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BDirectWindow::DirectDeamonFunc() now exits in case it couldn't acquire or

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release the direct buffer handshake semaphores.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15501 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2005-12-11 20:16:42 +00:00
parent 8a1a2b3aa9
commit 0f4fb801b0
1 changed files with 19 additions and 11 deletions
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30
src/kits/game/DirectWindow.cpp
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@ -293,7 +293,6 @@ BDirectWindow::SetFullScreen(bool enable)
full_screen_enable = enable;
#else
fLink->StartMessage(AS_DIRECT_WINDOW_SET_FULLSCREEN);
fLink->Attach<int32>(server_token); // useless ?
fLink->Attach<bool>(enable);
status_t status = B_ERROR;
@ -315,6 +314,7 @@ BDirectWindow::IsFullScreen() const
}
/*static*/
bool
BDirectWindow::SupportsWindowMode(screen_id id)
{
@ -341,7 +341,9 @@ BDirectWindow::SupportsWindowMode(screen_id id)
}
// Private methods
// #pragma mark - Private methods
int32
BDirectWindow::DirectDeamonFunc(void *arg)
{
@ -350,28 +352,34 @@ BDirectWindow::DirectDeamonFunc(void *arg)
while (!object->deamon_killer) {
// This sem is released by the app_server when our
// clipping region changes, or when our window is moved,
// resized, etc. etc.
while (acquire_sem(object->disable_sem) == B_INTERRUPTED)
;
// resized, etc. etc.
status_t status;
do {
status = acquire_sem(object->disable_sem);
} while (status == B_INTERRUPTED);
if (status < B_OK)
return -1;
if (object->LockDirect()) {
if ((object->buffer_desc->buffer_state & B_DIRECT_MODE_MASK) == B_DIRECT_START)
object->connection_enable = true;
object->in_direct_connect = true;
object->DirectConnected(object->buffer_desc);
object->in_direct_connect = false;
if ((object->buffer_desc->buffer_state & B_DIRECT_MODE_MASK) == B_DIRECT_STOP)
object->connection_enable = false;
object->UnlockDirect();
}
// The app_server then waits (with a timeout) on this sem.
// If we aren't quick enough to release this sem, our app
// will be terminated by the app_server
release_sem(object->disable_sem_ack);
if (release_sem(object->disable_sem_ack) != B_OK)
return -1;
}
return 0;