Catch a app_server crash in the debug server. Let the registrar restart the app_server and notify all apps.

Turns out the whole "active app" mechanism in the registrar wasn't used at all; the
Switcher now works as expected.
* Renamed TRoster::ActivateApp() to UpdateActiveApp(), as the app is already activated
at that point (the registrar only keeps track of it).
* BWindow::DispatchMessage() now calls the new BRoster::Private::UpdateActiveApp()
method when it receives a B_WINDOW_ACTIVATED message.
* Added BRoster::_UpdateActiveApp() which calls the new B_REG_UPDATE_ACTIVE_APP.
* Removed now unused B_REG_ACTIVATE_APP.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19857 a95241bf-73f2-0310-859d-f6bbb57e9c96

BRoster::Launch() eventually launches the application in question
in several steps:
1. early pre-registration with the registrar ("I wanna launch the
app, make sure noone interferes.")
2. load the app image
3. finish pre-registration with the registrar ("I have launched
the app, here is its team ID.")
4. start app main thread
5. send "on launch" messages to the app (argv, refs, others)

If the app is already running or being launched, 1. fails with a
conclusive error code and returns the team ID and the pre-registration
token of the app. Steps 2 - 4 are skipped and only the messages are
delivered using the team ID returned by 1.

This change fixes a race condition: The failed early pre-registration
request obviously cannot return the team ID, if the other thread
launching the app has not finished step 3 yet. Thus the argv/refs
message would not get delivered and Launch() would not return the
correct team ID.

Now we wait for the pre-registration to be finished in this case, using
the former _IsAppPreRegistered() mechanism, which already provided
such a waiting feature for one request. It has been extended to
accomodate an arbitrary number of waiting requests and renamed to
_IsAppRegistered().

This fixed bug #763.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18728 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented AS_DIRECT_WINDOW_SET_FULLSCREEN so that it sets kWindowScreenFeel
when enabled, and B_NORMAL_WINDOW_FEEL when disabled. IOW when enabled, no
other windows can interfere.
* Therefore, it's no longer necessary to have the screen_blanker window
use kWindowScreenFeel - it will set its window to full screen as long
as the blanker runs.
* Added a AS_APP_CRASHED notification in the app_server that will remove
all kWindowScreenFeels from the windows of the crashed app.
* This is now used by the debugger to ensure that the debugger alert will
be visible.
* Factored out a DesktopLink class out of the BRoster::_ActivateApp()
method. This class is now also used in the new BRoster::_ApplicationCrashed()
method as used in the debug_server (via BRoster::Private).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17785 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16430 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a boolean "synchronous" parameter to BRoster::Shutdown(). Used in the
Deskbar to initiate the shutdown process asynchronously. Couldn't test it,
because opening the Be menu doesn't work:
***PANIC: BW: Can't find view with ID: 19 !***



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13722 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a "confirm" parameter to BRoster::Shutdown() which causes the registrar
to ask the user to confirm shutting down the system.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13563 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added BRoster::ShutDown().
* Adjusted the shutdown command to use BRoster::ShutDown(). Removed
the alert.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13416 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replaced _init_roster_() _delete_roster_() by static functions in BRoster::Private.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11033 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleaned up BRoster's friends mess. All access to private BRoster functionality is now done through the newly added BRoster::Private class, which is BRoster's only friend (poor BRoster ;-).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2664 a95241bf-73f2-0310-859d-f6bbb57e9c96

Catch a app_server crash in the debug server. Let the registrar restart the app_server and notify all apps.

Turns out the whole "active app" mechanism in the registrar wasn't used at all; the
Switcher now works as expected.
* Renamed TRoster::ActivateApp() to UpdateActiveApp(), as the app is already activated
at that point (the registrar only keeps track of it).
* BWindow::DispatchMessage() now calls the new BRoster::Private::UpdateActiveApp()
method when it receives a B_WINDOW_ACTIVATED message.
* Added BRoster::_UpdateActiveApp() which calls the new B_REG_UPDATE_ACTIVE_APP.
* Removed now unused B_REG_ACTIVATE_APP.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19857 a95241bf-73f2-0310-859d-f6bbb57e9c96

BRoster::Launch() eventually launches the application in question
in several steps:
1. early pre-registration with the registrar ("I wanna launch the
app, make sure noone interferes.")
2. load the app image
3. finish pre-registration with the registrar ("I have launched
the app, here is its team ID.")
4. start app main thread
5. send "on launch" messages to the app (argv, refs, others)

If the app is already running or being launched, 1. fails with a
conclusive error code and returns the team ID and the pre-registration
token of the app. Steps 2 - 4 are skipped and only the messages are
delivered using the team ID returned by 1.

This change fixes a race condition: The failed early pre-registration
request obviously cannot return the team ID, if the other thread
launching the app has not finished step 3 yet. Thus the argv/refs
message would not get delivered and Launch() would not return the
correct team ID.

Now we wait for the pre-registration to be finished in this case, using
the former _IsAppPreRegistered() mechanism, which already provided
such a waiting feature for one request. It has been extended to
accomodate an arbitrary number of waiting requests and renamed to
_IsAppRegistered().

This fixed bug #763.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18728 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented AS_DIRECT_WINDOW_SET_FULLSCREEN so that it sets kWindowScreenFeel
when enabled, and B_NORMAL_WINDOW_FEEL when disabled. IOW when enabled, no
other windows can interfere.
* Therefore, it's no longer necessary to have the screen_blanker window
use kWindowScreenFeel - it will set its window to full screen as long
as the blanker runs.
* Added a AS_APP_CRASHED notification in the app_server that will remove
all kWindowScreenFeels from the windows of the crashed app.
* This is now used by the debugger to ensure that the debugger alert will
be visible.
* Factored out a DesktopLink class out of the BRoster::_ActivateApp()
method. This class is now also used in the new BRoster::_ApplicationCrashed()
method as used in the debug_server (via BRoster::Private).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17785 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16430 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a boolean "synchronous" parameter to BRoster::Shutdown(). Used in the
Deskbar to initiate the shutdown process asynchronously. Couldn't test it,
because opening the Be menu doesn't work:
***PANIC: BW: Can't find view with ID: 19 !***



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13722 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a "confirm" parameter to BRoster::Shutdown() which causes the registrar
to ask the user to confirm shutting down the system.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13563 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added BRoster::ShutDown().
* Adjusted the shutdown command to use BRoster::ShutDown(). Removed
the alert.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13416 a95241bf-73f2-0310-859d-f6bbb57e9c96

Replaced _init_roster_() _delete_roster_() by static functions in BRoster::Private.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11033 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleaned up BRoster's friends mess. All access to private BRoster functionality is now done through the newly added BRoster::Private class, which is BRoster's only friend (poor BRoster ;-).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2664 a95241bf-73f2-0310-859d-f6bbb57e9c96