void
AppServer::MessageReceived(BMessage* message)
{
switch (message->what) {
case AS_GET_DESKTOP:
{
Desktop* desktop = NULL;
int32 userID = message->GetInt32("user", 0);
int32 version = message->GetInt32("version", 0);
const char* targetScreen = message->GetString("target");
if (version != AS_PROTOCOL_VERSION) {
syslog(LOG_ERR, "Application for user %" B_PRId32 " does not "
"support the current server protocol.\n", userID);
} else {
desktop = _FindDesktop(userID, targetScreen);
if (desktop == NULL) {
// we need to create a new desktop object for this user
// TODO: test if the user exists on the system
// TODO: maybe have a separate AS_START_DESKTOP_SESSION for
// authorizing the user
desktop = _CreateDesktop(userID, targetScreen);
}
}
BMessage reply;
if (desktop != NULL)
reply.AddInt32("port", desktop->MessagePort());
else
reply.what = (uint32)B_ERROR;
message->SendReply(&reply);
break;
}
default:
// We don't allow application scripting
STRACE(("AppServer received unexpected code %" B_PRId32 "\n",
message->what));
break;
}
}
/*! \brief Message handling function for all messages sent to the app_server
\param code ID of the message sent
\param buffer Attachment buffer for the message.
*/
void
AppServer::_DispatchMessage(int32 code, BPrivate::LinkReceiver& msg)
{
switch (code) {
case AS_GET_DESKTOP:
{
Desktop* desktop = NULL;
port_id replyPort;
msg.Read<port_id>(&replyPort);
int32 userID;
msg.Read<int32>(&userID);
char* targetScreen = NULL;
msg.ReadString(&targetScreen);
if (targetScreen != NULL && strlen(targetScreen) == 0) {
free(targetScreen);
targetScreen = NULL;
}
int32 version;
if (msg.Read<int32>(&version) < B_OK
|| version != AS_PROTOCOL_VERSION) {
syslog(LOG_ERR, "Application for user %ld with port %ld does "
"not support the current server protocol.\n", userID,
replyPort);
} else {
desktop = _FindDesktop(userID, targetScreen);
if (desktop == NULL) {
// we need to create a new desktop object for this user
// TODO: test if the user exists on the system
// TODO: maybe have a separate AS_START_DESKTOP_SESSION for
// authorizing the user
desktop = _CreateDesktop(userID, targetScreen);
}
}
free(targetScreen);
BPrivate::LinkSender reply(replyPort);
if (desktop != NULL) {
reply.StartMessage(B_OK);
reply.Attach<port_id>(desktop->MessagePort());
} else
reply.StartMessage(B_ERROR);
reply.Flush();
break;
}
#if TEST_MODE
case B_QUIT_REQUESTED:
{
// We've been asked to quit, so (for now) broadcast to all
// desktops to quit. This situation will occur only when the server
// is compiled as a regular Be application.
fQuitting = true;
while (fDesktops.CountItems() > 0) {
Desktop *desktop = fDesktops.RemoveItemAt(0);
thread_id thread = desktop->Thread();
desktop->PostMessage(B_QUIT_REQUESTED);
// we just wait for the desktop to kill itself
status_t status;
wait_for_thread(thread, &status);
}
delete this;
// we are now clear to exit
exit(0);
break;
}
#endif
default:
STRACE(("Server::MainLoop received unexpected code %ld (offset %ld)\n",
code, code - SERVER_TRUE));
break;
}
}
