AAFRESULT ImplAAFSegment::FindSubSegment(aafPosition_t offset,
aafPosition_t *sequPosPtr,
ImplAAFSegment **subseg,
aafBool *found)
{
aafLength_t segLen;
aafPosition_t begPos, endPos, zero;
XPROTECT( )
{
CHECK(GetLength(&segLen));
begPos = 0;
zero = 0;
endPos = begPos;
endPos += segLen;
if ((begPos <= offset) &&
(offset < endPos))
{
*found = kAAFTrue;
*subseg = this;
// We are returning a reference to this object so bump the ref count
AcquireReference();
*sequPosPtr = 0;
}
else if ((begPos == endPos) && (offset == zero)) //JeffB: Handle zero-length sourceClips
{
*found = kAAFTrue;
*subseg = this;
// We are returning a reference to this object so bump the ref count
AcquireReference();
*sequPosPtr = 0;
}
else
{
*found = kAAFFalse;
*subseg = NULL;
*sequPosPtr = 0;
}
} /* XPROTECT */
XEXCEPT
{
}
XEND;
return(AAFRESULT_SUCCESS);
}
Int32 CursorWindow::GetNumRows()
{
AcquireReference();
//try {
Int32 num = NativeGetNumRows();
//} finally {
ReleaseReference();
//}
return num;
}
Boolean CursorWindow::AllocRow()
{
AcquireReference();
//try {
Boolean result = NativeAllocRow();
//} finally {
ReleaseReference();
//}
return result;
}
ECode CursorWindow::FreeLastRow()
{
AcquireReference();
//try {
NativeFreeLastRow();
//} finally {
ReleaseReference();
//}
return NOERROR;
}
Boolean CursorWindow::SetNumColumns(
/* [in] */ Int32 columnNum)
{
AcquireReference();
//try {
Boolean result = NativeSetNumColumns(columnNum);
//} finally {
ReleaseReference();
//}
return result;
}
ECode CursorWindow::Clear()
{
AcquireReference();
//try {
mStartPos = 0;
NativeClear();
//} finally {
ReleaseReference();
//}
return NOERROR;
}
Boolean CursorWindow::PutNull(
/* [in] */ Int32 row,
/* [in] */ Int32 col)
{
AcquireReference();
//try {
Boolean result = NativePutNull(row - mStartPos, col);
//} finally {
ReleaseReference();
//}
return result;
}
Boolean CursorWindow::IsNull(
/* [in] */ Int32 row,
/* [in] */ Int32 col)
{
AcquireReference();
//try {
Boolean isNull = NativeIsNull(row - mStartPos, col);
//} finally {
ReleaseReference();
//}
return isNull;
}
status_t
CreateThreadEvent::Fire()
{
bool wasPending = atomic_get_and_set(&fPendingDPC, 1) != 0;
if (wasPending)
return B_BUSY;
AcquireReference();
DPCQueue::DefaultQueue(B_NORMAL_PRIORITY)->Add(this);
return B_OK;
}
ECode CursorWindow::GetBlob(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ ArrayOf<Byte>** blob)
{
AcquireReference();
//try {
ECode ec = NativeGetBlob(row - mStartPos, col, blob);
//} finally {
ReleaseReference();
//}
return ec;
}
Boolean CursorWindow::PutBlob(
/* [in] */ const ArrayOf<Byte> & value,
/* [in] */ Int32 row,
/* [in] */ Int32 col)
{
AcquireReference();
//try {
Boolean result = NativePutBlob(value, row - mStartPos, col);
//} finally {
ReleaseReference();
//}
return result;
}
ECode CursorWindow::IsString(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ Boolean* isString)
{
AcquireReference();
//try {
ECode ec = NativeIsString(row - mStartPos, col, isString);
//} finally {
ReleaseReference();
//}
return ec;
}
ECode CursorWindow::GetDouble(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ Double* value)
{
AcquireReference();
//try {
ECode ec = NativeGetDouble(row - mStartPos, col, value);
//} finally {
ReleaseReference();
//}
return ec;
}
ECode CursorWindow::GetString(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ String* str)
{
AcquireReference();
//try {
ECode ec = NativeGetString(row - mStartPos, col, str);
//} finally {
ReleaseReference();
//}
return ec;
}
// ReadVNode
status_t
VirtualVolume::ReadVNode(vnode_id vnid, char reenter, Node** node)
{
if (vnid != GetRootID())
return B_BAD_VALUE;
AutoLocker<Locker> _(fLock);
fRootNode->SetKnownToVFS(true);
*node = fRootNode;
// add a volume reference for the node
AcquireReference();
return B_OK;
}
ECode CursorWindow::GetFloat(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ Float* value)
{
AcquireReference();
//try {
Double dValue;
ECode ec = NativeGetDouble(row - mStartPos, col, &dValue);
*value = dValue;
//} finally {
ReleaseReference();
//}
return ec;
}
ECode CursorWindow::GetInt32(
/* [in] */ Int32 row,
/* [in] */ Int32 col,
/* [out] */ Int32* value)
{
AcquireReference();
//try {
Int64 i64Value;
ECode ec = NativeGetInt64(row - mStartPos, col, &i64Value);
*value = (Int32)i64Value;
//} finally {
ReleaseReference();
//}
return ec;
}
status_t
SignalEvent::Fire()
{
bool wasPending = atomic_get_and_set(&fPendingDPC, 1) != 0;
if (wasPending)
return B_BUSY;
if (fSignal->MarkUsed()) {
atomic_set(&fPendingDPC, 0);
return B_BUSY;
}
AcquireReference();
DPCQueue::DefaultQueue(B_NORMAL_PRIORITY)->Add(this);
return B_OK;
}
// AddChildVolume
status_t
VirtualVolume::AddChildVolume(Volume* volume)
{
if (!volume)
return B_BAD_VALUE;
// don't add anything, if we are already unmounting
AutoLocker<Locker> locker(fLock);
if (fUnmounting)
return B_BAD_VALUE;
// get and check the node name
char name[B_FILE_NAME_LENGTH];
int32 nameLen = strlen(volume->GetName());
if (nameLen == 0 || nameLen >= B_FILE_NAME_LENGTH)
return B_BAD_VALUE;
strcpy(name, volume->GetName());
// add the volume's root node
status_t error = fRootNode->AddEntry(name, volume->GetRootNode());
if (error != B_OK)
return error;
// set the volume's parent volume
volume->SetParentVolume(this);
AcquireReference();
// send out a notification
vnode_id dirID = fRootNode->GetID();
vnode_id nodeID = volume->GetRootID();
locker.Unlock();
NotifyListener(B_ENTRY_CREATED, fVolumeManager->GetID(), dirID, 0, nodeID,
name);
return B_OK;
}
