1 /* Copyright (c) 2004-2021. 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. */
6 #include "simgrid/s4u/Comm.hpp"
7 #include "simgrid/s4u/Engine.hpp"
8 #include "simgrid/s4u/Mailbox.hpp"
9 #include "simgrid/s4u/VirtualMachine.hpp"
11 #ifndef VM_LIVE_MIGRATION_HPP_
12 #define VM_LIVE_MIGRATION_HPP_
16 class VmMigrationExt {
18 s4u::ActorPtr issuer_ = nullptr;
19 s4u::ActorPtr tx_ = nullptr;
20 s4u::ActorPtr rx_ = nullptr;
21 static simgrid::xbt::Extension<simgrid::s4u::Host, VmMigrationExt> EXTENSION_ID;
22 virtual ~VmMigrationExt() = default;
23 explicit VmMigrationExt(s4u::ActorPtr issuer, s4u::ActorPtr rx, s4u::ActorPtr tx) : issuer_(issuer), tx_(tx), rx_(rx)
26 static void ensureVmMigrationExtInstalled();
30 /* The migration_rx process uses mbox_ctl to let the caller of do_migration() know the completion of the migration.
32 s4u::Mailbox* mbox_ctl;
33 /* The migration_rx and migration_tx processes use mbox to transfer migration data. */
35 s4u::VirtualMachine* vm_;
36 s4u::Host* src_pm_ = nullptr;
37 s4u::Host* dst_pm_ = nullptr;
40 explicit MigrationRx(s4u::VirtualMachine* vm, s4u::Host* dst_pm) : vm_(vm), dst_pm_(dst_pm)
42 src_pm_ = vm_->get_pm();
44 mbox_ctl = s4u::Mailbox::by_name(std::string("__mbox_mig_ctl:") + vm_->get_cname() + "(" + src_pm_->get_cname() +
45 "-" + dst_pm_->get_cname() + ")");
46 mbox = s4u::Mailbox::by_name(std::string("__mbox_mig_src_dst:") + vm_->get_cname() + "(" + src_pm_->get_cname() +
47 "-" + dst_pm_->get_cname() + ")");
53 /* The migration_rx and migration_tx processes use mbox to transfer migration data. */
55 s4u::VirtualMachine* vm_;
56 s4u::Host* src_pm_ = nullptr;
57 s4u::Host* dst_pm_ = nullptr;
60 explicit MigrationTx(s4u::VirtualMachine* vm, s4u::Host* dst_pm) : vm_(vm), dst_pm_(dst_pm)
62 src_pm_ = vm_->get_pm();
63 mbox = s4u::Mailbox::by_name(std::string("__mbox_mig_src_dst:") + vm_->get_cname() + "(" + src_pm_->get_cname() +
64 "-" + dst_pm_->get_cname() + ")");
67 sg_size_t sendMigrationData(sg_size_t size, int stage, int stage2_round, double mig_speed, double timeout);