2 * BabelTrace - Common Trace Format (CTF)
4 * CTF Text Format registration.
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
21 #include <babeltrace/format.h>
22 #include <babeltrace/ctf-text/types.h>
23 #include <babeltrace/ctf/metadata.h>
24 #include <babeltrace/babeltrace-internal.h>
26 #include <uuid/uuid.h>
29 #include <sys/types.h>
37 #define NSEC_PER_SEC 1000000000ULL
39 int opt_all_field_names
,
40 opt_scope_field_names
,
41 opt_header_field_names
,
42 opt_context_field_names
,
43 opt_payload_field_names
,
46 opt_trace_domain_field
,
47 opt_trace_procname_field
,
59 struct trace_descriptor
*ctf_text_open_trace(const char *collection_path
,
60 const char *path
, int flags
,
61 void (*move_pos_slow
)(struct ctf_stream_pos
*pos
, size_t offset
,
62 int whence
), FILE *metadata_fp
);
63 void ctf_text_close_trace(struct trace_descriptor
*descriptor
);
66 rw_dispatch write_dispatch_table
[] = {
67 [ CTF_TYPE_INTEGER
] = ctf_text_integer_write
,
68 [ CTF_TYPE_FLOAT
] = ctf_text_float_write
,
69 [ CTF_TYPE_ENUM
] = ctf_text_enum_write
,
70 [ CTF_TYPE_STRING
] = ctf_text_string_write
,
71 [ CTF_TYPE_STRUCT
] = ctf_text_struct_write
,
72 [ CTF_TYPE_VARIANT
] = ctf_text_variant_write
,
73 [ CTF_TYPE_ARRAY
] = ctf_text_array_write
,
74 [ CTF_TYPE_SEQUENCE
] = ctf_text_sequence_write
,
78 struct format ctf_text_format
= {
79 .open_trace
= ctf_text_open_trace
,
80 .close_trace
= ctf_text_close_trace
,
83 static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN
,
84 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END
,
85 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED
,
86 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE
,
87 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE
;
90 void __attribute__((constructor
)) init_quarks(void)
92 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN
= g_quark_from_static_string("stream.packet.context.timestamp_begin");
93 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END
= g_quark_from_static_string("stream.packet.context.timestamp_end");
94 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED
= g_quark_from_static_string("stream.packet.context.events_discarded");
95 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE
= g_quark_from_static_string("stream.packet.context.content_size");
96 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE
= g_quark_from_static_string("stream.packet.context.packet_size");
99 int print_field(struct definition
*definition
)
101 /* Print all fields in verbose mode */
102 if (babeltrace_verbose
)
105 /* Filter out part of the packet context */
106 if (definition
->path
== Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN
)
108 if (definition
->path
== Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END
)
110 if (definition
->path
== Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED
)
112 if (definition
->path
== Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE
)
114 if (definition
->path
== Q_STREAM_PACKET_CONTEXT_PACKET_SIZE
)
121 void set_field_names_print(struct ctf_text_stream_pos
*pos
, enum field_item item
)
125 if (opt_all_field_names
|| opt_scope_field_names
)
126 pos
->print_names
= 1;
128 pos
->print_names
= 0;
131 if (opt_all_field_names
|| opt_header_field_names
)
132 pos
->print_names
= 1;
134 pos
->print_names
= 0;
137 if (opt_all_field_names
|| opt_context_field_names
)
138 pos
->print_names
= 1;
140 pos
->print_names
= 0;
143 if (opt_all_field_names
|| opt_payload_field_names
)
144 pos
->print_names
= 1;
146 pos
->print_names
= 0;
155 int ctf_text_write_event(struct stream_pos
*ppos
,
156 struct ctf_stream
*stream
)
158 struct ctf_text_stream_pos
*pos
=
159 container_of(ppos
, struct ctf_text_stream_pos
, parent
);
160 struct ctf_stream_class
*stream_class
= stream
->stream_class
;
162 struct ctf_event
*event_class
;
163 struct ctf_stream_event
*event
;
168 id
= stream
->event_id
;
170 if (id
>= stream_class
->events_by_id
->len
) {
171 fprintf(stderr
, "[error] Event id %" PRIu64
" is outside range.\n", id
);
174 event
= g_ptr_array_index(stream
->events_by_id
, id
);
176 fprintf(stderr
, "[error] Event id %" PRIu64
" is unknown.\n", id
);
179 event_class
= g_ptr_array_index(stream_class
->events_by_id
, id
);
181 fprintf(stderr
, "[error] Event id %" PRIu64
" is unknown.\n", id
);
185 if (stream
->has_timestamp
) {
186 uint64_t ts_sec
, ts_nsec
;
188 ts_sec
= stream
->timestamp
/ NSEC_PER_SEC
;
189 ts_nsec
= stream
->timestamp
% NSEC_PER_SEC
;
190 set_field_names_print(pos
, ITEM_HEADER
);
191 if (pos
->print_names
)
192 fprintf(pos
->fp
, "timestamp = ");
194 fprintf(pos
->fp
, "[");
195 fprintf(pos
->fp
, "%3" PRIu64
".%09" PRIu64
,
197 if (!pos
->print_names
)
198 fprintf(pos
->fp
, "]");
200 if (pos
->print_names
)
201 fprintf(pos
->fp
, ", ");
203 fprintf(pos
->fp
, " ");
205 if ((opt_delta_field
|| opt_all_fields
) && stream
->has_timestamp
) {
206 uint64_t delta
, delta_sec
, delta_nsec
;
208 set_field_names_print(pos
, ITEM_HEADER
);
209 if (pos
->print_names
)
210 fprintf(pos
->fp
, "delta = ");
212 fprintf(pos
->fp
, "(");
213 if (pos
->last_timestamp
!= -1ULL) {
214 delta
= stream
->timestamp
- pos
->last_timestamp
;
215 delta_sec
= delta
/ NSEC_PER_SEC
;
216 delta_nsec
= delta
% NSEC_PER_SEC
;
217 fprintf(pos
->fp
, "+%" PRIu64
".%09" PRIu64
,
218 delta_sec
, delta_nsec
);
220 fprintf(pos
->fp
, "+?.?????????");
222 if (!pos
->print_names
)
223 fprintf(pos
->fp
, ")");
225 if (pos
->print_names
)
226 fprintf(pos
->fp
, ", ");
228 fprintf(pos
->fp
, " ");
229 pos
->last_timestamp
= stream
->timestamp
;
232 if ((opt_trace_field
|| opt_all_fields
) && stream_class
->trace
->path
[0] != '\0') {
233 set_field_names_print(pos
, ITEM_HEADER
);
234 if (pos
->print_names
) {
235 fprintf(pos
->fp
, "trace = ");
237 fprintf(pos
->fp
, "%s", stream_class
->trace
->path
);
238 if (pos
->print_names
)
239 fprintf(pos
->fp
, ", ");
241 fprintf(pos
->fp
, " ");
243 if ((opt_trace_domain_field
&& !opt_all_fields
) && stream_class
->trace
->domain
[0] != '\0') {
244 set_field_names_print(pos
, ITEM_HEADER
);
245 if (pos
->print_names
) {
246 fprintf(pos
->fp
, "trace:domain = ");
248 fprintf(pos
->fp
, "%s", stream_class
->trace
->domain
);
249 if (pos
->print_names
)
250 fprintf(pos
->fp
, ", ");
253 if ((opt_trace_procname_field
&& !opt_all_fields
) && stream_class
->trace
->procname
[0] != '\0') {
254 set_field_names_print(pos
, ITEM_HEADER
);
255 if (pos
->print_names
) {
256 fprintf(pos
->fp
, "trace:procname = ");
257 } else if (dom_print
) {
258 fprintf(pos
->fp
, ":");
260 fprintf(pos
->fp
, "%s", stream_class
->trace
->procname
);
261 if (pos
->print_names
)
262 fprintf(pos
->fp
, ", ");
265 if ((opt_trace_vpid_field
&& !opt_all_fields
) && stream_class
->trace
->vpid
[0] != '\0') {
266 set_field_names_print(pos
, ITEM_HEADER
);
267 if (pos
->print_names
) {
268 fprintf(pos
->fp
, "trace:vpid = ");
269 } else if (dom_print
) {
270 fprintf(pos
->fp
, ":");
272 fprintf(pos
->fp
, "%s", stream_class
->trace
->vpid
);
273 if (pos
->print_names
)
274 fprintf(pos
->fp
, ", ");
277 if ((opt_loglevel_field
|| opt_all_fields
) && event_class
->loglevel_identifier
!= 0) {
278 set_field_names_print(pos
, ITEM_HEADER
);
279 if (pos
->print_names
) {
280 fprintf(pos
->fp
, "loglevel = ");
281 } else if (dom_print
) {
282 fprintf(pos
->fp
, ":");
284 fprintf(pos
->fp
, "%s (%lld)",
285 g_quark_to_string(event_class
->loglevel_identifier
),
286 (long long) event_class
->loglevel_value
);
287 if (pos
->print_names
)
288 fprintf(pos
->fp
, ", ");
291 if (dom_print
&& !pos
->print_names
)
292 fprintf(pos
->fp
, " ");
293 set_field_names_print(pos
, ITEM_HEADER
);
294 if (pos
->print_names
)
295 fprintf(pos
->fp
, "name = ");
296 fprintf(pos
->fp
, "%s", g_quark_to_string(event_class
->name
));
297 if (pos
->print_names
)
300 fprintf(pos
->fp
, ":");
302 /* print cpuid field from packet context */
303 if (stream
->stream_packet_context
) {
304 if (pos
->field_nr
++ != 0)
305 fprintf(pos
->fp
, ",");
306 set_field_names_print(pos
, ITEM_SCOPE
);
307 if (pos
->print_names
)
308 fprintf(pos
->fp
, " stream.packet.context =");
309 field_nr_saved
= pos
->field_nr
;
311 set_field_names_print(pos
, ITEM_CONTEXT
);
312 ret
= generic_rw(ppos
, &stream
->stream_packet_context
->p
);
315 pos
->field_nr
= field_nr_saved
;
318 /* Only show the event header in verbose mode */
319 if (babeltrace_verbose
&& stream
->stream_event_header
) {
320 if (pos
->field_nr
++ != 0)
321 fprintf(pos
->fp
, ",");
322 set_field_names_print(pos
, ITEM_SCOPE
);
323 if (pos
->print_names
)
324 fprintf(pos
->fp
, " stream.event.header =");
325 field_nr_saved
= pos
->field_nr
;
327 set_field_names_print(pos
, ITEM_CONTEXT
);
328 ret
= generic_rw(ppos
, &stream
->stream_event_header
->p
);
331 pos
->field_nr
= field_nr_saved
;
334 /* print stream-declared event context */
335 if (stream
->stream_event_context
) {
336 if (pos
->field_nr
++ != 0)
337 fprintf(pos
->fp
, ",");
338 set_field_names_print(pos
, ITEM_SCOPE
);
339 if (pos
->print_names
)
340 fprintf(pos
->fp
, " stream.event.context =");
341 field_nr_saved
= pos
->field_nr
;
343 set_field_names_print(pos
, ITEM_CONTEXT
);
344 ret
= generic_rw(ppos
, &stream
->stream_event_context
->p
);
347 pos
->field_nr
= field_nr_saved
;
350 /* print event-declared event context */
351 if (event
->event_context
) {
352 if (pos
->field_nr
++ != 0)
353 fprintf(pos
->fp
, ",");
354 set_field_names_print(pos
, ITEM_SCOPE
);
355 if (pos
->print_names
)
356 fprintf(pos
->fp
, " event.context =");
357 field_nr_saved
= pos
->field_nr
;
359 set_field_names_print(pos
, ITEM_CONTEXT
);
360 ret
= generic_rw(ppos
, &event
->event_context
->p
);
363 pos
->field_nr
= field_nr_saved
;
366 /* Read and print event payload */
367 if (event
->event_fields
) {
368 if (pos
->field_nr
++ != 0)
369 fprintf(pos
->fp
, ",");
370 set_field_names_print(pos
, ITEM_SCOPE
);
371 if (pos
->print_names
)
372 fprintf(pos
->fp
, " event.fields =");
373 field_nr_saved
= pos
->field_nr
;
375 set_field_names_print(pos
, ITEM_PAYLOAD
);
376 ret
= generic_rw(ppos
, &event
->event_fields
->p
);
379 pos
->field_nr
= field_nr_saved
;
382 fprintf(pos
->fp
, "\n");
388 fprintf(stderr
, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
393 struct trace_descriptor
*ctf_text_open_trace(const char *collection_path
,
394 const char *path
, int flags
,
395 void (*move_pos_slow
)(struct ctf_stream_pos
*pos
, size_t offset
,
396 int whence
), FILE *metadata_fp
)
398 struct ctf_text_stream_pos
*pos
;
401 pos
= g_new0(struct ctf_text_stream_pos
, 1);
403 pos
->last_timestamp
= -1ULL;
404 switch (flags
& O_ACCMODE
) {
409 fp
= fopen(path
, "w");
413 pos
->parent
.rw_table
= write_dispatch_table
;
414 pos
->parent
.event_cb
= ctf_text_write_event
;
415 pos
->print_names
= 0;
419 fprintf(stderr
, "[error] Incorrect open flags.\n");
423 return &pos
->trace_descriptor
;
429 void ctf_text_close_trace(struct trace_descriptor
*td
)
431 struct ctf_text_stream_pos
*pos
=
432 container_of(td
, struct ctf_text_stream_pos
, trace_descriptor
);
437 void __attribute__((constructor
)) ctf_text_init(void)
441 ctf_text_format
.name
= g_quark_from_static_string("text");
442 ret
= bt_register_format(&ctf_text_format
);