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Add "am capabilities" for tools probling

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There is no way to know which command/flags are supported in am.
This CL adds a "capability" command which allows to probe
programatically.

Test: NA
Bug: 265460189
Change-Id: If50269251a6907968e7c8afe10bf873f25338b91
This commit is contained in:
Fabien Sanglard
2023-01-04 02:53:24 +00:00
parent 12c255e2cd
commit fbfdc1febf
3 changed files with 63 additions and 0 deletions
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1
proto/src/OWNERS
View File

@@ -3,3 +3,4 @@ per-file wifi.proto = file:/wifi/OWNERS
per-file camera.proto = file:/services/core/java/com/android/server/camera/OWNERS
per-file system_messages.proto = file:/core/res/OWNERS
per-file altitude.proto = file:/location/OWNERS
per-file am_capabilities.proto = rpaquay@google.com, sanglardf@google.com

12
proto/src/am_capabilities.proto Normal file
View File

@@ -0,0 +1,12 @@
syntax = "proto3";
package com.android.server.am;
option java_multiple_files = true;
message Capability {
string name = 1;
}
message Capabilities {
repeated Capability values = 1;
}

50
services/core/java/com/android/server/am/ActivityManagerShellCommand.java
View File

@@ -114,6 +114,8 @@ import android.window.SplashScreen;
import com.android.internal.compat.CompatibilityChangeConfig;
import com.android.internal.util.MemInfoReader;
import com.android.server.am.LowMemDetector.MemFactor;
import com.android.server.am.nano.Capabilities;
import com.android.server.am.nano.Capability;
import com.android.server.compat.PlatformCompat;
import com.android.server.utils.Slogf;
@@ -197,6 +199,9 @@ final class ActivityManagerShellCommand extends ShellCommand {
final boolean mDumping;
private static final String[] CAPABILITIES = {"start.suspend"};
ActivityManagerShellCommand(ActivityManagerService service, boolean dumping) {
mInterface = service;
mTaskInterface = service.mActivityTaskManager;
@@ -378,6 +383,8 @@ final class ActivityManagerShellCommand extends ShellCommand {
return runListDisplaysForStartingUsers(pw);
case "set-foreground-service-delegate":
return runSetForegroundServiceDelegate(pw);
case "capabilities":
return runCapabilities(pw);
default:
return handleDefaultCommands(cmd);
}
@@ -387,6 +394,46 @@ final class ActivityManagerShellCommand extends ShellCommand {
return -1;
}
int runCapabilities(PrintWriter pw) throws RemoteException {
final PrintWriter err = getErrPrintWriter();
boolean outputAsProtobuf = false;
String opt;
while ((opt = getNextOption()) != null) {
if (opt.equals("--protobuf")) {
outputAsProtobuf = true;
} else {
err.println("Error: Unknown option: " + opt);
return -1;
}
}
if (outputAsProtobuf) {
Capabilities capabilities = new Capabilities();
capabilities.values = new Capability[CAPABILITIES.length];
for (int i = 0; i < CAPABILITIES.length; i++) {
Capability cap = new Capability();
cap.name = CAPABILITIES[i];
capabilities.values[i] = cap;
}
try {
getRawOutputStream().write(Capabilities.toByteArray(capabilities));
} catch (IOException e) {
pw.println("Error while serializing capabilities protobuffer");
}
} else {
// Unfortunately we don't have protobuf text format capabilities here.
// Fallback to line separated list instead for text parser.
pw.println("Format: 1");
for (String capability : CAPABILITIES) {
pw.println(capability);
}
}
return 0;
}
private Intent makeIntent(int defUser) throws URISyntaxException {
mStartFlags = 0;
mWaitOption = false;
@@ -4135,6 +4182,9 @@ final class ActivityManagerShellCommand extends ShellCommand {
pw.println(" Start ignoring delivery group policy set for a broadcast action");
pw.println(" clear-ignore-delivery-group-policy <ACTION>");
pw.println(" Stop ignoring delivery group policy set for a broadcast action");
pw.println(" capabilities [--protobuf]");
pw.println(" Output am supported features (text format). Options are:");
pw.println(" --protobuf: format output using protobuffer");
Intent.printIntentArgsHelp(pw, "");
}
}