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Bug 396649: Content viewers not evicted when going back. r+sr+a=bzbarsky

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ajschult@verizon.net 2007-09-27 19:56:08 -07:00
parent 7494b93ed4
commit 2bf5e6e4ae
1 changed files with 8 additions and 2 deletions
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10
docshell/shistory/src/nsSHistory.cpp
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@ -766,7 +766,13 @@ nsSHistory::EvictWindowContentViewers(PRInt32 aFromIndex, PRInt32 aToIndex)
{
// To enforce the per SHistory object limit on cached content viewers, we
// need to release all of the content viewers that are no longer in the
// "window" that now ends/begins at aToIndex.
// "window" that now ends/begins at aToIndex. Existing content viewers
// should be in the window from
// aFromIndex - gHistoryMaxViewers to aFromIndex + gHistoryMaxViewers
//
// We make the assumption that entries outside this range have no viewers so
// that we don't have to walk the whole entire session history checking for
// content viewers.
// This can happen on the first load of a page in a particular window
if (aFromIndex < 0 || aToIndex < 0) {
@ -787,7 +793,7 @@ nsSHistory::EvictWindowContentViewers(PRInt32 aFromIndex, PRInt32 aToIndex)
if (startIndex >= mLength) {
return;
}
endIndex = PR_MIN(mLength, aFromIndex + gHistoryMaxViewers);
endIndex = PR_MIN(mLength, aFromIndex + gHistoryMaxViewers + 1);
}
EvictContentViewersInRange(startIndex, endIndex);