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+ <object id="TOC" data="graphical-toc.svg" type="image/svg+xml"></object>
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- <br/>
- <br/>
+ <br>
+ <br>
You can extend SimGrid without modifying it, thanks to our plugin
mechanism. This page describes how to write your own plugin, and
-documents some of the plugins distributed with SimGrid.
+documents some of the plugins distributed with SimGrid:
+ - :ref:`Host Load <plugin_host_load>`: monitors the load of the compute units.
- :ref:`Host Energy <plugin_host_energy>`: models the energy dissipation of the compute units.
- :ref:`Link Energy <plugin_link_energy>`: models the energy dissipation of the network.
- - :ref:`Host Load <plugin_host_load>`: monitors the load of the compute units.
+ - :ref:`WiFi Energy <plugin_link_energy_wifi>`: models the energy dissipation of wifi links.
+
+You can activate these plugins with the :ref:`--cfg=plugin <cfg=plugin>` command
+line option, for example with ``--cfg=plugin:host_energy``. You can get the full
+list of existing plugins with ``--cfg=plugin:help``.
Defining a Plugin
*****************
A plugin can get some additional code executed within the SimGrid
kernel, and attach the data needed by that code to the SimGrid
-objects.
+objects.
-The host load plugin in
+The host load plugin in
`src/plugins/host_load.cpp <https://framagit.org/simgrid/simgrid/tree/master/src/plugins/host_load.cpp>`_
constitutes a good introductory example. It defines a class
-```HostLoad``` that is meant to be attached to each host. This class
-contains a ```EXTENSION_ID``` field that is mandatory to our extension
-mechanism. Then, the function ```sg_host_load_plugin_init```
+``HostLoad`` that is meant to be attached to each host. This class
+contains a ``EXTENSION_ID`` field that is mandatory to our extension
+mechanism. Then, the function ``sg_host_load_plugin_init``
initializes the plugin. It first calls
:cpp:func:`simgrid::s4u::Host::extension_create()` to register its
-extension to the ```s4u::Host``` objects, and then attaches some
+extension to the ``s4u::Host`` objects, and then attaches some
callbacks to signals.
You can attach your own extension to most kinds of s4u object:
:cpp:class:`Links <simgrid::s4u::Link>`. If you need to extend another
kind of objects, please let us now.
+.. cpp:class:: template<class R, class... P> simgrid::xbt::signal<R(P...)>
+
+ A signal/slot mechanism, where you can attach callbacks to a given signal, and then fire the signal.
+
+ The template parameter is the function signature of the signal (the return value currently ignored).
+
+.. cpp:function::: template<class R, class... P, class U> unsigned int simgrid::xbt::signal<R(P...)>::connect(U slot)
+
+ Add a new callback to this signal.
+
+.. cpp:function:: template<class R, class... P> simgrid::xbt::signal<R(P...)>::operator()(P... args)
+
+ Fire that signal, invoking all callbacks.
+
Partial list of existing signals in s4u:
-- :cpp:member:`Actor::on_creation <simgrid::s4u::Actor::on_creation>`
- :cpp:member:`Actor::on_suspend <simgrid::s4u::Actor::on_suspend>`
- :cpp:member:`Actor::on_resume <simgrid::s4u::Actor::on_resume>`
- :cpp:member:`Actor::on_sleep <simgrid::s4u::Actor::on_sleep>`
- :cpp:member:`Actor::on_wake_up <simgrid::s4u::Actor::on_wake_up>`
- :cpp:member:`Actor::on_migration_start <simgrid::s4u::Actor::on_migration_start>`
- :cpp:member:`Actor::on_migration_end <simgrid::s4u::Actor::on_migration_end>`
- :cpp:member:`Actor::on_termination <simgrid::s4u::Actor::on_termination>`
- :cpp:member:`Actor::on_destruction <simgrid::s4u::Actor::on_destruction>`
-- :cpp:member:`Comm::on_sender_start <simgrid::s4u::Comm::on_sender_start>`
- :cpp:member:`Comm::on_receiver_start <simgrid::s4u::Comm::on_receiver_start>`
- :cpp:member:`Comm::on_completion <simgrid::s4u::Comm::on_completion>`
-- :cpp:member:`Engine::on_platform_creation <simgrid::s4u::Engine::on_platform_creation>`
- :cpp:member:`Engine::on_platform_created <simgrid::s4u::Engine::on_platform_created>`
- :cpp:member:`Engine::on_time_advance <simgrid::s4u::Engine::on_time_advance>`
- :cpp:member:`Engine::on_simulation_end <simgrid::s4u::Engine::on_simulation_end>`
- :cpp:member:`Engine::on_deadlock <simgrid::s4u::Engine::on_deadlock>`
-- :cpp:member:`Exec::on_start <simgrid::s4u::Exec::on_start>`
- :cpp:member:`Exec::on_completion <simgrid::s4u::Exec::on_completion>`
-- :cpp:member:`Host::on_creation <simgrid::s4u::Host::on_creation>`
- :cpp:member:`Host::on_destruction <simgrid::s4u::Host::on_destruction>`
- :cpp:member:`Host::on_state_change <simgrid::s4u::Host::on_state_change>`
- :cpp:member:`Host::on_speed_change <simgrid::s4u::Host::on_speed_change>`
-- :cpp:member:`Link::on_creation <simgrid::s4u::Link::on_creation>`
- :cpp:member:`Link::on_destruction <simgrid::s4u::Link::on_destruction>`
- :cpp:member:`Link::on_state_change <simgrid::s4u::Link::on_state_change>`
- :cpp:member:`Link::on_speed_change <simgrid::s4u::Link::on_bandwidth_change>`
- :cpp:member:`Link::on_communicate <simgrid::s4u::Link::on_communicate>`
- :cpp:member:`Link::on_communication_state_change <simgrid::s4u::Link::on_communication_state_change>`
-- :cpp:member:`Netzone::on_creation <simgrid::s4u::Netzone::on_creation>`
- :cpp:member:`Netzone::on_seal <simgrid::s4u::Netzone::on_seal>`
- :cpp:member:`Netzone::on_route_creation <simgrid::s4u::Netzone::on_route_creation>`
-- :cpp:member:`VirtualMachine::on_start <simgrid::s4u::VirtualMachine::on_start>`
- :cpp:member:`VirtualMachine::on_started <simgrid::s4u::VirtualMachine::on_started>`
- :cpp:member:`VirtualMachine::on_suspend <simgrid::s4u::VirtualMachine::on_suspend>`
- :cpp:member:`VirtualMachine::on_resume <simgrid::s4u::VirtualMachine::on_resume>`
- :cpp:member:`VirtualMachine::on_migration_start <simgrid::s4u::VirtualMachine::on_migration_start>`
- :cpp:member:`VirtualMachine::on_migration_end <simgrid::s4u::VirtualMachine::on_migration_end>`
+- :cpp:func:`Actor::on_creation <simgrid::s4u::Actor::on_creation_cb>`
+ :cpp:func:`Actor::on_suspend <simgrid::s4u::Actor::on_suspend_cb>`
+ :cpp:func:`Actor::on_resume <simgrid::s4u::Actor::on_resume_cb>`
+ :cpp:func:`Actor::on_sleep <simgrid::s4u::Actor::on_sleep_cb>`
+ :cpp:func:`Actor::on_wake_up <simgrid::s4u::Actor::on_wake_up_cb>`
+ :cpp:func:`Actor::on_host_change <simgrid::s4u::Actor::on_host_change_cb>`
+ :cpp:func:`Actor::on_termination <simgrid::s4u::Actor::on_termination_cb>`
+ :cpp:func:`Actor::on_destruction <simgrid::s4u::Actor::on_destruction_cb>`
+- :cpp:func:`Comm::on_send <simgrid::s4u::Comm::on_send_cb>`
+ :cpp:func:`Comm::on_recv <simgrid::s4u::Comm::on_recv_cb>`
+ :cpp:func:`Comm::on_completion <simgrid::s4u::Comm::on_completion_cb>`
+- :cpp:func:`CommImpl::on_start <simgrid::s4u::Comm::on_start_cb>`
+ :cpp:func:`CommImpl::on_completion <simgrid::s4u::Comm::on_completion_cb>`
+- :cpp:func:`Disk::on_creation <simgrid::s4u::Disk::on_creation_cb>`
+ :cpp:func:`Disk::on_destruction <simgrid::s4u::Disk::on_destruction_cb>`
+ :cpp:func:`Disk::on_state_change <simgrid::s4u::Disk::on_state_change_cb>`
+- :cpp:func:`Engine::on_platform_creation <simgrid::s4u::Engine::on_platform_creation_cb>`
+ :cpp:func:`Engine::on_platform_created <simgrid::s4u::Engine::on_platform_created_cb>`
+ :cpp:func:`Engine::on_time_advance <simgrid::s4u::Engine::on_time_advance_cb>`
+ :cpp:func:`Engine::on_simulation_end <simgrid::s4u::Engine::on_simulation_end_cb>`
+ :cpp:func:`Engine::on_deadlock <simgrid::s4u::Engine::on_deadlock_cb>`
+- :cpp:func:`Exec::on_start <simgrid::s4u::Exec::on_start_cb>`
+ :cpp:func:`Exec::on_completion <simgrid::s4u::Exec::on_completion_cb>`
+- :cpp:func:`Host::on_creation <simgrid::s4u::Host::on_creation_cb>`
+ :cpp:func:`Host::on_destruction <simgrid::s4u::Host::on_destruction_cb>`
+ :cpp:func:`Host::on_state_change <simgrid::s4u::Host::on_state_change_cb>`
+ :cpp:func:`Host::on_speed_change <simgrid::s4u::Host::on_speed_change_cb>`
+- :cpp:func:`Io::on_start <simgrid::s4u::Io::on_start_cb>`
+ :cpp:func:`Io::on_completion <simgrid::s4u::Io::on_completion_cb>`
+- :cpp:func:`Link::on_creation <simgrid::s4u::Link::on_creation_cb>`
+ :cpp:func:`Link::on_destruction <simgrid::s4u::Link::on_destruction_cb>`
+ :cpp:func:`Link::on_state_change <simgrid::s4u::Link::on_state_change_cb>`
+ :cpp:func:`Link::on_speed_change <simgrid::s4u::Link::on_bandwidth_change_cb>`
+ :cpp:func:`Link::on_communication_state_change <simgrid::s4u::Link::on_communication_state_change_cb>`
+- :cpp:func:`NetZone::on_creation <simgrid::s4u::NetZone::on_creation_cb>`
+ :cpp:func:`NetZone::on_seal <simgrid::s4u::NetZone::on_seal_cb>`
+- :cpp:func:`VirtualMachine::on_start <simgrid::s4u::VirtualMachine::on_start_cb>`
+ :cpp:func:`VirtualMachine::on_started <simgrid::s4u::VirtualMachine::on_started_cb>`
+ :cpp:func:`VirtualMachine::on_suspend <simgrid::s4u::VirtualMachine::on_suspend_cb>`
+ :cpp:func:`VirtualMachine::on_resume <simgrid::s4u::VirtualMachine::on_resume_cb>`
+ :cpp:func:`VirtualMachine::on_migration_start <simgrid::s4u::VirtualMachine::on_migration_start_cb>`
+ :cpp:func:`VirtualMachine::on_migration_end <simgrid::s4u::VirtualMachine::on_migration_end_cb>`
Existing Plugins
****************
.. _plugin_host_energy:
-Host Energy Plugin
-==================
+Host Energy
+===========
+
+.. doxygengroup:: plugin_host_energy
+
-.. doxygengroup:: Plugin_host_energy
.. _plugin_link_energy:
-Link Energy Plugin
-==================
+Link Energy
+===========
+
+.. doxygengroup:: plugin_link_energy
+
+.. _plugin_link_energy_wifi:
+
+WiFi Energy
+===========
+
+.. doxygengroup:: plugin_link_energy_wifi
+
-.. doxygengroup:: Plugin_link_energy
.. _plugin_host_load:
-Host Load Plugin
-================
+Host Load
+=========
+
+.. doxygengroup:: plugin_host_load
+
+
+
+.. _plugin_filesystem:
+
+File System
+===========
+
+.. doxygengroup:: plugin_filesystem
-.. doxygengroup:: Plugin_host_load
.. LocalWords: SimGrid