Notify the ART runtime when boot is complete. (6d0d7066) · Commits · e / os / android_frameworks_base

core/java/android/os/ZygoteProcess.java

+25 −0

Original line number	Diff line number	Diff line
		@@ -647,6 +647,31 @@ public class ZygoteProcess {
		}
		}

		/**
		* Notify the Zygote processes that boot completed.
		*/
		public void bootCompleted() {
		// Notify both the 32-bit and 64-bit zygote.
		if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
		bootCompleted(Build.SUPPORTED_32_BIT_ABIS[0]);
		}
		if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
		bootCompleted(Build.SUPPORTED_64_BIT_ABIS[0]);
		}
		}

		private void bootCompleted(String abi) {
		try {
		synchronized (mLock) {
		ZygoteState state = openZygoteSocketIfNeeded(abi);
		state.mZygoteOutputWriter.write("1\n--boot-completed\n");
		state.mZygoteOutputWriter.flush();
		}
		} catch (Exception ex) {
		throw new RuntimeException("Failed to inform zygote of boot_completed", ex);
		}
		}

		/**
		* Push hidden API blacklisting exemptions into the zygote process(es).
		*

+12 −1

Original line number	Diff line number	Diff line
		@@ -168,6 +168,11 @@ class ZygoteArguments {
		*/
		boolean mPidQuery;

		/**
		* Whether the current arguments constitute a notification that boot completed.
		*/
		boolean mBootCompleted;

		/**
		* Exemptions from API blacklisting. These are sent to the pre-forked zygote at boot time, or
		* when they change, via --set-api-blacklist-exemptions.
		@@ -330,6 +335,8 @@ class ZygoteArguments {
		mAbiListQuery = true;
		} else if (arg.equals("--get-pid")) {
		mPidQuery = true;
		} else if (arg.equals("--boot-completed")) {
		mBootCompleted = true;
		} else if (arg.startsWith("--instruction-set=")) {
		mInstructionSet = arg.substring(arg.indexOf('=') + 1);
		} else if (arg.startsWith("--app-data-dir=")) {
		@@ -364,7 +371,11 @@ class ZygoteArguments {
		}
		}

		if (mAbiListQuery \|\| mPidQuery) {
		if (mBootCompleted) {
		if (args.length - curArg > 0) {
		throw new IllegalArgumentException("Unexpected arguments after --boot-completed");
		}
		} else if (mAbiListQuery \|\| mPidQuery) {
		if (args.length - curArg > 0) {
		throw new IllegalArgumentException("Unexpected arguments after --query-abi-list.");
		}

+9 −0

Original line number	Diff line number	Diff line
		@@ -149,6 +149,11 @@ class ZygoteConnection {

		parsedArgs = new ZygoteArguments(args);

		if (parsedArgs.mBootCompleted) {
		handleBootCompleted();
		return null;
		}

		if (parsedArgs.mAbiListQuery) {
		handleAbiListQuery();
		return null;
		@@ -291,6 +296,10 @@ class ZygoteConnection {
		}
		}

		private void handleBootCompleted() {
		VMRuntime.bootCompleted();
		}

		/**
		* Preloads resources if the zygote is in lazily preload mode. Writes the result of the
		* preload operation; {@code 0} when a preload was initiated due to this request and {@code 1}

+4 −0

Original line number	Diff line number	Diff line
		@@ -7898,6 +7898,10 @@ public class ActivityManagerService extends IActivityManager.Stub
		}
		}

		// Let the ART runtime in zygote and system_server know that the boot completed.
		ZYGOTE_PROCESS.bootCompleted();
		VMRuntime.bootCompleted();

		IntentFilter pkgFilter = new IntentFilter();
		pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
		pkgFilter.addDataScheme("package");