3 /* Copyright (c) 2004 Arnaud Legrand. 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 "surf_private.h"
9 #include "xbt/module.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_main, surf,
12 "Logging specific to the SURF maxmin module");
14 typedef struct surf_resource_object {
15 surf_resource_t resource;
16 } s_surf_resource_object_t, *surf_resource_object_t;
18 static double NOW = 0;
20 xbt_dynar_t resource_list = NULL;
21 tmgr_history_t history = NULL;
22 lmm_system_t maxmin_system = NULL;
23 xbt_dynar_t surf_path = NULL;
25 double generic_maxmin_share_resources(xbt_swag_t running_actions,
28 return generic_maxmin_share_resources2(running_actions, offset,
32 double generic_maxmin_share_resources2(xbt_swag_t running_actions,
36 surf_action_t action = NULL;
39 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
43 xbt_swag_foreach(action, running_actions) {
44 value = lmm_variable_getvalue(VARIABLE(action));
45 if ((value > 0) || (action->max_duration >= 0))
53 min = action->remains / value;
54 if ((action->max_duration >= 0) && (action->max_duration < min))
55 min = action->max_duration;
57 min = action->max_duration;
60 for (action = xbt_swag_getNext(action, running_actions->offset);
62 action = xbt_swag_getNext(action, running_actions->offset)) {
63 value = lmm_variable_getvalue(VARIABLE(action));
65 value = action->remains / value;
69 if ((action->max_duration >= 0) && (action->max_duration < min))
70 min = action->max_duration;
76 e_surf_action_state_t surf_action_get_state(surf_action_t action)
78 surf_action_state_t action_state =
79 &(action->resource_type->common_public->states);
81 if (action->state_set == action_state->ready_action_set)
82 return SURF_ACTION_READY;
83 if (action->state_set == action_state->running_action_set)
84 return SURF_ACTION_RUNNING;
85 if (action->state_set == action_state->failed_action_set)
86 return SURF_ACTION_FAILED;
87 if (action->state_set == action_state->done_action_set)
88 return SURF_ACTION_DONE;
89 return SURF_ACTION_NOT_IN_THE_SYSTEM;
92 void surf_action_free(surf_action_t * action)
94 (*action)->resource_type->common_public->action_cancel(*action);
99 void surf_action_change_state(surf_action_t action,
100 e_surf_action_state_t state)
102 surf_action_state_t action_state =
103 &(action->resource_type->common_public->states);
104 XBT_IN2("(%p,%s)", action,
105 (((state==SURF_ACTION_READY)?("SURF_ACTION_READY"):
106 ((state==SURF_ACTION_RUNNING)?("SURF_ACTION_RUNNING"):
107 ((state==SURF_ACTION_FAILED)?("SURF_ACTION_FAILED"):
108 ((state==SURF_ACTION_DONE)?("SURF_ACTION_DONE"):
109 ((state==SURF_ACTION_TO_FREE)?("SURF_ACTION_TO_FREE"):
110 ((state==SURF_ACTION_NOT_IN_THE_SYSTEM)?("SURF_ACTION_NOT_IN_THE_SYSTEM"):
112 xbt_swag_remove(action, action->state_set);
114 if (state == SURF_ACTION_READY)
115 action->state_set = action_state->ready_action_set;
116 else if (state == SURF_ACTION_RUNNING)
117 action->state_set = action_state->running_action_set;
118 else if (state == SURF_ACTION_FAILED)
119 action->state_set = action_state->failed_action_set;
120 else if (state == SURF_ACTION_DONE)
121 action->state_set = action_state->done_action_set;
123 action->state_set = NULL;
125 if (action->state_set)
126 xbt_swag_insert(action, action->state_set);
130 void surf_action_set_data(surf_action_t action,
136 void surf_init(int *argc, char **argv)
141 xbt_init(argc, argv);
143 const char *initial_path = "./";
144 surf_path = xbt_dynar_new(sizeof(char*), NULL);
145 xbt_dynar_push(surf_path,&initial_path);
147 for (i=1; i<*argc; i++) {
148 if (!strncmp(argv[i],"--surf-path=",strlen("--surf-path="))) {
149 opt=strchr(argv[i],'=');
151 xbt_dynar_push(surf_path,&opt);
152 /*remove this from argv*/
153 for (j=i+1; j<*argc; j++) {
158 i--; /* compensate effect of next loop incrementation */
163 resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
165 history = tmgr_history_new();
167 maxmin_system = lmm_system_new();
170 static char* path_name = NULL;
171 FILE *surf_fopen(const char *name, const char *mode)
176 int path_name_len = 0; /* don't count '\0' */
178 xbt_assert0(name, "Need a non-NULL file name");
180 xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen");
182 if (name[0] == '/') { /* don't mess with absolute file names */
183 return fopen(name,mode);
185 } else { /* search relative files in the path */
188 path_name_len = strlen(name);
189 path_name=xbt_new0(char,path_name_len+1);
192 xbt_dynar_foreach(surf_path,i,path) {
193 if(path_name_len < strlen(path)+strlen(name)+1) {
194 path_name_len = strlen(path)+strlen(name)+1; /* plus '/' */
195 path_name=xbt_realloc(path_name,path_name_len+1);
197 sprintf(path_name,"%s/%s",path, name);
198 file = fopen(path_name,mode);
199 if (file) return file;
208 surf_resource_t resource = NULL;
210 xbt_dynar_foreach(resource_list, i, resource) {
211 resource->common_private->finalize();
215 lmm_system_free(maxmin_system);
216 maxmin_system = NULL;
219 tmgr_history_free(history);
223 xbt_dynar_free(&resource_list);
226 xbt_dynar_free(&surf_path);
229 surf_parse_lex_destroy();
237 double surf_solve(void)
239 static int first_run = 1;
242 double next_event_date = -1.0;
243 double resource_next_action_end = -1.0;
245 surf_resource_object_t resource_obj = NULL;
246 surf_resource_t resource = NULL;
247 tmgr_trace_event_t event = NULL;
251 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
252 if (next_event_date > NOW)
255 tmgr_history_get_next_event_leq(history, next_event_date,
257 (void **) &resource_obj))) {
258 resource_obj->resource->common_private->
259 update_resource_state(resource_obj, event, value);
262 xbt_dynar_foreach(resource_list, i, resource) {
263 resource->common_private->update_actions_state(NOW, 0.0);
271 xbt_dynar_foreach(resource_list, i, resource) {
272 resource_next_action_end =
273 resource->common_private->share_resources(NOW);
274 if (((min < 0.0) || (resource_next_action_end < min))
275 && (resource_next_action_end >= 0.0))
276 min = resource_next_action_end;
282 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
283 if (next_event_date > NOW + min)
286 tmgr_history_get_next_event_leq(history, next_event_date,
288 (void **) &resource_obj))) {
289 if (resource_obj->resource->common_private->
290 resource_used(resource_obj)) {
291 min = next_event_date - NOW;
293 /* update state of resource_obj according to new value. Does not touch lmm.
294 It will be modified if needed when updating actions */
295 resource_obj->resource->common_private->
296 update_resource_state(resource_obj, event, value);
301 xbt_dynar_foreach(resource_list, i, resource) {
302 resource->common_private->update_actions_state(NOW, min);
310 double surf_get_clock(void)