gecko/toolkit/components/startup/StartupTimeline.h

87 lines
2.5 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifdef mozilla_StartupTimeline_Event
mozilla_StartupTimeline_Event(PROCESS_CREATION, "process")
mozilla_StartupTimeline_Event(START, "start")
mozilla_StartupTimeline_Event(MAIN, "main")
// Record the beginning and end of startup crash detection to compare with crash stats to know whether
// detection should be improved to start or end sooner.
mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_BEGIN, "startupCrashDetectionBegin")
mozilla_StartupTimeline_Event(STARTUP_CRASH_DETECTION_END, "startupCrashDetectionEnd")
mozilla_StartupTimeline_Event(FIRST_PAINT, "firstPaint")
mozilla_StartupTimeline_Event(SESSION_RESTORED, "sessionRestored")
mozilla_StartupTimeline_Event(CREATE_TOP_LEVEL_WINDOW, "createTopLevelWindow")
mozilla_StartupTimeline_Event(LINKER_INITIALIZED, "linkerInitialized")
mozilla_StartupTimeline_Event(LIBRARIES_LOADED, "librariesLoaded")
mozilla_StartupTimeline_Event(FIRST_LOAD_URI, "firstLoadURI")
#else
#ifndef mozilla_StartupTimeline
#define mozilla_StartupTimeline
#include "prtime.h"
#include "nscore.h"
#ifdef MOZ_LINKER
extern "C" {
/* This symbol is resolved by the custom linker. The function it resolves
* to dumps some statistics about the linker at the key events recorded
* by the startup timeline. */
extern void __moz_linker_stats(const char *str)
NS_VISIBILITY_DEFAULT __attribute__((weak));
} /* extern "C" */
#else
#endif
namespace mozilla {
void RecordShutdownEndTimeStamp();
class StartupTimeline {
public:
enum Event {
#define mozilla_StartupTimeline_Event(ev, z) ev,
#include "StartupTimeline.h"
#undef mozilla_StartupTimeline_Event
MAX_EVENT_ID
};
static PRTime Get(Event ev) {
return sStartupTimeline[ev];
}
static const char *Describe(Event ev) {
return sStartupTimelineDesc[ev];
}
static void Record(Event ev, PRTime when = PR_Now()) {
sStartupTimeline[ev] = when;
#ifdef MOZ_LINKER
if (__moz_linker_stats)
__moz_linker_stats(Describe(ev));
#endif
}
static void RecordOnce(Event ev) {
if (!HasRecord(ev))
Record(ev);
}
static bool HasRecord(Event ev) {
return sStartupTimeline[ev];
}
private:
static NS_EXTERNAL_VIS_(PRTime) sStartupTimeline[MAX_EVENT_ID];
static NS_EXTERNAL_VIS_(const char *) sStartupTimelineDesc[MAX_EVENT_ID];
};
}
#endif /* mozilla_StartupTimeline */
#endif /* mozilla_StartupTimeline_Event */