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Returns new memory from transferable

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git-svn-id: svn://10.0.0.236/trunk@40324 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
rods%netscape.com
1999-07-20 21:04:14 +00:00
parent 0a22289b62
commit aec25d44cb
1 changed files with 12 additions and 3 deletions
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15
mozilla/widget/src/xpwidgets/nsTransferable.cpp
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@@ -36,6 +36,7 @@ NS_IMPL_RELEASE(nsTransferable)
// million bytes
#define LARGE_DATASET_SIZE 1000000
//#define LARGE_DATASET_SIZE 10
struct DataStruct {
DataStruct (const nsString & aString)
@@ -99,9 +100,11 @@ void DataStruct::SetData ( char* aData, PRUint32 aDataLen )
//-------------------------------------------------------------------------
void DataStruct::GetData ( char** aData, PRUint32 *aDataLen )
{
// check here to see if the data is cached on disk
if (nsnull == mData && nsnull != mCacheFileName) {
// if so, read it in and pass it back
// ReadCache creates memory and copies the data into it.
if (NS_OK == ReadCache(aData, aDataLen)) {
printf("->>>>>>>>>>>>>> Read Clipboard from cache file\n");
return;
@@ -109,9 +112,15 @@ void DataStruct::GetData ( char** aData, PRUint32 *aDataLen )
} else {
printf("->>>>>>>>>>>>>> Read Clipboard from memory\n");
}
// this either passes back the right about
// or zeros it out
*aData = mData;
// OK, we create memory and copy the contents into it.
char * data = new char[mDataLen];
if (nsnull != mData && mDataLen > 0) {
memcpy(data, mData, mDataLen);
*aData = data;
} else {
// zeros it out
*aData = nsnull;
}
*aDataLen = mDataLen;
}