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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.art;
import static com.android.server.art.model.ArtFlags.PriorityClassApi;
import android.annotation.NonNull;
import android.annotation.StringDef;
import android.annotation.SystemApi;
import android.os.Build;
import android.os.SystemProperties;
import android.text.TextUtils;
import androidx.annotation.RequiresApi;
import com.android.server.art.model.ArtFlags;
import com.android.server.pm.PackageManagerLocal;
import dalvik.system.DexFile;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Set;
/**
* Maps a compilation reason to a compiler filter and a priority class.
*
* @hide
*/
@SystemApi(client = SystemApi.Client.SYSTEM_SERVER)
@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
public class ReasonMapping {
private ReasonMapping() {}
// Keep this in sync with `ArtShellCommand.printHelp` except for 'inactive'.
/** Dexopting apps on the first boot after flashing or factory resetting the device. */
public static final String REASON_FIRST_BOOT = "first-boot";
/** Dexopting apps on the next boot after an OTA. */
public static final String REASON_BOOT_AFTER_OTA = "boot-after-ota";
/** Dexopting apps on the next boot after a mainline update. */
public static final String REASON_BOOT_AFTER_MAINLINE_UPDATE = "boot-after-mainline-update";
/** Installing an app after user presses the "install"/"update" button. */
public static final String REASON_INSTALL = "install";
/** Dexopting apps in the background. */
public static final String REASON_BG_DEXOPT = "bg-dexopt";
/** Invoked by cmdline. */
public static final String REASON_CMDLINE = "cmdline";
/** Downgrading the compiler filter when an app is not used for a long time. */
public static final String REASON_INACTIVE = "inactive";
// Reasons for Play Install Hints (go/install-hints).
public static final String REASON_INSTALL_FAST = "install-fast";
public static final String REASON_INSTALL_BULK = "install-bulk";
public static final String REASON_INSTALL_BULK_SECONDARY = "install-bulk-secondary";
public static final String REASON_INSTALL_BULK_DOWNGRADED = "install-bulk-downgraded";
public static final String REASON_INSTALL_BULK_SECONDARY_DOWNGRADED =
"install-bulk-secondary-downgraded";
/** @hide */
public static final Set<String> REASONS_FOR_INSTALL = Set.of(REASON_INSTALL,
REASON_INSTALL_FAST, REASON_INSTALL_BULK, REASON_INSTALL_BULK_SECONDARY,
REASON_INSTALL_BULK_DOWNGRADED, REASON_INSTALL_BULK_SECONDARY_DOWNGRADED);
// Keep this in sync with `ArtShellCommand.printHelp`.
/** @hide */
public static final Set<String> BATCH_DEXOPT_REASONS = Set.of(REASON_FIRST_BOOT,
REASON_BOOT_AFTER_OTA, REASON_BOOT_AFTER_MAINLINE_UPDATE, REASON_BG_DEXOPT);
/**
* Reasons for {@link ArtManagerLocal#dexoptPackages}.
*
* @hide
*/
// clang-format off
@StringDef(prefix = "REASON_", value = {
REASON_FIRST_BOOT,
REASON_BOOT_AFTER_OTA,
REASON_BOOT_AFTER_MAINLINE_UPDATE,
REASON_BG_DEXOPT,
})
// clang-format on
@Retention(RetentionPolicy.SOURCE)
public @interface BatchDexoptReason {}
/**
* Reasons for {@link ArtManagerLocal#onBoot(String, Executor, Consumer<OperationProgress>)}.
*
* @hide
*/
// clang-format off
@StringDef(prefix = "REASON_", value = {
REASON_FIRST_BOOT,
REASON_BOOT_AFTER_OTA,
REASON_BOOT_AFTER_MAINLINE_UPDATE,
})
// clang-format on
@Retention(RetentionPolicy.SOURCE)
public @interface BootReason {}
/**
* Loads the compiler filter from the system property for the given reason and checks for
* validity.
*
* @throws IllegalArgumentException if the reason is invalid
* @throws IllegalStateException if the system property value is invalid
*
* @hide
*/
@NonNull
public static String getCompilerFilterForReason(@NonNull String reason) {
String value = SystemProperties.get("pm.dexopt." + reason);
if (TextUtils.isEmpty(value)) {
throw new IllegalArgumentException("No compiler filter for reason '" + reason + "'");
}
if (!Utils.isValidArtServiceCompilerFilter(value)) {
throw new IllegalStateException(
"Got invalid compiler filter '" + value + "' for reason '" + reason + "'");
}
return value;
}
/**
* Loads the compiler filter from the system property for:
* - shared libraries
* - apps used by other apps without a dex metadata file
*
* @throws IllegalStateException if the system property value is invalid
*
* @hide
*/
@NonNull
public static String getCompilerFilterForShared() {
// "shared" is technically not a compilation reason, but the compiler filter is defined as a
// system property as if "shared" is a reason.
String value = getCompilerFilterForReason("shared");
if (DexFile.isProfileGuidedCompilerFilter(value)) {
throw new IllegalStateException(
"Compiler filter for 'shared' must not be profile guided, got '" + value + "'");
}
return value;
}
/**
* Returns the priority for the given reason.
*
* @throws IllegalArgumentException if the reason is invalid
* @see PriorityClassApi
*
* @hide
*/
public static @PriorityClassApi byte getPriorityClassForReason(@NonNull String reason) {
switch (reason) {
case REASON_FIRST_BOOT:
case REASON_BOOT_AFTER_OTA:
case REASON_BOOT_AFTER_MAINLINE_UPDATE:
return ArtFlags.PRIORITY_BOOT;
case REASON_INSTALL_FAST:
return ArtFlags.PRIORITY_INTERACTIVE_FAST;
case REASON_INSTALL:
case REASON_CMDLINE:
return ArtFlags.PRIORITY_INTERACTIVE;
case REASON_BG_DEXOPT:
case REASON_INACTIVE:
case REASON_INSTALL_BULK:
case REASON_INSTALL_BULK_SECONDARY:
case REASON_INSTALL_BULK_DOWNGRADED:
case REASON_INSTALL_BULK_SECONDARY_DOWNGRADED:
return ArtFlags.PRIORITY_BACKGROUND;
default:
throw new IllegalArgumentException("No priority class for reason '" + reason + "'");
}
}
/**
* Loads the concurrency from the system property, for batch dexopt ({@link
* ArtManagerLocal#dexoptPackages}), or 1 if the system property is not found or cannot be
* parsed.
*
* @hide
*/
public static int getConcurrencyForReason(@NonNull @BatchDexoptReason String reason) {
return SystemProperties.getInt("persist.device_config.runtime." + reason + "_concurrency",
SystemProperties.getInt("pm.dexopt." + reason + ".concurrency", 1 /* def */));
}
}
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