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Fix compilation warning for unused variables
[simgrid.git] / src / surf / storage.c
index e59d0c7..85fdb6d 100644 (file)
@@ -6,6 +6,7 @@
 
 #include "xbt/ex.h"
 #include "xbt/dict.h"
+#include "xbt/file_stat.h"
 #include "portable.h"
 #include "surf_private.h"
 #include "storage_private.h"
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
                                 "Logging specific to the SURF storage module");
 
+xbt_lib_t storage_lib;
+int ROUTING_STORAGE_LEVEL;      //Routing for storagelevel
+int ROUTING_STORAGE_HOST_LEVEL;
+int SURF_STORAGE_LEVEL;
+xbt_lib_t storage_type_lib;
+int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
+
+xbt_dynar_t mount_list = NULL;  /* temporary store of current mount storage */
+
 surf_model_t surf_storage_model = NULL;
 lmm_system_t storage_maxmin_system = NULL;
 static int storage_selective_update = 0;
@@ -23,38 +33,36 @@ static xbt_swag_t
 #define GENERIC_LMM_ACTION(action) action->generic_lmm_action
 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
 
-typedef enum {
-  READ = 0,
-  WRITE = 1,
-  DEFAULT = 2
-} STORAGE_execute_type_t;
-
 typedef struct surf_storage {
   s_surf_resource_t generic_resource;
   const char* type;
   const char* content; /*should be a dict */
 } s_surf_storage_t, *surf_storage_t;
 
+static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size);
 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state);
-static surf_action_t storage_action_sleep (void *storage, double duration);
-static surf_action_t storage_action_execute (void *storage, size_t size, STORAGE_execute_type_t type);
+static surf_action_t storage_action_execute (void *storage, size_t size, e_surf_action_storage_type_t type);
+
+static surf_action_t storage_action_stat(void *storage, surf_file_t stream)
+{
+  surf_action_t action = storage_action_execute(storage,0, STAT);
+  action->file = stream;
+  action->stat = stream->content->stat;
+  return action;
+}
 
-static surf_action_t storage_action_open(void *storage, const char* path, const char* mode)
+static surf_action_t storage_action_open(void *storage, const char* mount, const char* path, const char* mode)
 {
   XBT_DEBUG("\tOpen file '%s'",path);
-  char *storage_type_id = xbt_lib_get_or_null(
-      storage_lib,
-      ((storage_t)storage)->generic_resource.name,
-      ROUTING_STORAGE_LEVEL);
-  storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, storage_type_id,ROUTING_STORAGE_TYPE_LEVEL);
-  xbt_dict_t content_dict = storage_type->content;
-  content_t content = xbt_dict_get(content_dict,path);
+  xbt_dict_t content_dict = ((storage_t)storage)->content;
+  surf_stat_t content = xbt_dict_get(content_dict,path);
 
   surf_file_t file = xbt_new0(s_surf_file_t,1);
   file->name = xbt_strdup(path);
-  file->simdata = content;
+  file->content = content;
+  file->storage = mount;
 
-  surf_action_t action = storage_action_execute(storage,0, DEFAULT);
+  surf_action_t action = storage_action_execute(storage,0, OPEN);
   action->file = (void *)file;
   return action;
 }
@@ -63,9 +71,9 @@ static surf_action_t storage_action_close(void *storage, surf_file_t fp)
 {
   char *filename = fp->name;
   free(fp->name);
-  fp->simdata = NULL;
+  fp->content = NULL;
   xbt_free(fp);
-  surf_action_t action = storage_action_execute(storage,0, DEFAULT);
+  surf_action_t action = storage_action_execute(storage,0, CLOSE);
   XBT_DEBUG("\tClose file '%s'",filename);
   return action;
 }
@@ -73,39 +81,38 @@ static surf_action_t storage_action_close(void *storage, surf_file_t fp)
 static surf_action_t storage_action_read(void *storage, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 {
   char *filename = stream->name;
-  content_t content = (content_t)(stream->simdata);
-  XBT_DEBUG("\tRead file '%s' size '%Zu/%Zu'",filename,size,content->size);
-  if(size > content->size)
-    size = content->size;
+  surf_stat_t content = stream->content;
+  XBT_DEBUG("\tRead file '%s' size '%zu/%zu'",filename,size,content->stat.size);
+  if(size > content->stat.size)
+    size = content->stat.size;
   surf_action_t action = storage_action_execute(storage,size,READ);
-  action->read_write = size;
   return action;
 }
 
 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
 {
   char *filename = stream->name;
-  content_t content = (content_t)(stream->simdata);
-  XBT_DEBUG("\tWrite file '%s' size '%Zu/%Zu'",filename,size,content->size);
+  surf_stat_t content = stream->content;
+  XBT_DEBUG("\tWrite file '%s' size '%zu/%zu'",filename,size,content->stat.size);
+
+  // update file size
+  content->stat.size += size;
+  // update disk space
+  ((storage_t)storage)->used_size =+ size;
 
   surf_action_t action = storage_action_execute(storage,size,WRITE);
-  action->read_write = size;
-  content->size += size;
+  // if(used_size==size) {
+  //   storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
+  // }
   return action;
 }
 
-static surf_action_t storage_action_stat(void *storage, int fd, void* buf)
-{
-  THROW_UNIMPLEMENTED;
-  return NULL;
-}
-
-static surf_action_t storage_action_execute (void *storage, size_t size, STORAGE_execute_type_t type)
+static surf_action_t storage_action_execute (void *storage, size_t size, e_surf_action_storage_type_t type)
 {
   surf_action_storage_t action = NULL;
   storage_t STORAGE = storage;
 
-  XBT_IN("(%s,%Zu)", surf_resource_name(STORAGE), size);
+  XBT_IN("(%s,%zu)", surf_resource_name(STORAGE), size);
   action =
       surf_action_new(sizeof(s_surf_action_storage_t), size, surf_storage_model,
           STORAGE->state_current != SURF_RESOURCE_ON);
@@ -116,49 +123,30 @@ static surf_action_t storage_action_execute (void *storage, size_t size, STORAGE
   GENERIC_LMM_ACTION(action).variable =
       lmm_variable_new(storage_maxmin_system, action, 1.0, -1.0 , 3);
 
-  if(type == DEFAULT)
+  // Must be less than the max bandwidth for all actions
   lmm_expand(storage_maxmin_system, STORAGE->constraint,
              GENERIC_LMM_ACTION(action).variable, 1.0);
-  else if(type == READ)
+
+  switch(type) {
+  case OPEN:
+  case CLOSE:
+  case STAT:
+    break;
+  case READ:
     lmm_expand(storage_maxmin_system, STORAGE->constraint_read,
                GENERIC_LMM_ACTION(action).variable, 1.0);
-  else if(type == WRITE)
+    break;
+  case WRITE:
     lmm_expand(storage_maxmin_system, STORAGE->constraint_write,
                GENERIC_LMM_ACTION(action).variable, 1.0);
-  else xbt_die("storage_action_execute with type '%d'",(int) type);
-
-  XBT_OUT();
-  return (surf_action_t) action;
-}
-
-static surf_action_t storage_action_sleep (void *storage, double duration)
-{
-  surf_action_storage_t action = NULL;
-
-  if (duration > 0)
-    duration = MAX(duration, MAXMIN_PRECISION);
-
-  XBT_IN("(%s,%g)", surf_resource_name(storage), duration);
-  action = (surf_action_storage_t) storage_action_execute(storage, 1.0, DEFAULT);
-  GENERIC_ACTION(action).max_duration = duration;
-  GENERIC_LMM_ACTION(action).suspended = 2;
-  if (duration == NO_MAX_DURATION) {
-    /* Move to the *end* of the corresponding action set. This convention
-       is used to speed up update_resource_state  */
-    xbt_swag_remove(action, ((surf_action_t) action)->state_set);
-    ((surf_action_t) action)->state_set =
-        storage_running_action_set_that_does_not_need_being_checked;
-    xbt_swag_insert(action, ((surf_action_t) action)->state_set);
+    break;
   }
 
-  lmm_update_variable_weight(storage_maxmin_system,
-                             GENERIC_LMM_ACTION(action).variable, 0.0);
-
   XBT_OUT();
   return (surf_action_t) action;
 }
 
-static void* storage_create_resource(const char* id, const char* model,const char* type_id)
+static void* storage_create_resource(const char* id, const char* model,const char* type_id,const char* content_name)
 {
   storage_t storage = NULL;
 
@@ -169,19 +157,23 @@ static void* storage_create_resource(const char* id, const char* model,const cha
           surf_storage_model, id,NULL);
 
   storage->state_current = SURF_RESOURCE_ON;
+  storage->used_size = 0;
+  storage->size = 0;
 
   storage_type_t storage_type = xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
-  size_t Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
-  size_t Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
-  size_t Bconnexion   = atof(xbt_dict_get(storage_type->properties,"Bconnexion"));
-  XBT_INFO("Create resource with Bconnexion '%Zu' Bread '%Zu' Bwrite '%Zu'",Bconnexion,Bread,Bwrite);
-  storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnexion);
+  double Bread  = atof(xbt_dict_get(storage_type->properties,"Bread"));
+  double Bwrite = atof(xbt_dict_get(storage_type->properties,"Bwrite"));
+  double Bconnection   = atof(xbt_dict_get(storage_type->properties,"Bconnection"));
+  XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%ld'",Bconnection,Bread,Bwrite,storage_type->size);
+  storage->constraint       = lmm_constraint_new(storage_maxmin_system, storage, Bconnection);
   storage->constraint_read  = lmm_constraint_new(storage_maxmin_system, storage, Bread);
   storage->constraint_write = lmm_constraint_new(storage_maxmin_system, storage, Bwrite);
+  storage->content = parse_storage_content((char*)content_name,&(storage->used_size));
+  storage->size = storage_type->size;
 
   xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
 
-  XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tproperties '%p'\n\t\tBread '%Zu'\n",
+  XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tproperties '%p'\n\t\tBread '%f'\n",
       id,
       model,
       type_id,
@@ -209,12 +201,24 @@ static void storage_update_actions_state(double now, double delta)
   surf_action_storage_t action = NULL;
   surf_action_storage_t next_action = NULL;
   xbt_swag_t running_actions = surf_storage_model->states.running_action_set;
-  xbt_swag_foreach_safe(action, next_action, running_actions) {
 
+  // Update the disk usage
+//  foreach disk {
+//    rate = 0
+//    foreach write_action in disk {
+//      rate += value(variable(action))
+//     }
+//   used_size += delta * rate
+//  }
+  xbt_swag_foreach_safe(action, next_action, running_actions) {
     double_update(&(GENERIC_ACTION(action).remains),
                   lmm_variable_getvalue(GENERIC_LMM_ACTION(action).variable) * delta);
     if (GENERIC_LMM_ACTION(action).generic_action.max_duration != NO_MAX_DURATION)
       double_update(&(GENERIC_ACTION(action).max_duration), delta);
+    // if(remains>0 and weight(variable(action))>0 && used_size == size) {
+    // GENERIC_ACTION(action).finish = surf_get_clock();
+    // storage_action_state_set((surf_action_t) action, SURF_ACTION_FAILED);
+    // } else
     if ((GENERIC_ACTION(action).remains <= 0) &&
         (lmm_get_variable_weight(GENERIC_LMM_ACTION(action).variable) > 0)) {
       GENERIC_ACTION(action).finish = surf_get_clock();
@@ -233,9 +237,21 @@ static double storage_share_resources(double NOW)
 {
   XBT_DEBUG("storage_share_resources %f",NOW);
   s_surf_action_storage_t action;
-  return generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
+  double min_completion = generic_maxmin_share_resources(surf_storage_model->states.running_action_set,
       xbt_swag_offset(action, generic_lmm_action.variable),
       storage_maxmin_system, lmm_solve);
+  /*
+   foreach(disk) {
+      rate = 0
+      foreach write_action in disk {
+          rate += value(variable(action));
+      }
+      if(rate>0) {
+        min_completion = MIN(min_completion, (size-used_size)/rate);
+      }
+  }*/
+
+  return min_completion;
 }
 
 static int storage_resource_used(void *resource_id)
@@ -317,16 +333,24 @@ static void parse_storage_init(sg_platf_storage_cbarg_t storage)
                                     storage->type_id,
                                     ROUTING_STORAGE_TYPE_LEVEL);
   if(!stype) xbt_die("No storage type '%s'",storage->type_id);
-//  XBT_INFO("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tproperties '%p'\n",
-//      storage->id,
-//      ((storage_type_t) stype)->model,
-//      ((storage_type_t) stype)->type_id,
-//      ((storage_type_t) stype)->content,
-//      ((storage_type_t) stype)->properties);
-
- storage_create_resource(storage->id,
+
+  // if storage content is not specified use the content of storage_type if exist
+  if(!strcmp(storage->content,"") && strcmp(((storage_type_t) stype)->content,"")){
+    storage->content = ((storage_type_t) stype)->content;
+    XBT_DEBUG("For disk '%s' content is empty, use the content of storage type '%s'",storage->id,((storage_type_t) stype)->type_id);
+  }
+
+  XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s' \n\t\tmodel '%s' \n\t\tcontent '%s'\n\t\tproperties '%p'\n",
+      storage->id,
+      ((storage_type_t) stype)->model,
+      ((storage_type_t) stype)->type_id,
+      storage->content,
+      ((storage_type_t) stype)->properties);
+
+  storage_create_resource(storage->id,
      ((storage_type_t) stype)->model,
-     ((storage_type_t) stype)->type_id);
+     ((storage_type_t) stype)->type_id,
+     storage->content);
 }
 
 static void parse_mstorage_init(sg_platf_mstorage_cbarg_t mstorage)
@@ -399,3 +423,191 @@ void surf_storage_model_init_default(void)
 
   xbt_dynar_push(model_list, &surf_storage_model);
 }
+
+static void storage_parse_storage(sg_platf_storage_cbarg_t storage)
+{
+  xbt_assert(!xbt_lib_get_or_null(storage_lib, storage->id,ROUTING_STORAGE_LEVEL),
+               "Reading a storage, processing unit \"%s\" already exists", storage->id);
+
+  // Verification of an existing type_id
+#ifndef NDEBUG
+  void* storage_type = xbt_lib_get_or_null(storage_type_lib, storage->type_id,ROUTING_STORAGE_TYPE_LEVEL);
+#endif
+  xbt_assert(storage_type,"Reading a storage, type id \"%s\" does not exists", storage->type_id);
+
+  XBT_DEBUG("ROUTING Create a storage name '%s' with type_id '%s' and content '%s'",
+      storage->id,
+      storage->type_id,
+      storage->content);
+
+  xbt_lib_set(storage_lib,
+      storage->id,
+      ROUTING_STORAGE_LEVEL,
+      (void *) xbt_strdup(storage->type_id));
+}
+
+static void free_storage_content(void *p)
+{
+  surf_stat_t content = p;
+  free(content->stat.date);
+  free(content->stat.group);
+  free(content->stat.time);
+  free(content->stat.user);
+  free(content->stat.user_rights);
+  free(content);
+}
+
+static xbt_dict_t parse_storage_content(char *filename, unsigned long *used_size)
+{
+  *used_size = 0;
+  if ((!filename) || (strcmp(filename, "") == 0))
+    return NULL;
+
+  xbt_dict_t parse_content = xbt_dict_new_homogeneous(free_storage_content);
+  FILE *file = NULL;
+
+  file = surf_fopen(filename, "r");
+  xbt_assert(file != NULL, "Cannot open file '%s' (path=%s)", filename,
+              xbt_str_join(surf_path, ":"));
+
+  char *line = NULL;
+  size_t len = 0;
+  ssize_t read;
+  char user_rights[12];
+  char user[100];
+  char group[100];
+  char date[12];
+  char time[12];
+  char path[1024];
+  int nb;
+  long size;
+
+  surf_stat_t content;
+
+  while ((read = getline(&line, &len, file)) != -1) {
+    content = xbt_new0(s_surf_stat_t,1);
+    if(sscanf(line,"%s %d %s %s %ld %s %s %s",user_rights,&nb,user,group,&size,date,time,path)==8) {
+      content->stat.date = xbt_strdup(date);
+      content->stat.group = xbt_strdup(group);
+      content->stat.size = size;
+      content->stat.time = xbt_strdup(time);
+      content->stat.user = xbt_strdup(user);
+      content->stat.user_rights = xbt_strdup(user_rights);
+      *used_size += content->stat.size;
+      xbt_dict_set(parse_content,path,content,NULL);
+    } else {
+      xbt_die("Be sure of passing a good format for content file.\n");
+      // You can generate this kind of file with command line:
+      // find /path/you/want -type f -exec ls -l {} \; 2>/dev/null > ./content.txt
+    }
+  }
+  if (line)
+      free(line);
+  fclose(file);
+  return parse_content;
+}
+
+static void storage_parse_storage_type(sg_platf_storage_type_cbarg_t storage_type)
+{
+  xbt_assert(!xbt_lib_get_or_null(storage_type_lib, storage_type->id,ROUTING_STORAGE_TYPE_LEVEL),
+               "Reading a storage type, processing unit \"%s\" already exists", storage_type->id);
+
+  storage_type_t stype = xbt_new0(s_storage_type_t, 1);
+  stype->model = xbt_strdup(storage_type->model);
+  stype->properties = storage_type->properties;
+  stype->content = xbt_strdup(storage_type->content);
+  stype->type_id = xbt_strdup(storage_type->id);
+  stype->size = storage_type->size * 1000000000; /* storage_type->size is in Gbytes and stype->sizeis in bytes */
+
+  XBT_DEBUG("ROUTING Create a storage type id '%s' with model '%s' content '%s'",
+      stype->type_id,
+      stype->model,
+      storage_type->content);
+
+  xbt_lib_set(storage_type_lib,
+      stype->type_id,
+      ROUTING_STORAGE_TYPE_LEVEL,
+      (void *) stype);
+}
+static void storage_parse_mstorage(sg_platf_mstorage_cbarg_t mstorage)
+{
+  THROW_UNIMPLEMENTED;
+//  mount_t mnt = xbt_new0(s_mount_t, 1);
+//  mnt->id = xbt_strdup(mstorage->type_id);
+//  mnt->name = xbt_strdup(mstorage->name);
+//
+//  if(!mount_list){
+//    XBT_DEBUG("Creata a Mount list for %s",A_surfxml_host_id);
+//    mount_list = xbt_dynar_new(sizeof(char *), NULL);
+//  }
+//  xbt_dynar_push(mount_list,(void *) mnt);
+//  free(mnt->id);
+//  free(mnt->name);
+//  xbt_free(mnt);
+//  XBT_DEBUG("ROUTING Mount a storage name '%s' with type_id '%s'",mstorage->name, mstorage->id);
+}
+
+static void mount_free(void *p)
+{
+  mount_t mnt = p;
+  xbt_free(mnt->name);
+}
+
+static void storage_parse_mount(sg_platf_mount_cbarg_t mount)
+{
+  // Verification of an existing storage
+#ifndef NDEBUG
+  void* storage = xbt_lib_get_or_null(storage_lib, mount->id,ROUTING_STORAGE_LEVEL);
+#endif
+  xbt_assert(storage,"Disk id \"%s\" does not exists", mount->id);
+
+  XBT_DEBUG("ROUTING Mount '%s' on '%s'",mount->id, mount->name);
+
+  s_mount_t mnt;
+  mnt.id = surf_storage_resource_by_name(mount->id);
+  mnt.name = xbt_strdup(mount->name);
+
+  if(!mount_list){
+    XBT_DEBUG("Create a Mount list for %s",A_surfxml_host_id);
+    mount_list = xbt_dynar_new(sizeof(s_mount_t), mount_free);
+  }
+  xbt_dynar_push(mount_list,&mnt);
+}
+
+static XBT_INLINE void routing_storage_type_free(void *r)
+{
+  storage_type_t stype = r;
+  free(stype->model);
+  free(stype->type_id);
+  free(stype->content);
+  xbt_dict_free(&(stype->properties));
+  free(stype);
+}
+
+static XBT_INLINE void surf_storage_resource_free(void *r)
+{
+  // specific to storage
+  storage_t storage = r;
+  xbt_dict_free(&storage->content);
+  // generic resource
+  surf_resource_free(r);
+}
+
+static XBT_INLINE void routing_storage_host_free(void *r)
+{
+  xbt_dynar_t dyn = r;
+  xbt_dynar_free(&dyn);
+}
+
+void storage_register_callbacks() {
+
+  ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,xbt_free);
+  ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib,routing_storage_host_free);
+  ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib,routing_storage_type_free);
+  SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_resource_free);
+
+  sg_platf_storage_add_cb(storage_parse_storage);
+  sg_platf_mstorage_add_cb(storage_parse_mstorage);
+  sg_platf_storage_type_add_cb(storage_parse_storage_type);
+  sg_platf_mount_add_cb(storage_parse_mount);
+}