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commit 63db080ae5cb
Author: Marco Bonardo <mbonardo@mozilla.com>
Date: Thu Dec 7 15:28:41 2017 +0100
Bug 1415598. r=gijs, a=jcristau
--HG--
extra : source : 94f1fb1043a81e619d7b73d48a86d66d1cf4eebc
---
toolkit/components/places/History.cpp | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git toolkit/components/places/History.cpp toolkit/components/places/History.cpp
index 94755d3bdde5..b3618c065601 100644
--- toolkit/components/places/History.cpp
+++ toolkit/components/places/History.cpp
@@ -1955,6 +1955,7 @@ History::InitMemoryReporter()
NS_IMETHODIMP
History::NotifyVisited(nsIURI* aURI)
{
+ MOZ_ASSERT(NS_IsMainThread());
NS_ENSURE_ARG(aURI);
nsAutoScriptBlocker scriptBlocker;
@@ -2565,6 +2566,7 @@ NS_IMETHODIMP
History::RegisterVisitedCallback(nsIURI* aURI,
Link* aLink)
{
+ MOZ_ASSERT(NS_IsMainThread());
NS_ASSERTION(aURI, "Must pass a non-null URI!");
if (XRE_IsContentProcess()) {
NS_PRECONDITION(aLink, "Must pass a non-null Link!");
@@ -2594,7 +2596,16 @@ History::RegisterVisitedCallback(nsIURI* aURI,
if (NS_FAILED(rv) || !aLink) {
// Remove our array from the hashtable so we don't keep it around.
MOZ_ASSERT(key == mObservers.GetEntry(aURI), "The URIs hash mutated!");
- mObservers.RemoveEntry(key);
+ // In some case calling RemoveEntry on the key obtained by PutEntry
+ // crashes for currently unknown reasons. Our suspect is that something
+ // between PutEntry and this call causes a nested loop that either removes
+ // the entry or reallocs the hash.
+ // TODO (Bug 1412647): we must figure the root cause for these issues and
+ // remove this stop-gap crash fix.
+ key = mObservers.GetEntry(aURI);
+ if (key) {
+ mObservers.RemoveEntry(key);
+ }
return rv;
}
}
@@ -2626,6 +2637,7 @@ NS_IMETHODIMP
History::UnregisterVisitedCallback(nsIURI* aURI,
Link* aLink)
{
+ MOZ_ASSERT(NS_IsMainThread());
// TODO: aURI is sometimes null - see bug 548685
NS_ASSERTION(aURI, "Must pass a non-null URI!");
NS_ASSERTION(aLink, "Must pass a non-null Link object!");
|