Merge "libprocessgroup/tools: Add settaskprofile command-line tool" am:... (7fefa532) · Commits · e / os / android_system_core

libprocessgroup/tools/Android.bp

0 → 100644

+30 −0

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		// Copyright (C) 2021 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 {
		default_applicable_licenses: ["Android-Apache-2.0"],
		}

		cc_binary {
		name: "settaskprofile",
		cflags: [
		"-Wall",
		"-Werror",
		],

		srcs: ["settaskprofile.cpp"],
		shared_libs: [
		"libprocessgroup",
		],
		}

libprocessgroup/tools/settaskprofile.cpp

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+53 −0

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		/*
		* Copyright (C) 2021 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.
		*/

		#include <stdlib.h>

		#include <iostream>

		#include <processgroup/processgroup.h>

		[[noreturn]] static void usage(int exit_status) {
		std::cerr << "Usage: " << getprogname() << " <tid> <profile> [... profileN]" << std::endl
		<< " tid Thread ID to apply the profiles to." << std::endl
		<< " profile Name of the profile to apply." << std::endl
		<< "Applies listed profiles to the thread with specified ID." << std::endl
		<< "Profiles are applied in the order specified in the command line." << std::endl
		<< "If applying a profile fails, remaining profiles are ignored." << std::endl;
		exit(exit_status);
		}

		int main(int argc, char* argv[]) {
		if (argc < 3) {
		usage(EXIT_FAILURE);
		}

		int tid = atoi(argv[1]);
		if (tid == 0) {
		std::cerr << "Invalid thread id" << std::endl;
		exit(EXIT_FAILURE);
		}

		for (int i = 2; i < argc; i++) {
		if (!SetTaskProfiles(tid, {argv[i]})) {
		std::cerr << "Failed to apply " << argv[i] << " profile" << std::endl;
		exit(EXIT_FAILURE);
		}
		std::cout << "Profile " << argv[i] << " is applied successfully!" << std::endl;
		}

		return 0;
		}

shell_and_utilities/Android.bp

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		@@ -26,6 +26,7 @@ phony {
		"mkshrc",
		"newfs_msdos",
		"reboot",
		"settaskprofile",
		"sh",
		"simpleperf",
		"simpleperf_app_runner",