Title: [218776] trunk/Source/WTF
- Revision
- 218776
- Author
- [email protected]
- Date
- 2017-06-23 17:03:38 -0700 (Fri, 23 Jun 2017)
Log Message
Add notifyutil registrations for going in and out of simulated low memory state
https://bugs.webkit.org/show_bug.cgi?id=173797
Reviewed by Andreas Kling.
Add
notifyutil -p org.WebKit.lowMemory.begin
notifyutil -p org.WebKit.lowMemory.end
for debugging.
* wtf/cocoa/MemoryPressureHandlerCocoa.mm:
(WTF::MemoryPressureHandler::install):
Modified Paths
Diff
Modified: trunk/Source/WTF/ChangeLog (218775 => 218776)
--- trunk/Source/WTF/ChangeLog 2017-06-23 23:24:11 UTC (rev 218775)
+++ trunk/Source/WTF/ChangeLog 2017-06-24 00:03:38 UTC (rev 218776)
@@ -1,3 +1,20 @@
+2017-06-23 Antti Koivisto <[email protected]>
+
+ Add notifyutil registrations for going in and out of simulated low memory state
+ https://bugs.webkit.org/show_bug.cgi?id=173797
+
+ Reviewed by Andreas Kling.
+
+ Add
+
+ notifyutil -p org.WebKit.lowMemory.begin
+ notifyutil -p org.WebKit.lowMemory.end
+
+ for debugging.
+
+ * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
+ (WTF::MemoryPressureHandler::install):
+
2017-06-23 Konstantin Tokarev <[email protected]>
Remove more unused headers from WTF
Modified: trunk/Source/WTF/wtf/cocoa/MemoryPressureHandlerCocoa.mm (218775 => 218776)
--- trunk/Source/WTF/wtf/cocoa/MemoryPressureHandlerCocoa.mm 2017-06-23 23:24:11 UTC (rev 218775)
+++ trunk/Source/WTF/wtf/cocoa/MemoryPressureHandlerCocoa.mm 2017-06-24 00:03:38 UTC (rev 218776)
@@ -49,7 +49,7 @@
static dispatch_source_t _cache_event_source = 0;
static dispatch_source_t _timer_event_source = 0;
-static int _notifyToken;
+static int _notifyTokens[3];
// Disable memory event reception for a minimum of s_minimumHoldOffTime
// seconds after receiving an event. Don't let events fire any sooner than
@@ -98,7 +98,7 @@
});
// Allow simulation of memory pressure with "notifyutil -p org.WebKit.lowMemory"
- notify_register_dispatch("org.WebKit.lowMemory", &_notifyToken, dispatch_get_main_queue(), ^(int) {
+ notify_register_dispatch("org.WebKit.lowMemory", &_notifyTokens[0], dispatch_get_main_queue(), ^(int) {
#if ENABLE(FMW_FOOTPRINT_COMPARISON)
auto footprintBefore = pagesPerVMTag();
#endif
@@ -117,6 +117,13 @@
});
});
+ notify_register_dispatch("org.WebKit.lowMemory.begin", &_notifyTokens[1], dispatch_get_main_queue(), ^(int) {
+ beginSimulatedMemoryPressure();
+ });
+ notify_register_dispatch("org.WebKit.lowMemory.end", &_notifyTokens[2], dispatch_get_main_queue(), ^(int) {
+ endSimulatedMemoryPressure();
+ });
+
m_installed = true;
}
@@ -140,8 +147,9 @@
});
m_installed = false;
-
- notify_cancel(_notifyToken);
+
+ for (auto& token : _notifyTokens)
+ notify_cancel(token);
}
void MemoryPressureHandler::holdOff(unsigned seconds)
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