haiku/src/kits/media/TimeSourceObject.cpp

99 lines
2.1 KiB
C++

/*
* Copyright 2002 Marcus Overhagen. All Rights Reserved.
* This file may be used under the terms of the MIT License.
*/
/*! The object returned by BMediaRoster's
MakeTimeSourceFor(const media_node& forNode);
*/
#include "TimeSourceObject.h"
#include <stdio.h>
#include <string.h>
#include <MediaRoster.h>
#include <OS.h>
#include <MediaMisc.h>
#include <MediaDebug.h>
#include "TimeSourceObjectManager.h"
TimeSourceObject::TimeSourceObject(const media_node& node)
:
BMediaNode("some timesource object", node.node, node.kind),
BTimeSource(node.node)
{
TRACE("TimeSourceObject::TimeSourceObject enter, id = %"
B_PRId32 "\n", node.node);
if (fControlPort > 0)
delete_port(fControlPort);
// We use the control port of the real time source object.
// this way, all messages are send to the real time source,
// and this shadow object won't receive any.
fControlPort = node.port;
ASSERT(fNodeID == node.node);
ASSERT(fKinds == node.kind);
if (node.node == NODE_SYSTEM_TIMESOURCE_ID) {
strcpy(fName, "System clock");
fIsRealtime = true;
} else {
live_node_info liveNodeInfo;
if (BMediaRoster::Roster()->GetLiveNodeInfo(node, &liveNodeInfo)
== B_OK)
strlcpy(fName, liveNodeInfo.name, B_MEDIA_NAME_LENGTH);
else {
snprintf(fName, B_MEDIA_NAME_LENGTH, "timesource %" B_PRId32,
node.node);
}
}
AddNodeKind(NODE_KIND_SHADOW_TIMESOURCE);
AddNodeKind(NODE_KIND_NO_REFCOUNTING);
TRACE("TimeSourceObject::TimeSourceObject leave, node id %" B_PRId32 "\n",
fNodeID);
}
status_t
TimeSourceObject::TimeSourceOp(const time_source_op_info& op, void* _reserved)
{
// we don't get anything here
return B_OK;
}
BMediaAddOn*
TimeSourceObject::AddOn(int32* _id) const
{
if (_id != NULL)
*_id = 0;
return NULL;
}
status_t
TimeSourceObject::DeleteHook(BMediaNode* node)
{
// if (fIsRealtime) {
// ERROR("TimeSourceObject::DeleteHook: system time source clone delete hook called\n");
// return B_ERROR;
// }
PRINT(1, "TimeSourceObject::DeleteHook enter\n");
gTimeSourceObjectManager->ObjectDeleted(this);
status_t status = BTimeSource::DeleteHook(node);
PRINT(1, "TimeSourceObject::DeleteHook leave\n");
return status;
}