| 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 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <lttv/traceset.h> |
| 24 | #include <lttv/iattribute.h> |
| 25 | #include <stdio.h> |
| 26 | #include <babeltrace/context.h> |
| 27 | |
| 28 | /* A trace is a sequence of events gathered in the same tracing session. The |
| 29 | events may be stored in several tracefiles in the same directory. |
| 30 | A trace set is defined when several traces are to be analyzed together, |
| 31 | possibly to study the interactions between events in the different traces. |
| 32 | */ |
| 33 | |
| 34 | struct _LttvTraceset { |
| 35 | char * filename; |
| 36 | GPtrArray *traces; |
| 37 | struct bt_context *context; |
| 38 | LttvAttribute *a; |
| 39 | }; |
| 40 | |
| 41 | |
| 42 | struct _LttvTrace { |
| 43 | LttTrace *t; |
| 44 | LttvAttribute *a; |
| 45 | guint ref_count; |
| 46 | }; |
| 47 | |
| 48 | |
| 49 | LttvTraceset *lttv_traceset_new() |
| 50 | { |
| 51 | LttvTraceset *s; |
| 52 | |
| 53 | s = g_new(LttvTraceset, 1); |
| 54 | s->filename = NULL; |
| 55 | s->traces = g_ptr_array_new(); |
| 56 | s->context = bt_context_create(); |
| 57 | s->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 58 | return s; |
| 59 | } |
| 60 | |
| 61 | char * lttv_traceset_name(LttvTraceset * s) |
| 62 | { |
| 63 | return s->filename; |
| 64 | } |
| 65 | |
| 66 | LttvTrace *lttv_trace_new(LttTrace *t) |
| 67 | { |
| 68 | LttvTrace *new_trace; |
| 69 | |
| 70 | new_trace = g_new(LttvTrace, 1); |
| 71 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 72 | new_trace->t = t; |
| 73 | new_trace->ref_count = 0; |
| 74 | return new_trace; |
| 75 | } |
| 76 | |
| 77 | |
| 78 | LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) |
| 79 | { |
| 80 | guint i; |
| 81 | LttvTraceset *s; |
| 82 | LttvTrace * trace; |
| 83 | |
| 84 | s = g_new(LttvTraceset, 1); |
| 85 | s->filename = NULL; |
| 86 | s->traces = g_ptr_array_new(); |
| 87 | for(i=0;i<s_orig->traces->len;i++) |
| 88 | { |
| 89 | trace = g_ptr_array_index(s_orig->traces, i); |
| 90 | trace->ref_count++; |
| 91 | |
| 92 | g_ptr_array_add(s->traces, trace); |
| 93 | } |
| 94 | s->context = s_orig->context; |
| 95 | bt_context_get(s->context); |
| 96 | s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a))); |
| 97 | return s; |
| 98 | } |
| 99 | |
| 100 | |
| 101 | LttvTraceset *lttv_traceset_load(const gchar *filename) |
| 102 | { |
| 103 | LttvTraceset *s = g_new(LttvTraceset,1); |
| 104 | FILE *tf; |
| 105 | |
| 106 | s->filename = g_strdup(filename); |
| 107 | tf = fopen(filename,"r"); |
| 108 | |
| 109 | g_critical("NOT IMPLEMENTED : load traceset data from a XML file"); |
| 110 | |
| 111 | fclose(tf); |
| 112 | return s; |
| 113 | } |
| 114 | |
| 115 | gint lttv_traceset_save(LttvTraceset *s) |
| 116 | { |
| 117 | FILE *tf; |
| 118 | |
| 119 | tf = fopen(s->filename, "w"); |
| 120 | |
| 121 | g_critical("NOT IMPLEMENTED : save traceset data in a XML file"); |
| 122 | |
| 123 | fclose(tf); |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | void lttv_traceset_destroy(LttvTraceset *s) |
| 128 | { |
| 129 | guint i; |
| 130 | |
| 131 | for(i=0;i<s->traces->len;i++) { |
| 132 | LttvTrace *trace = g_ptr_array_index(s->traces, i); |
| 133 | lttv_trace_unref(trace); |
| 134 | if(lttv_trace_get_ref_number(trace) == 0) |
| 135 | lttv_trace_destroy(trace); |
| 136 | } |
| 137 | g_ptr_array_free(s->traces, TRUE); |
| 138 | bt_context_put(s->context); |
| 139 | g_object_unref(s->a); |
| 140 | g_free(s); |
| 141 | } |
| 142 | |
| 143 | void lttv_trace_destroy(LttvTrace *t) |
| 144 | { |
| 145 | g_object_unref(t->a); |
| 146 | g_free(t); |
| 147 | } |
| 148 | |
| 149 | |
| 150 | void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) |
| 151 | { |
| 152 | t->ref_count++; |
| 153 | g_ptr_array_add(s->traces, t); |
| 154 | } |
| 155 | |
| 156 | |
| 157 | unsigned lttv_traceset_number(LttvTraceset *s) |
| 158 | { |
| 159 | return s->traces->len; |
| 160 | } |
| 161 | |
| 162 | |
| 163 | LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i) |
| 164 | { |
| 165 | g_assert(s->traces->len > i); |
| 166 | return ((LttvTrace *)s->traces->pdata[i]); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | void lttv_traceset_remove(LttvTraceset *s, unsigned i) |
| 171 | { |
| 172 | LttvTrace * t; |
| 173 | g_assert(s->traces->len > i); |
| 174 | t = (LttvTrace *)s->traces->pdata[i]; |
| 175 | t->ref_count--; |
| 176 | g_ptr_array_remove_index(s->traces, i); |
| 177 | } |
| 178 | |
| 179 | |
| 180 | /* A set of attributes is attached to each trace set, trace and tracefile |
| 181 | to store user defined data as needed. */ |
| 182 | |
| 183 | LttvAttribute *lttv_traceset_attribute(LttvTraceset *s) |
| 184 | { |
| 185 | return s->a; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | LttvAttribute *lttv_trace_attribute(LttvTrace *t) |
| 190 | { |
| 191 | return t->a; |
| 192 | } |
| 193 | |
| 194 | |
| 195 | LttTrace *lttv_trace(LttvTrace *t) |
| 196 | { |
| 197 | return t->t; |
| 198 | } |
| 199 | |
| 200 | guint lttv_trace_get_ref_number(LttvTrace * t) |
| 201 | { |
| 202 | return t->ref_count; |
| 203 | } |
| 204 | |
| 205 | guint lttv_trace_ref(LttvTrace * t) |
| 206 | { |
| 207 | t->ref_count++; |
| 208 | |
| 209 | return t->ref_count; |
| 210 | } |
| 211 | |
| 212 | guint lttv_trace_unref(LttvTrace * t) |
| 213 | { |
| 214 | if(likely(t->ref_count > 0)) |
| 215 | t->ref_count--; |
| 216 | |
| 217 | return t->ref_count; |
| 218 | } |
| 219 | |