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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 | |
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19 | |
20 | #include <lttv/traceset.h> |
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21 | #include <lttv/iattribute.h> |
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22 | #include <stdio.h> |
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23 | |
24 | /* A trace is a sequence of events gathered in the same tracing session. The |
25 | events may be stored in several tracefiles in the same directory. |
26 | A trace set is defined when several traces are to be analyzed together, |
27 | possibly to study the interactions between events in the different traces. |
28 | */ |
29 | |
30 | struct _LttvTraceset { |
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31 | char * filename; |
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32 | GPtrArray *traces; |
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33 | LttvAttribute *a; |
34 | }; |
35 | |
36 | |
37 | struct _LttvTrace { |
38 | LttTrace *t; |
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39 | LttvAttribute *a; |
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40 | guint ref_count; |
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41 | }; |
42 | |
43 | |
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44 | LttvTraceset *lttv_traceset_new() |
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45 | { |
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46 | LttvTraceset *s; |
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47 | |
48 | s = g_new(LttvTraceset, 1); |
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49 | s->filename = NULL; |
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50 | s->traces = g_ptr_array_new(); |
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51 | s->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
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52 | return s; |
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53 | } |
54 | |
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55 | char * lttv_traceset_name(LttvTraceset * s) |
56 | { |
57 | return s->filename; |
58 | } |
59 | |
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60 | LttvTrace *lttv_trace_new(LttTrace *t) |
61 | { |
62 | LttvTrace *new_trace; |
63 | |
64 | new_trace = g_new(LttvTrace, 1); |
65 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
66 | new_trace->t = t; |
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67 | new_trace->ref_count = 0; |
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68 | return new_trace; |
69 | } |
70 | |
71 | |
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72 | LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) |
73 | { |
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74 | guint i; |
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75 | LttvTraceset *s; |
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76 | LttvTrace * trace; |
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77 | |
78 | s = g_new(LttvTraceset, 1); |
79 | s->filename = NULL; |
80 | s->traces = g_ptr_array_new(); |
81 | for(i=0;i<s_orig->traces->len;i++) |
82 | { |
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83 | trace = g_ptr_array_index(s_orig->traces, i); |
84 | trace->ref_count++; |
85 | |
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86 | g_ptr_array_add(s->traces, |
87 | trace); |
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88 | } |
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89 | s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a))); |
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90 | return s; |
91 | } |
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92 | |
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93 | |
94 | LttvTraceset *lttv_traceset_load(const gchar *filename) |
95 | { |
96 | LttvTraceset *s = g_new(LttvTraceset,1); |
97 | FILE *tf; |
98 | |
99 | s->filename = g_strdup(filename); |
100 | tf = fopen(filename,"r"); |
101 | |
102 | g_critical("NOT IMPLEMENTED : load traceset data from a XML file"); |
103 | |
104 | fclose(tf); |
105 | return s; |
106 | } |
107 | |
108 | gint lttv_traceset_save(LttvTraceset *s) |
109 | { |
110 | FILE *tf; |
111 | |
112 | tf = fopen(s->filename, "w"); |
113 | |
114 | g_critical("NOT IMPLEMENTED : save traceset data in a XML file"); |
115 | |
116 | fclose(tf); |
117 | return 0; |
118 | } |
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119 | |
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120 | void lttv_traceset_destroy(LttvTraceset *s) |
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121 | { |
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122 | guint i; |
123 | |
124 | for(i=0;i<s->traces->len;i++) { |
125 | LttvTrace *trace = g_ptr_array_index(s->traces, i); |
126 | lttv_trace_unref(trace); |
127 | if(lttv_trace_get_ref_number(trace) == 0) |
128 | lttv_trace_destroy(trace); |
129 | } |
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130 | g_ptr_array_free(s->traces, TRUE); |
131 | g_object_unref(s->a); |
132 | g_free(s); |
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133 | } |
134 | |
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135 | void lttv_trace_destroy(LttvTrace *t) |
136 | { |
137 | g_object_unref(t->a); |
138 | g_free(t); |
139 | } |
140 | |
141 | |
142 | void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) |
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143 | { |
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144 | t->ref_count++; |
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145 | g_ptr_array_add(s->traces, t); |
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146 | } |
147 | |
148 | |
149 | unsigned lttv_traceset_number(LttvTraceset *s) |
150 | { |
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151 | return s->traces->len; |
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152 | } |
153 | |
154 | |
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155 | LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i) |
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156 | { |
157 | g_assert(s->traces->len > i); |
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158 | return ((LttvTrace *)s->traces->pdata[i]); |
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159 | } |
160 | |
161 | |
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162 | void lttv_traceset_remove(LttvTraceset *s, unsigned i) |
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163 | { |
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164 | LttvTrace * t; |
165 | g_assert(s->traces->len > i); |
166 | t = (LttvTrace *)s->traces->pdata[i]; |
167 | t->ref_count--; |
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168 | g_ptr_array_remove_index(s->traces, i); |
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169 | } |
170 | |
171 | |
172 | /* A set of attributes is attached to each trace set, trace and tracefile |
173 | to store user defined data as needed. */ |
174 | |
175 | LttvAttribute *lttv_traceset_attribute(LttvTraceset *s) |
176 | { |
177 | return s->a; |
178 | } |
179 | |
180 | |
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181 | LttvAttribute *lttv_trace_attribute(LttvTrace *t) |
182 | { |
183 | return t->a; |
184 | } |
185 | |
186 | |
187 | LttTrace *lttv_trace(LttvTrace *t) |
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188 | { |
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189 | return t->t; |
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190 | } |
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191 | |
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192 | guint lttv_trace_get_ref_number(LttvTrace * t) |
193 | { |
194 | return t->ref_count; |
195 | } |
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196 | |
197 | guint lttv_trace_ref(LttvTrace * t) |
198 | { |
199 | t->ref_count++; |
200 | |
201 | return t->ref_count; |
202 | } |
203 | |
204 | guint lttv_trace_unref(LttvTrace * t) |
205 | { |
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206 | if(likely(t->ref_count > 0)) |
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207 | t->ref_count--; |
208 | |
209 | return t->ref_count; |
210 | } |
211 | |