Merge "init: add exec_background command" (424ed42f) · Commits · e / os / android_system_core

init/README.md

+5 −0

Original line number	Diff line number	Diff line
		@@ -381,6 +381,11 @@ Commands
		within _argument_.
		Init halts executing commands until the forked process exits.

		`exec_background [ <seclabel> [ <user> [ <group>\* ] ] ] -- <command> [ <argument>\* ]`
		> Fork and execute command with the given arguments. This is handled similarly
		to the `exec` command. The difference is that init does not halt executing
		commands until the process exits for `exec_background`.

		`exec_start <service>`
		> Start a given service and halt the processing of additional init commands
		until it returns. The command functions similarly to the `exec` command,

+14 −0

Original line number	Diff line number	Diff line
		@@ -148,6 +148,19 @@ static Result<Success> do_exec(const std::vector<std::string>& args) {
		return Success();
		}

		static Result<Success> do_exec_background(const std::vector<std::string>& args) {
		auto service = Service::MakeTemporaryOneshotService(args);
		if (!service) {
		return Error() << "Could not create exec background service";
		}
		if (auto result = service->Start(); !result) {
		return Error() << "Could not start exec background service: " << result.error();
		}

		ServiceList::GetInstance().AddService(std::move(service));
		return Success();
		}

		static Result<Success> do_exec_start(const std::vector<std::string>& args) {
		Service* service = ServiceList::GetInstance().FindService(args[1]);
		if (!service) {
		@@ -959,6 +972,7 @@ const BuiltinFunctionMap::Map& BuiltinFunctionMap::map() const {
		{"domainname", {1, 1, do_domainname}},
		{"enable", {1, 1, do_enable}},
		{"exec", {1, kMax, do_exec}},
		{"exec_background", {1, kMax, do_exec_background}},
		{"exec_start", {1, 1, do_exec_start}},
		{"export", {2, 2, do_export}},
		{"hostname", {1, 1, do_hostname}},