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Throw instead of crashing if used before init(). Bug 290907, r=biesi,

Browse Source 
sr=darin, a=asa


git-svn-id: svn://10.0.0.236/trunk@172490 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bzbarsky%mit.edu
2005-04-20 15:37:38 +00:00
parent 99ebf6581c
commit ff7428a06d
1 changed files with 12 additions and 0 deletions
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12
mozilla/xpcom/io/nsStorageStream.cpp
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@@ -120,6 +120,8 @@ nsStorageStream::GetOutputStream(PRInt32 aStartingOffset,
nsIOutputStream * *aOutputStream)
{
NS_ENSURE_ARG(aOutputStream);
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
if (mWriteInProgress)
return NS_ERROR_NOT_AVAILABLE;
@@ -145,6 +147,8 @@ nsStorageStream::GetOutputStream(PRInt32 aStartingOffset,
NS_IMETHODIMP
nsStorageStream::Close()
{
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
mWriteInProgress = PR_FALSE;
PRInt32 segmentOffset = SegOffset(mLogicalLength);
@@ -173,6 +177,8 @@ nsStorageStream::Flush()
NS_IMETHODIMP
nsStorageStream::Write(const char *aBuffer, PRUint32 aCount, PRUint32 *aNumWritten)
{
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
const char* readCursor;
PRUint32 count, availableInSegment, remaining;
nsresult rv = NS_OK;
@@ -256,6 +262,8 @@ nsStorageStream::GetLength(PRUint32 *aLength)
NS_IMETHODIMP
nsStorageStream::SetLength(PRUint32 aLength)
{
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
if (mWriteInProgress)
return NS_ERROR_NOT_AVAILABLE;
@@ -288,6 +296,8 @@ nsStorageStream::GetWriteInProgress(PRBool *aWriteInProgress)
NS_METHOD
nsStorageStream::Seek(PRInt32 aPosition)
{
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
// An argument of -1 means "seek to end of stream"
if (aPosition == -1)
aPosition = mLogicalLength;
@@ -378,6 +388,8 @@ NS_IMPL_THREADSAFE_ISUPPORTS2(nsStorageInputStream,
NS_IMETHODIMP
nsStorageStream::NewInputStream(PRInt32 aStartingOffset, nsIInputStream* *aInputStream)
{
NS_ENSURE_TRUE(mSegmentedBuffer, NS_ERROR_NOT_INITIALIZED);
nsStorageInputStream *inputStream = new nsStorageInputStream(this, mSegmentSize);
if (!inputStream)
return NS_ERROR_OUT_OF_MEMORY;