1 /* Authors: Arnaud Legrand */
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. */
6 #include "surf_private.h"
8 static xbt_heap_float_t NOW=0;
10 xbt_dynar_t resource_list = NULL;
11 tmgr_history_t history = NULL;
12 lmm_system_t maxmin_system = NULL;
14 e_surf_action_state_t surf_action_get_state(surf_action_t action)
16 surf_action_state_t action_state = &(action->resource_type->common_public->states);
18 if(action->state_set == action_state->ready_action_set)
19 return SURF_ACTION_READY;
20 if(action->state_set == action_state->running_action_set)
21 return SURF_ACTION_RUNNING;
22 if(action->state_set == action_state->failed_action_set)
23 return SURF_ACTION_FAILED;
24 if(action->state_set == action_state->done_action_set)
25 return SURF_ACTION_DONE;
26 return SURF_ACTION_NOT_IN_THE_SYSTEM;
29 void surf_action_free(surf_action_t * action)
31 (*action)->resource_type->common_public->action_cancel(*action);
36 void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
38 surf_action_state_t action_state = &(action->resource_type->common_public->states);
40 xbt_swag_remove(action, action->state_set);
42 if(state == SURF_ACTION_READY)
43 action->state_set = action_state->ready_action_set;
44 else if(state == SURF_ACTION_RUNNING)
45 action->state_set = action_state->running_action_set;
46 else if(state == SURF_ACTION_FAILED)
47 action->state_set = action_state->failed_action_set;
48 else if(state == SURF_ACTION_DONE)
49 action->state_set = action_state->done_action_set;
50 else action->state_set = NULL;
52 if(action->state_set) xbt_swag_insert(action, action->state_set);
57 if(!resource_list) resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
58 if(!history) history = tmgr_history_new();
59 if(!maxmin_system) maxmin_system = lmm_system_new();
62 void surf_finalize(void)
65 surf_resource_t resource = NULL;
67 xbt_dynar_foreach (resource_list,i,resource) {
68 resource->common_private->finalize();
72 lmm_system_free(maxmin_system);
76 tmgr_history_free(history);
79 if(resource_list) xbt_dynar_free(&resource_list);
84 xbt_heap_float_t surf_solve(void)
86 static int first_run = 1;
88 xbt_heap_float_t min = -1.0;
89 xbt_heap_float_t next_event_date = -1.0;
90 xbt_heap_float_t resource_next_action_end = -1.0;
91 xbt_maxmin_float_t value = -1.0;
92 surf_resource_object_t resource_obj = NULL;
93 surf_resource_t resource = NULL;
94 tmgr_trace_event_t event = NULL;
98 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
99 if(next_event_date > NOW) break;
100 while ((event = tmgr_history_get_next_event_leq(history, next_event_date,
101 &value, (void **) &resource_obj))) {
102 resource_obj->resource->common_private->update_resource_state(resource_obj,
106 xbt_dynar_foreach (resource_list,i,resource) {
107 resource->common_private->update_actions_state(NOW, 0.0);
115 xbt_dynar_foreach (resource_list,i,resource) {
116 resource_next_action_end = resource->common_private->share_resources(NOW);
117 if(((min<0.0) || (resource_next_action_end<min)) && (resource_next_action_end>=0.0))
118 min = resource_next_action_end;
121 if(min<0.0) return 0.0;
123 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
124 if(next_event_date > NOW+min) break;
125 while ((event=tmgr_history_get_next_event_leq(history, next_event_date,
126 &value, (void **) &resource_obj))) {
127 if(resource_obj->resource->common_private->resource_used(resource_obj)) {
128 min = next_event_date-NOW;
130 /* update state of resource_obj according to new value. Does not touch lmm.
131 It will be modified if needed when updating actions */
132 resource_obj->resource->common_private->update_resource_state(resource_obj,
138 xbt_dynar_foreach (resource_list,i,resource) {
139 resource->common_private->update_actions_state(NOW, min);
147 xbt_heap_float_t surf_get_clock(void)