1 /* Copyright (c) 2004-2023. 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/Engine.hpp"
7 #include "simgrid/s4u/Mailbox.hpp"
8 #include "simgrid/s4u/VirtualMachine.hpp"
10 #ifndef VM_LIVE_MIGRATION_HPP_
11 #define VM_LIVE_MIGRATION_HPP_
13 namespace simgrid::plugin::vm {
14 class VmMigrationExt {
16 s4u::ActorPtr issuer_ = nullptr;
17 s4u::ActorPtr tx_ = nullptr;
18 s4u::ActorPtr rx_ = nullptr;
19 static xbt::Extension<s4u::Host, VmMigrationExt> EXTENSION_ID;
20 explicit VmMigrationExt(s4u::ActorPtr issuer, s4u::ActorPtr rx, s4u::ActorPtr tx) : issuer_(issuer), tx_(tx), rx_(rx)
23 static void ensureVmMigrationExtInstalled();
27 /* The migration_rx process uses mbox_ctl to let the caller of do_migration() know the completion of the migration.
29 s4u::Mailbox* mbox_ctl;
30 /* The migration_rx and migration_tx processes use mbox to transfer migration data. */
32 s4u::VirtualMachine* vm_;
33 s4u::Host* src_pm_ = nullptr;
34 s4u::Host* dst_pm_ = nullptr;
37 explicit MigrationRx(s4u::VirtualMachine* vm, s4u::Host* dst_pm) : vm_(vm), dst_pm_(dst_pm)
39 src_pm_ = vm_->get_pm();
41 mbox_ctl = s4u::Mailbox::by_name("__mbox_mig_ctl:" + vm_->get_name() + "(" + src_pm_->get_name() + "-" +
42 dst_pm_->get_name() + ")");
43 mbox = s4u::Mailbox::by_name("__mbox_mig_src_dst:" + vm_->get_name() + "(" + src_pm_->get_name() + "-" +
44 dst_pm_->get_name() + ")");
50 /* The migration_rx and migration_tx processes use mbox to transfer migration data. */
52 s4u::VirtualMachine* vm_;
53 s4u::Host* src_pm_ = nullptr;
54 s4u::Host* dst_pm_ = nullptr;
57 explicit MigrationTx(s4u::VirtualMachine* vm, s4u::Host* dst_pm) : vm_(vm), dst_pm_(dst_pm)
59 src_pm_ = vm_->get_pm();
60 mbox = s4u::Mailbox::by_name("__mbox_mig_src_dst:" + vm_->get_name() + "(" + src_pm_->get_name() + "-" +
61 dst_pm_->get_name() + ")");
64 sg_size_t sendMigrationData(sg_size_t size, int stage, int stage2_round, double mig_speed, double timeout);
66 } // namespace simgrid::plugin::vm