finish = value;}
172 /**@brief Add a reference to the current action (refcounting) */
174 /** @brief Unref that action (and destroy it if refcount reaches 0)
175 * @return true if the action was destroyed and false if someone still has references on it
179 /** @brief Cancel the current Action if running */
180 virtual void cancel();
182 /** @brief Suspend the current Action */
183 virtual void suspend();
185 /** @brief Resume the current Action */
186 virtual void resume();
188 /** @brief Returns true if the current action is running */
189 virtual bool isSuspended();
191 /** @brief Get the maximum duration of the current action */
192 double getMaxDuration() {return m_maxDuration;}
193 /** @brief Set the maximum duration of the current Action */
194 virtual void setMaxDuration(double duration);
196 /** @brief Get the tracing category associated to the current action */
197 char *getCategory() {return p_category;}
198 /** @brief Set the tracing category of the current Action */
199 void setCategory(const char *category);
201 /** @brief Get the priority of the current Action */
202 double getPriority() {return m_priority;};
203 /** @brief Set the priority of the current Action */
204 virtual void setPriority(double priority);
206 /** @brief Get the state set in which the action is */
207 ActionList* getStateSet() {return p_stateSet;};
209 s_xbt_swag_hookup_t p_stateHookup = {NULL,NULL};
211 simgrid::surf::Model *getModel() {return p_model;}
214 ActionList* p_stateSet;
215 double m_priority = 1.0; /**< priority (1.0 by default) */
217 double m_remains; /**< How much of that cost remains to be done in the currently running task */
218 double m_maxDuration = NO_MAX_DURATION; /*< max_duration (may fluctuate until the task is completed) */
219 double m_finish = -1; /**< finish time : this is modified during the run and fluctuates until the task is completed */
222 double m_start; /**< start time */
223 char *p_category = NULL; /**< tracing category for categorized resource utilization monitoring */
225 #ifdef HAVE_LATENCY_BOUND_TRACKING
226 int m_latencyLimited; /**< Set to 1 if is limited by latency, 0 otherwise */
229 simgrid::surf::Model *p_model;
230 void *p_data = NULL; /**< for your convenience */
234 virtual void updateRemainingLazy(double now);
235 void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
236 void heapRemove(xbt_heap_t heap);
237 void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);
238 void updateIndexHeap(int i);
239 lmm_variable_t getVariable() {return p_variable;}
240 double getLastUpdate() {return m_lastUpdate;}
241 void refreshLastUpdate() {m_lastUpdate = surf_get_clock();}
242 enum heap_action_type getHat() {return m_hat;}
243 bool is_linked() {return action_lmm_hook.is_linked();}
247 lmm_variable_t p_variable;
248 double m_lastValue = 0;
249 double m_lastUpdate = 0;
252 enum heap_action_type m_hat = NOTSET;
255 typedef Action::ActionList ActionList;
257 typedef boost::intrusive::member_hook<
258 Action, boost::intrusive::list_member_hook<>, &Action::action_lmm_hook> ActionLmmOptions;
259 typedef boost::intrusive::list<Action, ActionLmmOptions> ActionLmmList;
260 typedef ActionLmmList* ActionLmmListPtr;
266 /** @ingroup SURF_interface
267 * @brief SURF model interface class
268 * @details A model is an object which handle the interactions between its Resources and its Actions
270 XBT_PUBLIC_CLASS Model {
275 /** @brief Get the set of [actions](@ref Action) in *ready* state */
276 virtual ActionList* getReadyActionSet() {return p_readyActionSet;}
278 /** @brief Get the set of [actions](@ref Action) in *running* state */
279 virtual ActionList* getRunningActionSet() {return p_runningActionSet;}
281 /** @brief Get the set of [actions](@ref Action) in *failed* state */
282 virtual ActionList* getFailedActionSet() {return p_failedActionSet;}
284 /** @brief Get the set of [actions](@ref Action) in *done* state */
285 virtual ActionList* getDoneActionSet() {return p_doneActionSet;}
287 /** @brief Get the set of modified [actions](@ref Action) */
288 virtual ActionLmmListPtr getModifiedSet() {return p_modifiedSet;}
290 /** @brief Get the maxmin system of the current Model */
291 lmm_system_t getMaxminSystem() {return p_maxminSystem;}
294 * @brief Get the update mechanism of the current Model
297 e_UM_t getUpdateMechanism() {return p_updateMechanism;}
299 /** @brief Get Action heap */
300 xbt_heap_t getActionHeap() {return p_actionHeap;}
303 * @brief Share the resources between the actions
305 * @param now The current time of the simulation
306 * @return The delta of time till the next action will finish
308 virtual double next_occuring_event(double now);
309 virtual double next_occuring_event_lazy(double now);
310 virtual double next_occuring_event_full(double now);
311 double shareResourcesMaxMin(ActionList* running_actions,
312 lmm_system_t sys, void (*solve) (lmm_system_t));
315 * @brief Update action to the current time
317 * @param now The current time of the simulation
318 * @param delta The delta of time since the last update
320 virtual void updateActionsState(double now, double delta);
321 virtual void updateActionsStateLazy(double now, double delta);
322 virtual void updateActionsStateFull(double now, double delta);
324 /** @brief Returns whether this model have an idempotent shareResource()
326 * The only model that is not is NS3: computing the next timestamp moves the model up to that point,
327 * so we need to call it only when the next timestamp of other sources is computed.
329 virtual bool next_occuring_event_isIdempotent()=0;
332 ActionLmmListPtr p_modifiedSet;
333 lmm_system_t p_maxminSystem = nullptr;
334 e_UM_t p_updateMechanism = UM_UNDEFINED;
335 int m_selectiveUpdate;
336 xbt_heap_t p_actionHeap;
339 ActionList* p_readyActionSet; /**< Actions in state SURF_ACTION_READY */
340 ActionList* p_runningActionSet; /**< Actions in state SURF_ACTION_RUNNING */
341 ActionList* p_failedActionSet; /**< Actions in state SURF_ACTION_FAILED */
342 ActionList* p_doneActionSet; /**< Actions in state SURF_ACTION_DONE */
352 /** @ingroup SURF_interface
353 * @brief Resource which have a metric handled by a maxmin system
356 double peak; /**< The peak of the metric, ie its max value */
357 double scale; /**< Current availability of the metric according to the traces, in [0,1] */
358 tmgr_trace_iterator_t event; /**< The associated trace event associated to the metric */
364 /** @ingroup SURF_interface
365 * @brief SURF resource interface class
366 * @details A resource represent an element of a component (e.g.: a link for the network)
368 XBT_PUBLIC_CLASS Resource {
371 * @brief Constructor of non-LMM Resources
373 * @param model Model associated to this Resource
374 * @param name The name of the Resource
376 Resource(Model *model, const char *name);
379 * @brief Constructor of LMM Resources
381 * @param model Model associated to this Resource
382 * @param name The name of the Resource
383 * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
385 Resource(Model *model, const char *name, lmm_constraint_t constraint);
387 Resource(Model *model, const char *name, lmm_constraint_t constraint, int initiallyOn);
390 * @brief Resource constructor
392 * @param model Model associated to this Resource
393 * @param name The name of the Resource
394 * @param initiallyOn the initial state of the Resource
396 Resource(Model *model, const char *name, int initiallyOn);
400 /** @brief Get the Model of the current Resource */
403 /** @brief Get the name of the current Resource */
404 const char *getName();
407 * @brief Apply an event of external load event to that storage
409 * @param event What happened
410 * @param value [TODO]
412 virtual void apply_event(tmgr_trace_iterator_t event, double value)=0;
414 /** @brief Check if the current Resource is used (if it currently serves an action) */
415 virtual bool isUsed()=0;
417 /** @brief Check if the current Resource is active */
419 /** @brief Check if the current Resource is shut down */
420 virtual bool isOff();
421 /** @brief Turn on the current Resource */
422 virtual void turnOn();
423 /** @brief Turn off the current Resource */
424 virtual void turnOff();
432 /** @brief Get the lmm constraint associated to this Resource if it is part of a LMM component */
433 lmm_constraint_t getConstraint();
435 lmm_constraint_t p_constraint = nullptr;
441 #endif /* SURF_MODEL_H_ */