status_t PlayerDriver::enqueueCommand(PlayerCommand* ec)
{
if (mPlayer == NULL) {
delete ec;
return NO_INIT;
}
OsclSemaphore *syncsemcopy = NULL;
// If the user didn't specify a completion callback, we
// are running in synchronous mode.
if (ec->hasCompletionHook()) {
ec->set(PlayerDriver::syncCompletion, this);
// make a copy of this semaphore for special handling of the PLAYER_QUIT command
syncsemcopy = mSyncSem;
}
// Add the command to the queue.
mQueueLock.lock();
mCommandQueue.push_front(ec);
// save command, since ec will be deleted by the standard completion function
int command = ec->command();
// AO needs to be scheduled only if this is the first cmd after queue was empty
if (mCommandQueue.size() == 1)
{
PendComplete(OSCL_REQUEST_ERR_NONE);
}
mQueueLock.unlock();
// If we are in synchronous mode, wait for completion.
if (syncsemcopy) {
syncsemcopy->Wait();
if (command == PlayerCommand::PLAYER_QUIT) {
syncsemcopy->Close();
delete syncsemcopy;
return 0;
}
return mSyncStatus;
}
return OK;
}
status_t AuthorDriver::enqueueCommand(author_command *ac, media_completion_f comp, void *cookie)
{
if (mAuthor == NULL) {
return NO_INIT;
}
// If the user didn't specify a completion callback, we
// are running in synchronous mode.
if (comp == NULL) {
ac->comp = AuthorDriver::syncCompletion;
ac->cookie = this;
} else {
ac->comp = comp;
ac->cookie = cookie;
}
// Add the command to the queue.
mQueueLock.lock();
mCommandQueue.push_front(ac);
// make a copy of this semaphore for special handling of the AUTHOR_QUIT command
OsclSemaphore *syncsemcopy = mSyncSem;
// make a copy of ac->which, since ac will be deleted by the standard completion function
author_command_type whichcopy = ac->which;
// Wake up the author thread so it can dequeue the command.
if (mCommandQueue.size() == 1) {
PendComplete(OSCL_REQUEST_ERR_NONE);
}
mQueueLock.unlock();
// If we are in synchronous mode, wait for completion.
if (syncsemcopy) {
syncsemcopy->Wait();
if (whichcopy == AUTHOR_QUIT) {
syncsemcopy->Close();
delete syncsemcopy;
return 0;
}
return mSyncStatus;
}
return OK;
}