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fixes bug 329260 "Disk cache keeps emptying itself" r=biesi sr=bzbarsky

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git-svn-id: svn://10.0.0.236/trunk@192099 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
darin%meer.net
2006-03-09 20:02:54 +00:00
parent 1e451feed6
commit 8abe3aabdb
8 changed files with 84 additions and 19 deletions
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11
mozilla/netwerk/cache/src/nsDiskCacheBlockFile.cpp vendored
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@@ -218,24 +218,25 @@ nsDiskCacheBlockFile::WriteBlocks( void * buffer,
PRInt32 numBlocks)
{
// presume buffer != nsnull
if (!mFD) return NS_ERROR_NOT_AVAILABLE;
NS_ENSURE_TRUE(mFD, NS_ERROR_NOT_AVAILABLE);
nsresult rv = VerifyAllocation(startBlock, numBlocks);
if (NS_FAILED(rv)) return rv;
NS_ENSURE_SUCCESS(rv, rv);
// seek to block position
PRInt32 blockPos = kBitMapBytes + startBlock * mBlockSize;
PRInt32 filePos = PR_Seek(mFD, blockPos, PR_SEEK_SET);
if (filePos != blockPos) return NS_ERROR_UNEXPECTED;
NS_ENSURE_STATE(filePos == blockPos);
// write the blocks
PRInt32 bytesToWrite = numBlocks * mBlockSize;
PRInt32 bytesWritten = PR_Write(mFD, buffer, bytesToWrite);
if (bytesWritten < bytesToWrite) return NS_ERROR_UNEXPECTED;
NS_ENSURE_STATE(bytesWritten == bytesToWrite);
// write the bit map and flush the file
// XXX except we would take a severe performance hit
// XXX rv = FlushBitMap();
return rv;
return NS_OK;
}