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Bug 826053 - Add main ANRReporter logic; r=blassey
This commit is contained in:
Jim Chen
parent
dea4b5c827
commit
b34df63443
@ -260,6 +260,188 @@ public final class ANRReporter extends BroadcastReceiver
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return 0L;
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}
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/*
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a saved telemetry ping file consists of JSON in the following format,
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{
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"slug": "<uuid-string>",
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"payload": "<escaped-json-data-string>",
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"checksum": "<base64-sha-256-string>"
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}
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for Android ANR, our unescaped JSON payload should look like,
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{
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"ver": 1,
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"simpleMeasurements": {
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"uptime": <uptime>
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},
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"info": {
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"reason": "android-anr-report",
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"OS": "Android",
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...
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},
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"androidANR": "...",
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"androidLogcat": "..."
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}
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*/
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private static int writePingPayload(OutputStream ping,
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MessageDigest checksum,
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String payload) throws IOException {
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byte [] data = payload.getBytes(PING_CHARSET);
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checksum.update(data);
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data = JSONObject.quote(payload).getBytes(PING_CHARSET);
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// first and last bytes are quotes inserted by JSONObject.quote; discard them
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ping.write(data, 1, data.length - 2);
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return data.length - 2;
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}
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private static void fillPingHeader(OutputStream ping, MessageDigest checksum, String slug)
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throws IOException {
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// ping file header
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byte [] data = ("{" +
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"\"slug\":" + JSONObject.quote(slug) + "," +
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"\"payload\":\"").getBytes(PING_CHARSET);
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ping.write(data);
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if (DEBUG) {
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Log.d(LOGTAG, "wrote ping header, size = " + String.valueOf(data.length));
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}
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// payload start
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int size = writePingPayload(ping, checksum, ("{" +
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"\"ver\":1," +
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"\"simpleMeasurements\":{" +
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"\"uptime\":" + String.valueOf(getUptimeMins()) +
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"}," +
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"\"info\":{" +
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"\"reason\":\"android-anr-report\"," +
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"\"OS\":" + JSONObject.quote(GeckoAppInfo.getOS()) + "," +
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"\"version\":\"" + String.valueOf(Build.VERSION.SDK_INT) + "\"," +
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"\"appID\":" + JSONObject.quote(GeckoAppInfo.getID()) + "," +
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"\"appVersion\":" + JSONObject.quote(GeckoAppInfo.getVersion()) + "," +
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"\"appName\":" + JSONObject.quote(GeckoAppInfo.getName()) + "," +
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"\"appBuildID\":" + JSONObject.quote(GeckoAppInfo.getBuildID()) + "," +
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"\"appUpdateChannel\":" + JSONObject.quote(GeckoAppInfo.getUpdateChannel()) + "," +
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"\"platformBuildID\":" + JSONObject.quote(GeckoAppInfo.getPlatformBuildID()) + "," +
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"\"locale\":" + JSONObject.quote(GeckoAppInfo.getLocale()) + "," +
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"\"cpucount\":" + String.valueOf(Runtime.getRuntime().availableProcessors()) + "," +
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"\"memsize\":" + String.valueOf(getTotalMem()) + "," +
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"\"arch\":" + JSONObject.quote(System.getProperty("os.arch")) + "," +
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"\"kernel_version\":" + JSONObject.quote(System.getProperty("os.version")) + "," +
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"\"device\":" + JSONObject.quote(Build.MODEL) + "," +
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"\"manufacturer\":" + JSONObject.quote(Build.MANUFACTURER) + "," +
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"\"hardware\":" + JSONObject.quote(Build.VERSION.SDK_INT < 8 ? "" :
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Build.HARDWARE) +
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"}," +
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"\"androidANR\":\""));
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if (DEBUG) {
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Log.d(LOGTAG, "wrote metadata, size = " + String.valueOf(size));
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}
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// We are at the start of ANR data
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}
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private static int fillPingBlock(OutputStream ping, MessageDigest checksum, Reader reader)
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throws IOException {
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int total = 0;
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char [] block = new char[TRACES_BLOCK_SIZE];
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for (int size = reader.read(block); size >= 0; size = reader.read(block)) {
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String quoted = JSONObject.quote(new String(block, 0, size));
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total += writePingPayload(ping, checksum, quoted.substring(1, quoted.length() - 1));
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}
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return total;
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}
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private static void fillPingFooter(OutputStream ping, MessageDigest checksum)
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throws IOException {
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// We are at the end of ANR data
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int total = writePingPayload(ping, checksum, ("\"," +
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"\"androidLogcat\":\""));
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try {
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// get the last 200 lines of logcat
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Process proc = (new ProcessBuilder())
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.command("/system/bin/logcat", "-v", "threadtime", "-t", "200", "-d", "*:D")
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.redirectErrorStream(true)
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.start();
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try {
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Reader procOut = new InputStreamReader(proc.getInputStream(), TRACES_CHARSET);
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int size = fillPingBlock(ping, checksum, procOut);
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if (DEBUG) {
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Log.d(LOGTAG, "wrote logcat, size = " + String.valueOf(size));
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}
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} finally {
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proc.destroy();
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}
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} catch (IOException e) {
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// ignore because logcat is not essential
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Log.w(LOGTAG, e);
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}
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total += writePingPayload(ping, checksum, "\"}");
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String base64Checksum = Base64.encodeToString(checksum.digest(), Base64.NO_WRAP);
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if (DEBUG) {
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Log.d(LOGTAG, "checksum: " + base64Checksum);
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}
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byte [] data = (
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"\"," +
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"\"checksum\":" + JSONObject.quote(base64Checksum) +
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"}").getBytes(PING_CHARSET);
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ping.write(data);
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if (DEBUG) {
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Log.d(LOGTAG, "wrote ping footer, size = " + String.valueOf(data.length + total));
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}
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}
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private static void processTraces(Reader traces, File pingFile) {
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try {
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OutputStream ping = new BufferedOutputStream(
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new FileOutputStream(pingFile), TRACES_BLOCK_SIZE);
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try {
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MessageDigest checksum = MessageDigest.getInstance("SHA-256");
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fillPingHeader(ping, checksum, pingFile.getName());
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int size = fillPingBlock(ping, checksum, traces);
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if (DEBUG) {
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Log.d(LOGTAG, "wrote traces, size = " + String.valueOf(size));
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}
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fillPingFooter(ping, checksum);
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if (DEBUG) {
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Log.d(LOGTAG, "finished creating ping file");
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}
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return;
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} finally {
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ping.close();
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}
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} catch (GeneralSecurityException e) {
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Log.w(LOGTAG, e);
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} catch (IOException e) {
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Log.w(LOGTAG, e);
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}
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// exception; delete ping file
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if (pingFile.exists()) {
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pingFile.delete();
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}
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}
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private static void processTraces(File tracesFile, File pingFile) {
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try {
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Reader traces = new InputStreamReader(
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new FileInputStream(tracesFile), TRACES_CHARSET);
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try {
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processTraces(traces, pingFile);
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} finally {
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traces.close();
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}
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} catch (IOException e) {
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Log.w(LOGTAG, e);
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}
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}
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@Override
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public void onReceive(Context context, Intent intent) {
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if (DEBUG) {
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@ -268,6 +450,32 @@ public final class ANRReporter extends BroadcastReceiver
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if (!ANR_ACTION.equals(intent.getAction())) {
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return;
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}
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// make sure we have a good save location first
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File pingFile = getPingFile();
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if (DEBUG) {
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Log.d(LOGTAG, "using ping file: " + String.valueOf(pingFile));
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}
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if (pingFile == null) {
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return;
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}
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File tracesFile = getTracesFile();
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if (DEBUG) {
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Log.d(LOGTAG, "using traces file: " + String.valueOf(tracesFile));
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}
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if (tracesFile == null) {
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return;
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}
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// We get ANR intents from all ANRs in the system, but we only want Gecko ANRs
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if (!isGeckoTraces(context.getPackageName(), tracesFile)) {
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if (DEBUG) {
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Log.d(LOGTAG, "traces is not Gecko ANR");
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}
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return;
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}
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Log.i(LOGTAG, "processing Gecko ANR");
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processTraces(tracesFile, pingFile);
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}
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}
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