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 "surf/random_mgr.h"
14 typedef struct surf_action_network_Constant {
15 s_surf_action_t generic_action;
19 } s_surf_action_network_Constant_t, *surf_action_network_Constant_t;
21 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
22 static random_data_t random_latency = NULL;
23 static int host_number = 0;
25 static void count_hosts(void)
30 static void define_callbacks(const char *file)
32 /* Figuring out the network links */
33 surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
36 static int resource_used(void *resource_id)
41 static int action_unref(surf_action_t action)
44 if (!action->refcount) {
45 xbt_swag_remove(action, action->state_set);
52 static void action_cancel(surf_action_t action)
57 static void action_recycle(surf_action_t action)
62 static double action_get_remains(surf_action_t action)
64 return action->remains;
67 static double share_resources(double now)
69 surf_action_network_Constant_t action = NULL;
70 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
73 xbt_swag_foreach(action, running_actions) {
74 if (action->latency > 0) {
76 min = action->latency;
77 else if (action->latency < min)
78 min = action->latency;
85 static void update_actions_state(double now, double delta)
87 surf_action_network_Constant_t action = NULL;
88 surf_action_network_Constant_t next_action = NULL;
89 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
91 xbt_swag_foreach_safe(action, next_action, running_actions) {
92 if (action->latency > 0) {
93 if (action->latency > delta) {
94 double_update(&(action->latency), delta);
96 action->latency = 0.0;
99 double_update(&(action->generic_action.remains),
100 action->generic_action.cost * delta / action->lat_init);
101 if (action->generic_action.max_duration != NO_MAX_DURATION)
102 double_update(&(action->generic_action.max_duration), delta);
104 if (action->generic_action.remains <= 0) {
105 action->generic_action.finish = surf_get_clock();
106 surf_network_model->action_state_set((surf_action_t) action,
108 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
109 && (action->generic_action.max_duration <= 0)) {
110 action->generic_action.finish = surf_get_clock();
111 surf_network_model->action_state_set((surf_action_t) action,
117 static void update_resource_state(void *id,
118 tmgr_trace_event_t event_type,
119 double value, double time)
124 static surf_action_t communicate(const char *src_name, const char *dst_name,
125 int src, int dst, double size, double rate)
127 surf_action_network_Constant_t action = NULL;
129 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
132 surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
133 surf_network_model, 0);
135 action->suspended = 0;
137 action->latency = 1; //random_generate(random_latency);
138 action->lat_init = action->latency;
140 if (action->latency <= 0.0) {
141 action->generic_action.state_set =
142 surf_network_model->states.done_action_set;
143 xbt_swag_insert(action, action->generic_action.state_set);
148 return (surf_action_t) action;
151 /* returns an array of link_Constant_t */
152 static xbt_dynar_t get_route(void *src, void *dst)
154 xbt_die("Calling this function does not make any sense");
157 static double get_link_bandwidth(const void *link)
162 static double get_link_latency(const void *link)
167 static int link_shared(const void *link)
172 static void action_suspend(surf_action_t action)
174 ((surf_action_network_Constant_t) action)->suspended = 1;
177 static void action_resume(surf_action_t action)
179 if (((surf_action_network_Constant_t) action)->suspended)
180 ((surf_action_network_Constant_t) action)->suspended = 0;
183 static int action_is_suspended(surf_action_t action)
185 return ((surf_action_network_Constant_t) action)->suspended;
188 static void action_set_max_duration(surf_action_t action, double duration)
190 action->max_duration = duration;
193 static void finalize(void)
195 surf_model_exit(surf_network_model);
196 surf_network_model = NULL;
201 void surf_network_model_init_Constant(const char *filename)
203 xbt_assert(surf_network_model == NULL);
204 if (surf_network_model)
206 surf_network_model = surf_model_init();
209 surf_network_model->name = "constant time network";
210 surf_network_model->action_unref = action_unref;
211 surf_network_model->action_cancel = action_cancel;
212 surf_network_model->action_recycle = action_recycle;
213 surf_network_model->get_remains = action_get_remains;
215 surf_network_model->model_private->resource_used = resource_used;
216 surf_network_model->model_private->share_resources = share_resources;
217 surf_network_model->model_private->update_actions_state =
218 update_actions_state;
219 surf_network_model->model_private->update_resource_state =
220 update_resource_state;
221 surf_network_model->model_private->finalize = finalize;
223 surf_network_model->suspend = action_suspend;
224 surf_network_model->resume = action_resume;
225 surf_network_model->is_suspended = action_is_suspended;
226 surf_cpu_model->set_max_duration = action_set_max_duration;
228 surf_network_model->extension.network.communicate = communicate;
229 surf_network_model->extension.network.get_link_bandwidth =
231 surf_network_model->extension.network.get_link_latency = get_link_latency;
232 surf_network_model->extension.network.link_shared = link_shared;
235 random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
236 define_callbacks(filename);
237 xbt_dynar_push(model_list, &surf_network_model);
239 update_model_description(surf_network_model_description,
240 "Constant", surf_network_model);
242 xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
243 routing_model_create(sizeof(double), NULL);