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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Xiangxiu Yang |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
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19 | /* |
911b7a3c |
20 | This file is what every viewer plugin writer should refer to. |
21 | |
911b7a3c |
22 | - Remove the _api functions which add nothing |
23 | - streamline the rest. |
24 | |
25 | A viewer plugin is, before anything, a plugin. It thus has an init and |
26 | a destroy function called whenever it is loaded/initialized and |
27 | unloaded/destroyed. A viewer depends on lttvwindow and thus uses its init and |
28 | destroy functions to register viewer related hooks defined in this file. |
29 | |
30 | The lifetime of a viewer is as follows. The viewer constructor function is |
31 | called each time an instance view is created (one subwindow of this viewer |
32 | type is created by the user). Thereafter, the viewer gets hooks called for |
33 | different purposes by the window containing it. These hooks are detailed |
34 | below. |
35 | |
36 | show: called initially once the trace, position and time window are known. |
37 | Do the drawing or register hooks |
38 | process_trace for show: hooks called |
39 | show_end: remove the hooks |
40 | |
41 | background_init: prepare for background computation (comes after show_end). |
42 | process_trace for background: done in small chunks in gtk_idle, hooks called. |
43 | background_end: remove the hooks and perhaps update the window. |
44 | |
45 | update: called when the windows is exposed/resized, the time window is changed, |
46 | the current time is changed or the traceset is changed (different |
47 | traceset or traces added/removed. Redraw or register hooks. |
48 | process_trace for update: hooks called |
49 | update_end: remove the hooks. |
50 | |
51 | There may be different versions of update functions for the different cases, |
52 | or the type of update may be described in an argument. The expose method |
53 | normally provides the exposed region. This should be used to register hooks |
54 | to process_traceset but also tell about the time interval for which it is |
55 | required. Then, a expose_end will be required to remove the hooks and finish |
56 | the display as needed. |
57 | |
58 | In most cases, the enclosing window knows about updates such as a new trace |
59 | added to a traceset, time window updates caused by scrolling and even |
60 | expose events. There are a few cases, however, where updates are caused by |
61 | actions known by a view instance. For example, clicking in a view may update |
62 | the current time; all viewers within the same window must be told about the |
63 | new current time to change the currently highlighted time point. A viewer |
64 | reports such events by calling report_update on its lttvwindow. The lttvwindow |
65 | will thereafter call update for each of its contained viewers. |
66 | |
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67 | |
68 | Things that can happen to a viewer: |
69 | |
70 | update_time_window |
71 | update_current_time |
72 | update_traceset |
73 | update_filter |
74 | show_viewer |
75 | update_dividor |
911b7a3c |
76 | ?? Reshape, damage as gtk methods ?? |
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77 | |
78 | Things that a viewer can do: |
79 | |
80 | update_status |
81 | set_time_window |
82 | set_current_time |
83 | update_traceset? |
84 | update_filter? |
85 | show_viewer? |
86 | set_focused_pane |
87 | set_hpane_dividor |
88 | */ |
89 | |
90 | |
91 | |
92 | |
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93 | /*! \file viewer.h |
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94 | * \brief API used by the graphical viewers to interact with their top window. |
95 | * |
96 | * Main window (gui module) is the place to contain and display viewers. |
97 | * Viewers (lttv plugins) interacte with main window through this API and |
98 | * events sent by gtk. |
99 | * This header file should be included in each graphic module. |
100 | * This library is used by graphical modules to interact with the |
101 | * tracesetWindow. |
102 | * |
103 | */ |
104 | |
105 | #include <gtk/gtk.h> |
106 | #include <ltt/ltt.h> |
107 | #include <lttv/hook.h> |
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108 | #include <lttvwindow/common.h> |
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109 | #include <lttv/stats.h> |
110 | |
111 | /** |
112 | * Function to register a view constructor so that main window can generate |
113 | * a toolbar item for the viewer in order to generate a new instance easily. |
114 | * It will be called by init function of the module. |
115 | * @param ButtonPixmap image shown on the toolbar item. |
116 | * @param tooltip tooltip of the toolbar item. |
117 | * @param view_constructor constructor of the viewer. |
118 | */ |
119 | |
120 | void toolbar_item_reg(char ** pixmap, char *tooltip, lttv_constructor view_constructor); |
121 | |
122 | |
123 | /** |
124 | * Function to unregister the viewer's constructor, release the space |
125 | * occupied by pixmap, tooltip and constructor of the viewer. |
126 | * It will be called when a module is unloaded. |
127 | * @param view_constructor constructor of the viewer which is used as |
128 | * a reference to find out where the pixmap and tooltip are. |
129 | */ |
130 | |
131 | void toolbar_item_unreg(lttv_constructor view_constructor); |
132 | |
133 | |
134 | /** |
135 | * Function to register a view constructor so that main window can generate |
136 | * a menu item for the viewer in order to generate a new instance easily. |
137 | * It will be called by init function of the module. |
138 | * @param menu_path path of the menu item. |
139 | * @param menu_text text of the menu item. |
140 | * @param view_constructor constructor of the viewer. |
141 | */ |
142 | |
143 | void menu_item_reg(char *menu_path, char *menu_text, lttv_constructor view_constructor); |
144 | |
145 | |
146 | /** |
147 | * Function to unregister the viewer's constructor, release the space |
148 | * occupied by menu_path, menu_text and constructor of the viewer. |
149 | * It will be called when a module is unloaded. |
150 | * @param view_constructor constructor of the viewer which is used as |
151 | * a reference to find out where the menu_path and menu_text are. |
152 | */ |
153 | |
154 | void menu_item_unreg(lttv_constructor view_constructor); |
155 | |
156 | |
157 | /** |
158 | * Update the status bar whenever something changed in the viewer. |
159 | * @param main_win the main window the viewer belongs to. |
160 | * @param info the message which will be shown in the status bar. |
161 | */ |
162 | |
163 | void update_status(MainWindow *main_win, char *info); |
164 | |
165 | |
166 | /** |
167 | * Function to get the current time window of the current tab. |
168 | * It will be called by a viewer's hook function to update the |
169 | * time window of the viewer and also be called by the constructor |
170 | * of the viewer. |
171 | * @param main_win the main window the viewer belongs to. |
172 | * @param time_interval a pointer where time interval will be stored. |
173 | */ |
174 | |
175 | void get_time_window(MainWindow *main_win, TimeWindow *time_window); |
176 | |
177 | |
178 | /** |
179 | * Function to set the time interval of the current tab. |
180 | * It will be called by a viewer's signal handle associated with |
181 | * the move_slider signal |
182 | * @param main_win the main window the viewer belongs to. |
183 | * @param time_interval a pointer where time interval is stored. |
184 | */ |
185 | |
186 | void set_time_window(MainWindow *main_win, TimeWindow *time_window); |
187 | |
188 | /** |
189 | * Function to get the current time/event of the current tab. |
190 | * It will be called by a viewer's hook function to update the |
191 | * current time/event of the viewer. |
192 | * @param main_win the main window the viewer belongs to. |
193 | * @param time a pointer where time will be stored. |
194 | */ |
195 | |
196 | void get_current_time(MainWindow *main_win, LttTime *time); |
197 | |
198 | |
199 | /** |
200 | * Function to set the current time/event of the current tab. |
201 | * It will be called by a viewer's signal handle associated with |
202 | * the button-release-event signal |
203 | * @param main_win the main window the viewer belongs to. |
204 | * @param time a pointer where time is stored. |
205 | */ |
206 | |
207 | void set_current_time(MainWindow *main_win, LttTime *time); |
208 | |
209 | |
210 | /** |
211 | * Function to get the traceset from the current tab. |
212 | * It will be called by the constructor of the viewer and also be |
213 | * called by a hook funtion of the viewer to update its traceset. |
214 | * @param main_win the main window the viewer belongs to. |
215 | * @param traceset a pointer to a traceset. |
216 | */ |
217 | |
218 | //void get_traceset(MainWindow *main_win, Traceset *traceset); |
219 | |
220 | |
221 | /** |
222 | * Function to get the filter of the current tab. |
223 | * It will be called by the constructor of the viewer and also be |
224 | * called by a hook funtion of the viewer to update its filter. |
225 | * @param main_win, the main window the viewer belongs to. |
226 | * @param filter, a pointer to a filter. |
227 | */ |
228 | |
229 | //void get_filter(MainWindow *main_win, Filter *filter); |
230 | |
231 | |
232 | /** |
233 | * Function to register a hook function for a viewer to set/update its |
234 | * time interval. |
235 | * It will be called by the constructor of the viewer. |
236 | * @param hook hook function of the viewer. Takes a TimeInterval* as call_data. |
237 | * @param hook_data hook data associated with the hook function. |
238 | * @param main_win the main window the viewer belongs to. |
239 | */ |
240 | |
241 | void reg_update_time_window(LttvHook hook, gpointer hook_data, |
242 | MainWindow * main_win); |
243 | |
244 | |
245 | /** |
246 | * Function to unregister a viewer's hook function which is used to |
247 | * set/update the time interval of the viewer. |
248 | * It will be called by the destructor of the viewer. |
249 | * @param hook hook function of the viewer. Takes a TimeInterval as call_data. |
250 | * @param hook_data hook data associated with the hook function. |
251 | * @param main_win the main window the viewer belongs to. |
252 | */ |
253 | |
254 | void unreg_update_time_window(LttvHook hook, gpointer hook_data, |
255 | MainWindow * main_win); |
256 | |
257 | |
258 | /** |
259 | * Function to register a hook function for a viewer to set/update its |
260 | * traceset. |
261 | * It will be called by the constructor of the viewer. |
262 | * @param hook hook function of the viewer. |
263 | * @param hook_data hook data associated with the hook function. |
264 | * @param main_win the main window the viewer belongs to. |
265 | */ |
266 | |
267 | void reg_update_traceset(LttvHook hook, gpointer hook_data, |
268 | MainWindow * main_win); |
269 | |
270 | |
271 | /** |
272 | * Function to unregister a viewer's hook function which is used to |
273 | * set/update the traceset of the viewer. |
274 | * It will be called by the destructor of the viewer. |
275 | * @param hook hook function of the viewer. |
276 | * @param hook_data hook data associated with the hook function. |
277 | * @param main_win the main window the viewer belongs to. |
278 | */ |
279 | |
280 | void unreg_update_traceset(LttvHook hook, gpointer hook_data, |
281 | MainWindow * main_win); |
282 | |
283 | |
284 | /** |
285 | * Function to redraw each viewer belonging to the current tab |
286 | * @param main_win the main window the viewer belongs to. |
287 | */ |
288 | |
289 | void update_traceset(MainWindow * main_win); |
290 | |
291 | |
292 | /** |
293 | * Function to register a hook function for a viewer to set/update its |
294 | * filter. |
295 | * It will be called by the constructor of the viewer. |
296 | * @param hook hook function of the viewer. |
297 | * @param hook_data hook data associated with the hook function. |
298 | * @param main_win the main window the viewer belongs to. |
299 | */ |
300 | |
301 | void reg_update_filter(LttvHook hook, gpointer hook_data, |
302 | MainWindow *main_win); |
303 | |
304 | |
305 | /** |
306 | * Function to unregister a viewer's hook function which is used to |
307 | * set/update the filter of the viewer. |
308 | * It will be called by the destructor of the viewer. |
309 | * @param hook hook function of the viewer. |
310 | * @param hook_data hook data associated with the hook function. |
311 | * @param main_win the main window the viewer belongs to. |
312 | */ |
313 | |
314 | void unreg_update_filter(LttvHook hook, gpointer hook_data, |
315 | MainWindow * main_win); |
316 | |
317 | |
318 | /** |
319 | * Function to register a hook function for a viewer to set/update its |
320 | * current time. |
321 | * It will be called by the constructor of the viewer. |
322 | * @param hook hook function of the viewer. |
323 | * @param hook_data hook data associated with the hook function. |
324 | * @param main_win the main window the viewer belongs to. |
325 | */ |
326 | |
327 | void reg_update_current_time(LttvHook hook, gpointer hook_data, |
328 | MainWindow *main_win); |
329 | |
330 | |
331 | /** |
332 | * Function to unregister a viewer's hook function which is used to |
333 | * set/update the current time of the viewer. |
334 | * It will be called by the destructor of the viewer. |
335 | * @param hook hook function of the viewer. |
336 | * @param hook_data hook data associated with the hook function. |
337 | * @param main_win the main window the viewer belongs to. |
338 | */ |
339 | |
340 | void unreg_update_current_time(LttvHook hook, gpointer hook_data, |
341 | MainWindow * main_win); |
342 | |
343 | |
344 | /** |
345 | * Function to register a hook function for a viewer to show |
346 | *the content of the viewer. |
347 | * It will be called by the constructor of the viewer. |
348 | * @param hook hook function of the viewer. |
349 | * @param hook_data hook data associated with the hook function. |
350 | * @param main_win the main window the viewer belongs to. |
351 | */ |
352 | |
353 | void reg_show_viewer(LttvHook hook, gpointer hook_data, |
354 | MainWindow *main_win); |
355 | |
356 | |
357 | /** |
358 | * Function to unregister a viewer's hook function which is used to |
359 | * show the content of the viewer.. |
360 | * It will be called by the destructor of the viewer. |
361 | * @param hook hook function of the viewer. |
362 | * @param hook_data hook data associated with the hook function. |
363 | * @param main_win the main window the viewer belongs to. |
364 | */ |
365 | |
366 | void unreg_show_viewer(LttvHook hook, gpointer hook_data, |
367 | MainWindow * main_win); |
368 | |
369 | |
370 | /** |
371 | * Function to show each viewer in the current tab. |
372 | * It will be called by main window after it called process_traceset |
373 | * @param main_win the main window the viewer belongs to. |
374 | */ |
375 | |
376 | void show_viewer(MainWindow *main_win); |
377 | |
378 | |
379 | /** |
380 | * Function to set the focused pane (viewer). |
381 | * It will be called by a viewer's signal handle associated with |
382 | * the grab_focus signal |
383 | * @param main_win the main window the viewer belongs to. |
384 | * @param paned a pointer to a pane where the viewer is contained. |
385 | */ |
386 | |
387 | void set_focused_pane(MainWindow *main_win, gpointer paned); |
388 | |
389 | |
390 | /** |
391 | * Function to register a hook function for a viewer to set/update the |
392 | * dividor of the hpane. |
393 | * It will be called by the constructor of the viewer. |
394 | * @param hook hook function of the viewer. |
395 | * @param hook_data hook data associated with the hook function. |
396 | * @param main_win the main window the viewer belongs to. |
397 | */ |
398 | |
399 | void reg_update_dividor(LttvHook hook, gpointer hook_data, |
400 | MainWindow *main_win); |
401 | |
402 | |
403 | /** |
404 | * Function to unregister a viewer's hook function which is used to |
405 | * set/update hpane's dividor of the viewer. |
406 | * It will be called by the destructor of the viewer. |
407 | * @param hook hook function of the viewer. |
408 | * @param hook_data hook data associated with the hook function. |
409 | * @param main_win the main window the viewer belongs to. |
410 | */ |
411 | |
412 | void unreg_update_dividor(LttvHook hook, gpointer hook_data, |
413 | MainWindow *main_win); |
414 | |
415 | |
416 | /** |
417 | * Function to set the position of the hpane's dividor (viewer). |
418 | * It will be called by a viewer's signal handle associated with |
419 | * the motion_notify_event event/signal |
420 | * @param main_win the main window the viewer belongs to. |
421 | * @param position position of the hpane's dividor. |
422 | */ |
423 | |
424 | void set_hpane_dividor(MainWindow *main_win, gint position); |
425 | |
426 | |
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427 | /* |
428 | CHECK These functions really should not appear here. Directr calls would |
429 | be OK unless there is a linker problem. |
430 | */ |
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431 | /** |
432 | * Function to process traceset. It will call lttv_process_trace, |
433 | * each view will call this api to get events. |
434 | * @param main_win the main window the viewer belongs to. |
435 | * @param start the start time of the first event to be processed. |
436 | * @param end the end time of the last event to be processed. |
437 | */ |
438 | |
439 | void process_traceset_api(MainWindow *main_win, LttTime start, |
440 | LttTime end, unsigned maxNumEvents); |
441 | |
442 | |
443 | /** |
444 | * Function to add hooks into the context of a traceset, |
445 | * before reading events from traceset, viewer will call this api to |
446 | * register hooks |
447 | * @param main_win the main window the viewer belongs to. |
448 | * @param LttvHooks hooks to be registered. |
449 | */ |
450 | |
451 | void context_add_hooks_api(MainWindow *main_win , |
452 | LttvHooks *before_traceset, |
453 | LttvHooks *after_traceset, |
454 | LttvHooks *check_trace, |
455 | LttvHooks *before_trace, |
456 | LttvHooks *after_trace, |
457 | LttvHooks *check_tracefile, |
458 | LttvHooks *before_tracefile, |
459 | LttvHooks *after_tracefile, |
460 | LttvHooks *check_event, |
461 | LttvHooks *before_event, |
462 | LttvHooks *after_event); |
463 | |
464 | |
465 | /** |
466 | * Function to remove hooks from the context of a traceset, |
467 | * before reading events from traceset, viewer will call this api to |
468 | * unregister hooks |
469 | * @param main_win the main window the viewer belongs to. |
470 | * @param LttvHooks hooks to be registered. |
471 | */ |
472 | |
473 | void context_remove_hooks_api(MainWindow *main_win , |
474 | LttvHooks *before_traceset, |
475 | LttvHooks *after_traceset, |
476 | LttvHooks *check_trace, |
477 | LttvHooks *before_trace, |
478 | LttvHooks *after_trace, |
479 | LttvHooks *check_tracefile, |
480 | LttvHooks *before_tracefile, |
481 | LttvHooks *after_tracefile, |
482 | LttvHooks *check_event, |
483 | LttvHooks *before_event, |
484 | LttvHooks *after_event); |
485 | |
486 | |
487 | /** |
488 | * Function to get the life span of the traceset |
489 | * @param main_win the main window the viewer belongs to. |
490 | * @param start start time of the traceset. |
491 | * @param end end time of the traceset. |
492 | */ |
493 | |
494 | void get_traceset_time_span(MainWindow *main_win, TimeInterval *time_span); |
495 | |
496 | |
497 | /** |
498 | * Function to add/remove event hooks for state |
499 | * @param main_win the main window the viewer belongs to. |
500 | */ |
501 | |
502 | void state_add_event_hooks_api(MainWindow *main_win ); |
503 | void state_remove_event_hooks_api(MainWindow *main_win ); |
504 | |
505 | |
506 | /** |
507 | * Function to add/remove event hooks for stats |
508 | * @param main_win the main window the viewer belongs to. |
509 | */ |
510 | |
511 | void stats_add_event_hooks_api(MainWindow *main_win ); |
512 | void stats_remove_event_hooks_api(MainWindow *main_win ); |
513 | |
514 | |
515 | /** |
516 | * Function to get the stats of the traceset |
517 | * @param main_win the main window the viewer belongs to. |
518 | */ |
519 | |
520 | LttvTracesetStats* get_traceset_stats_api(MainWindow *main_win); |
521 | |
522 | LttvTracesetContext* get_traceset_context(MainWindow *main_win); |