1 /* s4u::Engine Simulation Engine and global functions. */
3 /* Copyright (c) 2006-2017. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "instr/instr_interface.h"
10 #include "simgrid/s4u/Engine.hpp"
11 #include "simgrid/s4u/Host.hpp"
12 #include "simgrid/s4u/Mailbox.hpp"
13 #include "simgrid/s4u/NetZone.hpp"
14 #include "simgrid/s4u/Storage.hpp"
15 #include "simgrid/simix.h"
16 #include "src/kernel/EngineImpl.hpp"
17 #include "src/kernel/routing/NetPoint.hpp"
18 #include "src/kernel/routing/NetZoneImpl.hpp"
19 #include "src/surf/network_interface.hpp"
20 #include "surf/surf.hpp" // routing_platf. FIXME:KILLME. SOON
22 XBT_LOG_NEW_CATEGORY(s4u,"Log channels of the S4U (Simgrid for you) interface");
26 xbt::signal<void()> onPlatformCreated;
27 xbt::signal<void()> onSimulationEnd;
28 xbt::signal<void(double)> onTimeAdvance;
29 xbt::signal<void(void)> onDeadlock;
31 Engine *Engine::instance_ = nullptr; /* That singleton is awful, but I don't see no other solution right now. */
33 Engine::Engine(int *argc, char **argv) {
34 xbt_assert(s4u::Engine::instance_ == nullptr, "It is currently forbidden to create more than one instance of s4u::Engine");
36 SIMIX_global_init(argc, argv);
38 pimpl = new kernel::EngineImpl();
39 s4u::Engine::instance_ = this;
45 s4u::Engine::instance_ = nullptr;
48 Engine* Engine::getInstance()
50 if (s4u::Engine::instance_ == nullptr)
51 return new Engine(0, nullptr);
53 return s4u::Engine::instance_;
56 void Engine::shutdown() {
57 delete s4u::Engine::instance_;
58 s4u::Engine::instance_ = nullptr;
61 double Engine::getClock()
63 return SIMIX_get_clock();
66 void Engine::loadPlatform(const char *platf)
68 SIMIX_create_environment(platf);
71 void Engine::registerFunction(const char*name, int (*code)(int,char**))
73 SIMIX_function_register(name,code);
75 void Engine::registerDefault(int (*code)(int,char**))
77 SIMIX_function_register_default(code);
79 void Engine::loadDeployment(const char *deploy)
81 SIMIX_launch_application(deploy);
83 /** @brief Returns the amount of hosts in the platform */
84 size_t Engine::getHostCount()
86 return pimpl->hosts_.size();
88 /** @brief Fills the passed list with all hosts found in the platform */
89 void Engine::getHostList(std::vector<Host*>* list)
91 for (auto const& kv : pimpl->hosts_)
92 list->push_back(kv.second);
94 /** @brief Returns the list of all hosts found in the platform */
95 std::vector<Host*> Engine::getHostList()
97 std::vector<Host*> res;
98 for (auto const& kv : pimpl->hosts_)
99 res.push_back(kv.second);
102 void Engine::addHost(std::string name, simgrid::s4u::Host* host)
104 pimpl->hosts_[name] = host;
106 void Engine::delHost(std::string name)
108 pimpl->hosts_.erase(name);
110 simgrid::s4u::Host* Engine::hostByName(std::string name)
112 return pimpl->hosts_.at(name); // Will raise a std::out_of_range if the host does not exist
114 simgrid::s4u::Host* Engine::hostByNameOrNull(std::string name)
116 auto host = pimpl->hosts_.find(name);
117 return host == pimpl->hosts_.end() ? nullptr : host->second;
120 /** @brief Returns the amount of links in the platform */
121 size_t Engine::getLinkCount()
123 return simgrid::surf::LinkImpl::linksCount();
125 /** @brief Fills the passed list with all hosts found in the platform */
126 void Engine::getLinkList(std::vector<Link*>* list)
128 simgrid::surf::LinkImpl::linksList(list);
132 if (MC_is_active()) {
139 s4u::NetZone* Engine::getNetRoot()
141 return pimpl->netRoot_;
144 static s4u::NetZone* netzoneByNameRecursive(s4u::NetZone* current, const char* name)
146 if (not strcmp(current->getCname(), name))
149 for (auto const& elem : *(current->getChildren())) {
150 simgrid::s4u::NetZone* tmp = netzoneByNameRecursive(elem, name);
151 if (tmp != nullptr) {
158 /** @brief Retrieve the NetZone of the given name (or nullptr if not found) */
159 NetZone* Engine::getNetzoneByNameOrNull(const char* name)
161 return netzoneByNameRecursive(getNetRoot(), name);
164 /** @brief Retrieve the netpoint of the given name (or nullptr if not found) */
165 simgrid::kernel::routing::NetPoint* Engine::getNetpointByNameOrNull(std::string name)
167 auto netp = pimpl->netpoints_.find(name);
168 return netp == pimpl->netpoints_.end() ? nullptr : netp->second;
171 /** @brief Fill the provided vector with all existing netpoints */
172 void Engine::getNetpointList(std::vector<simgrid::kernel::routing::NetPoint*>* list)
174 for (auto const& kv : pimpl->netpoints_)
175 list->push_back(kv.second);
177 /** @brief Register a new netpoint to the system */
178 void Engine::netpointRegister(simgrid::kernel::routing::NetPoint* point)
180 // simgrid::simix::kernelImmediate([&]{ FIXME: this segfaults in set_thread
181 pimpl->netpoints_[point->getName()] = point;
184 /** @brief Unregister a given netpoint */
185 void Engine::netpointUnregister(simgrid::kernel::routing::NetPoint* point)
187 simgrid::simix::kernelImmediate([this, point] {
188 pimpl->netpoints_.erase(point->getName());
193 bool Engine::isInitialized()
195 return Engine::instance_ != nullptr;
197 void Engine::setConfig(std::string str)
199 xbt_cfg_set_parse(str.c_str());