Add helper classes to auto indent newlines for ostreams (e8ee5897) · Commits · e / os / android_packages_modules_Bluetooth

system/btif/avrcp/avrcp_service.cc

+6 −2

Original line number	Diff line number	Diff line
		@@ -414,9 +414,13 @@ void AvrcpService::DebugDump(int fd) {
		device_list.size());

		std::stringstream stream;
		{
		ScopedIndent indent(stream);
		for (auto device : device_list) {
		stream << *device << std::endl;
		}
		}

		dprintf(fd, "%s", stream.str().c_str());
		}

system/internal_include/bt_trace.h

+49 −0

Original line number	Diff line number	Diff line
		@@ -771,4 +771,53 @@ inline std::string& AppendField(std::string* p_result, bool append,
		return *p_result;
		}

		// This object puts the stream in a state where every time that a new line
		// occurs, the next line is indented a certain number of spaces. The stream is
		// reset to its previous state when the object is destroyed.
		class ScopedIndent {
		public:
		ScopedIndent(std::ostream& stream, int indent_size = DEFAULT_TAB)
		: indented_buf_(stream, indent_size) {
		old_stream_ = &stream;
		old_stream_buf_ = stream.rdbuf();
		stream.rdbuf(&indented_buf_);
		}

		~ScopedIndent() { old_stream_->rdbuf(old_stream_buf_); }

		static const size_t DEFAULT_TAB = 2;

		private:
		class IndentedStreamBuf : public std::streambuf {
		public:
		IndentedStreamBuf(std::ostream& stream, int indent_size)
		: wrapped_buf_(stream.rdbuf()),
		indent_size_(indent_size),
		indent_next_line_(true){};

		protected:
		virtual int overflow(int character) override {
		if (indent_next_line_ && character != '\n') {
		for (int i = 0; i < indent_size_; i++) wrapped_buf_->sputc(' ');
		}

		indent_next_line_ = false;
		if (character == '\n') {
		indent_next_line_ = true;
		}

		return wrapped_buf_->sputc(character);
		}

		private:
		std::streambuf* wrapped_buf_;
		int indent_size_;
		bool indent_next_line_;
		};

		std::ostream* old_stream_;
		std::streambuf* old_stream_buf_;
		IndentedStreamBuf indented_buf_;
		};

		#endif

system/profile/avrcp/device.cc

+19 −30

Original line number	Diff line number	Diff line
		@@ -1141,39 +1141,28 @@ static std::string volumeToStr(int8_t volume) {
		}

		std::ostream& operator<<(std::ostream& out, const Device& d) {
		out << " " << d.address_.ToString();
		out << d.address_.ToString();
		if (d.IsActive()) out << " <Active>";
		out << std::endl;

		ScopedIndent indent(out);
		out << "Current Volume: " << volumeToStr(d.volume_) << std::endl;
		out << "Current Browsed Player ID: " << d.curr_browsed_player_id_
		<< std::endl;
		out << " Registered Notifications: " << std::endl;
		if (d.track_changed_.first) {
		out << " Track Changed" << std::endl;
		}
		if (d.play_status_changed_.first) {
		out << " Play Status" << std::endl;
		}
		if (d.play_pos_changed_.first) {
		out << " Play Position" << std::endl;
		}
		if (d.now_playing_changed_.first) {
		out << " Now Playing" << std::endl;
		}
		if (d.addr_player_changed_.first) {
		out << " Addressed Player" << std::endl;
		out << "Registered Notifications:\n";
		{
		ScopedIndent indent(out);
		if (d.track_changed_.first) out << "Track Changed\n";
		if (d.play_status_changed_.first) out << "Play Status\n";
		if (d.play_pos_changed_.first) out << "Play Position\n";
		if (d.now_playing_changed_.first) out << "Now Playing\n";
		if (d.addr_player_changed_.first) out << "Addressed Player\n";
		if (d.avail_players_changed_.first) out << "Available Players\n";
		if (d.uids_changed_.first) out << "UIDs Changed\n";
		}
		if (d.avail_players_changed_.first) {
		out << " Available Players" << std::endl;
		}
		if (d.uids_changed_.first) {
		out << " UIDs Changed" << std::endl;
		}

		out << "Last Play State: " << d.last_play_status_.state << std::endl;
		out << " Last Song Sent ID: \"" << d.last_song_info_.media_id << "\""
		<< std::endl;
		out << " Current Folder: \"" << d.CurrentFolder() << "\"" << std::endl;
		out << "Last Song Sent ID: \"" << d.last_song_info_.media_id << "\"\n";
		out << "Current Folder: \"" << d.CurrentFolder() << "\"\n";
		out << "MTU Sizes: CTRL=" << d.ctrl_mtu_ << " BROWSE=" << d.browse_mtu_
		<< std::endl;
		// TODO (apanicke): Add supported features as well as media keys