1 /* Copyright (c) 2004-2017. 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. */
9 #include <simgrid/link.h>
11 #include <xbt/signal.hpp>
13 #include <unordered_map>
24 /** @brief A Link represents the network facilities between [hosts](\ref simgrid::s4u::Host) */
27 friend simgrid::surf::LinkImpl;
29 // Links are created from the NetZone, and destroyed by their private implementation when the simulation ends
30 explicit Link(surf::LinkImpl* pimpl) : pimpl_(pimpl) {}
31 virtual ~Link() = default;
32 // The private implementation, that never changes
33 surf::LinkImpl* const pimpl_;
36 /** @brief Retrieve a link from its name */
37 static Link* byName(const char* name);
39 /** @brief Get da name */
42 /** @brief Get the bandwidth in bytes per second of current Link */
45 /** @brief Get the latency in seconds of current Link */
48 /** @brief The sharing policy is a @{link e_surf_link_sharing_policy_t::EType} (0: FATPIPE, 1: SHARED, 2: FULLDUPLEX)
52 /** @brief Check if the Link is used */
59 void setData(void* d);
61 void setStateTrace(tmgr_trace_t trace); /*< setup the trace file with states events (ON or OFF). Trace must contain
63 void setBandwidthTrace(tmgr_trace_t trace); /*< setup the trace file with bandwidth events (peak speed changes due to
64 external load). Trace must contain percentages (value between 0 and 1). */
65 void setLatencyTrace(tmgr_trace_t trace); /*< setup the trace file with latency events (peak latency changes due to
66 external load). Trace must contain absolute values */
69 /** @brief Callback signal fired when a new Link is created */
70 static simgrid::xbt::signal<void(s4u::Link&)> onCreation;
72 /** @brief Callback signal fired when a Link is destroyed */
73 static simgrid::xbt::signal<void(s4u::Link&)> onDestruction;
75 /** @brief Callback signal fired when the state of a Link changes (when it is turned on or off) */
76 static simgrid::xbt::signal<void(s4u::Link&)> onStateChange;
78 /** @brief Callback signal fired when a communication starts */
79 static simgrid::xbt::signal<void(surf::NetworkAction*, s4u::Host* src, s4u::Host* dst)> onCommunicate;
81 /** @brief Callback signal fired when a communication changes it state (ready/done/cancel) */
82 static simgrid::xbt::signal<void(surf::NetworkAction*)> onCommunicationStateChange;
87 #endif /* SURF_NETWORK_INTERFACE_HPP_ */