C++ (Cpp) Iterator Examples

Example #1

File: TRoster.cpp Project: looncraz/haiku

/*!	\brief Checks whether the (pre-)registered applications are still running.

	This is necessary, since killed applications don't unregister properly.
*/
void
TRoster::CheckSanity()
{
	BAutolock _(fLock);

	// not early (pre-)registered applications
	AppInfoList obsoleteApps;
	for (AppInfoList::Iterator it = fRegisteredApps.It(); it.IsValid(); ++it) {
		if (!(*it)->IsRunning())
			obsoleteApps.AddInfo(*it);
	}

	// remove the apps
	for (AppInfoList::Iterator it = obsoleteApps.It(); it.IsValid(); ++it) {
		RemoveApp(*it);
		delete *it;
	}
	obsoleteApps.MakeEmpty(false);
		// don't delete infos a second time

	// early pre-registered applications
	bigtime_t timeLimit = system_time() - kMaximalEarlyPreRegistrationPeriod;
	for (AppInfoList::Iterator it = fEarlyPreRegisteredApps.It();
		 it.IsValid();
		 ++it) {
		if ((*it)->registration_time < timeLimit)
			obsoleteApps.AddInfo(*it);
	}

	// remove the apps
	for (AppInfoList::Iterator it = obsoleteApps.It(); it.IsValid(); ++it) {
		fEarlyPreRegisteredApps.RemoveInfo(*it);
		delete *it;
	}
	obsoleteApps.MakeEmpty(false);
		// don't delete infos a second time
}

Example #2

void
ShutdownProcess::_AddShutdownWindowApps(AppInfoList& infos)
{
	if (!fHasGUI)
		return;

	for (AppInfoList::Iterator it = infos.It(); it.IsValid(); ++it) {
		RosterAppInfo* info = *it;

		// init an app file info
		BFile file;
		status_t error = file.SetTo(&info->ref, B_READ_ONLY);
		if (error != B_OK) {
			WARNING(("ShutdownProcess::_AddShutdownWindowApps(): Failed to "
				"open file for app %s: %s\n", info->signature,
				strerror(error)));
			continue;
		}

		BAppFileInfo appFileInfo;
		error = appFileInfo.SetTo(&file);
		if (error != B_OK) {
			WARNING(("ShutdownProcess::_AddShutdownWindowApps(): Failed to "
				"init app file info for app %s: %s\n", info->signature,
				strerror(error)));
		}

		// get the application icons
#ifdef __HAIKU__
		color_space format = B_RGBA32;
#else
		color_space format = B_CMAP8;
#endif

		// mini icon
		BBitmap* miniIcon = new(nothrow) BBitmap(BRect(0, 0, 15, 15), format);
		if (miniIcon != NULL) {
			error = miniIcon->InitCheck();
			if (error == B_OK)
				error = appFileInfo.GetTrackerIcon(miniIcon, B_MINI_ICON);
			if (error != B_OK) {
				delete miniIcon;
				miniIcon = NULL;
			}
		}

		// mini icon
		BBitmap* largeIcon = new(nothrow) BBitmap(BRect(0, 0, 31, 31), format);
		if (largeIcon != NULL) {
			error = largeIcon->InitCheck();
			if (error == B_OK)
				error = appFileInfo.GetTrackerIcon(largeIcon, B_LARGE_ICON);
			if (error != B_OK) {
				delete largeIcon;
				largeIcon = NULL;
			}
		}

		// add the app
		error = fWindow->AddApp(info->team, miniIcon, largeIcon);
		if (error != B_OK) {
			WARNING(("ShutdownProcess::_AddShutdownWindowApps(): Failed to "
				"add app to the shutdown window: %s\n", strerror(error)));
		}
	}
}