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prevent stings to be destroyed (dumb me)
[simgrid.git] / src / simdag / sd_workstation.cpp
index 06eb2bd..44e2a0b 100644 (file)
 /* 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 "src/surf/host_interface.hpp"
-#include "src/simdag/simdag_private.h"
-#include "simgrid/simdag.h"
-#include <simgrid/s4u/host.hpp>
-#include "xbt/dict.h"
-#include "xbt/lib.h"
-#include "xbt/sysdep.h"
-#include "surf/surf.h"
-#include "simgrid/msg.h" //FIXME: why?
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_workstation, sd,
-                                "Logging specific to SimDag (workstation)");
-
-/* Creates a workstation and registers it in SD.
- */
-SD_workstation_t __SD_workstation_create(const char *name)
-{
-
-  SD_workstation_priv_t workstation;
-
-  workstation = xbt_new(s_SD_workstation_priv_t, 1);
-  workstation->access_mode = SD_WORKSTATION_SHARED_ACCESS;      /* default mode is shared */
-  workstation->task_fifo = NULL;
-  workstation->current_task = NULL;
-
-  sg_host_t sg_host = sg_host_by_name(name);
-  sg_host_sd_set(sg_host,workstation);
-  return sg_host;
-}
-
-/* Creates a storage and registers it in SD.
- */
-SD_storage_t __SD_storage_create(void *surf_storage, void *data)
-{
+#include "simgrid/s4u/host.hpp"
 
-  SD_storage_priv_t storage;
-  const char *name;
-
-  storage = xbt_new(s_SD_storage_priv_t, 1);
-  storage->data = data;     /* user data */
-  name = surf_resource_name((surf_cpp_resource_t)surf_storage);
-  storage->host = (const char*)surf_storage_get_host( (surf_resource_t )surf_storage_resource_by_name(name));
-  xbt_lib_set(storage_lib,name, SD_STORAGE_LEVEL, storage);
-  return xbt_lib_get_elm_or_null(storage_lib, name);
-}
-
-/* Destroys a storage.
- */
-void __SD_storage_destroy(void *storage)
-{
-  SD_storage_priv_t s;
-
-  s = (SD_storage_priv_t) storage;
-  xbt_free(s);
-}
-
-/**
- * \brief Returns a workstation given its name
- *
- * If there is no such workstation, the function returns \c NULL.
- *
- * \param name workstation name
- * \return the workstation, or \c NULL if there is no such workstation
- */
-SD_workstation_t SD_workstation_get_by_name(const char *name)
-{
-  return sg_host_by_name(name);
-}
-
-/**
- * \brief Returns the workstation list
- *
- * Use SD_workstation_get_number() to know the array size.
- * 
- * \return an array of \ref SD_workstation_t containing all workstations
- * \remark The workstation order in the returned array is generally different from the workstation creation/declaration order in the XML platform (we use a hash table internally).
- * \see SD_workstation_get_number()
- */
-const SD_workstation_t *SD_workstation_get_list(void) {
-  xbt_assert(SD_workstation_get_count() > 0, "There is no workstation!");
-
-  if (sd_global->workstation_list == NULL)     /* this is the first time the function is called */
-    sd_global->workstation_list = (SD_workstation_t*)xbt_dynar_to_array(sg_hosts_as_dynar());
-
-  return sd_global->workstation_list;
-}
-
-/**
- * \brief Returns the number of workstations
- *
- * \return the number of existing workstations
- * \see SD_workstation_get_list()
- */
-int SD_workstation_get_count(void)
-{
-  return sg_host_count();
-}
-
-/**
- * \brief Returns the user data of a workstation
- *
- * \param workstation a workstation
- * \return the user data associated with this workstation (can be \c NULL)
- * \see SD_workstation_set_data()
- */
-void *SD_workstation_get_data(SD_workstation_t workstation)
-{
-  return sg_host_user(workstation);
-}
-
-/**
- * \brief Sets the user data of a workstation
- *
- * The new data can be \c NULL. The old data should have been freed first
- * if it was not \c NULL.
- *
- * \param workstation a workstation
- * \param data the new data you want to associate with this workstation
- * \see SD_workstation_get_data()
- */
-void SD_workstation_set_data(SD_workstation_t workstation, void *data)
-{
-       sg_host_user_set(workstation, data);
-}
-
-/**
- * \brief Returns the name of a workstation
- *
- * \param workstation a workstation
- * \return the name of this workstation (cannot be \c NULL)
- */
-const char *SD_workstation_get_name(SD_workstation_t workstation)
-{
-  return sg_host_get_name(workstation);
-}
-
-/**
- * \brief Returns the value of a given workstation property
- *
- * \param ws a workstation
- * \param name a property name
- * \return value of a property (or NULL if property not set)
- */
-const char *SD_workstation_get_property_value(SD_workstation_t ws,
-                                              const char *name)
-{
-  return (const char*) xbt_dict_get_or_null(SD_workstation_get_properties(ws), name);
-}
-
-
-/**
- * \brief Returns a #xbt_dict_t consisting of the list of properties assigned to this workstation
- *
- * \param workstation a workstation
- * \return the dictionary containing the properties associated with the workstation
- */
-xbt_dict_t SD_workstation_get_properties(SD_workstation_t workstation)
-{
-  return sg_host_get_properties(workstation);
-}
-
-
-/** @brief Displays debugging informations about a workstation */
-void SD_workstation_dump(SD_workstation_t ws)
-{
-  xbt_dict_t props;
-  xbt_dict_cursor_t cursor=NULL;
-  char *key,*data;
-  SD_task_t task = NULL;
-  
-  XBT_INFO("Displaying workstation %s", SD_workstation_get_name(ws));
-  XBT_INFO("  - power: %.0f", SD_workstation_get_power(ws));
-  XBT_INFO("  - available power: %.2f", SD_workstation_get_available_power(ws));
-  switch (sg_host_sd(ws)->access_mode){
-  case SD_WORKSTATION_SHARED_ACCESS:
-      XBT_INFO("  - access mode: Space shared");
-      break;
-  case SD_WORKSTATION_SEQUENTIAL_ACCESS:
-      XBT_INFO("  - access mode: Exclusive");
-    task = SD_workstation_get_current_task(ws);
-    if(task)
-      XBT_INFO("    current running task: %s",
-               SD_task_get_name(task));
-    else
-      XBT_INFO("    no task running");
-      break;
-  default: break;
-  }
-  props = SD_workstation_get_properties(ws);
-  
-  if (!xbt_dict_is_empty(props)){
-    XBT_INFO("  - properties:");
-
-    xbt_dict_foreach(props,cursor,key,data) {
-      XBT_INFO("    %s->%s",key,data);
-    }
-  }
-}
+#include "simdag_private.hpp"
+#include "src/surf/HostImpl.hpp"
+#include "surf/surf.h"
 
-/**
- * \brief Returns the route between two workstations
+/** @brief Returns the route between two workstations
  *
  * Use SD_route_get_size() to know the array size.
  *
- * \param src a workstation
- * \param dst another workstation
- * \return a new array of \ref SD_link_t representing the route between these two workstations
+ * \param src a host
+ * \param dst another host
+ * \return an array of the \ref SD_link_t composing the route
  * \see SD_route_get_size(), SD_link_t
  */
-const SD_link_t *SD_route_get_list(SD_workstation_t src,
-                                   SD_workstation_t dst)
+SD_link_t *SD_route_get_list(sg_host_t src, sg_host_t dst)
 {
-  xbt_dynar_t surf_route;
-  void *surf_link;
-  unsigned int cpt;
+  std::vector<Link*> *route = new std::vector<Link*>();
+  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
 
-  if (sd_global->recyclable_route == NULL) {
-    /* first run */
-    sd_global->recyclable_route = xbt_new(SD_link_t, SD_link_get_count());
+  int cpt=0;
+  SD_link_t *list = xbt_new(SD_link_t, route->size());
+  for (auto link : *route){
+    list[cpt] = link;
+    cpt++;
   }
-
-  surf_route = surf_host_model_get_route((surf_host_model_t)surf_host_model, src, dst);
-
-  xbt_dynar_foreach(surf_route, cpt, surf_link) {
-    sd_global->recyclable_route[cpt] = (SD_link_t)surf_link;
-  }
-  return sd_global->recyclable_route;
+  delete route;
+  return list;
 }
 
 /**
@@ -241,58 +42,13 @@ const SD_link_t *SD_route_get_list(SD_workstation_t src,
  * \return the number of links on the route between these two workstations
  * \see SD_route_get_list()
  */
-int SD_route_get_size(SD_workstation_t src, SD_workstation_t dst)
-{
-  return xbt_dynar_length(surf_host_model_get_route(
-                   (surf_host_model_t)surf_host_model, src, dst));
-}
-
-/**
- * \brief Returns the total power of a workstation
- *
- * \param workstation a workstation
- * \return the total power of this workstation
- * \see SD_workstation_get_available_power()
- */
-double SD_workstation_get_power(SD_workstation_t workstation)
-{
-  return workstation->speed();
-}
-/**
- * \brief Returns the amount of cores of a workstation
- *
- * \param workstation a workstation
- * \return the amount of cores of this workstation
- */
-int SD_workstation_get_cores(SD_workstation_t workstation) {
-  return workstation->core_count();
-}
-
-/**
- * \brief Returns the proportion of available power in a workstation
- *
- * \param workstation a workstation
- * \return the proportion of power currently available in this workstation (normally a number between 0 and 1)
- * \see SD_workstation_get_power()
- */
-double SD_workstation_get_available_power(SD_workstation_t workstation)
-{
-  return surf_host_get_available_speed(workstation);
-}
-
-/**
- * \brief Returns an approximative estimated time for the given computation amount on a workstation
- *
- * \param workstation a workstation
- * \param flops_amount the computation amount you want to evaluate (in flops)
- * \return an approximative estimated computation time for the given computation amount on this workstation (in seconds)
- */
-double SD_workstation_get_computation_time(SD_workstation_t workstation,
-                                           double flops_amount)
+int SD_route_get_size(sg_host_t src, sg_host_t dst)
 {
-  xbt_assert(flops_amount >= 0,
-              "flops_amount must be greater than or equal to zero");
-  return flops_amount / SD_workstation_get_power(workstation);
+  std::vector<Link*> *route = new std::vector<Link*>();
+  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
+  int size = route->size();
+  delete route;
+  return size;
 }
 
 /**
@@ -303,13 +59,12 @@ double SD_workstation_get_computation_time(SD_workstation_t workstation,
  * \return the latency of the route between the two workstations (in seconds)
  * \see SD_route_get_bandwidth()
  */
-double SD_route_get_latency(SD_workstation_t src, SD_workstation_t dst)
+double SD_route_get_latency(sg_host_t src, sg_host_t dst)
 {
-  xbt_dynar_t route = NULL;
-  double latency;
-
-  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard,
-                                    &route, &latency);
+  double latency = 0;
+  std::vector<Link*> *route = new std::vector<Link*>();
+  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, &latency);
+  delete route;
 
   return latency;
 }
@@ -320,224 +75,22 @@ double SD_route_get_latency(SD_workstation_t src, SD_workstation_t dst)
  *
  * \param src the first workstation
  * \param dst the second workstation
- * \return the bandwidth of the route between the two workstations
- * (in bytes/second)
+ * \return the bandwidth of the route between the two workstations (in bytes/second)
  * \see SD_route_get_latency()
  */
-double SD_route_get_bandwidth(SD_workstation_t src, SD_workstation_t dst)
+double SD_route_get_bandwidth(sg_host_t src, sg_host_t dst)
 {
+  double min_bandwidth = -1.0;
 
-  const SD_link_t *links;
-  int nb_links;
-  double bandwidth;
-  double min_bandwidth;
-  int i;
+  std::vector<Link*> *route = new std::vector<Link*>();
+  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, route, nullptr);
 
-  links = SD_route_get_list(src, dst);
-  nb_links = SD_route_get_size(src, dst);
-  min_bandwidth = -1.0;
-
-  for (i = 0; i < nb_links; i++) {
-    bandwidth = SD_link_get_bandwidth(links[i]);
-    if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
+  for (auto link : *route) {
+    double bandwidth = sg_link_bandwidth(link);
+    if (bandwidth < min_bandwidth || min_bandwidth < 0.0)
       min_bandwidth = bandwidth;
   }
+  delete route;
 
   return min_bandwidth;
 }
-
-/**
- * \brief Returns an approximative estimated time for the given
- * communication amount between two workstations
- *
- * \param src the first workstation
- * \param dst the second workstation
- * \param bytes_amount the communication amount you want to evaluate (in bytes)
- * \return an approximative estimated communication time for the given bytes amount
- * between the workstations (in seconds)
- */
-double SD_route_get_communication_time(SD_workstation_t src,
-                                       SD_workstation_t dst,
-                                       double bytes_amount)
-{
-
-
-  /* total time = latency + transmission time of the slowest link
-     transmission time of a link = communication amount / link bandwidth */
-
-  const SD_link_t *links;
-  xbt_dynar_t route = NULL;
-  int nb_links;
-  double bandwidth, min_bandwidth;
-  double latency;
-  int i;
-
-  xbt_assert(bytes_amount >= 0, "bytes_amount must be greater than or equal to zero");
-
-
-  if (bytes_amount == 0.0)
-    return 0.0;
-
-  routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard,
-                                    &route, &latency);
-
-  links = SD_route_get_list(src, dst);
-  nb_links = SD_route_get_size(src, dst);
-  min_bandwidth = -1.0;
-
-  for (i = 0; i < nb_links; i++) {
-    bandwidth = SD_link_get_bandwidth(links[i]);
-    if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
-      min_bandwidth = bandwidth;
-  }
-
-  return latency + (bytes_amount / min_bandwidth);
-}
-
-/**
- * \brief Returns the access mode of this workstation.
- *
- * \param workstation a workstation
- * \return the access mode for the tasks running on this workstation:
- * SD_WORKSTATION_SHARED_ACCESS or SD_WORKSTATION_SEQUENTIAL_ACCESS
- *
- * \see SD_workstation_set_access_mode(), e_SD_workstation_access_mode_t
- */
-e_SD_workstation_access_mode_t
-SD_workstation_get_access_mode(SD_workstation_t workstation)
-{
-  return sg_host_sd(workstation)->access_mode;
-}
-
-/**
- * \brief Sets the access mode for the tasks that will be executed on a workstation
- *
- * By default, a workstation model is shared, i.e. several tasks
- * can be executed at the same time on a workstation. The CPU power of
- * the workstation is shared between the running tasks on the workstation.
- * In sequential mode, only one task can use the workstation, and the other
- * tasks wait in a FIFO.
- *
- * \param workstation a workstation
- * \param access_mode the access mode you want to set to this workstation:
- * SD_WORKSTATION_SHARED_ACCESS or SD_WORKSTATION_SEQUENTIAL_ACCESS
- *
- * \see SD_workstation_get_access_mode(), e_SD_workstation_access_mode_t
- */
-void SD_workstation_set_access_mode(SD_workstation_t workstation,
-                                    e_SD_workstation_access_mode_t
-                                    access_mode)
-{
-  xbt_assert(access_mode != SD_WORKSTATION_SEQUENTIAL_ACCESS ||
-             access_mode != SD_WORKSTATION_SHARED_ACCESS,
-             "Trying to set an invalid access mode");
-
-  if (access_mode == sg_host_sd(workstation)->access_mode) {
-    return;                     // nothing is changed
-  }
-
-  sg_host_sd(workstation)->access_mode = access_mode;
-
-  if (access_mode == SD_WORKSTATION_SHARED_ACCESS) {
-    xbt_fifo_free(sg_host_sd(workstation)->task_fifo);
-    sg_host_sd(workstation)->task_fifo = NULL;
-  } else {
-         sg_host_sd(workstation)->task_fifo = xbt_fifo_new();
-  }
-}
-
-/**
- * \brief Return the list of mounted storages on a workstation.
- *
- * \param workstation a workstation
- * \return a dynar containing all mounted storages on the workstation
- */
-xbt_dict_t SD_workstation_get_mounted_storage_list(SD_workstation_t workstation){
-  return workstation->extension<simgrid::surf::Host>()->getMountedStorageList();
-}
-
-/**
- * \brief Return the list of mounted storages on a workstation.
- *
- * \param workstation a workstation
- * \return a dynar containing all mounted storages on the workstation
- */
-xbt_dynar_t SD_workstation_get_attached_storage_list(SD_workstation_t workstation){
-  return surf_host_get_attached_storage_list(workstation);
-}
-
-/**
- * \brief Returns the host name the storage is attached to
- *
- * This functions checks whether a storage is a valid pointer or not and return its name.
- */
-const char *SD_storage_get_host(msg_storage_t storage) {
-  xbt_assert((storage != NULL), "Invalid parameters");
-  SD_storage_priv_t priv = SD_storage_priv(storage);
-  return priv->host;
-}
-
-/* Returns whether a task can start now on a workstation*/
-/*
-  int __SD_workstation_can_start(SD_workstation_t workstation, SD_task_t task) {
-  SD_CHECK_INIT_DONE();
-  xbt_assert(workstation != NULL && task != NULL, "Invalid parameter");
-
-  return !__SD_workstation_is_busy(workstation) &&
-  (xbt_fifo_size(workstation->task_fifo) == 0) || xbt_fifo_get_first_item(workstation->task_fifo) == task);
-  }
-*/
-
-/* Returns whether a workstation is busy. A workstation is busy is it is
- * in sequential mode and a task is running on it or the fifo is not empty.
- */
-int __SD_workstation_is_busy(SD_workstation_t workstation)
-{
-  XBT_DEBUG
-      ("Workstation '%s' access mode: '%s', current task: %s, fifo size: %d",
-       SD_workstation_get_name(workstation),
-       (sg_host_sd(workstation)->access_mode ==
-        SD_WORKSTATION_SHARED_ACCESS) ? "SHARED" : "FIFO",
-       (sg_host_sd(workstation)->current_task ?
-        SD_task_get_name(sg_host_sd(workstation)->current_task)
-        : "none"),
-       (sg_host_sd(workstation)->task_fifo ? xbt_fifo_size(sg_host_sd(workstation)->task_fifo) :
-        0));
-
-  return sg_host_sd(workstation)->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS &&
-      (sg_host_sd(workstation)->current_task != NULL
-       || xbt_fifo_size(sg_host_sd(workstation)->task_fifo) > 0);
-}
-
-/* Destroys a workstation.
- */
-void __SD_workstation_destroy(void *workstation)
-{
-
-  if (workstation==NULL)
-         return;
-  SD_workstation_priv_t w;
-
-  /* workstation->surf_workstation is freed by surf_exit and workstation->data is freed by the user */
-
-  w = (SD_workstation_priv_t) workstation;
-
-  if (w->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS) {
-    xbt_fifo_free(w->task_fifo);
-  }
-  xbt_free(w);
-}
-
-/** 
- * \brief Returns the kind of the task currently running on a workstation
- * Only call this with sequential access mode set
- * \param workstation a workstation */
-SD_task_t SD_workstation_get_current_task(SD_workstation_t workstation)
-{
-  xbt_assert(sg_host_sd(workstation)->access_mode == SD_WORKSTATION_SEQUENTIAL_ACCESS,
-              "Access mode must be set to SD_WORKSTATION_SEQUENTIAL_ACCESS"
-              " to use this function");
-
-  return (sg_host_sd(workstation)->current_task);
-}
-