+/*
+ * surf.c
+ *
+ * Created on: Nov 27, 2009
+ * Author: Lucas Schnorr
+ * License: This program is free software; you can redistribute
+ * it and/or modify it under the terms of the license
+ * (GNU LGPL) which comes with this package.
+ *
+ * Copyright (c) 2009 The SimGrid team.
+ */
+
+#include "instr/private.h"
+#include "instr/config.h"
+
+#ifdef HAVE_TRACING
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(tracing_surf,tracing,"Tracing Surf");
+
+#define VARIABLE_SEPARATOR '#'
+
+static xbt_dict_t hosts_id;
+static xbt_dict_t created_links;
+static xbt_dict_t link_bandwidth;
+static xbt_dict_t link_latency;
+//static xbt_dict_t platform_variable_last_value; /* to control the amount of add/sub variables events*/
+//static xbt_dict_t platform_variable_last_time; /* to control the amount of add/sub variables events*/
+
+static xbt_dict_t last_platform_variables; /* to control the amount of add/sub variables events:
+ dict with key {RESOURCE_NAME}#Time or {RESOURCE_NAME}#Value of dict with variables types == string */
+
+static xbt_dict_t platform_variables; /* host or link name -> array of categories */
+
+static xbt_dict_t resource_variables; /* (host|link)#variable -> value */
+
+/* to trace gtnets */
+static xbt_dict_t gtnets_src; /* %p (action) -> %s */
+static xbt_dict_t gtnets_dst; /* %p (action) -> %s */
+
+void __TRACE_surf_init (void)
+{
+ hosts_id = xbt_dict_new();
+ created_links = xbt_dict_new();
+ link_bandwidth = xbt_dict_new();
+ link_latency = xbt_dict_new();
+ platform_variables = xbt_dict_new();
+
+ //platform_variable_last_value = xbt_dict_new();
+ //platform_variable_last_time = xbt_dict_new();
+
+ last_platform_variables = xbt_dict_new();
+
+ resource_variables = xbt_dict_new ();
+
+ gtnets_src = xbt_dict_new ();
+ gtnets_dst = xbt_dict_new ();
+}
+
+static char *strsplit (char *input, int field, char del) //caller should free the returned string
+{
+ int length = strlen(input), i;
+ int s = 0, e = length+1;
+ int current_field = 0;
+ for (i = 0; i < length; i++){
+ if (input[i] == del){
+ if (current_field == field){
+ e = i-1;
+ break;
+ }else{
+ s = i+1;
+ current_field++;
+ }
+ }
+ }
+ //copy string from s to e (with length equal to e-s) and return
+ char *ret = malloc ((e-s+2)*sizeof(char));
+ strncpy (ret, input+s, e-s+1);
+ ret[e-s+1] = '\0';
+ return ret;
+}
+
+void __TRACE_surf_finalize (void)
+{
+ if (!IS_TRACING_PLATFORM) return;
+ if (!xbt_dict_length(last_platform_variables)){
+ return;
+ }else{
+ xbt_dict_cursor_t cursor = NULL;
+ unsigned int cursor_ar = 0;
+ char *key, *value, *res;
+ char resource[200];
+
+ /* get all resources from last_platform_variables */
+ xbt_dynar_t resources = xbt_dynar_new(sizeof(char)*200, xbt_free);
+ xbt_dict_foreach(last_platform_variables, cursor, key, value) {
+ res = strsplit (key, 0, VARIABLE_SEPARATOR);
+ char *aux = strsplit (key, 1, VARIABLE_SEPARATOR);
+ if (strcmp (aux, "Time") == 0){ //only need to add one of three
+ xbt_dynar_push (resources, xbt_strdup(res));
+ }
+ free (aux);
+ free (res);
+ }
+
+ /* iterate through resources array */
+ xbt_dynar_foreach (resources, cursor_ar, resource) {
+ char timekey[100], valuekey[100], variablekey[100];
+ snprintf (timekey, 100, "%s%cTime", resource, VARIABLE_SEPARATOR);
+ snprintf (valuekey, 100, "%s%cValue", resource, VARIABLE_SEPARATOR);
+ snprintf (variablekey, 100, "%s%cVariable", resource, VARIABLE_SEPARATOR);
+
+ char *time = xbt_dict_get_or_null (last_platform_variables, timekey);
+ if (!time) continue;
+ char *value = xbt_dict_get (last_platform_variables, valuekey);
+ char *variable = xbt_dict_get (last_platform_variables, variablekey);
+ pajeSubVariable (atof(time), variable, resource, value);
+
+ //TODO: should remove, but it is causing sigabort
+ //xbt_dict_remove (last_platform_variables, timekey);
+ //xbt_dict_remove (last_platform_variables, valuekey);
+ //xbt_dict_remove (last_platform_variables, variablekey);
+ }
+ }
+}
+
+void __TRACE_surf_check_variable_set_to_zero (double now, const char *variable, const char *resource)
+{
+ /* check if we have to set it to 0 */
+ if (!xbt_dict_get_or_null (platform_variables, resource)){
+ xbt_dynar_t array = xbt_dynar_new(100*sizeof(char), xbt_free);
+ xbt_dynar_push (array, xbt_strdup(variable));
+ if (IS_TRACING_PLATFORM) pajeSetVariable (now, variable, resource, "0");
+ xbt_dict_set (platform_variables, resource, array, xbt_dynar_free_voidp);
+ }else{
+ xbt_dynar_t array = xbt_dict_get (platform_variables, resource);
+ unsigned int i;
+ char cat[100];
+ int flag = 0;
+ xbt_dynar_foreach (array, i, cat) {
+ if (strcmp(variable, cat)==0){
+ flag = 1;
+ }
+ }
+ if (flag==0){
+ xbt_dynar_push (array, strdup(variable));
+ if (IS_TRACING_PLATFORM) pajeSetVariable (now, variable, resource, "0");
+ }
+ }
+ /* end of check */
+}
+
+void __TRACE_surf_update_action_state_resource (double now, double delta, const char *variable, const char *resource, double value)
+{
+ if (!IS_TRACING_PLATFORM) return;
+
+ char valuestr[100];
+ snprintf (valuestr, 100, "%f", value);
+
+ /*
+ //fprintf (stderr, "resource = %s variable = %s (%f -> %f) value = %s\n", resource, variable, now, now+delta, valuestr);
+ if (1){
+ __TRACE_surf_check_variable_set_to_zero (now, variable, resource);
+ if (IS_TRACING_PLATFORM) pajeAddVariable (now, variable, resource, valuestr);
+ if (IS_TRACING_PLATFORM) pajeSubVariable (now+delta, variable, resource, valuestr);
+ return;
+ }
+ */
+
+ /*
+ * The following code replaces the code above with the objective
+ * to decrease the size of file because of unnecessary add/sub on
+ * variables. It should be re-checked before put in production.
+ */
+
+ char nowstr[100], nowdeltastr[100];
+ snprintf (nowstr, 100, "%.15f", now);
+ snprintf (nowdeltastr, 100, "%.15f", now+delta);
+
+ char timekey[100], valuekey[100], variablekey[100];
+ snprintf (timekey, 100, "%s%cTime", resource, VARIABLE_SEPARATOR);
+ snprintf (valuekey, 100, "%s%cValue", resource, VARIABLE_SEPARATOR);
+ snprintf (variablekey, 100, "%s%cVariable", resource, VARIABLE_SEPARATOR);
+
+ char *lastvariable = xbt_dict_get_or_null (last_platform_variables, variablekey);
+ if (lastvariable == NULL){
+ __TRACE_surf_check_variable_set_to_zero (now, variable, resource);
+ pajeAddVariable (now, variable, resource, valuestr);
+ xbt_dict_set (last_platform_variables, xbt_strdup (timekey), xbt_strdup (nowdeltastr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup (valuekey), xbt_strdup (valuestr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup (variablekey), xbt_strdup (variable), xbt_free);
+ }else{
+ char *lasttime = xbt_dict_get_or_null (last_platform_variables, timekey);
+ char *lastvalue = xbt_dict_get_or_null (last_platform_variables, valuekey);
+
+ /* check if it is the same variable */
+ if (strcmp(lastvariable, variable) == 0){ /* same variable */
+ /* check if lasttime equals now */
+ if (atof(lasttime) == now){ /* lastime == now */
+ /* check if lastvalue equals valuestr */
+ if (atof(lastvalue) == value){ /* lastvalue == value (good, just advance time) */
+ xbt_dict_set (last_platform_variables, xbt_strdup(timekey), xbt_strdup(nowdeltastr), xbt_free);
+ }else{ /* value has changed */
+ /* value has changed, subtract previous value, add new one */
+ pajeSubVariable (atof(lasttime), variable, resource, lastvalue);
+ pajeAddVariable (atof(nowstr), variable, resource, valuestr);
+ xbt_dict_set (last_platform_variables, xbt_strdup(timekey), xbt_strdup(nowdeltastr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup(valuekey), xbt_strdup(valuestr), xbt_free);
+ }
+ }else{ /* lasttime != now */
+ /* the last time is different from new starting time, subtract to lasttime and add from nowstr */
+ pajeSubVariable (atof(lasttime), variable, resource, lastvalue);
+ pajeAddVariable (atof(nowstr), variable, resource, valuestr);
+ xbt_dict_set (last_platform_variables, xbt_strdup(timekey), xbt_strdup(nowdeltastr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup(valuekey), xbt_strdup(valuestr), xbt_free);
+ }
+ }else{ /* variable has changed */
+ pajeSubVariable (atof(lasttime), lastvariable, resource, lastvalue);
+ __TRACE_surf_check_variable_set_to_zero (now, variable, resource);
+ pajeAddVariable (now, variable, resource, valuestr);
+ xbt_dict_set (last_platform_variables, xbt_strdup (timekey), xbt_strdup (nowdeltastr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup (valuekey), xbt_strdup (valuestr), xbt_free);
+ xbt_dict_set (last_platform_variables, xbt_strdup (variablekey), xbt_strdup (variable), xbt_free);
+ }
+ }
+ return;
+}
+
+void __TRACE_surf_set_resource_variable (double date, const char *variable, const char *resource, double value)
+{
+ if (!IS_TRACING) return;
+ char aux[100], key[100];
+ snprintf (aux, 100, "%f", value);
+ snprintf (key, 100, "%s%c%s", resource, VARIABLE_SEPARATOR, variable);
+
+ char *last_value = xbt_dict_get_or_null(resource_variables, key);
+ if (last_value){
+ if (atof(last_value) == value){
+ return;
+ }
+ }
+ if (IS_TRACING_PLATFORM) pajeSetVariable (date, variable, resource, aux);
+ xbt_dict_set (resource_variables, xbt_strdup(key), xbt_strdup(aux), xbt_free);
+}
+
+void TRACE_surf_update_action_state (void *surf_action, smx_action_t smx_action,
+ double value, const char *stateValue, double now, double delta)
+{
+}
+
+void TRACE_surf_update_action_state_net_resource (const char *name, smx_action_t smx_action, double value, double now, double delta)
+{
+ if (!IS_TRACING || !IS_TRACED(smx_action)) return;
+
+ if (strcmp (name, "__loopback__")==0 ||
+ strcmp (name, "loopback")==0){ //ignore loopback updates
+ return;
+ }
+
+ if (value == 0) return;
+
+ if (!xbt_dict_get_or_null (created_links, name)){
+ TRACE_surf_missing_link ();
+ return;
+ }
+
+ char type[100];
+ snprintf (type, 100, "b%s", smx_action->category);
+ __TRACE_surf_update_action_state_resource (now, delta, type, name, value);
+ return;
+}
+
+void TRACE_surf_update_action_state_cpu_resource (const char *name, smx_action_t smx_action, double value, double now, double delta)
+{
+ if (!IS_TRACING || !IS_TRACED(smx_action)) return;
+
+ if (value==0){
+ return;
+ }
+
+ char type[100];
+ snprintf (type, 100, "p%s", smx_action->category);
+ __TRACE_surf_update_action_state_resource (now, delta, type, name, value);
+ return;
+}
+
+void TRACE_surf_net_link_new (char *name, double bw, double lat)
+{
+ if (!IS_TRACING) return;
+ //if (IS_TRACING_PLATFORM) pajeCreateContainerWithBandwidthLatency (SIMIX_get_clock(), name, "LINK", "platform", name, bw, lat);
+ //save bw and lat information for this link
+ double *bw_ptr, *lat_ptr;
+ bw_ptr = xbt_new (double, 1);
+ lat_ptr = xbt_new (double, 1);
+ *bw_ptr = bw;
+ *lat_ptr = lat;
+ xbt_dict_set (link_bandwidth, xbt_strdup(name), bw_ptr, xbt_free);
+ xbt_dict_set (link_latency, xbt_strdup(name), lat_ptr, xbt_free);
+}
+
+void TRACE_surf_cpu_new (char *name, double power)
+{
+ if (!IS_TRACING) return;
+ if (IS_TRACING_PLATFORM) pajeCreateContainer (SIMIX_get_clock(), name, "HOST", "platform", name);
+ __TRACE_surf_set_resource_variable (SIMIX_get_clock(), "power", name, power);
+}
+
+void TRACE_surf_routing_full_parse_end (char *link_name, int src, int dst)
+{
+ if (!IS_TRACING) return;
+ char srcidstr[100], dstidstr[100];
+ snprintf (srcidstr, 100, "%d", src);
+ snprintf (dstidstr, 100, "%d", dst);
+ char *srcname = xbt_dict_get (hosts_id, srcidstr);
+ char *dstname = xbt_dict_get (hosts_id, dstidstr);
+
+ char key[100];
+ snprintf (key, 100, "l%d-%d", src, dst);
+
+ if (strcmp (link_name, "__loopback__")==0 ||
+ strcmp (link_name, "loopback")==0){ //ignore loopback updates
+ return;
+ }
+
+ if (!xbt_dict_get_or_null (created_links, link_name)){
+ //if (IS_TRACING_PLATFORM) pajeStartLink (SIMIX_get_clock(), "edge", "platform", "route", srcname, key);
+ //if (IS_TRACING_PLATFORM) pajeEndLink (SIMIX_get_clock()+0.1, "edge", "platform", "route", dstname, key);
+ double *bw = xbt_dict_get (link_bandwidth, link_name);
+ double *lat = xbt_dict_get (link_latency, link_name);
+ if (IS_TRACING_PLATFORM) pajeCreateContainerWithBandwidthLatencySrcDst (SIMIX_get_clock(), link_name, "LINK", "platform", link_name, *bw, *lat, srcname, dstname);
+ __TRACE_surf_set_resource_variable (SIMIX_get_clock(), "bandwidth", link_name, *bw);
+ __TRACE_surf_set_resource_variable (SIMIX_get_clock(), "latency", link_name, *lat);
+ xbt_dict_set (created_links, xbt_strdup(link_name), xbt_strdup ("1"), xbt_free);
+ }
+}
+
+void TRACE_surf_cpu_set_power (double date, char *resource, double power)
+{
+ __TRACE_surf_set_resource_variable (date, "power", resource, power);
+}
+
+void TRACE_surf_link_set_bandwidth (double date, char *resource, double bandwidth)
+{
+ __TRACE_surf_set_resource_variable (date, "bandwidth", resource, bandwidth);
+}
+
+void TRACE_surf_link_set_latency (double date, char *resource, double latency)
+{
+ __TRACE_surf_set_resource_variable (date, "latency", resource, latency);
+}
+
+void TRACE_surf_define_host_id (const char *name, int host_id)
+{
+ if (!IS_TRACING) return;
+ char strid[100];
+ snprintf (strid, 100, "%d", host_id);
+ xbt_dict_set (hosts_id, strdup(name), strdup(strid), free);
+ xbt_dict_set (hosts_id, strdup(strid), strdup(name), free);
+}
+
+/* to trace gtnets */
+void TRACE_surf_gtnets_communicate (void *action, int src, int dst)
+{
+ if (!IS_TRACING) return;
+ char key[100], aux[100];
+ snprintf (key, 100, "%p", action);
+
+ snprintf (aux, 100, "%d", src);
+ xbt_dict_set (gtnets_src, xbt_strdup(key), xbt_strdup(aux), xbt_free);
+ snprintf (aux, 100, "%d", dst);
+ xbt_dict_set (gtnets_dst, xbt_strdup(key), xbt_strdup(aux), xbt_free);
+}
+
+int TRACE_surf_gtnets_get_src (void *action)
+{
+ if (!IS_TRACING) return -1;
+ char key[100];
+ snprintf (key, 100, "%p", action);
+
+ char *aux = xbt_dict_get_or_null (gtnets_src, key);
+ if (aux){
+ return atoi(aux);
+ }else{
+ return -1;
+ }
+}
+
+int TRACE_surf_gtnets_get_dst (void *action)
+{
+ if (!IS_TRACING) return -1;
+ char key[100];
+ snprintf (key, 100, "%p", action);
+
+ char *aux = xbt_dict_get_or_null (gtnets_dst, key);
+ if (aux){
+ return atoi(aux);
+ }else{
+ return -1;
+ }
+}
+
+void TRACE_surf_gtnets_destroy (void *action)
+{
+ if (!IS_TRACING) return;
+ char key[100];
+ snprintf (key, 100, "%p", action);
+ xbt_dict_remove (gtnets_src, key);
+ xbt_dict_remove (gtnets_dst, key);
+}
+
+void TRACE_surf_missing_link (void)
+{
+ CRITICAL0("The trace cannot be done because "
+ "the platform you are using contains "
+ "routes with more than one link.");
+ THROW0(tracing_error, TRACE_ERROR_COMPLEX_ROUTES, "Tracing failed");
+}
+
+#endif