1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Michel Dagenais
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;
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.
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,
23 #include <lttv/traceset.h>
24 #include <lttv/iattribute.h>
25 #include <lttv/state.h>
26 #include <lttv/hook.h>
28 #include <babeltrace/context.h>
29 #include <babeltrace/iterator.h>
30 #include <babeltrace/ctf/events.h>
32 /* To traverse a tree recursively */
36 /* A trace is a sequence of events gathered in the same tracing session. The
37 events may be stored in several tracefiles in the same directory.
38 A trace set is defined when several traces are to be analyzed together,
39 possibly to study the interactions between events in the different traces.
43 LttvTraceset
*lttv_traceset_new(void)
46 struct bt_iter_pos begin_pos
;
48 s
= g_new(LttvTraceset
, 1);
50 s
->traces
= g_ptr_array_new();
51 s
->context
= bt_context_create();
52 s
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
53 //TODO remove this when we have really mecanism
54 //s->tmpState = g_new(LttvTraceState *, 1);
55 //lttv_trace_state_init(s->tmpState,0);
56 begin_pos
.type
= BT_SEEK_BEGIN
;
58 //s->iter = bt_ctf_iter_create(lttv_traceset_get_context(s),
62 s
->event_hooks
= lttv_hooks_new();
70 char * lttv_traceset_name(LttvTraceset
* s
)
76 LttvTrace
*lttv_trace_new(LttTrace
*t
)
80 new_trace
= g_new(LttvTrace
, 1);
81 new_trace
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
83 new_trace
->ref_count
= 0;
89 * lttv_trace_create : Create a trace from a path
91 * ts is the traceset in which will be contained the trace
93 * path is the path where to find a trace. It is not recursive.
95 * This function is static since a trace should always be contained in a
98 * return the created trace or NULL on failure
100 static LttvTrace
*lttv_trace_create(LttvTraceset
*ts
, const char *path
)
102 int id
= bt_context_add_trace(lttv_traceset_get_context(ts
),
111 // Create the trace and save the trace handle id returned by babeltrace
112 LttvTrace
*new_trace
;
114 new_trace
= g_new(LttvTrace
, 1);
115 new_trace
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
117 new_trace
->ref_count
= 0;
118 new_trace
->traceset
= ts
;
119 new_trace
->state
= g_new(LttvTraceState
,1);
120 lttv_trace_state_init(new_trace
->state
,new_trace
);
121 ts
->tmpState
= new_trace
->state
;
126 * lttv_trace_create : Create and add a single trace to a traceset
128 * ts is the traceset in which will be contained the trace
130 * path is the path where to find a trace. It is not recursive.
132 * return a positive integer (>=0)on success or -1 on failure
134 static int lttv_traceset_create_trace(LttvTraceset
*ts
, const char *path
)
136 LttvTrace
*trace
= lttv_trace_create(ts
, path
);
140 lttv_traceset_add(ts
, trace
);
144 LttvTraceset
*lttv_traceset_copy(LttvTraceset
*s_orig
)
150 s
= g_new(LttvTraceset
, 1);
152 s
->traces
= g_ptr_array_new();
153 for(i
=0;i
<s_orig
->traces
->len
;i
++)
155 trace
= g_ptr_array_index(s_orig
->traces
, i
);
158 /* WARNING: this is an alias, not a copy. */
159 g_ptr_array_add(s
->traces
, trace
);
161 s
->context
= s_orig
->context
;
162 bt_context_get(s
->context
);
163 s
->a
= LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig
->a
)));
168 LttvTraceset
*lttv_traceset_load(const gchar
*filename
)
170 LttvTraceset
*s
= g_new(LttvTraceset
,1);
173 s
->filename
= g_strdup(filename
);
174 tf
= fopen(filename
,"r");
176 g_critical("NOT IMPLEMENTED : load traceset data from a XML file");
182 gint
lttv_traceset_save(LttvTraceset
*s
)
186 tf
= fopen(s
->filename
, "w");
188 g_critical("NOT IMPLEMENTED : save traceset data in a XML file");
194 void lttv_traceset_destroy(LttvTraceset
*s
)
198 for(i
=0;i
<s
->traces
->len
;i
++) {
199 LttvTrace
*trace
= g_ptr_array_index(s
->traces
, i
);
200 lttv_trace_unref(trace
);
201 // todo mdenis 2012-03-27: uncomment when babeltrace gets fixed
202 //bt_context_remove_trace(lttv_traceset_get_context(s), trace->id);
203 if(lttv_trace_get_ref_number(trace
) == 0)
204 lttv_trace_destroy(trace
);
206 g_ptr_array_free(s
->traces
, TRUE
);
207 bt_context_put(s
->context
);
208 g_object_unref(s
->a
);
212 struct bt_context
*lttv_traceset_get_context(LttvTraceset
*s
)
217 LttvTraceset
*lttv_trace_get_traceset(LttvTrace
*trace
)
219 return trace
->traceset
;
222 LttvHooks
*lttv_traceset_get_hooks(LttvTraceset
*s
)
224 return s
->event_hooks
;
227 void lttv_trace_destroy(LttvTrace
*t
)
229 g_object_unref(t
->a
);
234 void lttv_traceset_add(LttvTraceset
*s
, LttvTrace
*t
)
237 g_ptr_array_add(s
->traces
, t
);
240 int lttv_traceset_add_path(LttvTraceset
*ts
, char *trace_path
)
244 char * const paths
[2] = { trace_path
, NULL
};
247 tree
= fts_open(paths
, FTS_NOCHDIR
| FTS_LOGICAL
, 0);
249 g_warning("Cannot traverse \"%s\" for reading.\n",
255 while ((node
= fts_read(tree
))) {
257 if (!(node
->fts_info
& FTS_D
))
260 dirfd
= open(node
->fts_accpath
, 0);
262 g_warning("Unable to open trace "
263 "directory file descriptor : %s.", node
->fts_accpath
);
268 // Check if a metadata file exists in the current directory
269 metafd
= openat(dirfd
, "metadata", O_RDONLY
);
273 g_warning("Unable to open metadata "
274 "file descriptor : %s.", node
->fts_accpath
);
280 g_warning("Unable to close metadata "
281 "file descriptor : %s.", node
->fts_accpath
);
286 g_warning("Unable to close trace "
287 "directory file descriptor : %s.", node
->fts_accpath
);
291 ret
= lttv_traceset_create_trace(ts
, node
->fts_accpath
);
293 g_warning("Opening trace \"%s\" from %s "
294 "for reading.", node
->fts_accpath
, trace_path
);
301 ret
= fts_close(tree
);
303 g_warning("Unable to close tree "
304 "file descriptor : %s.", trace_path
);
309 unsigned lttv_traceset_number(LttvTraceset
*s
)
311 return s
->traces
->len
;
315 LttvTrace
*lttv_traceset_get(LttvTraceset
*s
, unsigned i
)
317 g_assert(s
->traces
->len
> i
);
318 return ((LttvTrace
*)s
->traces
->pdata
[i
]);
322 void lttv_traceset_remove(LttvTraceset
*s
, unsigned i
)
325 g_assert(s
->traces
->len
> i
);
326 t
= (LttvTrace
*)s
->traces
->pdata
[i
];
328 bt_context_remove_trace(lttv_traceset_get_context(s
), t
->id
);
329 g_ptr_array_remove_index(s
->traces
, i
);
333 /* A set of attributes is attached to each trace set, trace and tracefile
334 to store user defined data as needed. */
336 LttvAttribute
*lttv_traceset_attribute(LttvTraceset
*s
)
342 LttvAttribute
*lttv_trace_attribute(LttvTrace
*t
)
348 LttTrace
*lttv_trace(LttvTrace
*t
)
354 gint
lttv_trace_get_id(LttvTrace
*t
)
359 guint
lttv_trace_get_ref_number(LttvTrace
* t
)
361 // todo mdenis: adapt to babeltrace
365 guint
lttv_trace_ref(LttvTrace
* t
)
372 guint
lttv_trace_unref(LttvTrace
* t
)
374 if(likely(t
->ref_count
> 0))
380 guint
lttv_trace_get_num_cpu(LttvTrace
*t
)
382 #warning "TODO - Set the right number of CPU"
386 LttvTracesetPosition
*lttv_traceset_create_position(LttvTraceset
*traceset
)
392 void lttv_traceset_destroy_position(LttvTracesetPosition
*traceset_pos
)
398 void lttv_traceset_seek_to_position(LttvTracesetPosition
*traceset_pos
)
403 guint
lttv_traceset_get_cpuid_from_event(LttvEvent
*event
)
405 struct definition
*scope
;
406 unsigned long timestamp
;
409 struct bt_ctf_event
*ctf_event
= event
->bt_event
;
410 timestamp
= bt_ctf_get_timestamp(ctf_event
);
411 if (timestamp
== -1ULL) {
414 scope
= bt_ctf_get_top_level_scope(ctf_event
, BT_STREAM_PACKET_CONTEXT
);
415 if (bt_ctf_field_get_error()) {
418 cpu_id
= bt_ctf_get_uint64(bt_ctf_get_field(ctf_event
, scope
, "cpu_id"));
419 if (bt_ctf_field_get_error()) {
426 const char *lttv_traceset_get_name_from_event(LttvEvent
*event
)
428 return bt_ctf_event_name(event
->bt_event
);
This page took 0.039959 seconds and 4 git commands to generate.