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24a3136a DS |
1 | /* |
2 | * babeltrace.i.in | |
3 | * | |
4 | * Babeltrace Python Module interface file | |
5 | * | |
6 | * Copyright 2012 EfficiOS Inc. | |
7 | * | |
8 | * Author: Danny Serres <danny.serres@efficios.com> | |
74ea15ad | 9 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
24a3136a DS |
10 | * |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
17 | * | |
18 | * The above copyright notice and this permission notice shall be included in | |
19 | * all copies or substantial portions of the Software. | |
20 | */ | |
21 | ||
22 | ||
23 | %define DOCSTRING | |
24 | "BABELTRACE_VERSION_STR | |
25 | ||
26 | Babeltrace is a trace viewer and converter reading and writing the | |
27 | Common Trace Format (CTF). Its main use is to pretty-print CTF | |
28 | traces into a human-readable text output. | |
29 | ||
74ea15ad | 30 | To use this module, the first step is to create a TraceCollection and add a |
24a3136a DS |
31 | trace to it." |
32 | %enddef | |
33 | ||
34 | %module(docstring=DOCSTRING) babeltrace | |
35 | ||
36 | %include "typemaps.i" | |
37 | %{ | |
38 | #define SWIG_FILE_WITH_INIT | |
39 | #include <babeltrace/babeltrace.h> | |
40 | #include <babeltrace/babeltrace-internal.h> | |
41 | #include <babeltrace/trace-handle.h> | |
42 | #include <babeltrace/trace-handle-internal.h> | |
43 | #include <babeltrace/context.h> | |
44 | #include <babeltrace/context-internal.h> | |
45 | #include <babeltrace/iterator.h> | |
46 | #include <babeltrace/iterator-internal.h> | |
47 | #include <babeltrace/format.h> | |
48 | #include <babeltrace/list.h> | |
24a3136a DS |
49 | #include <babeltrace/types.h> |
50 | #include <babeltrace/ctf/iterator.h> | |
51 | #include "python-complements.h" | |
ec8c88d7 JG |
52 | #include <babeltrace/ctf-writer/clock.h> |
53 | #include <babeltrace/ctf-writer/event-fields.h> | |
54 | #include <babeltrace/ctf-writer/event-types.h> | |
55 | #include <babeltrace/ctf-writer/event.h> | |
56 | #include <babeltrace/ctf-writer/stream.h> | |
57 | #include <babeltrace/ctf-writer/writer.h> | |
24a3136a DS |
58 | %} |
59 | ||
60 | typedef unsigned long long uint64_t; | |
61 | typedef long long int64_t; | |
62 | typedef int bt_intern_str; | |
63 | ||
cebae8c3 JG |
64 | /* ================================================================= |
65 | PYTHON-COMPLEMENTS.H | |
66 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
67 | */ | |
68 | ||
69 | FILE *_bt_file_open(char *file_path, char *mode); | |
70 | void _bt_file_close(FILE *fp); | |
71 | struct bt_definition **_bt_python_field_listcaller( | |
72 | const struct bt_ctf_event *ctf_event, | |
73 | const struct bt_definition *scope, | |
74 | unsigned int *OUTPUT); | |
75 | struct bt_definition *_bt_python_field_one_from_list( | |
76 | struct bt_definition **list, int index); | |
77 | struct bt_ctf_event_decl **_bt_python_event_decl_listcaller( | |
78 | int handle_id, | |
79 | struct bt_context *ctx, | |
80 | unsigned int *OUTPUT); | |
81 | struct bt_ctf_event_decl *_bt_python_decl_one_from_list( | |
82 | struct bt_ctf_event_decl **list, int index); | |
83 | struct bt_ctf_field_decl **_by_python_field_decl_listcaller( | |
84 | struct bt_ctf_event_decl *event_decl, | |
85 | enum bt_ctf_scope scope, | |
86 | unsigned int *OUTPUT); | |
87 | struct bt_ctf_field_decl *_bt_python_field_decl_one_from_list( | |
88 | struct bt_ctf_field_decl **list, int index); | |
89 | struct definition_array *_bt_python_get_array_from_def( | |
90 | struct bt_definition *field); | |
91 | struct definition_sequence *_bt_python_get_sequence_from_def( | |
92 | struct bt_definition *field); | |
ec8c88d7 JG |
93 | int _bt_python_field_integer_get_signedness(const struct bt_ctf_field *field); |
94 | enum ctf_type_id _bt_python_get_field_type(const struct bt_ctf_field *field); | |
cebae8c3 | 95 | |
24a3136a DS |
96 | /* ================================================================= |
97 | CONTEXT.H, CONTEXT-INTERNAL.H | |
98 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
99 | */ | |
100 | ||
101 | %rename("_bt_context_create") bt_context_create(void); | |
102 | %rename("_bt_context_add_trace") bt_context_add_trace( | |
103 | struct bt_context *ctx, const char *path, const char *format, | |
2c0df204 XH |
104 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, int whence), |
105 | struct bt_mmap_stream_list *stream_list, FILE *metadata); | |
24a3136a DS |
106 | %rename("_bt_context_remove_trace") bt_context_remove_trace( |
107 | struct bt_context *ctx, int trace_id); | |
108 | %rename("_bt_context_get") bt_context_get(struct bt_context *ctx); | |
109 | %rename("_bt_context_put") bt_context_put(struct bt_context *ctx); | |
110 | %rename("_bt_ctf_event_get_context") bt_ctf_event_get_context( | |
111 | const struct bt_ctf_event *event); | |
112 | ||
113 | struct bt_context *bt_context_create(void); | |
114 | int bt_context_add_trace(struct bt_context *ctx, const char *path, const char *format, | |
2c0df204 XH |
115 | void (*packet_seek)(struct bt_stream_pos *pos, size_t index, int whence), |
116 | struct bt_mmap_stream_list *stream_list, FILE *metadata); | |
24a3136a DS |
117 | void bt_context_remove_trace(struct bt_context *ctx, int trace_id); |
118 | void bt_context_get(struct bt_context *ctx); | |
119 | void bt_context_put(struct bt_context *ctx); | |
120 | struct bt_context *bt_ctf_event_get_context(const struct bt_ctf_event *event); | |
121 | ||
74ea15ad | 122 | // class TraceCollection to prevent direct access to struct bt_context |
24a3136a | 123 | %pythoncode%{ |
74ea15ad | 124 | class TraceCollection: |
24a3136a | 125 | """ |
74ea15ad | 126 | The TraceCollection is the object that contains all currently opened traces. |
24a3136a DS |
127 | """ |
128 | ||
129 | def __init__(self): | |
74ea15ad | 130 | self._tc = _bt_context_create() |
24a3136a DS |
131 | |
132 | def __del__(self): | |
74ea15ad | 133 | _bt_context_put(self._tc) |
24a3136a | 134 | |
74ea15ad | 135 | def add_trace(self, path, format_str): |
24a3136a | 136 | """ |
74ea15ad | 137 | Add a trace by path to the TraceCollection. |
24a3136a DS |
138 | |
139 | Open a trace. | |
140 | ||
141 | path is the path to the trace, it is not recursive. | |
142 | If "path" is None, stream_list is used instead as a list | |
143 | of mmap streams to open for the trace. | |
144 | ||
145 | format is a string containing the format name in which the trace was | |
146 | produced. | |
147 | ||
24a3136a DS |
148 | Return: the corresponding TraceHandle on success or None on error. |
149 | """ | |
74ea15ad JG |
150 | ret = _bt_context_add_trace(self._tc, path, format_str, None, |
151 | None, None) | |
24a3136a DS |
152 | if ret < 0: |
153 | return None | |
154 | ||
155 | th = TraceHandle.__new__(TraceHandle) | |
156 | th._id = ret | |
157 | return th | |
158 | ||
159 | def add_traces_recursive(self, path, format_str): | |
160 | """ | |
161 | Open a trace recursively. | |
162 | ||
163 | Find each trace present in the subdirectory starting from the given | |
74ea15ad | 164 | path, and add them to the TraceCollection. |
24a3136a DS |
165 | |
166 | Return a dict of TraceHandle instances (the full path is the key). | |
167 | Return None on error. | |
168 | """ | |
169 | ||
170 | import os | |
171 | ||
172 | trace_handles = {} | |
173 | ||
174 | noTrace = True | |
175 | error = False | |
176 | ||
177 | for fullpath, dirs, files in os.walk(path): | |
178 | if "metadata" in files: | |
179 | trace_handle = self.add_trace(fullpath, format_str) | |
180 | if trace_handle is None: | |
181 | error = True | |
182 | continue | |
183 | ||
184 | trace_handles[fullpath] = trace_handle | |
185 | noTrace = False | |
186 | ||
187 | if noTrace and error: | |
188 | return None | |
189 | return trace_handles | |
190 | ||
191 | def remove_trace(self, trace_handle): | |
192 | """ | |
74ea15ad | 193 | Remove a trace from the TraceCollection. |
24a3136a DS |
194 | Effectively closing the trace. |
195 | """ | |
196 | try: | |
74ea15ad | 197 | _bt_context_remove_trace(self._tc, trace_handle._id) |
24a3136a DS |
198 | except AttributeError: |
199 | raise TypeError("in remove_trace, " | |
200 | "argument 2 must be a TraceHandle instance") | |
74ea15ad JG |
201 | |
202 | @property | |
203 | def events(self): | |
204 | """ | |
205 | Generator function to iterate over the events of open in the current | |
206 | TraceCollection. | |
207 | """ | |
208 | begin_pos_ptr = _bt_iter_pos() | |
209 | end_pos_ptr = _bt_iter_pos() | |
210 | begin_pos_ptr.type = SEEK_BEGIN | |
211 | end_pos_ptr.type = SEEK_LAST | |
212 | ||
213 | for event in self._events(begin_pos_ptr, end_pos_ptr): | |
214 | yield event | |
215 | ||
216 | def events_timestamps(self, timestamp_begin, timestamp_end): | |
217 | """ | |
218 | Generator function to iterate over the events of open in the current | |
219 | TraceCollection from timestamp_begin to timestamp_end. | |
220 | """ | |
221 | begin_pos_ptr = _bt_iter_pos() | |
222 | end_pos_ptr = _bt_iter_pos() | |
223 | begin_pos_ptr.type = end_pos_ptr.type = SEEK_TIME | |
224 | begin_pos_ptr.u.seek_time = timestamp_begin | |
225 | end_pos_ptr.u.seek_time = timestamp_end | |
226 | ||
227 | for event in self._events(begin_pos_ptr, end_pos_ptr): | |
228 | yield event | |
229 | ||
230 | @property | |
231 | def timestamp_begin(self): | |
232 | pos_ptr = _bt_iter_pos() | |
233 | pos_ptr.type = SEEK_BEGIN | |
234 | return self._timestamp_at_pos(pos_ptr) | |
235 | ||
236 | @property | |
237 | def timestamp_end(self): | |
238 | pos_ptr = _bt_iter_pos() | |
239 | pos_ptr.type = SEEK_LAST | |
240 | return self._timestamp_at_pos(pos_ptr) | |
241 | ||
242 | def _timestamp_at_pos(self, pos_ptr): | |
243 | ctf_it_ptr = _bt_ctf_iter_create(self._tc, pos_ptr, pos_ptr) | |
244 | if ctf_it_ptr is None: | |
245 | raise NotImplementedError("Creation of multiple iterators is unsupported.") | |
246 | ev_ptr = _bt_ctf_iter_read_event(ctf_it_ptr) | |
247 | _bt_ctf_iter_destroy(ctf_it_ptr) | |
248 | if ev_ptr is None: | |
249 | return None; | |
250 | ||
251 | def _events(self, begin_pos_ptr, end_pos_ptr): | |
252 | ctf_it_ptr = _bt_ctf_iter_create(self._tc, begin_pos_ptr, end_pos_ptr) | |
253 | if ctf_it_ptr is None: | |
254 | raise NotImplementedError( | |
255 | "Creation of multiple iterators is unsupported.") | |
256 | ||
257 | while True: | |
258 | ev_ptr = _bt_ctf_iter_read_event(ctf_it_ptr) | |
259 | if ev_ptr is None: | |
260 | break | |
261 | ||
262 | ev = CTFReader.Event.__new__(CTFReader.Event) | |
263 | ev._e = ev_ptr | |
264 | try: | |
265 | yield ev | |
266 | except GeneratorExit: | |
267 | break | |
268 | ||
269 | ret = _bt_iter_next(_bt_ctf_get_iter(ctf_it_ptr)) | |
270 | if ret != 0: | |
271 | break | |
272 | ||
273 | _bt_ctf_iter_destroy(ctf_it_ptr) | |
274 | ||
24a3136a DS |
275 | %} |
276 | ||
277 | ||
278 | ||
279 | /* ================================================================= | |
280 | FORMAT.H, REGISTRY | |
281 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
282 | */ | |
283 | ||
284 | %rename("lookup_format") bt_lookup_format(bt_intern_str qname); | |
285 | %rename("_bt_print_format_list") bt_fprintf_format_list(FILE *fp); | |
286 | %rename("register_format") bt_register_format(struct format *format); | |
cc26a15a | 287 | %rename("unregister_format") bt_unregister_format(struct bt_format *format); |
24a3136a DS |
288 | |
289 | extern struct format *bt_lookup_format(bt_intern_str qname); | |
290 | extern void bt_fprintf_format_list(FILE *fp); | |
2c0df204 | 291 | extern int bt_register_format(struct bt_format *format); |
cc26a15a | 292 | extern void bt_unregister_format(struct bt_format *format); |
24a3136a | 293 | |
24a3136a DS |
294 | %pythoncode %{ |
295 | ||
296 | def print_format_list(babeltrace_file): | |
297 | """ | |
298 | Print a list of available formats to file. | |
299 | ||
300 | babeltrace_file must be a File instance opened in write mode. | |
301 | """ | |
302 | try: | |
303 | if babeltrace_file._file is not None: | |
304 | _bt_print_format_list(babeltrace_file._file) | |
305 | except AttributeError: | |
306 | raise TypeError("in print_format_list, " | |
307 | "argument 1 must be a File instance") | |
308 | ||
309 | %} | |
310 | ||
311 | ||
312 | /* ================================================================= | |
313 | ITERATOR.H, ITERATOR-INTERNAL.H | |
314 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
315 | */ | |
316 | ||
317 | %rename("_bt_iter_create") bt_iter_create(struct bt_context *ctx, | |
318 | const struct bt_iter_pos *begin_pos, const struct bt_iter_pos *end_pos); | |
319 | %rename("_bt_iter_destroy") bt_iter_destroy(struct bt_iter *iter); | |
320 | %rename("_bt_iter_next") bt_iter_next(struct bt_iter *iter); | |
321 | %rename("_bt_iter_get_pos") bt_iter_get_pos(struct bt_iter *iter); | |
322 | %rename("_bt_iter_free_pos") bt_iter_free_pos(struct bt_iter_pos *pos); | |
323 | %rename("_bt_iter_set_pos") bt_iter_set_pos(struct bt_iter *iter, | |
324 | const struct bt_iter_pos *pos); | |
325 | %rename("_bt_iter_create_time_pos") bt_iter_create_time_pos(struct bt_iter *iter, | |
326 | uint64_t timestamp); | |
327 | ||
328 | struct bt_iter *bt_iter_create(struct bt_context *ctx, | |
329 | const struct bt_iter_pos *begin_pos, const struct bt_iter_pos *end_pos); | |
330 | void bt_iter_destroy(struct bt_iter *iter); | |
331 | int bt_iter_next(struct bt_iter *iter); | |
332 | struct bt_iter_pos *bt_iter_get_pos(struct bt_iter *iter); | |
333 | void bt_iter_free_pos(struct bt_iter_pos *pos); | |
334 | int bt_iter_set_pos(struct bt_iter *iter, const struct bt_iter_pos *pos); | |
335 | struct bt_iter_pos *bt_iter_create_time_pos(struct bt_iter *iter, uint64_t timestamp); | |
336 | ||
337 | %rename("_bt_iter_pos") bt_iter_pos; | |
338 | %rename("SEEK_TIME") BT_SEEK_TIME; | |
339 | %rename("SEEK_RESTORE") BT_SEEK_RESTORE; | |
340 | %rename("SEEK_CUR") BT_SEEK_CUR; | |
341 | %rename("SEEK_BEGIN") BT_SEEK_BEGIN; | |
ef42f9eb | 342 | %rename("SEEK_LAST") BT_SEEK_LAST; |
24a3136a DS |
343 | |
344 | // This struct is taken from iterator.h | |
345 | // All changes to the struct must also be made here | |
346 | struct bt_iter_pos { | |
347 | enum { | |
348 | BT_SEEK_TIME, /* uses u.seek_time */ | |
349 | BT_SEEK_RESTORE, /* uses u.restore */ | |
350 | BT_SEEK_CUR, | |
351 | BT_SEEK_BEGIN, | |
ef42f9eb | 352 | BT_SEEK_LAST |
24a3136a DS |
353 | } type; |
354 | union { | |
355 | uint64_t seek_time; | |
356 | struct bt_saved_pos *restore; | |
357 | } u; | |
358 | }; | |
359 | ||
24a3136a DS |
360 | /* ================================================================= |
361 | CLOCK-TYPE.H | |
362 | ¯¯¯¯¯¯¯¯¯¯¯¯ | |
363 | *** Enum copied from clock-type.h | |
364 | All changes must also be made here | |
365 | */ | |
366 | %rename("CLOCK_CYCLES") BT_CLOCK_CYCLES; | |
367 | %rename("CLOCK_REAL") BT_CLOCK_REAL; | |
368 | ||
369 | enum bt_clock_type { | |
370 | BT_CLOCK_CYCLES = 0, | |
371 | BT_CLOCK_REAL | |
372 | }; | |
373 | ||
374 | /* ================================================================= | |
375 | TRACE-HANDLE.H, TRACE-HANDLE-INTERNAL.H | |
376 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
377 | */ | |
378 | ||
379 | %rename("_bt_trace_handle_create") bt_trace_handle_create(struct bt_context *ctx); | |
380 | %rename("_bt_trace_handle_destroy") bt_trace_handle_destroy(struct bt_trace_handle *bt); | |
381 | struct bt_trace_handle *bt_trace_handle_create(struct bt_context *ctx); | |
382 | void bt_trace_handle_destroy(struct bt_trace_handle *bt); | |
383 | ||
384 | %rename("_bt_trace_handle_get_path") bt_trace_handle_get_path(struct bt_context *ctx, | |
385 | int handle_id); | |
386 | %rename("_bt_trace_handle_get_timestamp_begin") bt_trace_handle_get_timestamp_begin( | |
387 | struct bt_context *ctx, int handle_id, enum bt_clock_type type); | |
388 | %rename("_bt_trace_handle_get_timestamp_end") bt_trace_handle_get_timestamp_end( | |
389 | struct bt_context *ctx, int handle_id, enum bt_clock_type type); | |
24a3136a DS |
390 | const char *bt_trace_handle_get_path(struct bt_context *ctx, int handle_id); |
391 | uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx, int handle_id, | |
392 | enum bt_clock_type type); | |
393 | uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx, int handle_id, | |
394 | enum bt_clock_type type); | |
395 | ||
396 | %rename("_bt_ctf_event_get_handle_id") bt_ctf_event_get_handle_id( | |
397 | const struct bt_ctf_event *event); | |
398 | int bt_ctf_event_get_handle_id(const struct bt_ctf_event *event); | |
399 | ||
400 | ||
401 | %pythoncode%{ | |
402 | ||
403 | class TraceHandle(object): | |
404 | """ | |
405 | The TraceHandle allows the user to manipulate a trace file directly. | |
406 | It is a unique identifier representing a trace file. | |
407 | Do not instantiate. | |
408 | """ | |
409 | ||
410 | def __init__(self): | |
411 | raise NotImplementedError("TraceHandle cannot be instantiated") | |
412 | ||
413 | def __repr__(self): | |
288209fb | 414 | return "Babeltrace TraceHandle: trace_id('{0}')".format(self._id) |
24a3136a DS |
415 | |
416 | def get_id(self): | |
417 | """Return the TraceHandle id.""" | |
418 | return self._id | |
419 | ||
74ea15ad | 420 | def get_path(self, trace_collection): |
24a3136a DS |
421 | """Return the path of a TraceHandle.""" |
422 | try: | |
74ea15ad | 423 | return _bt_trace_handle_get_path(trace_collection._tc, self._id) |
24a3136a DS |
424 | except AttributeError: |
425 | raise TypeError("in get_path, " | |
74ea15ad | 426 | "argument 2 must be a TraceCollection instance") |
24a3136a | 427 | |
74ea15ad | 428 | def get_timestamp_begin(self, trace_collection, clock_type): |
24a3136a DS |
429 | """Return the creation time of the buffers of a trace.""" |
430 | try: | |
431 | return _bt_trace_handle_get_timestamp_begin( | |
74ea15ad | 432 | trace_collection._tc, self._id,clock_type) |
24a3136a DS |
433 | except AttributeError: |
434 | raise TypeError("in get_timestamp_begin, " | |
74ea15ad | 435 | "argument 2 must be a TraceCollection instance") |
24a3136a | 436 | |
74ea15ad | 437 | def get_timestamp_end(self, trace_collection, clock_type): |
24a3136a DS |
438 | """Return the destruction timestamp of the buffers of a trace.""" |
439 | try: | |
440 | return _bt_trace_handle_get_timestamp_end( | |
74ea15ad | 441 | trace_collection._tc, self._id, clock_type) |
24a3136a DS |
442 | except AttributeError: |
443 | raise TypeError("in get_timestamp_end, " | |
74ea15ad | 444 | "argument 2 must be a TraceCollection instance") |
24a3136a DS |
445 | |
446 | %} | |
447 | ||
448 | ||
449 | ||
450 | // ================================================================= | |
451 | // CTF | |
452 | // ================================================================= | |
453 | ||
454 | /* ================================================================= | |
455 | ITERATOR.H, EVENTS.H | |
456 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
457 | */ | |
458 | ||
459 | //Iterator | |
460 | %rename("_bt_ctf_iter_create") bt_ctf_iter_create(struct bt_context *ctx, | |
461 | const struct bt_iter_pos *begin_pos, | |
462 | const struct bt_iter_pos *end_pos); | |
463 | %rename("_bt_ctf_get_iter") bt_ctf_get_iter(struct bt_ctf_iter *iter); | |
464 | %rename("_bt_ctf_iter_destroy") bt_ctf_iter_destroy(struct bt_ctf_iter *iter); | |
465 | %rename("_bt_ctf_iter_read_event") bt_ctf_iter_read_event(struct bt_ctf_iter *iter); | |
466 | ||
467 | struct bt_ctf_iter *bt_ctf_iter_create(struct bt_context *ctx, | |
468 | const struct bt_iter_pos *begin_pos, | |
469 | const struct bt_iter_pos *end_pos); | |
470 | struct bt_iter *bt_ctf_get_iter(struct bt_ctf_iter *iter); | |
471 | void bt_ctf_iter_destroy(struct bt_ctf_iter *iter); | |
472 | struct bt_ctf_event *bt_ctf_iter_read_event(struct bt_ctf_iter *iter); | |
473 | ||
474 | ||
475 | //Events | |
476 | ||
477 | %rename("_bt_ctf_get_top_level_scope") bt_ctf_get_top_level_scope(const struct | |
478 | bt_ctf_event *event, enum bt_ctf_scope scope); | |
479 | %rename("_bt_ctf_event_name") bt_ctf_event_name(const struct bt_ctf_event *ctf_event); | |
480 | %rename("_bt_ctf_get_timestamp") bt_ctf_get_timestamp( | |
481 | const struct bt_ctf_event *ctf_event); | |
482 | %rename("_bt_ctf_get_cycles") bt_ctf_get_cycles( | |
483 | const struct bt_ctf_event *ctf_event); | |
484 | ||
485 | %rename("_bt_ctf_get_field") bt_ctf_get_field(const struct bt_ctf_event *ctf_event, | |
2c0df204 | 486 | const struct bt_definition *scope, const char *field); |
24a3136a | 487 | %rename("_bt_ctf_get_index") bt_ctf_get_index(const struct bt_ctf_event *ctf_event, |
2c0df204 XH |
488 | const struct bt_definition *field, unsigned int index); |
489 | %rename("_bt_ctf_field_name") bt_ctf_field_name(const struct bt_definition *field); | |
490 | %rename("_bt_ctf_field_type") bt_ctf_field_type(const struct bt_declaration *field); | |
24a3136a | 491 | %rename("_bt_ctf_get_int_signedness") bt_ctf_get_int_signedness( |
2c0df204 XH |
492 | const struct bt_declaration *field); |
493 | %rename("_bt_ctf_get_int_base") bt_ctf_get_int_base(const struct bt_declaration *field); | |
24a3136a | 494 | %rename("_bt_ctf_get_int_byte_order") bt_ctf_get_int_byte_order( |
2c0df204 XH |
495 | const struct bt_declaration *field); |
496 | %rename("_bt_ctf_get_int_len") bt_ctf_get_int_len(const struct bt_declaration *field); | |
4191bcd2 XH |
497 | %rename("_bt_ctf_get_enum_int") bt_ctf_get_enum_int(const struct bt_definition *field); |
498 | %rename("_bt_ctf_get_enum_str") bt_ctf_get_enum_str(const struct bt_definition *field); | |
2c0df204 XH |
499 | %rename("_bt_ctf_get_encoding") bt_ctf_get_encoding(const struct bt_declaration *field); |
500 | %rename("_bt_ctf_get_array_len") bt_ctf_get_array_len(const struct bt_declaration *field); | |
501 | %rename("_bt_ctf_get_uint64") bt_ctf_get_uint64(const struct bt_definition *field); | |
502 | %rename("_bt_ctf_get_int64") bt_ctf_get_int64(const struct bt_definition *field); | |
503 | %rename("_bt_ctf_get_char_array") bt_ctf_get_char_array(const struct bt_definition *field); | |
504 | %rename("_bt_ctf_get_string") bt_ctf_get_string(const struct bt_definition *field); | |
e5a73b90 | 505 | %rename("_bt_ctf_get_float") bt_ctf_get_float(const struct bt_definition *field); |
812e6682 | 506 | %rename("_bt_ctf_get_variant") bt_ctf_get_variant(const struct bt_definition *field); |
24a3136a DS |
507 | %rename("_bt_ctf_field_get_error") bt_ctf_field_get_error(void); |
508 | %rename("_bt_ctf_get_decl_event_name") bt_ctf_get_decl_event_name(const struct | |
509 | bt_ctf_event_decl *event); | |
510 | %rename("_bt_ctf_get_decl_field_name") bt_ctf_get_decl_field_name( | |
511 | const struct bt_ctf_field_decl *field); | |
f01efa78 | 512 | %rename("_bt_ctf_get_decl_from_def") bt_ctf_get_decl_from_def( |
2c0df204 | 513 | const struct bt_definition *field); |
3c2ce778 | 514 | %rename("_bt_array_index") bt_array_index(struct definition_array *array, uint64_t i); |
786207e0 XH |
515 | %rename("_bt_sequence_len") bt_sequence_len(struct definition_sequence *sequence); |
516 | %rename("_bt_sequence_index") bt_sequence_index(struct definition_sequence *sequence, uint64_t i); | |
3a068915 JG |
517 | %rename("_bt_ctf_get_struct_field_count") bt_ctf_get_struct_field_count(const struct bt_definition *structure); |
518 | %rename("_bt_ctf_get_struct_field_index") bt_ctf_get_struct_field_index(const struct bt_definition *structure, uint64_t i); | |
24a3136a | 519 | |
2c0df204 | 520 | const struct bt_definition *bt_ctf_get_top_level_scope(const struct bt_ctf_event *ctf_event, |
24a3136a DS |
521 | enum bt_ctf_scope scope); |
522 | const char *bt_ctf_event_name(const struct bt_ctf_event *ctf_event); | |
523 | uint64_t bt_ctf_get_timestamp(const struct bt_ctf_event *ctf_event); | |
524 | uint64_t bt_ctf_get_cycles(const struct bt_ctf_event *ctf_event); | |
2c0df204 XH |
525 | const struct bt_definition *bt_ctf_get_field(const struct bt_ctf_event *ctf_event, |
526 | const struct bt_definition *scope, | |
24a3136a | 527 | const char *field); |
2c0df204 XH |
528 | const struct bt_definition *bt_ctf_get_index(const struct bt_ctf_event *ctf_event, |
529 | const struct bt_definition *field, | |
24a3136a | 530 | unsigned int index); |
2c0df204 XH |
531 | const char *bt_ctf_field_name(const struct bt_definition *field); |
532 | enum ctf_type_id bt_ctf_field_type(const struct bt_declaration *field); | |
533 | int bt_ctf_get_int_signedness(const struct bt_declaration *field); | |
534 | int bt_ctf_get_int_base(const struct bt_declaration *field); | |
535 | int bt_ctf_get_int_byte_order(const struct bt_declaration *field); | |
536 | ssize_t bt_ctf_get_int_len(const struct bt_declaration *field); | |
4191bcd2 XH |
537 | const struct bt_definition *bt_ctf_get_enum_int(const struct bt_definition *field); |
538 | const char *bt_ctf_get_enum_str(const struct bt_definition *field); | |
2c0df204 XH |
539 | enum ctf_string_encoding bt_ctf_get_encoding(const struct bt_declaration *field); |
540 | int bt_ctf_get_array_len(const struct bt_declaration *field); | |
3c2ce778 | 541 | struct bt_definition *bt_array_index(struct definition_array *array, uint64_t i); |
2c0df204 XH |
542 | uint64_t bt_ctf_get_uint64(const struct bt_definition *field); |
543 | int64_t bt_ctf_get_int64(const struct bt_definition *field); | |
544 | char *bt_ctf_get_char_array(const struct bt_definition *field); | |
545 | char *bt_ctf_get_string(const struct bt_definition *field); | |
e5a73b90 | 546 | double bt_ctf_get_float(const struct bt_definition *field); |
812e6682 | 547 | const struct bt_definition *bt_ctf_get_variant(const struct bt_definition *field); |
24a3136a DS |
548 | int bt_ctf_field_get_error(void); |
549 | const char *bt_ctf_get_decl_event_name(const struct bt_ctf_event_decl *event); | |
550 | const char *bt_ctf_get_decl_field_name(const struct bt_ctf_field_decl *field); | |
2c0df204 | 551 | const struct bt_declaration *bt_ctf_get_decl_from_def(const struct bt_definition *field); |
786207e0 XH |
552 | uint64_t bt_sequence_len(struct definition_sequence *sequence); |
553 | struct bt_definition *bt_sequence_index(struct definition_sequence *sequence, uint64_t i); | |
3a068915 JG |
554 | uint64_t bt_ctf_get_struct_field_count(const struct bt_definition *structure); |
555 | const struct bt_definition *bt_ctf_get_struct_field_index(const struct bt_definition *structure, uint64_t i); | |
24a3136a DS |
556 | |
557 | %pythoncode%{ | |
558 | ||
24d5c942 JG |
559 | class CTFStringEncoding: |
560 | NONE = 0 | |
561 | UTF8 = 1 | |
562 | ASCII = 2 | |
563 | UNKNOWN = 3 | |
564 | ||
565 | #enum equivalent, accessible constants | |
566 | #These are taken directly from ctf/events.h | |
567 | #All changes to enums must also be made here | |
568 | class CTFTypeId: | |
569 | UNKNOWN = 0 | |
570 | INTEGER = 1 | |
571 | FLOAT = 2 | |
572 | ENUM = 3 | |
573 | STRING = 4 | |
574 | STRUCT = 5 | |
575 | UNTAGGED_VARIANT = 6 | |
576 | VARIANT = 7 | |
577 | ARRAY = 8 | |
578 | SEQUENCE = 9 | |
579 | NR_CTF_TYPES = 10 | |
580 | ||
581 | def get_type_name(id): | |
582 | name = "UNKNOWN" | |
583 | constants = [attr for attr in dir(CTFTypeId) if not callable(getattr(CTFTypeId, attr)) and not attr.startswith("__")] | |
584 | for attr in constants: | |
585 | if getattr(CTFTypeId, attr) == id: | |
586 | name = attr | |
587 | break | |
588 | return name | |
589 | ||
590 | class CTFReader: | |
24a3136a DS |
591 | class scope: |
592 | TRACE_PACKET_HEADER = 0 | |
593 | STREAM_PACKET_CONTEXT = 1 | |
594 | STREAM_EVENT_HEADER = 2 | |
595 | STREAM_EVENT_CONTEXT = 3 | |
596 | EVENT_CONTEXT = 4 | |
597 | EVENT_FIELDS = 5 | |
598 | ||
24a3136a DS |
599 | class Event(object): |
600 | """ | |
601 | This class represents an event from the trace. | |
74ea15ad | 602 | It is obtained using the TraceCollection generator functions. |
24a3136a DS |
603 | Do not instantiate. |
604 | """ | |
605 | ||
606 | def __init__(self): | |
24d5c942 | 607 | raise NotImplementedError("CTFReader.Event cannot be instantiated") |
24a3136a DS |
608 | |
609 | def get_top_level_scope(self, scope): | |
610 | """ | |
611 | Return a definition of the top-level scope | |
24d5c942 | 612 | Top-level scopes are defined in CTFReader.scope. |
24a3136a DS |
613 | In order to get a field or a field list, the user needs to pass a |
614 | scope as argument, this scope can be a top-level scope or a scope | |
615 | relative to an arbitrary field. This function provides the mapping | |
616 | between the scope and the actual definition of top-level scopes. | |
617 | On error return None. | |
618 | """ | |
24d5c942 | 619 | evDef = CTFReader.Definition.__new__(CTFReader.Definition) |
24a3136a DS |
620 | evDef._d = _bt_ctf_get_top_level_scope(self._e, scope) |
621 | if evDef._d is None: | |
622 | return None | |
623 | return evDef | |
624 | ||
625 | def get_name(self): | |
626 | """Return the name of the event or None on error.""" | |
627 | return _bt_ctf_event_name(self._e) | |
628 | ||
629 | def get_cycles(self): | |
630 | """ | |
631 | Return the timestamp of the event as written in | |
632 | the packet (in cycles) or -1ULL on error. | |
633 | """ | |
634 | return _bt_ctf_get_cycles(self._e) | |
635 | ||
636 | def get_timestamp(self): | |
637 | """ | |
638 | Return the timestamp of the event offsetted with the | |
639 | system clock source or -1ULL on error. | |
640 | """ | |
641 | return _bt_ctf_get_timestamp(self._e) | |
642 | ||
7a30a668 XH |
643 | def get_field_with_scope(self, scope, field): |
644 | """ | |
645 | Return the definition of a specific field. | |
646 | Return None on error. | |
647 | """ | |
24d5c942 | 648 | evDef = CTFReader.Definition.__new__(CTFReader.Definition) |
24a3136a DS |
649 | try: |
650 | evDef._d = _bt_ctf_get_field(self._e, scope._d, field) | |
651 | except AttributeError: | |
652 | raise TypeError("in get_field, argument 2 must be a " | |
653 | "Definition (scope) instance") | |
7a30a668 XH |
654 | if evDef._d is None: |
655 | return None | |
656 | evDef._s = scope | |
24a3136a DS |
657 | return evDef |
658 | ||
7a30a668 XH |
659 | def get_field(self, field): |
660 | """ | |
661 | Return the definition of fields by a name | |
662 | Return None on error | |
663 | """ | |
24d5c942 JG |
664 | eventScope = self.get_top_level_scope(CTFReader.scope.EVENT_FIELDS) |
665 | streamScope = self.get_top_level_scope(CTFReader.scope.STREAM_EVENT_CONTEXT) | |
7a30a668 XH |
666 | fields_by_name = [] |
667 | ||
668 | if eventScope is not None: | |
669 | evDef = self.get_field_with_scope(eventScope, field) | |
670 | if evDef is not None: | |
671 | fields_by_name.append(evDef) | |
672 | ||
673 | if streamScope is not None: | |
674 | evDef = self.get_field_with_scope(streamScope, field) | |
675 | if evDef is not None: | |
676 | fields_by_name.append(evDef); | |
677 | ||
678 | if not fields_by_name: | |
679 | return None | |
680 | return fields_by_name | |
681 | ||
682 | def get_field_list_with_scope(self, scope): | |
24a3136a | 683 | """ |
7a30a668 | 684 | Return a list of Definitions associated with the scope |
24a3136a DS |
685 | Return None on error. |
686 | """ | |
687 | try: | |
cebae8c3 | 688 | field_lc, count = _bt_python_field_listcaller(self._e, scope._d) |
24a3136a DS |
689 | except AttributeError: |
690 | raise TypeError("in get_field_list, argument 2 must be a " | |
691 | "Definition (scope) instance") | |
692 | ||
693 | if field_lc is None: | |
694 | return None | |
695 | ||
696 | def_list = [] | |
cebae8c3 | 697 | for i in range(count): |
24d5c942 | 698 | tmp = CTFReader.Definition.__new__(CTFReader.Definition) |
24a3136a | 699 | tmp._d = _bt_python_field_one_from_list(field_lc, i) |
7a30a668 | 700 | tmp._s = scope |
24a3136a | 701 | def_list.append(tmp) |
cebae8c3 | 702 | |
24a3136a DS |
703 | return def_list |
704 | ||
7a30a668 XH |
705 | def get_field_list(self): |
706 | """Return a list of Definitions or None on error.""" | |
24d5c942 JG |
707 | eventScope = self.get_top_level_scope(CTFReader.scope.EVENT_FIELDS) |
708 | streamScope = self.get_top_level_scope(CTFReader.scope.STREAM_EVENT_CONTEXT) | |
7a30a668 XH |
709 | |
710 | def_list = [] | |
711 | if eventScope is not None: | |
712 | event_field_list = self.get_field_list_with_scope(eventScope) | |
713 | if event_field_list is not None: | |
714 | def_list = event_field_list | |
715 | ||
716 | if streamScope is not None: | |
717 | event_field_list = self.get_field_list_with_scope(streamScope) | |
718 | if event_field_list is not None: | |
719 | def_list.extend(event_field_list) | |
720 | ||
721 | if not def_list: | |
722 | return None | |
723 | return def_list | |
724 | ||
24a3136a DS |
725 | def get_index(self, field, index): |
726 | """ | |
727 | If the field is an array or a sequence, return the element | |
728 | at position index, otherwise return None | |
729 | """ | |
24d5c942 | 730 | evDef = CTFReader.Definition.__new__(CTFReader.Definition) |
24a3136a DS |
731 | try: |
732 | evDef._d = _bt_ctf_get_index(self._e, field._d, index) | |
733 | except AttributeError: | |
734 | raise TypeError("in get_index, argument 2 must be a " | |
735 | "Definition (field) instance") | |
736 | ||
737 | if evDef._d is None: | |
738 | return None | |
739 | return evDef | |
740 | ||
741 | def get_handle(self): | |
742 | """ | |
74ea15ad | 743 | Get the TraceHandle associated with this event |
24a3136a DS |
744 | Return None on error |
745 | """ | |
746 | ret = _bt_ctf_event_get_handle_id(self._e) | |
747 | if ret < 0: | |
748 | return None | |
749 | ||
750 | th = TraceHandle.__new__(TraceHandle) | |
751 | th._id = ret | |
752 | return th | |
753 | ||
74ea15ad | 754 | def get_trace_collection(self): |
24a3136a | 755 | """ |
74ea15ad | 756 | Get the TraceCollection associated with this event. |
24a3136a DS |
757 | Return None on error. |
758 | """ | |
74ea15ad JG |
759 | trace_collection = TraceCollection() |
760 | trace_collection._tc = _bt_ctf_event_get_context(self._e); | |
761 | if trace_collection._tc is None: | |
24a3136a DS |
762 | return None |
763 | else: | |
74ea15ad | 764 | return trace_collection |
24a3136a | 765 | |
90131a32 JG |
766 | class FieldError(Exception): |
767 | def __init__(self, value): | |
768 | self.value = value | |
769 | ||
770 | def __str__(self): | |
771 | return repr(self.value) | |
24a3136a DS |
772 | |
773 | class Definition(object): | |
774 | """Definition class. Do not instantiate.""" | |
775 | ||
776 | def __init__(self): | |
24d5c942 | 777 | raise NotImplementedError("CTFReader.Definition cannot be instantiated") |
24a3136a DS |
778 | |
779 | def __repr__(self): | |
288209fb | 780 | return "Babeltrace Definition: name('{0}'), type({1})".format( |
24a3136a DS |
781 | self.field_name(), self.field_type()) |
782 | ||
783 | def field_name(self): | |
784 | """Return the name of a field or None on error.""" | |
785 | return _bt_ctf_field_name(self._d) | |
786 | ||
787 | def field_type(self): | |
788 | """Return the type of a field or -1 if unknown.""" | |
f01efa78 | 789 | return _bt_ctf_field_type(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a DS |
790 | |
791 | def get_int_signedness(self): | |
792 | """ | |
793 | Return the signedness of an integer: | |
794 | 0 if unsigned; 1 if signed; -1 on error. | |
795 | """ | |
f01efa78 | 796 | return _bt_ctf_get_int_signedness(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a DS |
797 | |
798 | def get_int_base(self): | |
799 | """Return the base of an int or a negative value on error.""" | |
f01efa78 | 800 | return _bt_ctf_get_int_base(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a DS |
801 | |
802 | def get_int_byte_order(self): | |
803 | """ | |
804 | Return the byte order of an int or a negative | |
805 | value on error. | |
806 | """ | |
f01efa78 | 807 | return _bt_ctf_get_int_byte_order(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a DS |
808 | |
809 | def get_int_len(self): | |
810 | """ | |
811 | Return the size, in bits, of an int or a negative | |
812 | value on error. | |
813 | """ | |
135c8f9c | 814 | return _bt_ctf_get_int_len(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a | 815 | |
4191bcd2 XH |
816 | def get_enum_str(self): |
817 | """ | |
818 | Return the string matching the current enumeration. | |
819 | Return None on error. | |
820 | """ | |
821 | return _bt_ctf_get_enum_str(self._d) | |
822 | ||
24a3136a DS |
823 | def get_encoding(self): |
824 | """ | |
825 | Return the encoding of an int or a string. | |
826 | Return a negative value on error. | |
827 | """ | |
f01efa78 | 828 | return _bt_ctf_get_encoding(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a DS |
829 | |
830 | def get_array_len(self): | |
831 | """ | |
832 | Return the len of an array or a negative | |
833 | value on error. | |
834 | """ | |
f01efa78 | 835 | return _bt_ctf_get_array_len(_bt_ctf_get_decl_from_def(self._d)) |
24a3136a | 836 | |
3c2ce778 XH |
837 | def get_array_element_at(self, index): |
838 | """ | |
839 | Return the array's element at position index. | |
840 | Return None on error | |
841 | """ | |
842 | array = _bt_python_get_array_from_def(self._d) | |
843 | if array is None: | |
844 | return None | |
845 | ||
24d5c942 | 846 | element = CTFReader.Definition.__new__(CTFReader.Definition) |
3c2ce778 XH |
847 | element._d = _bt_array_index(array, index) |
848 | if element._d is None: | |
849 | return None | |
850 | return element | |
851 | ||
786207e0 XH |
852 | def get_sequence_len(self): |
853 | """ | |
854 | Return the len of a sequence or a negative | |
855 | value on error. | |
856 | """ | |
857 | seq = _bt_python_get_sequence_from_def(self._d) | |
858 | return _bt_sequence_len(seq) | |
859 | ||
860 | def get_sequence_element_at(self, index): | |
861 | """ | |
862 | Return the sequence's element at position index, | |
863 | otherwise return None | |
864 | """ | |
865 | seq = _bt_python_get_sequence_from_def(self._d) | |
866 | if seq is not None: | |
24d5c942 | 867 | element = CTFReader.Definition.__new__(CTFReader.Definition) |
786207e0 XH |
868 | element._d = _bt_sequence_index(seq, index) |
869 | if element._d is not None: | |
870 | return element | |
871 | return None | |
872 | ||
24a3136a DS |
873 | def get_uint64(self): |
874 | """ | |
875 | Return the value associated with the field. | |
876 | If the field does not exist or is not of the type requested, | |
877 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 878 | use the CTFReader.field_error() function after accessing a field. |
24a3136a DS |
879 | """ |
880 | return _bt_ctf_get_uint64(self._d) | |
881 | ||
882 | def get_int64(self): | |
883 | """ | |
884 | Return the value associated with the field. | |
885 | If the field does not exist or is not of the type requested, | |
886 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 887 | use the CTFReader.field_error() function after accessing a field. |
24a3136a DS |
888 | """ |
889 | return _bt_ctf_get_int64(self._d) | |
890 | ||
891 | def get_char_array(self): | |
892 | """ | |
893 | Return the value associated with the field. | |
894 | If the field does not exist or is not of the type requested, | |
895 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 896 | use the CTFReader.field_error() function after accessing a field. |
24a3136a DS |
897 | """ |
898 | return _bt_ctf_get_char_array(self._d) | |
899 | ||
900 | def get_str(self): | |
901 | """ | |
902 | Return the value associated with the field. | |
903 | If the field does not exist or is not of the type requested, | |
904 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 905 | use the CTFReader.field_error() function after accessing a field. |
24a3136a DS |
906 | """ |
907 | return _bt_ctf_get_string(self._d) | |
908 | ||
e5a73b90 JG |
909 | def get_float(self): |
910 | """ | |
911 | Return the value associated with the field. | |
912 | If the field does not exist or is not of the type requested, | |
913 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 914 | use the CTFReader.field_error() function after accessing a field. |
e5a73b90 JG |
915 | """ |
916 | return _bt_ctf_get_float(self._d) | |
917 | ||
812e6682 JG |
918 | def get_variant(self): |
919 | """ | |
920 | Return the variant's selected field. | |
921 | If the field does not exist or is not of the type requested, | |
922 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 923 | use the CTFReader.field_error() function after accessing a field. |
812e6682 JG |
924 | """ |
925 | return _bt_ctf_get_variant(self._d) | |
926 | ||
3a068915 JG |
927 | def get_struct_field_count(self): |
928 | """ | |
929 | Return the number of fields contained in the structure. | |
930 | If the field does not exist or is not of the type requested, | |
931 | the value returned is undefined. | |
932 | """ | |
933 | return _bt_ctf_get_struct_field_count(self._d) | |
934 | ||
935 | def get_struct_field_at(self, i): | |
936 | """ | |
937 | Return the structure's field at position i. | |
938 | If the field does not exist or is not of the type requested, | |
939 | the value returned is undefined. To check if an error occured, | |
24d5c942 | 940 | use the CTFReader.field_error() function after accessing a field. |
3a068915 JG |
941 | """ |
942 | return _bt_ctf_get_struct_field_index(self._d, i) | |
943 | ||
3c2ce778 XH |
944 | def get_value(self): |
945 | """ | |
946 | Return the value associated with the field according to its type. | |
947 | Return None on error. | |
948 | """ | |
949 | id = self.field_type() | |
90131a32 | 950 | value = None |
24d5c942 | 951 | if id == CTFTypeId.STRING: |
90131a32 | 952 | value = self.get_str() |
24d5c942 | 953 | elif id == CTFTypeId.ARRAY: |
90131a32 | 954 | value = [] |
3c2ce778 XH |
955 | for i in range(self.get_array_len()): |
956 | element = self.get_array_element_at(i) | |
90131a32 | 957 | value.append(element.get_value()) |
24d5c942 | 958 | elif id == CTFTypeId.INTEGER: |
3c2ce778 | 959 | if self.get_int_signedness() == 0: |
90131a32 | 960 | value = self.get_uint64() |
3c2ce778 | 961 | else: |
90131a32 | 962 | value = self.get_int64() |
24d5c942 | 963 | elif id == CTFTypeId.ENUM: |
90131a32 | 964 | value = self.get_enum_str() |
24d5c942 | 965 | elif id == CTFTypeId.SEQUENCE: |
786207e0 | 966 | seq_len = self.get_sequence_len() |
90131a32 | 967 | value = [] |
786207e0 XH |
968 | for i in range(seq_len): |
969 | evDef = self.get_sequence_element_at(i) | |
90131a32 | 970 | value.append(evDef.get_value()) |
24d5c942 | 971 | elif id == CTFTypeId.FLOAT: |
e5a73b90 | 972 | value = self.get_float() |
24d5c942 JG |
973 | elif id == CTFTypeId.VARIANT: |
974 | variant = CTFReader.Definition.__new__(CTFReader.Definition) | |
812e6682 JG |
975 | variant._d = self.get_variant(); |
976 | value = variant.get_value() | |
24d5c942 | 977 | elif id == CTFTypeId.STRUCT: |
3a068915 JG |
978 | value = {} |
979 | for i in range(self.get_struct_field_count()): | |
24d5c942 | 980 | member = CTFReader.Definition.__new__(CTFReader.Definition) |
3a068915 JG |
981 | member._d = self.get_struct_field_at(i); |
982 | value[member.field_name()] = member.get_value() | |
e5a73b90 | 983 | |
24d5c942 JG |
984 | if CTFReader.field_error(): |
985 | raise CTFReader.FieldError("Error occured while accessing field {} of type {}".format(self.field_name(), CTFTypeId.get_type_name(self.field_type()))) | |
90131a32 | 986 | return value |
3c2ce778 | 987 | |
7a30a668 XH |
988 | def get_scope(self): |
989 | """Return the scope of a field or None on error.""" | |
990 | return self._s | |
24a3136a DS |
991 | |
992 | class EventDecl(object): | |
993 | """Event declaration class. Do not instantiate.""" | |
994 | ||
995 | def __init__(self): | |
24d5c942 | 996 | raise NotImplementedError("CTFReader.EventDecl cannot be instantiated") |
24a3136a DS |
997 | |
998 | def __repr__(self): | |
288209fb | 999 | return "Babeltrace EventDecl: name {0}".format(self.get_name()) |
24a3136a DS |
1000 | |
1001 | def get_name(self): | |
1002 | """Return the name of the event or None on error""" | |
1003 | return _bt_ctf_get_decl_event_name(self._d) | |
1004 | ||
1005 | def get_decl_fields(self, scope): | |
1006 | """ | |
24d5c942 | 1007 | Return a list of CTFReader.FieldDecl |
24a3136a DS |
1008 | Return None on error. |
1009 | """ | |
1010 | ptr_list = _by_python_field_decl_listcaller(self._d, scope) | |
1011 | ||
1012 | if ptr_list is None: | |
1013 | return None | |
1014 | ||
1015 | decl_list = [] | |
1016 | i = 0 | |
1017 | while True: | |
24d5c942 | 1018 | tmp = CTFReader.FieldDecl.__new__(CTFReader.FieldDecl) |
24a3136a DS |
1019 | tmp._d = _bt_python_field_decl_one_from_list( |
1020 | ptr_list, i) | |
1021 | ||
1022 | if tmp._d is None: | |
1023 | #Last item of list is None | |
1024 | break | |
1025 | ||
1026 | decl_list.append(tmp) | |
1027 | i += 1 | |
1028 | return decl_list | |
1029 | ||
1030 | ||
1031 | class FieldDecl(object): | |
1032 | """Field declaration class. Do not instantiate.""" | |
1033 | ||
1034 | def __init__(self): | |
24d5c942 | 1035 | raise NotImplementedError("CTFReader.FieldDecl cannot be instantiated") |
24a3136a DS |
1036 | |
1037 | def __repr__(self): | |
288209fb | 1038 | return "Babeltrace FieldDecl: name {0}".format(self.get_name()) |
24a3136a DS |
1039 | |
1040 | def get_name(self): | |
1041 | """Return the name of a FieldDecl or None on error""" | |
1042 | return _bt_ctf_get_decl_field_name(self._d) | |
1043 | ||
1044 | ||
1045 | @staticmethod | |
1046 | def field_error(): | |
1047 | """ | |
1048 | Return the last error code encountered while | |
1049 | accessing a field and reset the error flag. | |
1050 | Return 0 if no error, a negative value otherwise. | |
1051 | """ | |
1052 | return _bt_ctf_field_get_error() | |
1053 | ||
1054 | @staticmethod | |
74ea15ad | 1055 | def get_event_decl_list(trace_handle, trace_collection): |
24a3136a | 1056 | """ |
24d5c942 | 1057 | Return a list of CTFReader.EventDecl |
24a3136a DS |
1058 | Return None on error. |
1059 | """ | |
1060 | try: | |
1061 | handle_id = trace_handle._id | |
1062 | except AttributeError: | |
1063 | raise TypeError("in get_event_decl_list, " | |
1064 | "argument 1 must be a TraceHandle instance") | |
1065 | try: | |
74ea15ad | 1066 | ptr_list, count = _bt_python_event_decl_listcaller(handle_id, trace_collection._tc) |
24a3136a DS |
1067 | except AttributeError: |
1068 | raise TypeError("in get_event_decl_list, " | |
74ea15ad | 1069 | "argument 2 must be a TraceCollection instance") |
24a3136a DS |
1070 | |
1071 | if ptr_list is None: | |
1072 | return None | |
1073 | ||
1074 | decl_list = [] | |
cebae8c3 | 1075 | for i in range(count): |
24d5c942 | 1076 | tmp = CTFReader.EventDecl.__new__(CTFReader.EventDecl) |
24a3136a | 1077 | tmp._d = _bt_python_decl_one_from_list(ptr_list, i) |
24a3136a | 1078 | decl_list.append(tmp) |
cebae8c3 | 1079 | |
24a3136a DS |
1080 | return decl_list |
1081 | ||
1082 | %} | |
1083 | ||
1084 | ||
ec8c88d7 JG |
1085 | // ================================================================= |
1086 | // CTF Writer | |
1087 | // ================================================================= | |
1088 | ||
1089 | /* ================================================================= | |
1090 | CLOCK.H | |
1091 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1092 | */ | |
1093 | %rename("_bt_ctf_clock_create") bt_ctf_clock_create(const char *name); | |
1094 | %rename("_bt_ctf_clock_set_description") bt_ctf_clock_set_description(struct bt_ctf_clock *clock, const char *desc); | |
1095 | %rename("_bt_ctf_clock_set_frequency") bt_ctf_clock_set_frequency(struct bt_ctf_clock *clock, uint64_t freq); | |
1096 | %rename("_bt_ctf_clock_set_precision") bt_ctf_clock_set_precision(struct bt_ctf_clock *clock, uint64_t precision); | |
1097 | %rename("_bt_ctf_clock_set_offset_s") bt_ctf_clock_set_offset_s(struct bt_ctf_clock *clock, uint64_t offset_s); | |
1098 | %rename("_bt_ctf_clock_set_offset") bt_ctf_clock_set_offset(struct bt_ctf_clock *clock, uint64_t offset); | |
1099 | %rename("_bt_ctf_clock_set_is_absolute") bt_ctf_clock_set_is_absolute(struct bt_ctf_clock *clock, int is_absolute); | |
1100 | %rename("_bt_ctf_clock_set_time") bt_ctf_clock_set_time(struct bt_ctf_clock *clock, uint64_t time); | |
1101 | %rename("_bt_ctf_clock_get") bt_ctf_clock_get(struct bt_ctf_clock *clock); | |
1102 | %rename("_bt_ctf_clock_put") bt_ctf_clock_put(struct bt_ctf_clock *clock); | |
1103 | ||
1104 | struct bt_ctf_clock *bt_ctf_clock_create(const char *name); | |
1105 | int bt_ctf_clock_set_description(struct bt_ctf_clock *clock, const char *desc); | |
1106 | int bt_ctf_clock_set_frequency(struct bt_ctf_clock *clock, uint64_t freq); | |
1107 | int bt_ctf_clock_set_precision(struct bt_ctf_clock *clock, uint64_t precision); | |
1108 | int bt_ctf_clock_set_offset_s(struct bt_ctf_clock *clock, uint64_t offset_s); | |
1109 | int bt_ctf_clock_set_offset(struct bt_ctf_clock *clock, uint64_t offset); | |
1110 | int bt_ctf_clock_set_is_absolute(struct bt_ctf_clock *clock, int is_absolute); | |
1111 | int bt_ctf_clock_set_time(struct bt_ctf_clock *clock, uint64_t time); | |
1112 | void bt_ctf_clock_get(struct bt_ctf_clock *clock); | |
1113 | void bt_ctf_clock_put(struct bt_ctf_clock *clock); | |
1114 | ||
1115 | /* ================================================================= | |
1116 | EVENT-TYPES.H | |
1117 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1118 | */ | |
1119 | %rename("_bt_ctf_field_type_integer_create") bt_ctf_field_type_integer_create(unsigned int size); | |
1120 | %rename("_bt_ctf_field_type_integer_set_signed") bt_ctf_field_type_integer_set_signed(struct bt_ctf_field_type *integer, int is_signed); | |
1121 | %rename("_bt_ctf_field_type_integer_set_base") bt_ctf_field_type_integer_set_base(struct bt_ctf_field_type *integer, enum bt_ctf_integer_base base); | |
1122 | %rename("_bt_ctf_field_type_integer_set_encoding") bt_ctf_field_type_integer_set_encoding(struct bt_ctf_field_type *integer, enum ctf_string_encoding encoding); | |
1123 | %rename("_bt_ctf_field_type_enumeration_create") bt_ctf_field_type_enumeration_create(struct bt_ctf_field_type *integer_container_type); | |
1124 | %rename("_bt_ctf_field_type_enumeration_add_mapping") bt_ctf_field_type_enumeration_add_mapping(struct bt_ctf_field_type *enumeration, const char *string, int64_t range_start, int64_t range_end); | |
1125 | %rename("_bt_ctf_field_type_floating_point_create") bt_ctf_field_type_floating_point_create(void); | |
1126 | %rename("_bt_ctf_field_type_floating_point_set_exponent_digits") bt_ctf_field_type_floating_point_set_exponent_digits(struct bt_ctf_field_type *floating_point, unsigned int exponent_digits); | |
1127 | %rename("_bt_ctf_field_type_floating_point_set_mantissa_digits") bt_ctf_field_type_floating_point_set_mantissa_digits(struct bt_ctf_field_type *floating_point, unsigned int mantissa_digits); | |
1128 | %rename("_bt_ctf_field_type_structure_create") bt_ctf_field_type_structure_create(void); | |
1129 | %rename("_bt_ctf_field_type_structure_add_field") bt_ctf_field_type_structure_add_field(struct bt_ctf_field_type *structure, struct bt_ctf_field_type *field_type, const char *field_name); | |
1130 | %rename("_bt_ctf_field_type_variant_create") bt_ctf_field_type_variant_create(struct bt_ctf_field_type *enum_tag, const char *tag_name); | |
1131 | %rename("_bt_ctf_field_type_variant_add_field") bt_ctf_field_type_variant_add_field(struct bt_ctf_field_type *variant, struct bt_ctf_field_type *field_type, const char *field_name); | |
1132 | %rename("_bt_ctf_field_type_array_create") bt_ctf_field_type_array_create(struct bt_ctf_field_type *element_type, unsigned int length); | |
1133 | %rename("_bt_ctf_field_type_sequence_create") bt_ctf_field_type_sequence_create(struct bt_ctf_field_type *element_type, const char *length_field_name); | |
1134 | %rename("_bt_ctf_field_type_string_create") bt_ctf_field_type_string_create(void); | |
1135 | %rename("_bt_ctf_field_type_string_set_encoding") bt_ctf_field_type_string_set_encoding(struct bt_ctf_field_type *string, enum ctf_string_encoding encoding); | |
1136 | %rename("_bt_ctf_field_type_set_alignment") bt_ctf_field_type_set_alignment(struct bt_ctf_field_type *type, unsigned int alignment); | |
1137 | %rename("_bt_ctf_field_type_set_byte_order") bt_ctf_field_type_set_byte_order(struct bt_ctf_field_type *type, enum bt_ctf_byte_order byte_order); | |
1138 | %rename("_bt_ctf_field_type_get") bt_ctf_field_type_get(struct bt_ctf_field_type *type); | |
1139 | %rename("_bt_ctf_field_type_put") bt_ctf_field_type_put(struct bt_ctf_field_type *type); | |
1140 | ||
1141 | struct bt_ctf_field_type *bt_ctf_field_type_integer_create(unsigned int size); | |
1142 | int bt_ctf_field_type_integer_set_signed(struct bt_ctf_field_type *integer, int is_signed); | |
1143 | int bt_ctf_field_type_integer_set_base(struct bt_ctf_field_type *integer, enum bt_ctf_integer_base base); | |
1144 | int bt_ctf_field_type_integer_set_encoding(struct bt_ctf_field_type *integer, enum ctf_string_encoding encoding); | |
1145 | struct bt_ctf_field_type *bt_ctf_field_type_enumeration_create(struct bt_ctf_field_type *integer_container_type); | |
1146 | int bt_ctf_field_type_enumeration_add_mapping(struct bt_ctf_field_type *enumeration, const char *string, int64_t range_start, int64_t range_end); | |
1147 | struct bt_ctf_field_type *bt_ctf_field_type_floating_point_create(void); | |
1148 | int bt_ctf_field_type_floating_point_set_exponent_digits(struct bt_ctf_field_type *floating_point, unsigned int exponent_digits); | |
1149 | int bt_ctf_field_type_floating_point_set_mantissa_digits(struct bt_ctf_field_type *floating_point, unsigned int mantissa_digits); | |
1150 | struct bt_ctf_field_type *bt_ctf_field_type_structure_create(void); | |
1151 | int bt_ctf_field_type_structure_add_field(struct bt_ctf_field_type *structure, struct bt_ctf_field_type *field_type, const char *field_name); | |
1152 | struct bt_ctf_field_type *bt_ctf_field_type_variant_create(struct bt_ctf_field_type *enum_tag, const char *tag_name); | |
1153 | int bt_ctf_field_type_variant_add_field(struct bt_ctf_field_type *variant, struct bt_ctf_field_type *field_type, const char *field_name); | |
1154 | struct bt_ctf_field_type *bt_ctf_field_type_array_create(struct bt_ctf_field_type *element_type, unsigned int length); | |
1155 | struct bt_ctf_field_type *bt_ctf_field_type_sequence_create(struct bt_ctf_field_type *element_type, const char *length_field_name); | |
1156 | struct bt_ctf_field_type *bt_ctf_field_type_string_create(void); | |
1157 | int bt_ctf_field_type_string_set_encoding(struct bt_ctf_field_type *string, enum ctf_string_encoding encoding); | |
1158 | int bt_ctf_field_type_set_alignment(struct bt_ctf_field_type *type, unsigned int alignment); | |
1159 | int bt_ctf_field_type_set_byte_order(struct bt_ctf_field_type *type, enum bt_ctf_byte_order byte_order); | |
1160 | void bt_ctf_field_type_get(struct bt_ctf_field_type *type); | |
1161 | void bt_ctf_field_type_put(struct bt_ctf_field_type *type); | |
1162 | ||
1163 | /* ================================================================= | |
1164 | EVENT-FIELDS.H | |
1165 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1166 | */ | |
1167 | %rename("_bt_ctf_field_create") bt_ctf_field_create(struct bt_ctf_field_type *type); | |
1168 | %rename("_bt_ctf_field_structure_get_field") bt_ctf_field_structure_get_field(struct bt_ctf_field *structure, const char *name); | |
1169 | %rename("_bt_ctf_field_array_get_field") bt_ctf_field_array_get_field(struct bt_ctf_field *array, uint64_t index); | |
1170 | %rename("_bt_ctf_field_sequence_set_length") bt_ctf_field_sequence_set_length(struct bt_ctf_field *sequence, struct bt_ctf_field *length_field); | |
1171 | %rename("_bt_ctf_field_sequence_get_field") bt_ctf_field_sequence_get_field(struct bt_ctf_field *sequence, uint64_t index); | |
1172 | %rename("_bt_ctf_field_variant_get_field") bt_ctf_field_variant_get_field(struct bt_ctf_field *variant, struct bt_ctf_field *tag); | |
1173 | %rename("_bt_ctf_field_enumeration_get_container") bt_ctf_field_enumeration_get_container(struct bt_ctf_field *enumeration); | |
1174 | %rename("_bt_ctf_field_signed_integer_set_value") bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *integer, int64_t value); | |
1175 | %rename("_bt_ctf_field_unsigned_integer_set_value") bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *integer, uint64_t value); | |
1176 | %rename("_bt_ctf_field_floating_point_set_value") bt_ctf_field_floating_point_set_value(struct bt_ctf_field *floating_point, double value); | |
1177 | %rename("_bt_ctf_field_string_set_value") bt_ctf_field_string_set_value(struct bt_ctf_field *string, const char *value); | |
1178 | %rename("_bt_ctf_field_get") bt_ctf_field_get(struct bt_ctf_field *field); | |
1179 | %rename("_bt_ctf_field_put") bt_ctf_field_put(struct bt_ctf_field *field); | |
1180 | ||
1181 | struct bt_ctf_field *bt_ctf_field_create(struct bt_ctf_field_type *type); | |
1182 | struct bt_ctf_field *bt_ctf_field_structure_get_field(struct bt_ctf_field *structure, const char *name); | |
1183 | struct bt_ctf_field *bt_ctf_field_array_get_field(struct bt_ctf_field *array, uint64_t index); | |
1184 | int bt_ctf_field_sequence_set_length(struct bt_ctf_field *sequence, struct bt_ctf_field *length_field); | |
1185 | struct bt_ctf_field *bt_ctf_field_sequence_get_field(struct bt_ctf_field *sequence, uint64_t index); | |
1186 | struct bt_ctf_field *bt_ctf_field_variant_get_field(struct bt_ctf_field *variant, struct bt_ctf_field *tag); | |
1187 | struct bt_ctf_field *bt_ctf_field_enumeration_get_container(struct bt_ctf_field *enumeration); | |
1188 | int bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *integer, int64_t value); | |
1189 | int bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *integer, uint64_t value); | |
1190 | int bt_ctf_field_floating_point_set_value(struct bt_ctf_field *floating_point, double value); | |
1191 | int bt_ctf_field_string_set_value(struct bt_ctf_field *string, const char *value); | |
1192 | void bt_ctf_field_get(struct bt_ctf_field *field); | |
1193 | void bt_ctf_field_put(struct bt_ctf_field *field); | |
1194 | ||
1195 | /* ================================================================= | |
1196 | EVENT.H | |
1197 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1198 | */ | |
1199 | %rename("_bt_ctf_event_class_create") bt_ctf_event_class_create(const char *name); | |
1200 | %rename("_bt_ctf_event_class_add_field") bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class, struct bt_ctf_field_type *type, const char *name); | |
1201 | %rename("_bt_ctf_event_class_get") bt_ctf_event_class_get(struct bt_ctf_event_class *event_class); | |
1202 | %rename("_bt_ctf_event_class_put") bt_ctf_event_class_put(struct bt_ctf_event_class *event_class); | |
1203 | %rename("_bt_ctf_event_create") bt_ctf_event_create(struct bt_ctf_event_class *event_class); | |
1204 | %rename("_bt_ctf_event_set_payload") bt_ctf_event_set_payload(struct bt_ctf_event *event, const char *name, struct bt_ctf_field *value); | |
1205 | %rename("_bt_ctf_event_get_payload") bt_ctf_event_get_payload(struct bt_ctf_event *event, const char *name); | |
1206 | %rename("_bt_ctf_event_get") bt_ctf_event_get(struct bt_ctf_event *event); | |
1207 | %rename("_bt_ctf_event_put") bt_ctf_event_put(struct bt_ctf_event *event); | |
1208 | ||
1209 | struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name); | |
1210 | int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class, struct bt_ctf_field_type *type, const char *name); | |
1211 | void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class); | |
1212 | void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class); | |
1213 | struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class); | |
1214 | int bt_ctf_event_set_payload(struct bt_ctf_event *event, const char *name, struct bt_ctf_field *value); | |
1215 | struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event, const char *name); | |
1216 | void bt_ctf_event_get(struct bt_ctf_event *event); | |
1217 | void bt_ctf_event_put(struct bt_ctf_event *event); | |
1218 | ||
1219 | /* ================================================================= | |
1220 | STREAM.H | |
1221 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1222 | */ | |
1223 | %rename("_bt_ctf_stream_class_create") bt_ctf_stream_class_create(const char *name); | |
1224 | %rename("_bt_ctf_stream_class_set_clock") bt_ctf_stream_class_set_clock(struct bt_ctf_stream_class *stream_class, struct bt_ctf_clock *clock); | |
1225 | %rename("_bt_ctf_stream_class_add_event_class") bt_ctf_stream_class_add_event_class(struct bt_ctf_stream_class *stream_class, struct bt_ctf_event_class *event_class); | |
1226 | %rename("_bt_ctf_stream_class_get") bt_ctf_stream_class_get(struct bt_ctf_stream_class *stream_class); | |
1227 | %rename("_bt_ctf_stream_class_put") bt_ctf_stream_class_put(struct bt_ctf_stream_class *stream_class); | |
1228 | %rename("_bt_ctf_stream_append_discarded_events") bt_ctf_stream_append_discarded_events(struct bt_ctf_stream *stream, uint64_t event_count); | |
1229 | %rename("_bt_ctf_stream_append_event") bt_ctf_stream_append_event(struct bt_ctf_stream *stream, struct bt_ctf_event *event); | |
1230 | %rename("_bt_ctf_stream_flush") bt_ctf_stream_flush(struct bt_ctf_stream *stream); | |
1231 | %rename("_bt_ctf_stream_get") bt_ctf_stream_get(struct bt_ctf_stream *stream); | |
1232 | %rename("_bt_ctf_stream_put") bt_ctf_stream_put(struct bt_ctf_stream *stream); | |
1233 | ||
1234 | struct bt_ctf_stream_class *bt_ctf_stream_class_create(const char *name); | |
1235 | int bt_ctf_stream_class_set_clock(struct bt_ctf_stream_class *stream_class, struct bt_ctf_clock *clock); | |
1236 | int bt_ctf_stream_class_add_event_class(struct bt_ctf_stream_class *stream_class, struct bt_ctf_event_class *event_class); | |
1237 | void bt_ctf_stream_class_get(struct bt_ctf_stream_class *stream_class); | |
1238 | void bt_ctf_stream_class_put(struct bt_ctf_stream_class *stream_class); | |
1239 | void bt_ctf_stream_append_discarded_events(struct bt_ctf_stream *stream, uint64_t event_count); | |
1240 | int bt_ctf_stream_append_event(struct bt_ctf_stream *stream, struct bt_ctf_event *event); | |
1241 | int bt_ctf_stream_flush(struct bt_ctf_stream *stream); | |
1242 | void bt_ctf_stream_get(struct bt_ctf_stream *stream); | |
1243 | void bt_ctf_stream_put(struct bt_ctf_stream *stream); | |
1244 | ||
1245 | /* ================================================================= | |
1246 | WRITER.H | |
1247 | ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ | |
1248 | */ | |
1249 | %rename("_bt_ctf_writer_create") bt_ctf_writer_create(const char *path); | |
1250 | %rename("_bt_ctf_writer_create_stream") bt_ctf_writer_create_stream(struct bt_ctf_writer *writer, struct bt_ctf_stream_class *stream_class); | |
1251 | %rename("_bt_ctf_writer_add_environment_field") bt_ctf_writer_add_environment_field(struct bt_ctf_writer *writer, const char *name, const char *value); | |
1252 | %rename("_bt_ctf_writer_add_clock") bt_ctf_writer_add_clock(struct bt_ctf_writer *writer, struct bt_ctf_clock *clock); | |
1253 | %newobject bt_ctf_writer_get_metadata_string; | |
1254 | %rename("_bt_ctf_writer_get_metadata_string") bt_ctf_writer_get_metadata_string(struct bt_ctf_writer *writer); | |
1255 | %rename("_bt_ctf_writer_flush_metadata") bt_ctf_writer_flush_metadata(struct bt_ctf_writer *writer); | |
1256 | %rename("_bt_ctf_writer_set_byte_order") bt_ctf_writer_set_byte_order(struct bt_ctf_writer *writer, enum bt_ctf_byte_order byte_order); | |
1257 | %rename("_bt_ctf_writer_get") bt_ctf_writer_get(struct bt_ctf_writer *writer); | |
1258 | %rename("_bt_ctf_writer_put") bt_ctf_writer_put(struct bt_ctf_writer *writer); | |
1259 | ||
1260 | struct bt_ctf_writer *bt_ctf_writer_create(const char *path); | |
1261 | struct bt_ctf_stream *bt_ctf_writer_create_stream(struct bt_ctf_writer *writer, struct bt_ctf_stream_class *stream_class); | |
1262 | int bt_ctf_writer_add_environment_field(struct bt_ctf_writer *writer, const char *name, const char *value); | |
1263 | int bt_ctf_writer_add_clock(struct bt_ctf_writer *writer, struct bt_ctf_clock *clock); | |
1264 | char *bt_ctf_writer_get_metadata_string(struct bt_ctf_writer *writer); | |
1265 | void bt_ctf_writer_flush_metadata(struct bt_ctf_writer *writer); | |
1266 | int bt_ctf_writer_set_byte_order(struct bt_ctf_writer *writer, enum bt_ctf_byte_order byte_order); | |
1267 | void bt_ctf_writer_get(struct bt_ctf_writer *writer); | |
1268 | void bt_ctf_writer_put(struct bt_ctf_writer *writer); | |
1269 | ||
1270 | %pythoncode %{ | |
1271 | ||
1272 | class CTFWriter: | |
1273 | class ByteOrder: | |
1274 | BYTE_ORDER_NATIVE = 0 | |
1275 | BYTE_ORDER_LITTLE_ENDIAN = 1 | |
1276 | BYTE_ORDER_BIG_ENDIAN = 2 | |
1277 | BYTE_ORDER_NETWORK = 3 | |
1278 | ||
1279 | class Clock: | |
1280 | def __init__(self, name): | |
1281 | self._c = _bt_ctf_clock_create(name) | |
1282 | if self._c is None: | |
1283 | raise ValueError("Invalid clock name.") | |
1284 | ||
1285 | def __del__(self): | |
1286 | _bt_ctf_clock_put(self._c) | |
1287 | ||
1288 | """ | |
1289 | Set the clock's description. The description appears in the clock's TSDL | |
1290 | meta-data. | |
1291 | """ | |
1292 | def set_description(self, desc): | |
1293 | ret = _bt_ctf_clock_set_description(self._c, desc) | |
1294 | if ret < 0: | |
1295 | raise ValueError("Invalid clock description.") | |
1296 | ||
1297 | """ | |
1298 | Set the clock's frequency (Hz). | |
1299 | """ | |
1300 | def set_frequency(self, freq): | |
1301 | ret = _bt_ctf_clock_set_frequency(self._c, freq) | |
1302 | if ret < 0: | |
1303 | raise ValueError("Invalid frequency value.") | |
1304 | ||
1305 | """ | |
1306 | Set the clock's precision (in clock ticks). | |
1307 | """ | |
1308 | def set_precision(self, precision): | |
1309 | ret = _bt_ctf_clock_set_precision(self._c, precision) | |
1310 | ||
1311 | """ | |
1312 | Set the clock's offset in seconds from POSIX.1 Epoch. | |
1313 | """ | |
1314 | def set_offset_seconds(self, offset_s): | |
1315 | ret = _bt_ctf_clock_set_offset_s(self._c, offset_s) | |
1316 | if ret < 0: | |
1317 | raise ValueError("Invalid offset value.") | |
1318 | ||
1319 | """ | |
1320 | Set the clock's offset in ticks from POSIX.1 Epoch + offset in seconds. | |
1321 | """ | |
1322 | def set_offset_seconds(self, offset): | |
1323 | ret = _bt_ctf_clock_set_offset(self._c, offset) | |
1324 | if ret < 0: | |
1325 | raise ValueError("Invalid offset value.") | |
1326 | ||
1327 | """ | |
1328 | Set a clock's absolute attribute. A clock is absolute if the clock | |
1329 | is a global reference across the trace's other clocks. | |
1330 | """ | |
1331 | def set_is_absolute(self, is_absolute): | |
1332 | ret = _bt_ctf_clock_set_is_absolute(self._c, is_absolute) | |
1333 | if ret < 0: | |
1334 | raise ValueError("Could not set the clock's absolute attribute.") | |
1335 | ||
1336 | """ | |
1337 | Set the current time in nanoseconds since the clock's origin (offset and | |
1338 | offset_s attributes). The clock's value will be sampled as events are | |
1339 | appended to a stream. | |
1340 | """ | |
1341 | def set_time(self, time): | |
1342 | ret = _bt_ctf_clock_set_time(self._c, time) | |
1343 | if ret < 0: | |
1344 | raise ValueError("Invalid time value.") | |
1345 | ||
1346 | class FieldType: | |
1347 | """ | |
1348 | FieldType should not be instantiated directly. Please instantiate | |
1349 | one of the concrete FieldType classes. | |
1350 | """ | |
1351 | class IntegerBase: | |
1352 | # These values are based on the bt_ctf_integer_base enum | |
1353 | # declared in event-types.h. | |
1354 | INTEGER_BASE_UNKNOWN = -1 | |
1355 | INTEGER_BASE_BINARY = 2 | |
1356 | INTEGER_BASE_OCTAL = 8 | |
1357 | INTEGER_BASE_DECIMAL = 10 | |
1358 | INTEGER_BASE_HEXADECIMAL = 16 | |
1359 | ||
1360 | def __init__(self): | |
1361 | if self._ft is None: | |
1362 | raise ValueError("FieldType creation failed.") | |
1363 | ||
1364 | def __del__(self): | |
1365 | _bt_ctf_field_type_put(self._ft) | |
1366 | ||
1367 | """ | |
1368 | Set the field type's alignment. Defaults to 1 (bit-aligned). However, | |
1369 | some types, such as structures and string, may impose other alignment | |
1370 | constraints. | |
1371 | """ | |
1372 | def set_alignment(self, alignment): | |
1373 | ret = _bt_ctf_field_type_set_alignment(self._ft, alignment) | |
1374 | if ret < 0: | |
1375 | raise ValueError("Invalid alignment value.") | |
1376 | ||
1377 | """ | |
1378 | Set the field type's byte order. Use constants defined in the ByteOrder | |
1379 | class. | |
1380 | """ | |
1381 | def set_byte_order(self, byte_order): | |
1382 | ret = _bt_ctf_field_type_set_byte_order(self._ft, byte_order) | |
1383 | if ret < 0: | |
1384 | raise ValueError("Could not set byte order value.") | |
1385 | ||
1386 | class FieldTypeInteger(FieldType): | |
1387 | """ | |
1388 | Create a new integer field type of the given size. | |
1389 | """ | |
1390 | def __init__(self, size): | |
1391 | self._ft = _bt_ctf_field_type_integer_create(size) | |
1392 | super().__init__() | |
1393 | ||
1394 | """ | |
1395 | Set an integer type's signedness attribute. | |
1396 | """ | |
1397 | def set_signed(self, signed): | |
1398 | ret = _bt_ctf_field_type_integer_set_signed(self._ft, signed) | |
1399 | if ret < 0: | |
1400 | raise ValueError("Could not set signed attribute.") | |
1401 | ||
1402 | """ | |
1403 | Set the integer type's base used to pretty-print the resulting trace. | |
1404 | The base must be a constant of the IntegerBase class. | |
1405 | """ | |
1406 | def set_base(self, base): | |
1407 | ret = _bt_ctf_field_type_integer_set_base(self._ft, base) | |
1408 | if ret < 0: | |
1409 | raise ValueError("Could not set base value.") | |
1410 | ||
1411 | """ | |
1412 | An integer encoding may be set to signal that the integer must be printed | |
1413 | as a text character. Must be a constant from the CTFStringEncoding class. | |
1414 | """ | |
1415 | def set_encoding(self, encoding): | |
1416 | ret = _bt_ctf_field_type_integer_set_encoding(self._ft, encoding) | |
1417 | if ret < 0: | |
1418 | raise ValueError("Could not set integer encoding.") | |
1419 | ||
1420 | class FieldTypeEnumeration(FieldType): | |
1421 | """ | |
1422 | Create a new enumeration field type with the given underlying type. | |
1423 | """ | |
1424 | def __init__(self, integer_type): | |
1425 | if integer_type is None or not isinstance(integer_type, CTFWriter.FieldTypeInteger): | |
1426 | raise TypeError("Invalid integer container.") | |
1427 | ||
1428 | self._ft = _bt_ctf_field_type_enumeration_create(integer_type._ft) | |
1429 | super().__init__() | |
1430 | ||
1431 | """ | |
1432 | Add a mapping to the enumeration. The range's values are inclusive. | |
1433 | """ | |
1434 | def add_mapping(self, name, range_start, range_end): | |
1435 | ret = _bt_ctf_field_type_enumeration_add_mapping(self._ft, name, range_start, range_end) | |
1436 | if ret < 0: | |
1437 | raise ValueError("Could not add mapping to enumeration type.") | |
1438 | ||
1439 | class FieldTypeFloatingPoint(FieldType): | |
1440 | FLT_EXP_DIG = 8 | |
1441 | DBL_EXP_DIG = 11 | |
1442 | FLT_MANT_DIG = 24 | |
1443 | DBL_MANT_DIG = 53 | |
1444 | ||
1445 | """ | |
1446 | Create a new floating point field type. | |
1447 | """ | |
1448 | def __init__(self): | |
1449 | self._ft = _bt_ctf_field_type_floating_point_create() | |
1450 | super().__init__() | |
1451 | ||
1452 | """ | |
1453 | Set the number of exponent digits to use to store the floatingpoint field. | |
1454 | The only values currently supported are FLT_EXP_DIG and DBL_EXP_DIG which | |
1455 | are defined as constants of this class. | |
1456 | """ | |
1457 | def set_exponent_digits(self, exponent_digits): | |
1458 | ret = _bt_ctf_field_type_floating_point_set_exponent_digits(self._ft, exponent_digits) | |
1459 | if ret < 0: | |
1460 | raise ValueError("Could not set exponent digit count.") | |
1461 | ||
1462 | """ | |
1463 | Set the numberof mantissa digits to use to store the floatingpoint field. | |
1464 | The only values currently supported are FLT_MANT_DIG and DBL_MANT_DIG which | |
1465 | are defined as constants of this class. | |
1466 | """ | |
1467 | def set_mantissa_digits(self, mantissa_digits): | |
1468 | ret = _bt_ctf_field_type_floating_point_set_mantissa_digits(self._ft, mantissa_digits) | |
1469 | if ret < 0: | |
1470 | raise ValueError("Could not set mantissa digit count.") | |
1471 | ||
1472 | class FieldTypeStructure(FieldType): | |
1473 | """ | |
1474 | Create a new structure field type. | |
1475 | """ | |
1476 | def __init__(self): | |
1477 | self._ft = _bt_ctf_field_type_structure_create() | |
1478 | super().__init__() | |
1479 | ||
1480 | """ | |
1481 | Add a field of type "field_type" to the structure. | |
1482 | """ | |
1483 | def add_field(self, field_type, field_name): | |
1484 | ret = _bt_ctf_field_type_structure_add_field(self._ft, field_type._ft, field_name) | |
1485 | if ret < 0: | |
1486 | raise ValueError("Could not add field to structure.") | |
1487 | ||
1488 | class FieldTypeVariant(FieldType): | |
1489 | """ | |
1490 | Create a new variant field type. | |
1491 | """ | |
1492 | def __init__(self, enum_tag, tag_name): | |
1493 | if enum_tag is None or not isinstance(enum_tag, CTFWriter.FieldTypeEnumeration): | |
1494 | raise TypeError("Invalid tag type; must be of type FieldTypeEnumeration.") | |
1495 | ||
1496 | self._ft = _bt_ctf_field_type_variant_create(enum_tag._ft, tag_name) | |
1497 | super().__init__() | |
1498 | ||
1499 | """ | |
1500 | Add a field of type "field_type" to the variant. | |
1501 | """ | |
1502 | def add_field(self, field_type, field_name): | |
1503 | ret = _bt_ctf_field_type_variant_add_field(self._ft, field_type._ft, field_name) | |
1504 | if ret < 0: | |
1505 | raise ValueError("Could not add field to variant.") | |
1506 | ||
1507 | class FieldTypeArray(FieldType): | |
1508 | """ | |
1509 | Create a new array field type. | |
1510 | """ | |
1511 | def __init__(self, element_type, length): | |
1512 | self._ft = _bt_ctf_field_type_array_create(element_type._ft, length) | |
1513 | super().__init__() | |
1514 | ||
1515 | class FieldTypeSequence(FieldType): | |
1516 | """ | |
1517 | Create a new sequence field type. | |
1518 | """ | |
1519 | def __init__(self, element_type, length_field_name): | |
1520 | self._ft = _bt_ctf_field_type_sequence_create(element_type._ft, length_field_name) | |
1521 | super().__init__() | |
1522 | ||
1523 | class FieldTypeString(FieldType): | |
1524 | """ | |
1525 | Create a new string field type. | |
1526 | """ | |
1527 | def __init__(self): | |
1528 | self._ft = _bt_ctf_field_type_string_create() | |
1529 | super().__init__() | |
1530 | ||
1531 | """ | |
1532 | Set a string type's encoding. Must be a constant from the CTFStringEncoding class. | |
1533 | """ | |
1534 | def set_encoding(self, encoding): | |
1535 | ret = _bt_ctf_field_type_string_set_encoding(self._ft, encoding) | |
1536 | if ret < 0: | |
1537 | raise ValueError("Could not set string encoding.") | |
1538 | ||
1539 | """ | |
1540 | Create an instance of a field. | |
1541 | """ | |
1542 | @staticmethod | |
1543 | def create_field(self, field_type): | |
1544 | if field_type is None or not isinstance(field_type, CTFWriter.FieldType): | |
1545 | raise TypeError("Invalid field_type. Type must be a FieldType-derived class.") | |
1546 | ||
1547 | if isinstance(field_type, CTFWriter.FieldTypeInteger): | |
1548 | return CTFWriter.FieldInteger(field_type) | |
1549 | elif isinstance(field_type, CTFWriter.FieldTypeEnumeration): | |
1550 | return CTFWriter.FieldEnumeration(field_type) | |
1551 | elif isinstance(field_type, CTFWriter.FieldTypeFloatingPoint): | |
1552 | return CTFWriter.FieldFloatingPoint(field_type) | |
1553 | elif isinstance(field_type, CTFWriter.FieldTypeStructure): | |
1554 | return CTFWriter.FieldStructure(field_type) | |
1555 | elif isinstance(field_type, CTFWriter.FieldTypeVariant): | |
1556 | return CTFWriter.FieldVariant(field_type) | |
1557 | elif isinstance(field_type, CTFWriter.FieldTypeArray): | |
1558 | return CTFWriter.FieldArray(field_type) | |
1559 | elif isinstance(field_type, CTFWriter.FieldTypeSequence): | |
1560 | return CTFWriter.FieldSequence(field_type) | |
1561 | elif isinstance(field_type, CTFWriter.FieldTypeString): | |
1562 | return CTFWriter.FieldString(field_type) | |
1563 | ||
1564 | class Field: | |
1565 | """ | |
1566 | Base class, do not instantiate. | |
1567 | """ | |
1568 | def __init__(self, field_type): | |
1569 | if not isinstance(field_type, CTFWriter.FieldType): | |
1570 | raise TypeError("Invalid field_type argument.") | |
1571 | ||
1572 | self._f = _bt_ctf_field_create(field_type._ft) | |
1573 | if self._f is None: | |
1574 | raise ValueError("Field creation failed.") | |
1575 | ||
1576 | def __del__(self): | |
1577 | _bt_ctf_field_put(self._f) | |
1578 | ||
1579 | @staticmethod | |
1580 | def _create_field_from_native_instance(native_field_instance): | |
1581 | type_dict = { | |
1582 | CTFTypeId.INTEGER : CTFWriter.FieldInteger, | |
1583 | CTFTypeId.FLOAT : CTFWriter.FieldFloatingPoint, | |
1584 | CTFTypeId.ENUM : CTFWriter.FieldEnumeration, | |
1585 | CTFTypeId.STRING : CTFWriter.FieldString, | |
1586 | CTFTypeId.STRUCT : CTFWriter.FieldStructure, | |
1587 | CTFTypeId.VARIANT : CTFWriter.FieldVariant, | |
1588 | CTFTypeId.ARRAY : CTFWriter.FieldArray, | |
1589 | CTFTypeId.SEQUENCE : CTFWriter.FieldSequence | |
1590 | } | |
1591 | ||
1592 | field_type = _bt_python_get_field_type(native_field_instance) | |
1593 | if field_type == CTFTypeId.UNKNOWN: | |
1594 | raise TypeError("Invalid field instance") | |
1595 | ||
1596 | field = CTFWriter.Field.__new__(CTFWriter.Field) | |
1597 | field._f = native_field_instance | |
1598 | field.__class__ = type_dict[field_type] | |
1599 | return field | |
1600 | ||
1601 | class FieldInteger(Field): | |
1602 | """ | |
1603 | Set an integer field's value. | |
1604 | """ | |
1605 | def set_value(self, value): | |
1606 | signedness = _bt_python_field_integer_get_signedness(self._f) | |
1607 | if signedness < 0: | |
1608 | raise TypeError("Invalid integer instance.") | |
1609 | ||
1610 | if signedness == 0: | |
1611 | ret = _bt_ctf_field_unsigned_integer_set_value(self._f, value) | |
1612 | else: | |
1613 | ret = _bt_ctf_field_signed_integer_set_value(self._f, value) | |
1614 | ||
1615 | if ret < 0: | |
1616 | raise ValueError("Could not set integer field value.") | |
1617 | ||
1618 | class FieldEnumeration(Field): | |
1619 | """ | |
1620 | Return the enumeration's underlying container field (an integer field). | |
1621 | """ | |
1622 | def get_container(self): | |
1623 | container = CTFWriter.FieldInteger.__new__(CTFWriter.FieldInteger) | |
1624 | container._f = _bt_ctf_field_enumeration_get_container(self._f) | |
1625 | if container._f is None: | |
1626 | raise TypeError("Invalid enumeration field type.") | |
1627 | return container | |
1628 | ||
1629 | class FieldFloatingPoint(Field): | |
1630 | """ | |
1631 | Set a floating point field's value. | |
1632 | """ | |
1633 | def set_value(self, value): | |
1634 | ret = _bt_ctf_field_floating_point_set_value(self._f, value) | |
1635 | if ret < 0: | |
1636 | raise ValueError("Could not set floating point field value.") | |
1637 | ||
1638 | class FieldStructure(Field): | |
1639 | """ | |
1640 | Get the structure's field corresponding to the provided field name. | |
1641 | """ | |
1642 | def get_field(self, field_name): | |
1643 | native_instance = _bt_ctf_field_structure_get_field(self._f, field_name) | |
1644 | if native_instance is None: | |
1645 | raise ValueError("Invalid field_name provided.") | |
1646 | return CTFWriter.Field._create_field_from_native_instance(native_instance) | |
1647 | ||
1648 | class FieldVariant(Field): | |
1649 | """ | |
1650 | Return the variant's selected field. The "tag" field is the selector enum field. | |
1651 | """ | |
1652 | def get_field(self, tag): | |
1653 | native_instance = _bt_ctf_field_variant_get_field(self._f, tag._f) | |
1654 | if native_instance is None: | |
1655 | raise ValueError("Invalid tag provided.") | |
1656 | return CTFWriter.Field._create_field_from_native_instance(native_instance) | |
1657 | ||
1658 | class FieldArray(Field): | |
1659 | """ | |
1660 | Return the array's field at position "index". | |
1661 | """ | |
1662 | def get_field(self, index): | |
1663 | native_instance = _bt_ctf_field_array_get_field(self._f, index) | |
1664 | if native_instance is None: | |
1665 | raise IndexError("Invalid index provided.") | |
1666 | return CTFWriter.Field._create_field_from_native_instance(native_instance) | |
1667 | ||
1668 | class FieldSequence(Field): | |
1669 | """ | |
1670 | Set the sequence's length field (IntegerField). | |
1671 | """ | |
1672 | def set_length(self, length): | |
1673 | if not isinstance(length, CTFWriter.FieldInteger): | |
1674 | raise TypeError("Invalid length field.") | |
1675 | ret = _bt_ctf_field_sequence_set_length(self._f, length._f) | |
1676 | if ret < 0: | |
1677 | raise ValueError("Could not set sequence length.") | |
1678 | ||
1679 | """ | |
1680 | Return the sequence's field at position "index". | |
1681 | """ | |
1682 | def get_field(self, index): | |
1683 | native_instance = _bt_ctf_field_sequence_get_field(self._f, index) | |
1684 | if native_instance is None: | |
1685 | raise ValueError("Could not get sequence element at index.") | |
1686 | return CTFWriter.Field._create_field_from_native_instance(native_instance) | |
1687 | ||
1688 | class FieldString(Field): | |
1689 | """ | |
1690 | Set a string field's value. | |
1691 | """ | |
1692 | def set_value(self, value): | |
1693 | ret = _bt_ctf_field_string_set_value(self._f, value) | |
1694 | if ret < 0: | |
1695 | raise ValueError("Could not set string field value.") | |
1696 | ||
1697 | class EventClass: | |
1698 | """ | |
1699 | Create a new event class of the given name. | |
1700 | """ | |
1701 | def __init__(self, name): | |
1702 | self._ec = _bt_ctf_event_class_create(name) | |
1703 | if self._ec is None: | |
1704 | raise ValueError("Event class creation failed.") | |
1705 | ||
1706 | def __del__(self): | |
1707 | _bt_ctf_event_class_put(self._ec) | |
1708 | ||
1709 | """ | |
1710 | Add a field of type "field_type" to the event class. | |
1711 | """ | |
1712 | def add_field(self, field_type, field_name): | |
1713 | ret = _bt_ctf_event_class_add_field(self._ec, field_type._ft, field_name) | |
1714 | if ret < 0: | |
1715 | raise ValueError("Could not add field to event class.") | |
1716 | ||
1717 | class Event: | |
1718 | """ | |
1719 | Create a new event of the given event class. | |
1720 | """ | |
1721 | def __init__(self, event_class): | |
1722 | if not isinstance(event_class, CTFWriter.EventClass): | |
1723 | raise TypeError("Invalid event_class argument.") | |
1724 | ||
1725 | self._e = _bt_ctf_event_create(event_class._ec) | |
1726 | if self._e is None: | |
1727 | raise ValueError("Event creation failed.") | |
1728 | ||
1729 | def __del__(self): | |
1730 | _bt_ctf_event_put(self._e) | |
1731 | ||
1732 | """ | |
1733 | Set a manually created field as an event's payload. | |
1734 | """ | |
1735 | def set_payload(self, field_name, value): | |
1736 | if not isinstance(value, CTFWriter.Field): | |
1737 | raise TypeError("Invalid value type.") | |
1738 | ret = _bt_ctf_event_set_payload(self._e, field_name, value._f) | |
1739 | if ret < 0: | |
1740 | raise ValueError("Could not set event field payload.") | |
1741 | ||
1742 | """ | |
1743 | Set a manually created field as an event's payload. | |
1744 | """ | |
1745 | def get_payload(self, field_name): | |
1746 | native_instance = _bt_ctf_event_get_payload(self._e, field_name) | |
1747 | if native_instance is None: | |
1748 | raise ValueError("Could not get event payload.") | |
1749 | return CTFWriter.Field._create_field_from_native_instance(native_instance) | |
1750 | ||
1751 | class StreamClass: | |
1752 | """ | |
1753 | Create a new stream class of the given name. | |
1754 | """ | |
1755 | def __init__(self, name): | |
1756 | self._sc = _bt_ctf_stream_class_create(name) | |
1757 | if self._sc is None: | |
1758 | raise ValueError("Stream class creation failed.") | |
1759 | ||
1760 | def __del__(self): | |
1761 | _bt_ctf_stream_class_put(self._sc) | |
1762 | ||
1763 | """ | |
1764 | Assign a clock to a stream class. | |
1765 | """ | |
1766 | def set_clock(self, clock): | |
1767 | if not isinstance(clock, CTFWriter.Clock): | |
1768 | raise TypeError("Invalid clock type.") | |
1769 | ||
1770 | ret = _bt_ctf_stream_class_set_clock(self._sc, clock._c) | |
1771 | if ret < 0: | |
1772 | raise ValueError("Could not set stream class clock.") | |
1773 | ||
1774 | """ | |
1775 | Add an event class to a stream class. New events can be added even after a | |
1776 | stream has beem instanciated and events have been appended. However, a stream | |
1777 | will not accept events of a class that has not been registered beforehand. | |
1778 | """ | |
1779 | def add_event_class(self, event_class): | |
1780 | if not isinstance(event_class, CTFWriter.EventClass): | |
1781 | raise TypeError("Invalid event_class type.") | |
1782 | ||
1783 | ret = _bt_ctf_stream_class_add_event_class(self._sc, event_class._ec) | |
1784 | if ret < 0: | |
1785 | raise ValueError("Could not add event class.") | |
1786 | ||
1787 | class Stream: | |
1788 | """ | |
1789 | Create a stream of the given class. | |
1790 | """ | |
1791 | def __init__(self, stream_class): | |
1792 | if not isinstance(stream_class, CTFWriter.StreamClass): | |
1793 | raise TypeError("Invalid stream_class type.") | |
1794 | ||
1795 | self._s = _bt_ctf_stream_create(stream_class._sc) | |
1796 | if self._s is None: | |
1797 | raise ValueError("Stream creation failed.") | |
1798 | ||
1799 | def __del__(self): | |
1800 | _bt_ctf_stream_put(self._s) | |
1801 | ||
1802 | """ | |
1803 | Increase the current packet's discarded event count. | |
1804 | """ | |
1805 | def append_discarded_events(self, event_count): | |
1806 | ret = _bt_ctf_stream_append_discarded_events(self._s, event_count) | |
1807 | if ret < 0: | |
1808 | raise ValueError("Could not append discarded events.") | |
1809 | ||
1810 | """ | |
1811 | Append "event" to the stream's current packet. The stream's associated clock | |
1812 | will be sampled during this call. The event shall not be modified after | |
1813 | being appended to a stream. | |
1814 | """ | |
1815 | def append_event(self, event): | |
1816 | ret = _bt_ctf_stream_append_event(self._s, event._e) | |
1817 | if ret < 0: | |
1818 | raise ValueError("Could not append event to stream.") | |
1819 | ||
1820 | """ | |
1821 | The stream's current packet's events will be flushed to disk. Events | |
1822 | subsequently appended to the stream will be added to a new packet. | |
1823 | """ | |
1824 | def flush(self): | |
1825 | ret = _bt_ctf_stream_flush(self._s) | |
1826 | if ret < 0: | |
1827 | raise ValueError("Could not flush stream.") | |
1828 | ||
1829 | class Writer: | |
1830 | """ | |
1831 | Create a new writer that will produce a trace in the given path. | |
1832 | """ | |
1833 | def __init__(self, path): | |
1834 | self._w = _bt_ctf_writer_create(path) | |
1835 | if self._w is None: | |
1836 | raise ValueError("Writer creation failed.") | |
1837 | ||
1838 | def __del__(self): | |
1839 | _bt_ctf_writer_put(self._w) | |
1840 | ||
1841 | """ | |
1842 | Create a new stream instance and register it to the writer. | |
1843 | """ | |
1844 | def create_stream(self, stream_class): | |
1845 | if not isinstance(stream_class, CTFWriter.StreamClass): | |
1846 | raise TypeError("Invalid stream_class type.") | |
1847 | ||
1848 | stream = CTFWriter.Stream.__new__(CTFWriter.Stream) | |
1849 | stream._s = _bt_ctf_writer_create_stream(self._w, stream_class._sc) | |
1850 | return stream | |
1851 | ||
1852 | """ | |
1853 | Add an environment field to the trace. | |
1854 | """ | |
1855 | def add_environment_field(self, name, value): | |
1856 | ret = _bt_ctf_writer_add_environment_field(self._w, name, value) | |
1857 | if ret < 0: | |
1858 | raise ValueError("Could not add environment field to trace.") | |
1859 | ||
1860 | """ | |
1861 | Add a clock to the trace. Clocks assigned to stream classes must be | |
1862 | registered to the writer. | |
1863 | """ | |
1864 | def add_clock(self, clock): | |
1865 | ret = _bt_ctf_writer_add_clock(self._w, clock._c) | |
1866 | if ret < 0: | |
1867 | raise ValueError("Could not add clock to Writer.") | |
1868 | ||
1869 | """ | |
1870 | Get the trace's TSDL meta-data. | |
1871 | """ | |
1872 | def get_metadata(self): | |
1873 | return _bt_ctf_writer_get_metadata_string(self._w) | |
1874 | ||
1875 | """ | |
1876 | Flush the trace's metadata to the metadata file. | |
1877 | """ | |
1878 | def flush_metadata(self): | |
1879 | _bt_ctf_writer_flush_metadata(self._w) | |
1880 | ||
1881 | """ | |
1882 | Set the trace's byte order. Must be a constant from the ByteOrder | |
1883 | class. Defaults to BYTE_ORDER_NATIVE, the host machine's endianness. | |
1884 | """ | |
1885 | def set_byte_order(self, byte_order): | |
1886 | ret = _bt_ctf_writer_set_byte_order(self._w, byte_order) | |
1887 | if ret < 0: | |
1888 | raise ValueError("Could not set trace's byte order.") | |
1889 | ||
1890 | %} |