Examples with Process android.os.Process used on opensource projects

Example 1 with Process

use of android.os.Process in project android_frameworks_base by ParanoidAndroid.

the class ActivityManagerService method startProcessLocked.

private final void startProcessLocked(ProcessRecord app, String hostingType, String hostingNameStr) {
    if (app.pid > 0 && app.pid != MY_PID) {
        synchronized (mPidsSelfLocked) {
            mPidsSelfLocked.remove(app.pid);
            mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
        }
        app.setPid(0);
    }
    if (DEBUG_PROCESSES && mProcessesOnHold.contains(app))
        Slog.v(TAG, "startProcessLocked removing on hold: " + app);
    mProcessesOnHold.remove(app);
    updateCpuStats();
    System.arraycopy(mProcDeaths, 0, mProcDeaths, 1, mProcDeaths.length - 1);
    mProcDeaths[0] = 0;
    try {
        int uid = app.uid;
        int[] gids = null;
        int mountExternal = Zygote.MOUNT_EXTERNAL_NONE;
        if (!app.isolated) {
            int[] permGids = null;
            try {
                final PackageManager pm = mContext.getPackageManager();
                permGids = pm.getPackageGids(app.info.packageName);
                if (Environment.isExternalStorageEmulated()) {
                    if (pm.checkPermission(android.Manifest.permission.ACCESS_ALL_EXTERNAL_STORAGE, app.info.packageName) == PERMISSION_GRANTED) {
                        mountExternal = Zygote.MOUNT_EXTERNAL_MULTIUSER_ALL;
                    } else {
                        mountExternal = Zygote.MOUNT_EXTERNAL_MULTIUSER;
                    }
                }
            } catch (PackageManager.NameNotFoundException e) {
                Slog.w(TAG, "Unable to retrieve gids", e);
            }
            /*
                 * Add shared application GID so applications can share some
                 * resources like shared libraries
                 */
            if (permGids == null) {
                gids = new int[1];
            } else {
                gids = new int[permGids.length + 1];
                System.arraycopy(permGids, 0, gids, 1, permGids.length);
            }
            gids[0] = UserHandle.getSharedAppGid(UserHandle.getAppId(uid));
        }
        if (mFactoryTest != SystemServer.FACTORY_TEST_OFF) {
            if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL && mTopComponent != null && app.processName.equals(mTopComponent.getPackageName())) {
                uid = 0;
            }
            if (mFactoryTest == SystemServer.FACTORY_TEST_HIGH_LEVEL && (app.info.flags & ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
                uid = 0;
            }
        }
        int debugFlags = 0;
        if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
            debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER;
            // Also turn on CheckJNI for debuggable apps. It's quite
            // awkward to turn on otherwise.
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        // system is booted in safe mode.
        if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 || Zygote.systemInSafeMode == true) {
            debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
        }
        if ("1".equals(SystemProperties.get("debug.checkjni"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
        }
        if ("1".equals(SystemProperties.get("debug.assert"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
        }
        // Start the process.  It will either succeed and return a result containing
        // the PID of the new process, or else throw a RuntimeException.
        Process.ProcessStartResult startResult = Process.start("android.app.ActivityThread", app.processName, uid, uid, gids, debugFlags, mountExternal, app.info.targetSdkVersion, app.info.seinfo, null);
        BatteryStatsImpl bs = app.batteryStats.getBatteryStats();
        synchronized (bs) {
            if (bs.isOnBattery()) {
                app.batteryStats.incStartsLocked();
            }
        }
        EventLog.writeEvent(EventLogTags.AM_PROC_START, UserHandle.getUserId(uid), startResult.pid, uid, app.processName, hostingType, hostingNameStr != null ? hostingNameStr : "");
        if (app.persistent) {
            Watchdog.getInstance().processStarted(app.processName, startResult.pid);
        }
        StringBuilder buf = mStringBuilder;
        buf.setLength(0);
        buf.append("Start proc ");
        buf.append(app.processName);
        buf.append(" for ");
        buf.append(hostingType);
        if (hostingNameStr != null) {
            buf.append(" ");
            buf.append(hostingNameStr);
        }
        buf.append(": pid=");
        buf.append(startResult.pid);
        buf.append(" uid=");
        buf.append(uid);
        buf.append(" gids={");
        if (gids != null) {
            for (int gi = 0; gi < gids.length; gi++) {
                if (gi != 0)
                    buf.append(", ");
                buf.append(gids[gi]);
            }
        }
        buf.append("}");
        Slog.i(TAG, buf.toString());
        app.setPid(startResult.pid);
        app.usingWrapper = startResult.usingWrapper;
        app.removed = false;
        synchronized (mPidsSelfLocked) {
            this.mPidsSelfLocked.put(startResult.pid, app);
            Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
            msg.obj = app;
            mHandler.sendMessageDelayed(msg, startResult.usingWrapper ? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
        }
    } catch (RuntimeException e) {
        // XXX do better error recovery.
        app.setPid(0);
        Slog.e(TAG, "Failure starting process " + app.processName, e);
    }
}

Example 2 with Process

use of android.os.Process in project android_frameworks_base by DirtyUnicorns.

the class ActivityManagerService method startProcessLocked.

private final void startProcessLocked(ProcessRecord app, String hostingType, String hostingNameStr, String abiOverride, String entryPoint, String[] entryPointArgs) {
    long startTime = SystemClock.elapsedRealtime();
    if (app.pid > 0 && app.pid != MY_PID) {
        checkTime(startTime, "startProcess: removing from pids map");
        synchronized (mPidsSelfLocked) {
            mPidsSelfLocked.remove(app.pid);
            mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
        }
        checkTime(startTime, "startProcess: done removing from pids map");
        app.setPid(0);
    }
    if (DEBUG_PROCESSES && mProcessesOnHold.contains(app))
        Slog.v(TAG_PROCESSES, "startProcessLocked removing on hold: " + app);
    mProcessesOnHold.remove(app);
    checkTime(startTime, "startProcess: starting to update cpu stats");
    updateCpuStats();
    checkTime(startTime, "startProcess: done updating cpu stats");
    try {
        try {
            final int userId = UserHandle.getUserId(app.uid);
            AppGlobals.getPackageManager().checkPackageStartable(app.info.packageName, userId);
        } catch (RemoteException e) {
            throw e.rethrowAsRuntimeException();
        }
        int uid = app.uid;
        int[] gids = null;
        int mountExternal = Zygote.MOUNT_EXTERNAL_NONE;
        if (!app.isolated) {
            int[] permGids = null;
            try {
                checkTime(startTime, "startProcess: getting gids from package manager");
                final IPackageManager pm = AppGlobals.getPackageManager();
                permGids = pm.getPackageGids(app.info.packageName, MATCH_DEBUG_TRIAGED_MISSING, app.userId);
                MountServiceInternal mountServiceInternal = LocalServices.getService(MountServiceInternal.class);
                mountExternal = mountServiceInternal.getExternalStorageMountMode(uid, app.info.packageName);
            } catch (RemoteException e) {
                throw e.rethrowAsRuntimeException();
            }
            /*
                 * Add shared application and profile GIDs so applications can share some
                 * resources like shared libraries and access user-wide resources
                 */
            if (ArrayUtils.isEmpty(permGids)) {
                gids = new int[2];
            } else {
                gids = new int[permGids.length + 2];
                System.arraycopy(permGids, 0, gids, 2, permGids.length);
            }
            gids[0] = UserHandle.getSharedAppGid(UserHandle.getAppId(uid));
            gids[1] = UserHandle.getUserGid(UserHandle.getUserId(uid));
        }
        checkTime(startTime, "startProcess: building args");
        if (mFactoryTest != FactoryTest.FACTORY_TEST_OFF) {
            if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL && mTopComponent != null && app.processName.equals(mTopComponent.getPackageName())) {
                uid = 0;
            }
            if (mFactoryTest == FactoryTest.FACTORY_TEST_HIGH_LEVEL && (app.info.flags & ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
                uid = 0;
            }
        }
        int debugFlags = 0;
        if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
            debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER;
            // Also turn on CheckJNI for debuggable apps. It's quite
            // awkward to turn on otherwise.
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        // system is booted in safe mode.
        if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 || mSafeMode == true) {
            debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
        }
        if ("1".equals(SystemProperties.get("debug.checkjni"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        String genDebugInfoProperty = SystemProperties.get("debug.generate-debug-info");
        if ("true".equals(genDebugInfoProperty)) {
            debugFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO;
        }
        if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
        }
        if ("1".equals(SystemProperties.get("debug.assert"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
        }
        if (mNativeDebuggingApp != null && mNativeDebuggingApp.equals(app.processName)) {
            // Enable all debug flags required by the native debugger.
            // Don't interpret anything
            debugFlags |= Zygote.DEBUG_ALWAYS_JIT;
            // Generate debug info
            debugFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO;
            // Disbale optimizations
            debugFlags |= Zygote.DEBUG_NATIVE_DEBUGGABLE;
            mNativeDebuggingApp = null;
        }
        //Check if zygote should refresh its fonts
        boolean refreshTheme = false;
        if (SystemProperties.getBoolean(PROP_REFRESH_THEME, false)) {
            SystemProperties.set(PROP_REFRESH_THEME, "false");
            refreshTheme = true;
        }
        String requiredAbi = (abiOverride != null) ? abiOverride : app.info.primaryCpuAbi;
        if (requiredAbi == null) {
            requiredAbi = Build.SUPPORTED_ABIS[0];
        }
        String instructionSet = null;
        if (app.info.primaryCpuAbi != null) {
            instructionSet = VMRuntime.getInstructionSet(app.info.primaryCpuAbi);
        }
        app.gids = gids;
        app.requiredAbi = requiredAbi;
        app.instructionSet = instructionSet;
        // Start the process.  It will either succeed and return a result containing
        // the PID of the new process, or else throw a RuntimeException.
        boolean isActivityProcess = (entryPoint == null);
        if (entryPoint == null)
            entryPoint = "android.app.ActivityThread";
        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "Start proc: " + app.processName);
        checkTime(startTime, "startProcess: asking zygote to start proc");
        Process.ProcessStartResult startResult = Process.start(entryPoint, app.processName, uid, uid, gids, debugFlags, mountExternal, app.info.targetSdkVersion, app.info.seinfo, requiredAbi, instructionSet, app.info.dataDir, refreshTheme, entryPointArgs);
        checkTime(startTime, "startProcess: returned from zygote!");
        Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
        mBatteryStatsService.noteProcessStart(app.processName, app.info.uid);
        checkTime(startTime, "startProcess: done updating battery stats");
        EventLog.writeEvent(EventLogTags.AM_PROC_START, UserHandle.getUserId(uid), startResult.pid, uid, app.processName, hostingType, hostingNameStr != null ? hostingNameStr : "");
        try {
            AppGlobals.getPackageManager().logAppProcessStartIfNeeded(app.processName, app.uid, app.info.seinfo, app.info.sourceDir, startResult.pid);
        } catch (RemoteException ex) {
        // Ignore
        }
        if (app.persistent) {
            Watchdog.getInstance().processStarted(app.processName, startResult.pid);
        }
        checkTime(startTime, "startProcess: building log message");
        StringBuilder buf = mStringBuilder;
        buf.setLength(0);
        buf.append("Start proc ");
        buf.append(startResult.pid);
        buf.append(':');
        buf.append(app.processName);
        buf.append('/');
        UserHandle.formatUid(buf, uid);
        if (!isActivityProcess) {
            buf.append(" [");
            buf.append(entryPoint);
            buf.append("]");
        }
        buf.append(" for ");
        buf.append(hostingType);
        if (hostingNameStr != null) {
            buf.append(" ");
            buf.append(hostingNameStr);
        }
        Slog.i(TAG, buf.toString());
        app.setPid(startResult.pid);
        app.usingWrapper = startResult.usingWrapper;
        app.removed = false;
        app.killed = false;
        app.killedByAm = false;
        checkTime(startTime, "startProcess: starting to update pids map");
        ProcessRecord oldApp;
        synchronized (mPidsSelfLocked) {
            oldApp = mPidsSelfLocked.get(startResult.pid);
        }
        // If there is already an app occupying that pid that hasn't been cleaned up
        if (oldApp != null && !app.isolated) {
            // Clean up anything relating to this pid first
            Slog.w(TAG, "Reusing pid " + startResult.pid + " while app is still mapped to it");
            cleanUpApplicationRecordLocked(oldApp, false, false, -1, true);
        }
        synchronized (mPidsSelfLocked) {
            this.mPidsSelfLocked.put(startResult.pid, app);
            if (isActivityProcess) {
                Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
                msg.obj = app;
                mHandler.sendMessageDelayed(msg, startResult.usingWrapper ? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
            }
        }
        checkTime(startTime, "startProcess: done updating pids map");
    } catch (RuntimeException e) {
        Slog.e(TAG, "Failure starting process " + app.processName, e);
        // Something went very wrong while trying to start this process; one
        // common case is when the package is frozen due to an active
        // upgrade. To recover, clean up any active bookkeeping related to
        // starting this process. (We already invoked this method once when
        // the package was initially frozen through KILL_APPLICATION_MSG, so
        // it doesn't hurt to use it again.)
        forceStopPackageLocked(app.info.packageName, UserHandle.getAppId(app.uid), false, false, true, false, false, UserHandle.getUserId(app.userId), "start failure");
    }
}

Example 3 with Process

use of android.os.Process in project platform_frameworks_base by android.

the class ActivityManagerService method startProcessLocked.

private final void startProcessLocked(ProcessRecord app, String hostingType, String hostingNameStr, String abiOverride, String entryPoint, String[] entryPointArgs) {
    long startTime = SystemClock.elapsedRealtime();
    if (app.pid > 0 && app.pid != MY_PID) {
        checkTime(startTime, "startProcess: removing from pids map");
        synchronized (mPidsSelfLocked) {
            mPidsSelfLocked.remove(app.pid);
            mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
        }
        checkTime(startTime, "startProcess: done removing from pids map");
        app.setPid(0);
    }
    if (DEBUG_PROCESSES && mProcessesOnHold.contains(app))
        Slog.v(TAG_PROCESSES, "startProcessLocked removing on hold: " + app);
    mProcessesOnHold.remove(app);
    checkTime(startTime, "startProcess: starting to update cpu stats");
    updateCpuStats();
    checkTime(startTime, "startProcess: done updating cpu stats");
    try {
        try {
            final int userId = UserHandle.getUserId(app.uid);
            AppGlobals.getPackageManager().checkPackageStartable(app.info.packageName, userId);
        } catch (RemoteException e) {
            throw e.rethrowAsRuntimeException();
        }
        int uid = app.uid;
        int[] gids = null;
        int mountExternal = Zygote.MOUNT_EXTERNAL_NONE;
        if (!app.isolated) {
            int[] permGids = null;
            try {
                checkTime(startTime, "startProcess: getting gids from package manager");
                final IPackageManager pm = AppGlobals.getPackageManager();
                permGids = pm.getPackageGids(app.info.packageName, MATCH_DEBUG_TRIAGED_MISSING, app.userId);
                MountServiceInternal mountServiceInternal = LocalServices.getService(MountServiceInternal.class);
                mountExternal = mountServiceInternal.getExternalStorageMountMode(uid, app.info.packageName);
            } catch (RemoteException e) {
                throw e.rethrowAsRuntimeException();
            }
            /*
                 * Add shared application and profile GIDs so applications can share some
                 * resources like shared libraries and access user-wide resources
                 */
            if (ArrayUtils.isEmpty(permGids)) {
                gids = new int[3];
            } else {
                gids = new int[permGids.length + 3];
                System.arraycopy(permGids, 0, gids, 3, permGids.length);
            }
            gids[0] = UserHandle.getSharedAppGid(UserHandle.getAppId(uid));
            gids[1] = UserHandle.getCacheAppGid(UserHandle.getAppId(uid));
            gids[2] = UserHandle.getUserGid(UserHandle.getUserId(uid));
        }
        checkTime(startTime, "startProcess: building args");
        if (mFactoryTest != FactoryTest.FACTORY_TEST_OFF) {
            if (mFactoryTest == FactoryTest.FACTORY_TEST_LOW_LEVEL && mTopComponent != null && app.processName.equals(mTopComponent.getPackageName())) {
                uid = 0;
            }
            if (mFactoryTest == FactoryTest.FACTORY_TEST_HIGH_LEVEL && (app.info.flags & ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
                uid = 0;
            }
        }
        int debugFlags = 0;
        if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
            debugFlags |= Zygote.DEBUG_ENABLE_JDWP;
            debugFlags |= Zygote.DEBUG_JAVA_DEBUGGABLE;
            // Also turn on CheckJNI for debuggable apps. It's quite
            // awkward to turn on otherwise.
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        // system is booted in safe mode.
        if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 || mSafeMode == true) {
            debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
        }
        if ("1".equals(SystemProperties.get("debug.checkjni"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        String genDebugInfoProperty = SystemProperties.get("debug.generate-debug-info");
        if ("true".equals(genDebugInfoProperty)) {
            debugFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO;
        }
        if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
        }
        if ("1".equals(SystemProperties.get("debug.assert"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
        }
        if (mNativeDebuggingApp != null && mNativeDebuggingApp.equals(app.processName)) {
            // Enable all debug flags required by the native debugger.
            // Don't interpret anything
            debugFlags |= Zygote.DEBUG_ALWAYS_JIT;
            // Generate debug info
            debugFlags |= Zygote.DEBUG_GENERATE_DEBUG_INFO;
            // Disbale optimizations
            debugFlags |= Zygote.DEBUG_NATIVE_DEBUGGABLE;
            mNativeDebuggingApp = null;
        }
        String invokeWith = null;
        if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
            // Debuggable apps may include a wrapper script with their library directory.
            String wrapperFileName = app.info.nativeLibraryDir + "/wrap.sh";
            if (new File(wrapperFileName).exists()) {
                invokeWith = "/system/bin/logwrapper " + wrapperFileName;
            }
        }
        String requiredAbi = (abiOverride != null) ? abiOverride : app.info.primaryCpuAbi;
        if (requiredAbi == null) {
            requiredAbi = Build.SUPPORTED_ABIS[0];
        }
        String instructionSet = null;
        if (app.info.primaryCpuAbi != null) {
            instructionSet = VMRuntime.getInstructionSet(app.info.primaryCpuAbi);
        }
        app.gids = gids;
        app.requiredAbi = requiredAbi;
        app.instructionSet = instructionSet;
        // Start the process.  It will either succeed and return a result containing
        // the PID of the new process, or else throw a RuntimeException.
        boolean isActivityProcess = (entryPoint == null);
        if (entryPoint == null)
            entryPoint = "android.app.ActivityThread";
        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "Start proc: " + app.processName);
        checkTime(startTime, "startProcess: asking zygote to start proc");
        Process.ProcessStartResult startResult;
        if (hostingType.equals("webview_service")) {
            startResult = Process.startWebView(entryPoint, app.processName, uid, uid, gids, debugFlags, mountExternal, app.info.targetSdkVersion, app.info.seinfo, requiredAbi, instructionSet, app.info.dataDir, null, entryPointArgs);
        } else {
            startResult = Process.start(entryPoint, app.processName, uid, uid, gids, debugFlags, mountExternal, app.info.targetSdkVersion, app.info.seinfo, requiredAbi, instructionSet, app.info.dataDir, invokeWith, entryPointArgs);
        }
        checkTime(startTime, "startProcess: returned from zygote!");
        Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
        mBatteryStatsService.noteProcessStart(app.processName, app.info.uid);
        checkTime(startTime, "startProcess: done updating battery stats");
        EventLog.writeEvent(EventLogTags.AM_PROC_START, UserHandle.getUserId(uid), startResult.pid, uid, app.processName, hostingType, hostingNameStr != null ? hostingNameStr : "");
        try {
            AppGlobals.getPackageManager().logAppProcessStartIfNeeded(app.processName, app.uid, app.info.seinfo, app.info.sourceDir, startResult.pid);
        } catch (RemoteException ex) {
        // Ignore
        }
        if (app.persistent) {
            Watchdog.getInstance().processStarted(app.processName, startResult.pid);
        }
        checkTime(startTime, "startProcess: building log message");
        StringBuilder buf = mStringBuilder;
        buf.setLength(0);
        buf.append("Start proc ");
        buf.append(startResult.pid);
        buf.append(':');
        buf.append(app.processName);
        buf.append('/');
        UserHandle.formatUid(buf, uid);
        if (!isActivityProcess) {
            buf.append(" [");
            buf.append(entryPoint);
            buf.append("]");
        }
        buf.append(" for ");
        buf.append(hostingType);
        if (hostingNameStr != null) {
            buf.append(" ");
            buf.append(hostingNameStr);
        }
        Slog.i(TAG, buf.toString());
        app.setPid(startResult.pid);
        app.usingWrapper = startResult.usingWrapper;
        app.removed = false;
        app.killed = false;
        app.killedByAm = false;
        checkTime(startTime, "startProcess: starting to update pids map");
        ProcessRecord oldApp;
        synchronized (mPidsSelfLocked) {
            oldApp = mPidsSelfLocked.get(startResult.pid);
        }
        // If there is already an app occupying that pid that hasn't been cleaned up
        if (oldApp != null && !app.isolated) {
            // Clean up anything relating to this pid first
            Slog.w(TAG, "Reusing pid " + startResult.pid + " while app is still mapped to it");
            cleanUpApplicationRecordLocked(oldApp, false, false, -1, true);
        }
        synchronized (mPidsSelfLocked) {
            this.mPidsSelfLocked.put(startResult.pid, app);
            if (isActivityProcess) {
                Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
                msg.obj = app;
                mHandler.sendMessageDelayed(msg, startResult.usingWrapper ? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
            }
        }
        checkTime(startTime, "startProcess: done updating pids map");
    } catch (RuntimeException e) {
        Slog.e(TAG, "Failure starting process " + app.processName, e);
        // Something went very wrong while trying to start this process; one
        // common case is when the package is frozen due to an active
        // upgrade. To recover, clean up any active bookkeeping related to
        // starting this process. (We already invoked this method once when
        // the package was initially frozen through KILL_APPLICATION_MSG, so
        // it doesn't hurt to use it again.)
        forceStopPackageLocked(app.info.packageName, UserHandle.getAppId(app.uid), false, false, true, false, false, UserHandle.getUserId(app.userId), "start failure");
    }
}

Example 4 with Process

use of android.os.Process in project cornerstone by Onskreen.

the class ActivityManagerService method startProcessLocked.

private final void startProcessLocked(ProcessRecord app, String hostingType, String hostingNameStr) {
    if (app.pid > 0 && app.pid != MY_PID) {
        synchronized (mPidsSelfLocked) {
            mPidsSelfLocked.remove(app.pid);
            mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
        }
        app.pid = 0;
    }
    if (DEBUG_PROCESSES && mProcessesOnHold.contains(app))
        Slog.v(TAG, "startProcessLocked removing on hold: " + app);
    mProcessesOnHold.remove(app);
    updateCpuStats();
    System.arraycopy(mProcDeaths, 0, mProcDeaths, 1, mProcDeaths.length - 1);
    mProcDeaths[0] = 0;
    try {
        int uid = app.uid;
        int[] gids = null;
        if (!app.isolated) {
            try {
                gids = mContext.getPackageManager().getPackageGids(app.info.packageName);
            } catch (PackageManager.NameNotFoundException e) {
                Slog.w(TAG, "Unable to retrieve gids", e);
            }
        }
        if (mFactoryTest != SystemServer.FACTORY_TEST_OFF) {
            if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL && mTopComponent != null && app.processName.equals(mTopComponent.getPackageName())) {
                uid = 0;
            }
            if (mFactoryTest == SystemServer.FACTORY_TEST_HIGH_LEVEL && (app.info.flags & ApplicationInfo.FLAG_FACTORY_TEST) != 0) {
                uid = 0;
            }
        }
        int debugFlags = 0;
        if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
            debugFlags |= Zygote.DEBUG_ENABLE_DEBUGGER;
            // Also turn on CheckJNI for debuggable apps. It's quite
            // awkward to turn on otherwise.
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        // system is booted in safe mode.
        if ((app.info.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0 || Zygote.systemInSafeMode == true) {
            debugFlags |= Zygote.DEBUG_ENABLE_SAFEMODE;
        }
        if ("1".equals(SystemProperties.get("debug.checkjni"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_CHECKJNI;
        }
        if ("1".equals(SystemProperties.get("debug.jni.logging"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_JNI_LOGGING;
        }
        if ("1".equals(SystemProperties.get("debug.assert"))) {
            debugFlags |= Zygote.DEBUG_ENABLE_ASSERT;
        }
        // Start the process.  It will either succeed and return a result containing
        // the PID of the new process, or else throw a RuntimeException.
        Process.ProcessStartResult startResult = Process.start("android.app.ActivityThread", app.processName, uid, uid, gids, debugFlags, app.info.targetSdkVersion, null);
        BatteryStatsImpl bs = app.batteryStats.getBatteryStats();
        synchronized (bs) {
            if (bs.isOnBattery()) {
                app.batteryStats.incStartsLocked();
            }
        }
        EventLog.writeEvent(EventLogTags.AM_PROC_START, startResult.pid, uid, app.processName, hostingType, hostingNameStr != null ? hostingNameStr : "");
        if (app.persistent) {
            Watchdog.getInstance().processStarted(app.processName, startResult.pid);
        }
        StringBuilder buf = mStringBuilder;
        buf.setLength(0);
        buf.append("Start proc ");
        buf.append(app.processName);
        buf.append(" for ");
        buf.append(hostingType);
        if (hostingNameStr != null) {
            buf.append(" ");
            buf.append(hostingNameStr);
        }
        buf.append(": pid=");
        buf.append(startResult.pid);
        buf.append(" uid=");
        buf.append(uid);
        buf.append(" gids={");
        if (gids != null) {
            for (int gi = 0; gi < gids.length; gi++) {
                if (gi != 0)
                    buf.append(", ");
                buf.append(gids[gi]);
            }
        }
        buf.append("}");
        Slog.i(TAG, buf.toString());
        app.pid = startResult.pid;
        app.usingWrapper = startResult.usingWrapper;
        app.removed = false;
        synchronized (mPidsSelfLocked) {
            this.mPidsSelfLocked.put(startResult.pid, app);
            Message msg = mHandler.obtainMessage(PROC_START_TIMEOUT_MSG);
            msg.obj = app;
            mHandler.sendMessageDelayed(msg, startResult.usingWrapper ? PROC_START_TIMEOUT_WITH_WRAPPER : PROC_START_TIMEOUT);
        }
    } catch (RuntimeException e) {
        // XXX do better error recovery.
        app.pid = 0;
        Slog.e(TAG, "Failure starting process " + app.processName, e);
    }
}