1 : /* ***** BEGIN LICENSE BLOCK *****
2 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 : *
4 : * The contents of this file are subject to the Mozilla Public License Version
5 : * 1.1 (the "License"); you may not use this file except in compliance with
6 : * the License. You may obtain a copy of the License at
7 : * http://www.mozilla.org/MPL/
8 : *
9 : * Software distributed under the License is distributed on an "AS IS" basis,
10 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 : * for the specific language governing rights and limitations under the
12 : * License.
13 : *
14 : * The Original Code is mozilla.org
15 : *
16 : * The Initial Developer of the Original Code is
17 : * Mozilla Foundation
18 : * Portions created by the Initial Developer are Copyright (C) 2011
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Mike Hommey <mh@glandium.org>
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifdef mozilla_StartupTimeline_Event
39 : mozilla_StartupTimeline_Event(PROCESS_CREATION, "process")
40 : mozilla_StartupTimeline_Event(MAIN, "main")
41 : // Record the beginning and end of startup crash detection to compare with crash stats to know whether
42 : // detection should be improved to start or end sooner.
43 : mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_BEGIN, "startupCrashDetectionBegin")
44 : mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_END, "startupCrashDetectionEnd")
45 : mozilla_StartupTimeline_Event(FIRST_PAINT, "firstPaint")
46 : mozilla_StartupTimeline_Event(SESSION_RESTORED, "sessionRestored")
47 : mozilla_StartupTimeline_Event(CREATE_TOP_LEVEL_WINDOW, "createTopLevelWindow")
48 : mozilla_StartupTimeline_Event(LINKER_INITIALIZED, "linkerInitialized")
49 : mozilla_StartupTimeline_Event(LIBRARIES_LOADED, "librariesLoaded")
50 : mozilla_StartupTimeline_Event(FIRST_LOAD_URI, "firstLoadURI")
51 : #else
52 :
53 : #ifndef mozilla_StartupTimeline
54 : #define mozilla_StartupTimeline
55 :
56 : #include "prtime.h"
57 : #include "nscore.h"
58 :
59 : #ifdef MOZ_LINKER
60 : extern "C" {
61 : /* This symbol is resolved by the custom linker. The function it resolves
62 : * to dumps some statistics about the linker at the key events recorded
63 : * by the startup timeline. */
64 : extern void __moz_linker_stats(const char *str)
65 : NS_VISIBILITY_DEFAULT __attribute__((weak));
66 : } /* extern "C" */
67 : #else
68 :
69 : #endif
70 :
71 : namespace mozilla {
72 :
73 : class StartupTimeline {
74 : public:
75 : enum Event {
76 : #define mozilla_StartupTimeline_Event(ev, z) ev,
77 : #include "StartupTimeline.h"
78 : #undef mozilla_StartupTimeline_Event
79 : MAX_EVENT_ID
80 : };
81 :
82 224 : static PRTime Get(Event ev) {
83 224 : return sStartupTimeline[ev];
84 : }
85 :
86 15 : static const char *Describe(Event ev) {
87 15 : return sStartupTimelineDesc[ev];
88 : }
89 :
90 89 : static void Record(Event ev, PRTime when = PR_Now()) {
91 89 : sStartupTimeline[ev] = when;
92 : #ifdef MOZ_LINKER
93 : if (__moz_linker_stats)
94 : __moz_linker_stats(Describe(ev));
95 : #endif
96 89 : }
97 :
98 0 : static void RecordOnce(Event ev) {
99 0 : if (!HasRecord(ev))
100 0 : Record(ev);
101 0 : }
102 :
103 0 : static bool HasRecord(Event ev) {
104 0 : return sStartupTimeline[ev];
105 : }
106 :
107 : private:
108 : static NS_EXTERNAL_VIS_(PRTime) sStartupTimeline[MAX_EVENT_ID];
109 : static NS_EXTERNAL_VIS_(const char *) sStartupTimelineDesc[MAX_EVENT_ID];
110 : };
111 :
112 : }
113 :
114 : #endif /* mozilla_StartupTimeline */
115 :
116 : #endif /* mozilla_StartupTimeline_Event */
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