1 /* Copyright (c) 2004, 2005, 2007, 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 "xbt/sysdep.h"
11 #include "trace_mgr_private.h"
12 #include "surf_private.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_trace, surf, "Surf trace management");
16 static xbt_dict_t trace_list = NULL;
18 XBT_INLINE tmgr_history_t tmgr_history_new(void)
22 h = xbt_new0(s_tmgr_history_t, 1);
24 h->heap = xbt_heap_new(8, xbt_free_f); /* Why 8 ? Well, why not... */
29 XBT_INLINE void tmgr_history_free(tmgr_history_t h)
31 xbt_heap_free(h->heap);
35 tmgr_trace_t tmgr_trace_new_uniform(double alpha, double beta)
37 tmgr_trace_t trace = NULL;
39 trace = xbt_new0(s_tmgr_trace_t, 1);
40 trace->type = e_trace_uniform;
41 trace->s_uniform.alpha = alpha;
42 trace->s_uniform.beta = beta;
44 //FIXME Generate a new event date
50 tmgr_trace_t tmgr_trace_new_exponential(double lambda)
52 tmgr_trace_t trace = NULL;
54 trace = xbt_new0(s_tmgr_trace_t, 1);
55 trace->type = e_trace_exponential;
56 trace->s_exponential.lambda = lambda;
58 // FIXME Generate a new event date
63 tmgr_trace_t tmgr_trace_new_weibull(double lambda, double k)
65 tmgr_trace_t trace = NULL;
67 trace = xbt_new0(s_tmgr_trace_t, 1);
68 trace->type = e_trace_weibull;
69 trace->s_weibull.lambda = lambda;
70 trace->s_weibull.k = k;
72 // FIXME Generate a new event date
77 tmgr_trace_t tmgr_trace_new_from_string(const char *id, const char *input,
80 tmgr_trace_t trace = NULL;
83 tmgr_event_t last_event = NULL;
89 trace = xbt_dict_get_or_null(trace_list, id);
91 XBT_WARN("Ignoring redefinition of trace %s", id);
96 xbt_assert(periodicity >= 0,
97 "Invalid periodicity %lg (must be positive)", periodicity);
99 trace = xbt_new0(s_tmgr_trace_t, 1);
100 trace->type = e_trace_list;
101 trace->s_list.event_list = xbt_dynar_new(sizeof(s_tmgr_event_t), NULL);
103 list = xbt_str_split(input, "\n\r");
105 xbt_dynar_foreach(list, cpt, val) {
107 xbt_str_trim(val, " \t\n\r\x0B");
108 if (val[0] == '#' || val[0] == '\0' || val[0] == '%')
111 if (sscanf(val, "PERIODICITY " "%lg" "\n", &periodicity) == 1)
114 if (sscanf(val, "%lg" " " "%lg" "\n", &event.delta, &event.value) != 2)
115 xbt_die("%s:%d: Syntax error in trace\n%s", id, linecount, input);
118 if (last_event->delta > event.delta) {
119 xbt_die("%s:%d: Invalid trace: Events must be sorted, "
120 "but time %lg > time %lg.\n%s",
121 id, linecount, last_event->delta, event.delta, input);
123 last_event->delta = event.delta - last_event->delta;
125 xbt_dynar_push(trace->s_list.event_list, &event);
127 xbt_dynar_get_ptr(trace->s_list.event_list,
128 xbt_dynar_length(trace->s_list.event_list) - 1);
131 last_event->delta = periodicity;
134 trace_list = xbt_dict_new_homogeneous((void (*)(void *)) tmgr_trace_free);
136 xbt_dict_set(trace_list, id, (void *) trace, NULL);
138 xbt_dynar_free(&list);
142 tmgr_trace_t tmgr_trace_new_from_file(const char *filename)
146 tmgr_trace_t trace = NULL;
148 if ((!filename) || (strcmp(filename, "") == 0))
152 trace = xbt_dict_get_or_null(trace_list, filename);
154 XBT_WARN("Ignoring redefinition of trace %s", filename);
159 f = surf_fopen(filename, "r");
160 xbt_assert(f != NULL, "Cannot open file '%s' (path=%s)", filename,
161 xbt_str_join(surf_path, ":"));
163 tstr = xbt_str_from_file(f);
165 trace = tmgr_trace_new_from_string(filename, tstr, 0.);
171 tmgr_trace_t tmgr_empty_trace_new(void)
173 tmgr_trace_t trace = NULL;
174 s_tmgr_event_t event;
176 trace = xbt_new0(s_tmgr_trace_t, 1);
177 trace->s_list.event_list = xbt_dynar_new(sizeof(s_tmgr_event_t), NULL);
181 xbt_dynar_push(trace->s_list.event_list, &event);
186 XBT_INLINE void tmgr_trace_free(tmgr_trace_t trace)
190 xbt_dynar_free(&(trace->s_list.event_list));
194 tmgr_trace_event_t tmgr_history_add_trace(tmgr_history_t h,
197 unsigned int offset, void *model)
199 tmgr_trace_event_t trace_event = NULL;
201 trace_event = xbt_new0(s_tmgr_trace_event_t, 1);
202 trace_event->trace = trace;
203 trace_event->idx = offset;
204 trace_event->model = model;
206 xbt_assert((trace_event->idx < xbt_dynar_length(trace->s_list.event_list)),
207 "You're referring to an event that does not exist!");
209 xbt_heap_push(h->heap, trace_event, start_time);
214 XBT_INLINE double tmgr_history_next_date(tmgr_history_t h)
216 if (xbt_heap_size(h->heap))
217 return (xbt_heap_maxkey(h->heap));
222 tmgr_trace_event_t tmgr_history_get_next_event_leq(tmgr_history_t h,
227 double event_date = tmgr_history_next_date(h);
228 tmgr_trace_event_t trace_event = NULL;
229 tmgr_event_t event = NULL;
230 tmgr_trace_t trace = NULL;
232 if (event_date > date)
235 if (!(trace_event = xbt_heap_pop(h->heap)))
238 trace = trace_event->trace;
239 event = xbt_dynar_get_ptr(trace->s_list.event_list, trace_event->idx);
241 *value = event->value;
242 *model = trace_event->model;
244 if (trace_event->idx < xbt_dynar_length(trace->s_list.event_list) - 1) {
245 xbt_heap_push(h->heap, trace_event, event_date + event->delta);
247 } else if (event->delta > 0) { /* Last element, checking for periodicity */
248 xbt_heap_push(h->heap, trace_event, event_date + event->delta);
249 trace_event->idx = 0;
250 } else { /* We don't need this trace_event anymore */
251 trace_event->free_me = 1;
257 XBT_INLINE void tmgr_finalize(void)
259 xbt_dict_free(&trace_list);
262 int tmgr_trace_event_free(tmgr_trace_event_t trace_event)
264 if (trace_event->free_me) {
265 xbt_free(trace_event);