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changed media kit internal messaging and notification support 

these files will be replaced soon


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1339 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2002-10-02 01:08:54 +00:00
parent f492510482
commit fd2581121b
2 changed files with 69 additions and 8 deletions
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66
src/servers/media/NotificationProcessor.cpp
View File

@ -1,13 +1,29 @@
#include <OS.h>
#include <Locker.h>
#include <Message.h>
#include <Messenger.h>
#include <MediaNode.h>
#include <Debug.h>
#include "NotificationManager.h"
#include "NotificationProcessor.h"
#include "ServerInterface.h"
#include "DataExchange.h"
#include "Queue.h"
#define NOTIFICATION_THREAD_PRIORITY 19
struct RegisteredHandler
{
BMessenger messenger;
media_node_id nodeid;
int32 mask;
team_id team;
};
NotificationProcessor::NotificationProcessor()
: fNotificationQueue(new Queue),
fNotificationThreadId(-1)
fNotificationThreadId(-1),
fLocker(new BLocker)
{
fNotificationThreadId = spawn_thread(NotificationProcessor::worker_thread, "notification broadcast", NOTIFICATION_THREAD_PRIORITY, this);
resume_thread(fNotificationThreadId);
@ -20,23 +36,53 @@ NotificationProcessor::~NotificationProcessor()
fNotificationQueue->Terminate();
wait_for_thread(fNotificationThreadId, &dummy);
delete fNotificationQueue;
delete fLocker;
}
void
NotificationProcessor::EnqueueMessage(BMessage *msg)
{
// queue a copy of the message to be processed later
fNotificationQueue->AddItem(new BMessage(*msg));
}
void
NotificationProcessor::RequestNotifications(BMessage *msg)
{
BMessenger messenger;
const media_node *node;
ssize_t nodesize;
team_id team;
int32 mask;
msg->FindMessenger(NOTIFICATION_PARAM_MESSENGER, &messenger);
msg->FindInt32(NOTIFICATION_PARAM_TEAM, &team);
msg->FindInt32(NOTIFICATION_PARAM_MASK, &mask);
msg->FindData("node", B_RAW_TYPE, reinterpret_cast<const void **>(&node), &nodesize);
ASSERT(nodesize == sizeof(node));
}
void
NotificationProcessor::CancelNotifications(BMessage *msg)
{
BMessenger messenger;
const media_node *node;
ssize_t nodesize;
team_id team;
int32 mask;
msg->FindMessenger(NOTIFICATION_PARAM_MESSENGER, &messenger);
msg->FindInt32(NOTIFICATION_PARAM_TEAM, &team);
msg->FindInt32(NOTIFICATION_PARAM_MASK, &mask);
msg->FindData("node", B_RAW_TYPE, reinterpret_cast<const void **>(&node), &nodesize);
ASSERT(nodesize == sizeof(node));
}
void
NotificationProcessor::SendNotifications(BMessage *msg)
{
// queue a copy of the message to be processed later
fNotificationQueue->AddItem(new BMessage(*msg));
}
void
@ -54,7 +100,19 @@ NotificationProcessor::WorkerThread()
{
BMessage *msg;
while (NULL != (msg = static_cast<BMessage *>(fNotificationQueue->RemoveItem()))) {
BroadcastMessages(msg);
switch (msg->what) {
case MEDIA_SERVER_REQUEST_NOTIFICATIONS:
RequestNotifications(msg);
break;
case MEDIA_SERVER_CANCEL_NOTIFICATIONS:
CancelNotifications(msg);
break;
case MEDIA_SERVER_SEND_NOTIFICATIONS:
SendNotifications(msg);
break;
default:
debugger("bad notification message\n");
}
delete msg;
}
}

11
src/servers/media/NotificationProcessor.h
View File

@ -6,14 +6,16 @@ class NotificationProcessor
public:
NotificationProcessor();
~NotificationProcessor();
void RequestNotifications(BMessage *msg);
void CancelNotifications(BMessage *msg);
void SendNotifications(BMessage *msg);
void EnqueueMessage(BMessage *msg);
void CleanupTeam(team_id team);
private:
void RequestNotifications(BMessage *msg);
void CancelNotifications(BMessage *msg);
void SendNotifications(BMessage *msg);
void BroadcastMessages(BMessage *msg);
void WorkerThread();
static int32 worker_thread(void *arg);
@ -21,4 +23,5 @@ private:
private:
Queue * fNotificationQueue;
thread_id fNotificationThreadId;
BLocker * fLocker;
};