ltt/branches/poly/lttv/main/traceset.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Michel Dagenais
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License Version 2 as
   6  * published by the Free Software Foundation;
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  16  * MA 02111-1307, USA.
  17  */
  18
  19
  20 #include <lttv/traceset.h>
  21 #include <stdio.h>
  22
  23 /* A trace is a sequence of events gathered in the same tracing session. The
  24    events may be stored in several tracefiles in the same directory.
  25    A trace set is defined when several traces are to be analyzed together,
  26    possibly to study the interactions between events in the different traces.
  27 */
  28
  29 struct _LttvTraceset {
  30   char * filename;
  31   GPtrArray *traces;
  32   LttvAttribute *a;
  33 };
  34
  35
  36 struct _LttvTrace {
  37   LttTrace *t;
  38   LttvAttribute *a;
  39   guint ref_count;
  40 };
  41
  42
  43 LttvTraceset *lttv_traceset_new()
  44 {
  45   LttvTraceset *s;
  46
  47   s = g_new(LttvTraceset, 1);
  48   s->filename = NULL;
  49   s->traces = g_ptr_array_new();
  50   s->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
  51   return s;
  52 }
  53
  54 char * lttv_traceset_name(LttvTraceset * s)
  55 {
  56   return s->filename;
  57 }
  58
  59 LttvTrace *lttv_trace_new(LttTrace *t)
  60 {
  61   LttvTrace *new_trace;
  62
  63   new_trace = g_new(LttvTrace, 1);
  64   new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
  65   new_trace->t = t;
  66   new_trace->ref_count = 0;
  67   return new_trace;
  68 }
  69
  70
  71 LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig)
  72 {
  73   int i;
  74   LttvTraceset *s;
  75   LttvTrace * trace;
  76
  77   s = g_new(LttvTraceset, 1);
  78   s->filename = NULL;
  79   s->traces = g_ptr_array_new();
  80   for(i=0;i<s_orig->traces->len;i++)
  81   {
  82     trace = g_ptr_array_index(s_orig->traces, i);
  83     trace->ref_count++;
  84
  85     /*CHECK this used ltt_trace_copy while it may not be needed. Need to
  86       define how traces and tracesets are shared */
  87     g_ptr_array_add(
  88         s->traces,
  89         g_ptr_array_index(s_orig->traces, i));
  90   }
  91   s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a)));
  92   return s;
  93 }
  94
  95
  96 LttvTraceset *lttv_traceset_load(const gchar *filename)
  97 {
  98   LttvTraceset *s = g_new(LttvTraceset,1);
  99   FILE *tf;
 100
 101   s->filename = g_strdup(filename);
 102   tf = fopen(filename,"r");
 103
 104   g_critical("NOT IMPLEMENTED : load traceset data from a XML file");
 105
 106   fclose(tf);
 107   return s;
 108 }
 109
 110 gint lttv_traceset_save(LttvTraceset *s)
 111 {
 112   FILE *tf;
 113
 114   tf = fopen(s->filename, "w");
 115
 116   g_critical("NOT IMPLEMENTED : save traceset data in a XML file");
 117
 118   fclose(tf);
 119   return 0;
 120 }
 121
 122 void lttv_traceset_destroy(LttvTraceset *s)
 123 {
 124   g_ptr_array_free(s->traces, TRUE);
 125   g_object_unref(s->a);
 126   g_free(s);
 127 }
 128
 129 void lttv_trace_destroy(LttvTrace *t)
 130 {
 131   g_object_unref(t->a);
 132   g_free(t);
 133 }
 134
 135
 136 void lttv_traceset_add(LttvTraceset *s, LttvTrace *t)
 137 {
 138   t->ref_count++;
 139   g_ptr_array_add(s->traces, t);
 140 }
 141
 142
 143 unsigned lttv_traceset_number(LttvTraceset *s)
 144 {
 145   return s->traces->len;
 146 }
 147
 148
 149 LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i)
 150 {
 151   g_assert(s->traces->len > i);
 152   return ((LttvTrace *)s->traces->pdata[i]);
 153 }
 154
 155
 156 void lttv_traceset_remove(LttvTraceset *s, unsigned i)
 157 {
 158   LttvTrace * t;
 159   g_assert(s->traces->len > i);
 160   t = (LttvTrace *)s->traces->pdata[i];
 161   t->ref_count--;
 162   g_ptr_array_remove_index(s->traces, i);
 163 }
 164
 165
 166 /* A set of attributes is attached to each trace set, trace and tracefile
 167    to store user defined data as needed. */
 168
 169 LttvAttribute *lttv_traceset_attribute(LttvTraceset *s)
 170 {
 171   return s->a;
 172 }
 173
 174
 175 LttvAttribute *lttv_trace_attribute(LttvTrace *t)
 176 {
 177   return t->a;
 178 }
 179
 180
 181 LttTrace *lttv_trace(LttvTrace *t)
 182 {
 183   return t->t;
 184 }
 185
 186 guint lttv_trace_get_ref_number(LttvTrace * t)
 187 {
 188   return t->ref_count;
 189 }