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_kernel, surf,
12 "Logging specific to SURF (kernel)");
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;
24 const char *surf_action_state_names[6] = {
26 "SURF_ACTION_RUNNING",
29 "SURF_ACTION_TO_FREE",
30 "SURF_ACTION_NOT_IN_THE_SYSTEM"
33 double generic_maxmin_share_resources(xbt_swag_t running_actions,
36 return generic_maxmin_share_resources2(running_actions, offset,
40 double generic_maxmin_share_resources2(xbt_swag_t running_actions,
44 surf_action_t action = NULL;
47 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
51 xbt_swag_foreach(action, running_actions) {
52 value = lmm_variable_getvalue(VARIABLE(action));
53 if ((value > 0) || (action->max_duration >= 0))
61 min = action->remains / value;
62 if ((action->max_duration >= 0) && (action->max_duration < min))
63 min = action->max_duration;
65 min = action->max_duration;
68 for (action = xbt_swag_getNext(action, running_actions->offset);
70 action = xbt_swag_getNext(action, running_actions->offset)) {
71 value = lmm_variable_getvalue(VARIABLE(action));
73 value = action->remains / value;
77 if ((action->max_duration >= 0) && (action->max_duration < min))
78 min = action->max_duration;
84 e_surf_action_state_t surf_action_get_state(surf_action_t action)
86 surf_action_state_t action_state =
87 &(action->resource_type->common_public->states);
89 if (action->state_set == action_state->ready_action_set)
90 return SURF_ACTION_READY;
91 if (action->state_set == action_state->running_action_set)
92 return SURF_ACTION_RUNNING;
93 if (action->state_set == action_state->failed_action_set)
94 return SURF_ACTION_FAILED;
95 if (action->state_set == action_state->done_action_set)
96 return SURF_ACTION_DONE;
97 return SURF_ACTION_NOT_IN_THE_SYSTEM;
100 double surf_action_get_start_time(surf_action_t action) {
101 return action->start;
104 double surf_action_get_finish_time(surf_action_t action) {
105 return action->finish;
108 void surf_action_free(surf_action_t * action)
110 (*action)->resource_type->common_public->action_cancel(*action);
115 void surf_action_change_state(surf_action_t action,
116 e_surf_action_state_t state)
118 surf_action_state_t action_state =
119 &(action->resource_type->common_public->states);
120 XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
121 xbt_swag_remove(action, action->state_set);
123 if (state == SURF_ACTION_READY)
124 action->state_set = action_state->ready_action_set;
125 else if (state == SURF_ACTION_RUNNING)
126 action->state_set = action_state->running_action_set;
127 else if (state == SURF_ACTION_FAILED)
128 action->state_set = action_state->failed_action_set;
129 else if (state == SURF_ACTION_DONE)
130 action->state_set = action_state->done_action_set;
132 action->state_set = NULL;
134 if (action->state_set)
135 xbt_swag_insert(action, action->state_set);
139 void surf_action_set_data(surf_action_t action,
145 void surf_init(int *argc, char **argv)
150 xbt_init(argc, argv);
152 const char *initial_path = "./";
153 surf_path = xbt_dynar_new(sizeof(char*), NULL);
154 xbt_dynar_push(surf_path,&initial_path);
156 for (i=1; i<*argc; i++) {
157 if (!strncmp(argv[i],"--surf-path=",strlen("--surf-path="))) {
158 opt=strchr(argv[i],'=');
160 xbt_dynar_push(surf_path,&opt);
161 /*remove this from argv*/
162 for (j=i+1; j<*argc; j++) {
167 i--; /* compensate effect of next loop incrementation */
172 resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
174 history = tmgr_history_new();
176 maxmin_system = lmm_system_new();
179 static char* path_name = NULL;
180 FILE *surf_fopen(const char *name, const char *mode)
185 int path_name_len = 0; /* don't count '\0' */
187 xbt_assert0(name, "Need a non-NULL file name");
189 xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen");
191 if (name[0] == '/') { /* don't mess with absolute file names */
192 return fopen(name,mode);
194 } else { /* search relative files in the path */
197 path_name_len = strlen(name);
198 path_name=xbt_new0(char,path_name_len+1);
201 xbt_dynar_foreach(surf_path,i,path) {
202 if(path_name_len < strlen(path)+strlen(name)+1) {
203 path_name_len = strlen(path)+strlen(name)+1; /* plus '/' */
204 path_name=xbt_realloc(path_name,path_name_len+1);
206 sprintf(path_name,"%s/%s",path, name);
207 file = fopen(path_name,mode);
208 if (file) return file;
217 surf_resource_t resource = NULL;
219 xbt_dynar_foreach(resource_list, i, resource) {
220 resource->common_private->finalize();
224 lmm_system_free(maxmin_system);
225 maxmin_system = NULL;
228 tmgr_history_free(history);
232 xbt_dynar_free(&resource_list);
235 xbt_dynar_free(&surf_path);
238 surf_parse_lex_destroy();
246 double surf_solve(void)
248 static int first_run = 1;
251 double next_event_date = -1.0;
252 double resource_next_action_end = -1.0;
254 surf_resource_object_t resource_obj = NULL;
255 surf_resource_t resource = NULL;
256 tmgr_trace_event_t event = NULL;
260 DEBUG0("First Run! Let's \"purge\" events and put resources in the right state");
261 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
262 if (next_event_date > NOW)
265 tmgr_history_get_next_event_leq(history, next_event_date,
267 (void **) &resource_obj))) {
268 resource_obj->resource->common_private->
269 update_resource_state(resource_obj, event, value);
272 xbt_dynar_foreach(resource_list, i, resource) {
273 resource->common_private->update_actions_state(NOW, 0.0);
281 DEBUG0("Looking for next action end");
282 xbt_dynar_foreach(resource_list, i, resource) {
283 resource_next_action_end =
284 resource->common_private->share_resources(NOW);
285 DEBUG2("Resource [%s] : next action end = %f",resource->common_public->name,
286 resource_next_action_end);
287 if (((min < 0.0) || (resource_next_action_end < min))
288 && (resource_next_action_end >= 0.0))
289 min = resource_next_action_end;
291 DEBUG1("Next action end : %f", min);
296 DEBUG0("Looking for next event");
297 while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
298 DEBUG1("Next event : %f",next_event_date);
299 if (next_event_date > NOW + min)
301 DEBUG0("Updating resources");
303 tmgr_history_get_next_event_leq(history, next_event_date,
305 (void **) &resource_obj))) {
306 if (resource_obj->resource->common_private->
307 resource_used(resource_obj)) {
308 min = next_event_date - NOW;
309 DEBUG1("This event will modify resource state. Next event set to %f", min);
311 /* update state of resource_obj according to new value. Does not touch lmm.
312 It will be modified if needed when updating actions */
313 resource_obj->resource->common_private->
314 update_resource_state(resource_obj, event, value);
318 DEBUG1("Duration set to %f", min);
320 xbt_dynar_foreach(resource_list, i, resource) {
321 resource->common_private->update_actions_state(NOW, min);
329 double surf_get_clock(void)