-/* Copyright (c) 2019-2022. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2019-2023. 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 DISK_IMPL_HPP_
+#define DISK_IMPL_HPP_
+
#include "simgrid/kernel/resource/Action.hpp"
#include "simgrid/kernel/resource/Model.hpp"
#include "simgrid/s4u/Disk.hpp"
#include "simgrid/s4u/Io.hpp"
#include "src/kernel/resource/Resource.hpp"
-#include "src/surf/surf_interface.hpp"
#include "xbt/PropertyHolder.hpp"
#include <map>
-#ifndef DISK_IMPL_HPP_
-#define DISK_IMPL_HPP_
-
-/*********
- * Model *
- *********/
-
namespace simgrid::kernel::resource {
/***********
* Classes *
*********/
class DiskModel : public Model {
public:
- explicit DiskModel(const std::string& name);
- DiskModel(const DiskModel&) = delete;
- DiskModel& operator=(const DiskModel&) = delete;
+ using Model::Model;
virtual DiskImpl* create_disk(const std::string& name, double read_bandwidth, double write_bandwidth) = 0;
};
Metric read_bw_ = {0.0, 0, nullptr};
Metric write_bw_ = {0.0, 0, nullptr};
double readwrite_bw_ = -1; /* readwrite constraint bound, usually max(read, write) */
+ std::atomic_int_fast32_t refcount_{0};
void apply_sharing_policy_cfg();
explicit DiskImpl(const std::string& name, double read_bandwidth, double write_bandwidth);
DiskImpl(const DiskImpl&) = delete;
DiskImpl& operator=(const DiskImpl&) = delete;
+ friend void intrusive_ptr_add_ref(DiskImpl* disk)
+ {
+ disk->refcount_.fetch_add(1, std::memory_order_acq_rel);
+ }
+ friend void intrusive_ptr_release(DiskImpl* disk)
+ {
+ if (disk->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
+ std::atomic_thread_fence(std::memory_order_acquire);
+ delete disk;
+ }
+ }
/** @brief Public interface */
const s4u::Disk* get_iface() const { return &piface_; }
DiskImpl* set_host(s4u::Host* host);
s4u::Host* get_host() const { return host_; }
- virtual void set_read_bandwidth(double value) { read_bw_.peak = value; }
+ void set_read_bandwidth(double value);
double get_read_bandwidth() const { return read_bw_.peak * read_bw_.scale; }
- virtual void set_write_bandwidth(double value) { write_bw_.peak = value; }
+ void set_write_bandwidth(double value);
double get_write_bandwidth() const { return write_bw_.peak * write_bw_.scale; }
- virtual void set_readwrite_bandwidth(double value) { readwrite_bw_ = value; }
+ void set_readwrite_bandwidth(double value);
double get_readwrite_bandwidth() const { return readwrite_bw_; }
DiskImpl* set_read_constraint(lmm::Constraint* constraint_read);