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 double netcste_share_resources(double now)
57 surf_action_network_Constant_t action = NULL;
58 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
61 xbt_swag_foreach(action, running_actions) {
62 if (action->latency > 0) {
64 min = action->latency;
65 else if (action->latency < min)
66 min = action->latency;
73 static void netcste_update_actions_state(double now, double delta)
75 surf_action_network_Constant_t action = NULL;
76 surf_action_network_Constant_t next_action = NULL;
77 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
79 xbt_swag_foreach_safe(action, next_action, running_actions) {
80 if (action->latency > 0) {
81 if (action->latency > delta) {
82 double_update(&(action->latency), delta);
84 action->latency = 0.0;
87 double_update(&(action->generic_action.remains),
88 action->generic_action.cost * delta / action->lat_init);
89 if (action->generic_action.max_duration != NO_MAX_DURATION)
90 double_update(&(action->generic_action.max_duration), delta);
92 if (action->generic_action.remains <= 0) {
93 action->generic_action.finish = surf_get_clock();
94 surf_network_model->action_state_set((surf_action_t) action,
96 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
97 && (action->generic_action.max_duration <= 0)) {
98 action->generic_action.finish = surf_get_clock();
99 surf_network_model->action_state_set((surf_action_t) action,
105 static void netcste_update_resource_state(void *id,
106 tmgr_trace_event_t event_type,
107 double value, double time)
112 static surf_action_t netcste_communicate(const char *src_name, const char *dst_name,
113 int src, int dst, double size, double rate)
115 surf_action_network_Constant_t action = NULL;
117 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
120 surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
121 surf_network_model, 0);
123 action->suspended = 0;
125 action->latency = 1; //random_generate(random_latency);
126 action->lat_init = action->latency;
128 if (action->latency <= 0.0) {
129 action->generic_action.state_set =
130 surf_network_model->states.done_action_set;
131 xbt_swag_insert(action, action->generic_action.state_set);
136 return (surf_action_t) action;
139 /* returns an array of link_Constant_t */
140 static xbt_dynar_t netcste_get_route(void *src, void *dst)
142 xbt_die("Calling this function does not make any sense");
145 static double netcste_get_link_bandwidth(const void *link)
150 static double netcste_get_link_latency(const void *link)
155 static int link_shared(const void *link)
160 static void netcste_action_suspend(surf_action_t action)
162 ((surf_action_network_Constant_t) action)->suspended = 1;
165 static void netcste_action_resume(surf_action_t action)
167 if (((surf_action_network_Constant_t) action)->suspended)
168 ((surf_action_network_Constant_t) action)->suspended = 0;
171 static int netcste_action_is_suspended(surf_action_t action)
173 return ((surf_action_network_Constant_t) action)->suspended;
176 static void netcste_finalize(void)
178 surf_model_exit(surf_network_model);
179 surf_network_model = NULL;
184 void surf_network_model_init_Constant(const char *filename)
186 xbt_assert(surf_network_model == NULL);
187 if (surf_network_model)
189 surf_network_model = surf_model_init();
192 surf_network_model->name = "constant time network";
193 surf_network_model->action_unref = netcste_action_unref;
194 surf_network_model->action_cancel = netcste_action_cancel;
195 surf_network_model->action_recycle = net_action_recycle;
196 surf_network_model->get_remains = net_action_get_remains;
197 surf_network_model->get_latency_limited = net_get_link_latency;
199 surf_network_model->model_private->resource_used = netcste_resource_used;
200 surf_network_model->model_private->share_resources = netcste_share_resources;
201 surf_network_model->model_private->update_actions_state =
202 netcste_update_actions_state;
203 surf_network_model->model_private->update_resource_state =
204 netcste_update_resource_state;
205 surf_network_model->model_private->finalize = netcste_finalize;
207 surf_network_model->suspend = netcste_action_suspend;
208 surf_network_model->resume = netcste_action_resume;
209 surf_network_model->is_suspended = netcste_action_is_suspended;
210 surf_cpu_model->set_max_duration = net_action_set_max_duration;
212 surf_network_model->extension.network.communicate = netcste_communicate;
213 surf_network_model->extension.network.get_link_bandwidth =
214 netcste_get_link_bandwidth;
215 surf_network_model->extension.network.get_link_latency = netcste_get_link_latency;
216 surf_network_model->extension.network.link_shared = link_shared;
219 random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
220 netcste_define_callbacks(filename);
221 xbt_dynar_push(model_list, &surf_network_model);
223 update_model_description(surf_network_model_description,
224 "Constant", surf_network_model);
226 xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
227 routing_model_create(sizeof(double), NULL);