Merge "dmctl: suspend and resume devices" (e1d4e390) · Commits · e / os / android_system_core

fs_mgr/tools/dmctl.cpp

+32 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,8 @@ static int Usage(void) {
		std::cerr << " list <devices \| targets> [-v]" << std::endl;
		std::cerr << " getpath <dm-name>" << std::endl;
		std::cerr << " status <dm-name>" << std::endl;
		std::cerr << " resume <dm-name>" << std::endl;
		std::cerr << " suspend <dm-name>" << std::endl;
		std::cerr << " table <dm-name>" << std::endl;
		std::cerr << " help" << std::endl;
		std::cerr << std::endl;
		@@ -399,6 +401,34 @@ static int StatusCmdHandler(int argc, char** argv) {
		return DumpTable("status", argc, argv);
		}

		static int ResumeCmdHandler(int argc, char** argv) {
		if (argc != 1) {
		std::cerr << "Invalid arguments, see \'dmctl help\'" << std::endl;
		return -EINVAL;
		}

		DeviceMapper& dm = DeviceMapper::Instance();
		if (!dm.ChangeState(argv[0], DmDeviceState::ACTIVE)) {
		std::cerr << "Could not resume device \"" << argv[0] << "\"." << std::endl;
		return -EINVAL;
		}
		return 0;
		}

		static int SuspendCmdHandler(int argc, char** argv) {
		if (argc != 1) {
		std::cerr << "Invalid arguments, see \'dmctl help\'" << std::endl;
		return -EINVAL;
		}

		DeviceMapper& dm = DeviceMapper::Instance();
		if (!dm.ChangeState(argv[0], DmDeviceState::SUSPENDED)) {
		std::cerr << "Could not suspend device \"" << argv[0] << "\"." << std::endl;
		return -EINVAL;
		}
		return 0;
		}

		static std::map<std::string, std::function<int(int, char**)>> cmdmap = {
		// clang-format off
		{"create", DmCreateCmdHandler},
		@@ -408,6 +438,8 @@ static std::map<std::string, std::function<int(int, char**)>> cmdmap = {
		{"getpath", GetPathCmdHandler},
		{"table", TableCmdHandler},
		{"status", StatusCmdHandler},
		{"resume", ResumeCmdHandler},
		{"suspend", SuspendCmdHandler},
		// clang-format on
		};