1 /* Copyright (c) 2008-2013. 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 int host_number_int = 0;
23 static void netcste_count_hosts(sg_platf_host_cbarg_t h) {
27 static void netcste_define_callbacks(void) {
28 sg_platf_host_add_cb(netcste_count_hosts);
31 static int netcste_resource_used(void *resource_id)
36 static int netcste_action_unref(surf_action_t action)
39 if (!action->refcount) {
40 xbt_swag_remove(action, action->state_set);
41 surf_action_free(&action);
47 static void netcste_action_cancel(surf_action_t action)
52 static double netcste_share_resources(double now)
54 surf_action_network_Constant_t action = NULL;
55 xbt_swag_t running_actions =
56 surf_network_model->states.running_action_set;
59 xbt_swag_foreach(action, running_actions) {
60 if (action->latency > 0) {
62 min = action->latency;
63 else if (action->latency < min)
64 min = action->latency;
71 static void netcste_update_actions_state(double now, double delta)
73 surf_action_network_Constant_t action = NULL;
74 surf_action_network_Constant_t next_action = NULL;
75 xbt_swag_t running_actions =
76 surf_network_model->states.running_action_set;
78 xbt_swag_foreach_safe(action, next_action, running_actions) {
79 if (action->latency > 0) {
80 if (action->latency > delta) {
81 double_update(&(action->latency), delta);
83 action->latency = 0.0;
86 double_update(&(action->generic_action.remains),
87 action->generic_action.cost * delta / action->lat_init);
88 if (action->generic_action.max_duration != NO_MAX_DURATION)
89 double_update(&(action->generic_action.max_duration), delta);
91 if (action->generic_action.remains <= 0) {
92 action->generic_action.finish = surf_get_clock();
93 surf_network_model->action_state_set((surf_action_t) action,
95 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
96 && (action->generic_action.max_duration <= 0)) {
97 action->generic_action.finish = surf_get_clock();
98 surf_network_model->action_state_set((surf_action_t) action,
104 static void netcste_update_resource_state(void *id,
105 tmgr_trace_event_t event_type,
106 double value, double time)
111 static surf_action_t netcste_communicate(sg_routing_edge_t src,
112 sg_routing_edge_t dst,
113 double size, double rate)
115 surf_action_network_Constant_t action = NULL;
117 char *src_name = src->name;
118 char *dst_name = dst->name;
120 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
123 surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
124 surf_network_model, 0);
126 action->suspended = 0;
128 action->latency = sg_latency_factor;
129 action->lat_init = action->latency;
131 if (action->latency <= 0.0) {
132 action->generic_action.state_set =
133 surf_network_model->states.done_action_set;
134 xbt_swag_insert(action, action->generic_action.state_set);
139 return (surf_action_t) action;
143 static void netcste_action_set_category(surf_action_t action, const char *category)
145 //ignore completely the categories in constant model, they are not traced
149 static double netcste_get_link_bandwidth(const void *link)
152 return -1.0; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
155 static double netcste_get_link_latency(const void *link)
158 return -1.0; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
161 static int link_shared(const void *link)
164 return -1; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
167 static void netcste_action_suspend(surf_action_t action)
169 ((surf_action_network_Constant_t) action)->suspended = 1;
172 static void netcste_action_resume(surf_action_t action)
174 if (((surf_action_network_Constant_t) action)->suspended)
175 ((surf_action_network_Constant_t) action)->suspended = 0;
178 static int netcste_action_is_suspended(surf_action_t action)
180 return ((surf_action_network_Constant_t) action)->suspended;
183 static void netcste_finalize(void)
185 surf_model_exit(surf_network_model);
186 surf_network_model = NULL;
191 void surf_network_model_init_Constant()
193 xbt_assert(surf_network_model == NULL);
194 if (surf_network_model)
196 surf_network_model = surf_model_init();
198 surf_network_model->name = "constant time network";
199 surf_network_model->action_unref = netcste_action_unref;
200 surf_network_model->action_cancel = netcste_action_cancel;
201 surf_network_model->action_recycle = net_action_recycle;
202 surf_network_model->get_remains = surf_action_get_remains;
203 #ifdef HAVE_LATENCY_BOUND_TRACKING
204 surf_network_model->get_latency_limited = net_get_link_latency_limited;
207 surf_network_model->model_private->resource_used = netcste_resource_used;
208 surf_network_model->model_private->share_resources =
209 netcste_share_resources;
210 surf_network_model->model_private->update_actions_state =
211 netcste_update_actions_state;
212 surf_network_model->model_private->update_resource_state =
213 netcste_update_resource_state;
214 surf_network_model->model_private->finalize = netcste_finalize;
216 surf_network_model->suspend = netcste_action_suspend;
217 surf_network_model->resume = netcste_action_resume;
218 surf_network_model->is_suspended = netcste_action_is_suspended;
219 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
221 surf_network_model->extension.network.communicate = netcste_communicate;
222 surf_network_model->extension.network.get_link_bandwidth =
223 netcste_get_link_bandwidth;
224 surf_network_model->extension.network.get_link_latency =
225 netcste_get_link_latency;
226 surf_network_model->extension.network.link_shared = link_shared;
228 surf_network_model->set_category = netcste_action_set_category;
231 netcste_define_callbacks();
232 xbt_dynar_push(model_list, &surf_network_model);
234 routing_model_create(NULL);