Add 'cancel' job scheduler shell command (8c67d12f) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/job/JobSchedulerService.java

+41 −3

Original line number	Diff line number	Diff line
		@@ -795,18 +795,22 @@ public final class JobSchedulerService extends com.android.server.SystemService
		* @param uid Uid to check against for removal of a job.
		*
		*/
		public void cancelJobsForUid(int uid, String reason) {
		public boolean cancelJobsForUid(int uid, String reason) {
		if (uid == Process.SYSTEM_UID) {
		Slog.wtfStack(TAG, "Can't cancel all jobs for system uid");
		return;
		return false;
		}

		boolean jobsCanceled = false;
		synchronized (mLock) {
		final List<JobStatus> jobsForUid = mJobs.getJobsByUid(uid);
		for (int i=0; i<jobsForUid.size(); i++) {
		JobStatus toRemove = jobsForUid.get(i);
		cancelJobImplLocked(toRemove, null, reason);
		jobsCanceled = true;
		}
		}
		return jobsCanceled;
		}

		/**
		@@ -816,13 +820,14 @@ public final class JobSchedulerService extends com.android.server.SystemService
		* @param uid Uid of the calling client.
		* @param jobId Id of the job, provided at schedule-time.
		*/
		public void cancelJob(int uid, int jobId) {
		public boolean cancelJob(int uid, int jobId) {
		JobStatus toCancel;
		synchronized (mLock) {
		toCancel = mJobs.getJobByUidAndJobId(uid, jobId);
		if (toCancel != null) {
		cancelJobImplLocked(toCancel, null, "cancel() called by app");
		}
		return (toCancel != null);
		}
		}

		@@ -2147,6 +2152,39 @@ public final class JobSchedulerService extends com.android.server.SystemService
		return 0;
		}

		// Shell command infrastructure: cancel a scheduled job
		int executeCancelCommand(PrintWriter pw, String pkgName, int userId,
		boolean hasJobId, int jobId) {
		if (DEBUG) {
		Slog.v(TAG, "executeCancelCommand(): " + pkgName + "/" + userId + " " + jobId);
		}

		int pkgUid = -1;
		try {
		IPackageManager pm = AppGlobals.getPackageManager();
		pkgUid = pm.getPackageUid(pkgName, 0, userId);
		} catch (RemoteException e) { /* can't happen */ }

		if (pkgUid < 0) {
		pw.println("Package " + pkgName + " not found.");
		return JobSchedulerShellCommand.CMD_ERR_NO_PACKAGE;
		}

		if (!hasJobId) {
		pw.println("Canceling all jobs for " + pkgName + " in user " + userId);
		if (!cancelJobsForUid(pkgUid, "cancel shell command for package")) {
		pw.println("No matching jobs found.");
		}
		} else {
		pw.println("Canceling job " + pkgName + "/#" + jobId + " in user " + userId);
		if (!cancelJob(pkgUid, jobId)) {
		pw.println("No matching job found.");
		}
		}

		return 0;
		}

		void setMonitorBattery(boolean enabled) {
		synchronized (mLock) {
		if (mBatteryController != null) {

services/core/java/com/android/server/job/JobSchedulerShellCommand.java

+44 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,8 @@ public final class JobSchedulerShellCommand extends ShellCommand {
		return runJob(pw);
		case "timeout":
		return timeout(pw);
		case "cancel":
		return cancelJob(pw);
		case "monitor-battery":
		return monitorBattery(pw);
		case "get-battery-seq":
		@@ -205,6 +207,42 @@ public final class JobSchedulerShellCommand extends ShellCommand {
		}
		}

		private int cancelJob(PrintWriter pw) throws Exception {
		checkPermission("cancel jobs");

		int userId = UserHandle.USER_SYSTEM;

		String opt;
		while ((opt = getNextOption()) != null) {
		switch (opt) {
		case "-u":
		case "--user":
		userId = UserHandle.parseUserArg(getNextArgRequired());
		break;

		default:
		pw.println("Error: unknown option '" + opt + "'");
		return -1;
		}
		}

		if (userId < 0) {
		pw.println("Error: must specify a concrete user ID");
		return -1;
		}

		final String pkgName = getNextArg();
		final String jobIdStr = getNextArg();
		final int jobId = jobIdStr != null ? Integer.parseInt(jobIdStr) : -1;

		final long ident = Binder.clearCallingIdentity();
		try {
		return mInternal.executeCancelCommand(pw, pkgName, userId, jobIdStr != null, jobId);
		} finally {
		Binder.restoreCallingIdentity(ident);
		}
		}

		private int monitorBattery(PrintWriter pw) throws Exception {
		checkPermission("change battery monitoring");
		String opt = getNextArgRequired();
		@@ -315,6 +353,12 @@ public final class JobSchedulerShellCommand extends ShellCommand {
		pw.println(" Options:");
		pw.println(" -u or --user: specify which user's job is to be run; the default is");
		pw.println(" all users");
		pw.println(" cancel [-u \| --user USER_ID] PACKAGE [JOB_ID]");
		pw.println(" Cancel a scheduled job. If a job ID is not supplied, all jobs scheduled");
		pw.println(" by that package will be canceled. USE WITH CAUTION.");
		pw.println(" Options:");
		pw.println(" -u or --user: specify which user's job is to be run; the default is");
		pw.println(" the primary or system user");
		pw.println(" monitor-battery [on\|off]");
		pw.println(" Control monitoring of all battery changes. Off by default. Turning");
		pw.println(" on makes get-battery-seq useful.");