Title: [210699] branches/safari-603-branch/Source/WebKit2
Revision
210699
Author
matthew_han...@apple.com
Date
2017-01-12 22:09:59 -0800 (Thu, 12 Jan 2017)

Log Message

Merge r210596. rdar://problem/29757269

Modified Paths

Diff

Modified: branches/safari-603-branch/Source/WebKit2/ChangeLog (210698 => 210699)


--- branches/safari-603-branch/Source/WebKit2/ChangeLog	2017-01-13 06:09:56 UTC (rev 210698)
+++ branches/safari-603-branch/Source/WebKit2/ChangeLog	2017-01-13 06:09:59 UTC (rev 210699)
@@ -1,5 +1,24 @@
 2017-01-12  Matthew Hanson  <matthew_han...@apple.com>
 
+        Merge r210596. rdar://problem/29757269
+
+    2017-01-11  Anders Carlsson  <ander...@apple.com>
+
+            REGRESSION: Crash in com.apple.WebKit: IPC::Connection::sendMessage(std::__1::unique_ptr<IPC::MachMessage, std::__1::default_delete<IPC::MachMessage> >) + 27
+            https://bugs.webkit.org/show_bug.cgi?id=165854
+            rdar://problem/29757269
+
+            Reviewed by Tim Horton.
+
+            * Platform/IPC/mac/ConnectionMac.mm:
+            (IPC::Connection::sendMessage):
+            Add assertion.
+
+            (IPC::Connection::initializeSendSource):
+            Turns out the event handler can be called spuriously, so guard against that.
+
+2017-01-12  Matthew Hanson  <matthew_han...@apple.com>
+
         Merge r210525. rdar://problem/29931470
 
     2017-01-09  Enrica Casucci  <enr...@apple.com>

Modified: branches/safari-603-branch/Source/WebKit2/Platform/IPC/mac/ConnectionMac.mm (210698 => 210699)


--- branches/safari-603-branch/Source/WebKit2/Platform/IPC/mac/ConnectionMac.mm	2017-01-13 06:09:56 UTC (rev 210698)
+++ branches/safari-603-branch/Source/WebKit2/Platform/IPC/mac/ConnectionMac.mm	2017-01-13 06:09:59 UTC (rev 210699)
@@ -263,6 +263,7 @@
 
 bool Connection::sendMessage(std::unique_ptr<MachMessage> message)
 {
+    ASSERT(message);
     ASSERT(!m_pendingOutgoingMachMessage);
 
     // Send the message.
@@ -399,7 +400,9 @@
         }
 
         if (data & DISPATCH_MACH_SEND_POSSIBLE) {
-            connection->sendMessage(WTFMove(connection->m_pendingOutgoingMachMessage));
+            // FIXME: Figure out why we get spurious DISPATCH_MACH_SEND_POSSIBLE events.
+            if (connection->m_pendingOutgoingMachMessage)
+                connection->sendMessage(WTFMove(connection->m_pendingOutgoingMachMessage));
             connection->sendOutgoingMessages();
             return;
         }
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