1 /* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "surf_private.h"
8 #include "surf/random_mgr.h"
13 typedef struct surf_action_network_Constant {
14 s_surf_action_t generic_action;
18 } s_surf_action_network_Constant_t, *surf_action_network_Constant_t;
20 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
21 static random_data_t random_latency = NULL;
22 static int host_number_int = 0;
24 static void netcste_count_hosts(void)
29 static void netcste_define_callbacks(const char *file)
31 surfxml_add_callback(STag_surfxml_host_cb_list, &netcste_count_hosts);
34 static int netcste_resource_used(void *resource_id)
39 static int netcste_action_unref(surf_action_t action)
42 if (!action->refcount) {
43 xbt_swag_remove(action, action->state_set);
50 static void netcste_action_cancel(surf_action_t action)
55 static void netcste_action_recycle(surf_action_t action)
60 static double netcste_action_get_remains(surf_action_t action)
62 return action->remains;
65 static double netcste_share_resources(double now)
67 surf_action_network_Constant_t action = NULL;
68 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
71 xbt_swag_foreach(action, running_actions) {
72 if (action->latency > 0) {
74 min = action->latency;
75 else if (action->latency < min)
76 min = action->latency;
83 static void netcste_update_actions_state(double now, double delta)
85 surf_action_network_Constant_t action = NULL;
86 surf_action_network_Constant_t next_action = NULL;
87 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
89 xbt_swag_foreach_safe(action, next_action, running_actions) {
90 if (action->latency > 0) {
91 if (action->latency > delta) {
92 double_update(&(action->latency), delta);
94 action->latency = 0.0;
97 double_update(&(action->generic_action.remains),
98 action->generic_action.cost * delta / action->lat_init);
99 if (action->generic_action.max_duration != NO_MAX_DURATION)
100 double_update(&(action->generic_action.max_duration), delta);
102 if (action->generic_action.remains <= 0) {
103 action->generic_action.finish = surf_get_clock();
104 surf_network_model->action_state_set((surf_action_t) action,
106 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
107 && (action->generic_action.max_duration <= 0)) {
108 action->generic_action.finish = surf_get_clock();
109 surf_network_model->action_state_set((surf_action_t) action,
115 static void netcste_update_resource_state(void *id,
116 tmgr_trace_event_t event_type,
117 double value, double time)
122 static surf_action_t netcste_communicate(const char *src_name, const char *dst_name,
123 int src, int dst, double size, double rate)
125 surf_action_network_Constant_t action = NULL;
127 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
130 surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
131 surf_network_model, 0);
133 action->suspended = 0;
135 action->latency = 1; //random_generate(random_latency);
136 action->lat_init = action->latency;
138 if (action->latency <= 0.0) {
139 action->generic_action.state_set =
140 surf_network_model->states.done_action_set;
141 xbt_swag_insert(action, action->generic_action.state_set);
146 return (surf_action_t) action;
149 /* returns an array of link_Constant_t */
150 static xbt_dynar_t netcste_get_route(void *src, void *dst)
152 xbt_die("Calling this function does not make any sense");
155 static double netcste_get_link_bandwidth(const void *link)
160 static double netcste_get_link_latency(const void *link)
165 static int link_shared(const void *link)
170 static void netcste_action_suspend(surf_action_t action)
172 ((surf_action_network_Constant_t) action)->suspended = 1;
175 static void netcste_action_resume(surf_action_t action)
177 if (((surf_action_network_Constant_t) action)->suspended)
178 ((surf_action_network_Constant_t) action)->suspended = 0;
181 static int netcste_action_is_suspended(surf_action_t action)
183 return ((surf_action_network_Constant_t) action)->suspended;
186 static void netcste_action_set_max_duration(surf_action_t action, double duration)
188 action->max_duration = duration;
191 static void netcste_finalize(void)
193 surf_model_exit(surf_network_model);
194 surf_network_model = NULL;
199 void surf_network_model_init_Constant(const char *filename)
201 xbt_assert(surf_network_model == NULL);
202 if (surf_network_model)
204 surf_network_model = surf_model_init();
207 surf_network_model->name = "constant time network";
208 surf_network_model->action_unref = netcste_action_unref;
209 surf_network_model->action_cancel = netcste_action_cancel;
210 surf_network_model->action_recycle = netcste_action_recycle;
211 surf_network_model->get_remains = netcste_action_get_remains;
213 surf_network_model->model_private->resource_used = netcste_resource_used;
214 surf_network_model->model_private->share_resources = netcste_share_resources;
215 surf_network_model->model_private->update_actions_state =
216 netcste_update_actions_state;
217 surf_network_model->model_private->update_resource_state =
218 netcste_update_resource_state;
219 surf_network_model->model_private->finalize = netcste_finalize;
221 surf_network_model->suspend = netcste_action_suspend;
222 surf_network_model->resume = netcste_action_resume;
223 surf_network_model->is_suspended = netcste_action_is_suspended;
224 surf_cpu_model->set_max_duration = netcste_action_set_max_duration;
226 surf_network_model->extension.network.communicate = netcste_communicate;
227 surf_network_model->extension.network.get_link_bandwidth =
228 netcste_get_link_bandwidth;
229 surf_network_model->extension.network.get_link_latency = netcste_get_link_latency;
230 surf_network_model->extension.network.link_shared = link_shared;
233 random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
234 netcste_define_callbacks(filename);
235 xbt_dynar_push(model_list, &surf_network_model);
237 update_model_description(surf_network_model_description,
238 "Constant", surf_network_model);
240 xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
241 routing_model_create(sizeof(double), NULL);