BootReceiver: Report correct headers for last messages (56734f96) · Commits · e / os / android_frameworks_base

core/java/com/android/server/BootReceiver.java

+39 −3

Original line number	Diff line number	Diff line
		@@ -79,6 +79,9 @@ public class BootReceiver extends BroadcastReceiver {
		private static final String LOG_FILES_FILE = "log-files.xml";
		private static final AtomicFile sFile = new AtomicFile(new File(
		Environment.getDataSystemDirectory(), LOG_FILES_FILE));
		private static final String LAST_HEADER_FILE = "last-header.txt";
		private static final File lastHeaderFile = new File(
		Environment.getDataSystemDirectory(), LAST_HEADER_FILE);

		@Override
		public void onReceive(final Context context, Intent intent) {
		@@ -113,9 +116,17 @@ public class BootReceiver extends BroadcastReceiver {
		Downloads.removeAllDownloadsByPackage(context, OLD_UPDATER_PACKAGE, OLD_UPDATER_CLASS);
		}

		private void logBootEvents(Context ctx) throws IOException {
		final DropBoxManager db = (DropBoxManager) ctx.getSystemService(Context.DROPBOX_SERVICE);
		final String headers = new StringBuilder(512)
		private String getPreviousBootHeaders() {
		try {
		return FileUtils.readTextFile(lastHeaderFile, 0, null);
		} catch (IOException e) {
		Slog.e(TAG, "Error reading " + lastHeaderFile, e);
		return null;
		}
		}

		private String getCurrentBootHeaders() throws IOException {
		return new StringBuilder(512)
		.append("Build: ").append(Build.FINGERPRINT).append("\n")
		.append("Hardware: ").append(Build.BOARD).append("\n")
		.append("Revision: ")
		@@ -125,6 +136,31 @@ public class BootReceiver extends BroadcastReceiver {
		.append("Kernel: ")
		.append(FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n"))
		.append("\n").toString();
		}


		private String getBootHeadersToLogAndUpdate() throws IOException {
		final String oldHeaders = getPreviousBootHeaders();
		final String newHeaders = getCurrentBootHeaders();

		try {
		FileUtils.stringToFile(lastHeaderFile, newHeaders);
		} catch (IOException e) {
		Slog.e(TAG, "Error writing " + lastHeaderFile, e);
		}

		if (oldHeaders == null) {
		// If we failed to read the old headers, use the current headers
		// but note this in the headers so we know
		return "isPrevious: false\n" + newHeaders;
		}

		return "isPrevious: true\n" + oldHeaders;
		}

		private void logBootEvents(Context ctx) throws IOException {
		final DropBoxManager db = (DropBoxManager) ctx.getSystemService(Context.DROPBOX_SERVICE);
		final String headers = getBootHeadersToLogAndUpdate();
		final String bootReason = SystemProperties.get("ro.boot.bootreason", null);

		String recovery = RecoverySystem.handleAftermath(ctx);