-/* Copyright (c) 2013-2015. The SimGrid Team.
+/* Copyright (c) 2013-2016. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include <vector>
+
#include "xbt/dict.h"
#include "simgrid/host.h"
-#include "surf/surf_routing.h" // SIMIX_HOST_LEVEL and friends FIXME: make private here
+#include <xbt/Extendable.hpp>
+#include <simgrid/s4u/host.hpp>
+
+#include "src/kernel/routing/NetPoint.hpp"
+#include "src/simix/smx_host_private.h"
+#include "src/surf/HostImpl.hpp"
+#include "src/surf/cpu_interface.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sg_host, sd, "Logging specific to sg_hosts");
+
+// FIXME: The following duplicates the content of s4u::Host
+extern std::map<std::string, simgrid::s4u::Host*> host_list;
+
+extern "C" {
+
+void sg_host_exit()
+{
+ /* copy all names to not modify the map while iterating over it.
+ *
+ * Plus, the hosts are destroyed in the lexicographic order to ensure
+ * that the output is reproducible: we don't want to kill them in the
+ * pointer order as it could be platform-dependent, which would break
+ * the tests.
+ */
+ std::vector<std::string> names = std::vector<std::string>();
+ for (auto kv : host_list)
+ names.push_back(kv.second->name());
-int SIMIX_HOST_LEVEL; //Simix host level
+ std::sort(names.begin(), names.end());
-#include "simix/smx_host_private.h" // SIMIX_host_destroy. FIXME: killme
-void sg_host_init() {
- SIMIX_HOST_LEVEL = xbt_lib_add_level(host_lib,SIMIX_host_destroy);
+ for (auto name : names)
+ host_list.at(name)->destroy();
+
+ // host_list.clear(); This would be sufficient if the dict would contain smart_ptr. It's now useless
}
-smx_host_priv_t sg_host_simix(sg_host_t host){
- return (smx_host_priv_t) xbt_lib_get_level(host, SIMIX_HOST_LEVEL);
+size_t sg_host_count()
+{
+ return host_list.size();
+}
+/** @brief Returns the host list
+ *
+ * Uses sg_host_count() to know the array size.
+ *
+ * \return an array of \ref sg_host_t containing all the hosts in the platform.
+ * \remark The host order in this array is generally different from the
+ * creation/declaration order in the XML platform (we use a hash table
+ * internally).
+ * \see sg_host_count()
+ */
+sg_host_t *sg_host_list() {
+ xbt_assert(sg_host_count() > 0, "There is no host!");
+ return (sg_host_t*)xbt_dynar_to_array(sg_hosts_as_dynar());
}
-void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
- xbt_lib_set(host_lib,host->key,SIMIX_HOST_LEVEL,smx_host);
+
+const char *sg_host_get_name(sg_host_t host)
+{
+ return host->cname();
}
-void sg_host_simix_destroy(sg_host_t host) {
- xbt_lib_unset(host_lib,host->key,SIMIX_HOST_LEVEL,1);
+
+void* sg_host_extension_get(sg_host_t host, size_t ext)
+{
+ return host->extension(ext);
}
+size_t sg_host_extension_create(void(*deleter)(void*))
+{
+ return simgrid::s4u::Host::extension_create(deleter);
+}
-/*
-host::host() {
- // TODO Auto-generated constructor stub
+sg_host_t sg_host_by_name(const char *name)
+{
+ return simgrid::s4u::Host::by_name_or_null(name);
+}
+static int hostcmp_voidp(const void* pa, const void* pb)
+{
+ return strcmp((*static_cast<simgrid::s4u::Host* const*>(pa))->cname(),
+ (*static_cast<simgrid::s4u::Host* const*>(pb))->cname());
}
-host::~host() {
- // TODO Auto-generated destructor stub
-}*/
+xbt_dynar_t sg_hosts_as_dynar()
+{
+ xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),nullptr);
+
+ for (auto kv : host_list) {
+ simgrid::s4u::Host* host = kv.second;
+ if (host && host->pimpl_netpoint && host->pimpl_netpoint->isHost())
+ xbt_dynar_push(res, &host);
+ }
+ xbt_dynar_sort(res, hostcmp_voidp);
+ return res;
+}
+
+// ========= Layering madness ==============*
+
+// ========== User data Layer ==========
+void *sg_host_user(sg_host_t host) {
+ return host->extension(USER_HOST_LEVEL);
+}
+void sg_host_user_set(sg_host_t host, void* userdata) {
+ host->extension_set(USER_HOST_LEVEL,userdata);
+}
+void sg_host_user_destroy(sg_host_t host) {
+ host->extension_set(USER_HOST_LEVEL, nullptr);
+}
+
+// ========= storage related functions ============
+xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host){
+ return host->pimpl_->getMountedStorageList();
+}
+
+xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host){
+ xbt_dynar_t storage_dynar = xbt_dynar_new(sizeof(const char*), nullptr);
+ for (auto name : host->attachedStorages())
+ xbt_dynar_push(storage_dynar, &name);
+ return storage_dynar;
+}
+
+// =========== user-level functions ===============
+// ================================================
+/** @brief Returns the total speed of a host */
+double sg_host_speed(sg_host_t host)
+{
+ return host->speed();
+}
+
+double sg_host_get_available_speed(sg_host_t host)
+{
+ return host->pimpl_cpu->getAvailableSpeed();
+}
+
+/** @brief Returns the number of power states for a host.
+ *
+ * See also @ref SURF_plugin_energy.
+ */
+int sg_host_get_nb_pstates(sg_host_t host) {
+ return host->pstatesCount();
+}
+
+/** @brief Gets the pstate at which that host currently runs.
+ *
+ * See also @ref SURF_plugin_energy.
+ */
+int sg_host_get_pstate(sg_host_t host) {
+ return host->pstate();
+}
+/** @brief Sets the pstate at which that host should run.
+ *
+ * See also @ref SURF_plugin_energy.
+ */
+void sg_host_set_pstate(sg_host_t host,int pstate) {
+ host->setPstate(pstate);
+}
+
+/** @brief Get the properties of an host */
+xbt_dict_t sg_host_get_properties(sg_host_t host) {
+ return host->properties();
+}
+
+/** \ingroup m_host_management
+ * \brief Returns the value of a given host property
+ *
+ * \param host a host
+ * \param name a property name
+ * \return value of a property (or nullptr if property not set)
+*/
+const char *sg_host_get_property_value(sg_host_t host, const char *name)
+{
+ return (const char*) xbt_dict_get_or_null(sg_host_get_properties(host), name);
+}
+/**
+ * \brief Find a route between two hosts
+ *
+ * \param from where from
+ * \param to where to
+ * \param links [OUT] where to store the list of links (must exist, cannot be nullptr).
+ */
+void sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links)
+{
+ std::vector<simgrid::s4u::Link*> vlinks;
+ from->routeTo(to, &vlinks, nullptr);
+ for (auto link : vlinks)
+ xbt_dynar_push(links, &link);
+}
+/**
+ * \brief Find the latency of the route between two hosts
+ *
+ * \param from where from
+ * \param to where to
+ */
+double sg_host_route_latency(sg_host_t from, sg_host_t to)
+{
+ std::vector<simgrid::s4u::Link*> vlinks;
+ double res = 0;
+ from->routeTo(to, &vlinks, &res);
+ return res;
+}
+/**
+ * \brief Find the bandwitdh of the route between two hosts
+ *
+ * \param from where from
+ * \param to where to
+ */
+double sg_host_route_bandwidth(sg_host_t from, sg_host_t to)
+{
+ double min_bandwidth = -1.0;
+
+ std::vector<simgrid::s4u::Link*> vlinks;
+ from->routeTo(to, &vlinks, nullptr);
+ for (auto link : vlinks) {
+ double bandwidth = link->bandwidth();
+ if (bandwidth < min_bandwidth || min_bandwidth < 0.0)
+ min_bandwidth = bandwidth;
+ }
+ return min_bandwidth;
+}
+
+/** @brief Displays debugging information about a host */
+void sg_host_dump(sg_host_t host)
+{
+ xbt_dict_t props;
+ xbt_dict_cursor_t cursor=nullptr;
+ char *key,*data;
+
+ XBT_INFO("Displaying host %s", host->cname());
+ XBT_INFO(" - speed: %.0f", host->speed());
+ XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host));
+ props = host->properties();
+
+ if (!xbt_dict_is_empty(props)){
+ XBT_INFO(" - properties:");
+
+ xbt_dict_foreach(props,cursor,key,data) {
+ XBT_INFO(" %s->%s",key,data);
+ }
+ }
+}
+} // extern "C"
