+++ /dev/null
-/* Copyright (c) 2004-2019. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SURF_PMGR_H
-#define SURF_PMGR_H
-
-#include "simgrid/forward.h"
-#include "xbt/sysdep.h"
-
-#include <queue>
-#include <vector>
-
-/* Iterator within a trace */
-namespace simgrid {
-namespace kernel {
-namespace profile {
-/** @brief Links a profile to a resource */
-class Event {
-public:
- Profile* profile;
- unsigned int idx;
- resource::Resource* resource;
- bool free_me;
-};
-
-} // namespace resource
-} // namespace kernel
-} // namespace simgrid
-extern XBT_PRIVATE simgrid::kernel::profile::FutureEvtSet future_evt_set;
-
-/**
- * @brief Free a trace event structure
- *
- * This function frees a trace_event if it can be freed, ie, if it has the free_me flag set to 1.
- * This flag indicates whether the structure is still used somewhere or not.
- * When the structure is freed, the argument is set to nullptr
- */
-XBT_PUBLIC void tmgr_trace_event_unref(simgrid::kernel::profile::Event** trace_event);
-
-XBT_PUBLIC void tmgr_finalize();
-
-XBT_PUBLIC simgrid::kernel::profile::Profile* tmgr_trace_new_from_file(std::string filename);
-XBT_PUBLIC simgrid::kernel::profile::Profile* tmgr_trace_new_from_string(std::string id, std::string input,
- double periodicity);
-
-namespace simgrid {
-namespace kernel {
-namespace profile {
-
-/** @brief Modeling of the availability profile (due to an external load) or the churn
- *
- * There is 4 main concepts in this module:
- * - #simgrid::kernel::profile::DatedValue: a pair <timestamp, value> (both are of type double)
- * - #simgrid::kernel::profile::Profile: a list of dated values
- * - #simgrid::kernel::profile::Event: links a given trace to a given SimGrid resource.
- * A Cpu for example has 2 kinds of events: state (ie, is it ON/OFF) and speed,
- * while a link has 3 iterators: state, bandwidth and latency.
- * - #simgrid::kernel::profile::FutureEvtSet: makes it easy to find the next occuring event of all profiles
- */
-class XBT_PUBLIC DatedValue {
-public:
- double date_ = 0;
- double value_ = 0;
- explicit DatedValue() = default;
- explicit DatedValue(double d, double v) : date_(d), value_(v) {}
- bool operator==(DatedValue const& e2) const;
- bool operator!=(DatedValue const& e2) const { return not(*this == e2); }
-};
-std::ostream& operator<<(std::ostream& out, const DatedValue& e);
-
-/** @brief A profile is a set of timed values, encoding the value that a variable takes at what time
- *
- * It is useful to model dynamic platforms, where an external load that makes the resource availability change over
- * time. To model that, you have to set several profiles per resource: one for the on/off state and one for each
- * numerical value (computational speed, bandwidth and/or latency).
- */
-class XBT_PUBLIC Profile {
-public:
- /** Creates an empty trace */
- explicit Profile();
- virtual ~Profile();
- // private:
- std::vector<DatedValue> event_list;
-};
-
-/** @brief Future Event Set (collection of iterators over the traces)
- * That's useful to quickly know which is the next occurring event in a set of traces. */
-class XBT_PUBLIC FutureEvtSet {
-public:
- FutureEvtSet();
- virtual ~FutureEvtSet();
- double next_date() const;
- Event* pop_leq(double date, double* value, resource::Resource** resource);
- Event* add_trace(Profile* profile, resource::Resource* resource);
-
-private:
- typedef std::pair<double, Event*> Qelt;
- std::priority_queue<Qelt, std::vector<Qelt>, std::greater<Qelt>> heap_;
-};
-
-} // namespace profile
-} // namespace kernel
-} // namespace simgrid
-
-#endif /* SURF_PMGR_H */
