Add more logs for writing failures. (e5a1556d) · Commits · e / os / android_system_core

libappfuse/FuseBridgeLoop.cc

+13 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,12 @@ void GetObservedEvents(FuseBridgeState state, int* device_events, int* proxy_eve
		return;
		}
		}

		void LogResponseError(const std::string& message, const FuseResponse& response) {
		LOG(ERROR) << message << ": header.len=" << response.header.len
		<< " header.error=" << response.header.error
		<< " header.unique=" << response.header.unique;
		}
		}

		class FuseBridgeEntry {
		@@ -135,6 +141,7 @@ class FuseBridgeEntry {
		}

		if (!buffer_.response.Write(device_fd_)) {
		LogResponseError("Failed to write a reply from proxy to device", buffer_.response);
		return FuseBridgeState::kClosing;
		}

		@@ -200,6 +207,7 @@ class FuseBridgeEntry {
		}

		if (!buffer_.response.Write(device_fd_)) {
		LogResponseError("Failed to write a response to device", buffer_.response);
		return FuseBridgeState::kClosing;
		}

		@@ -215,6 +223,11 @@ class FuseBridgeEntry {
		case ResultOrAgain::kSuccess:
		return FuseBridgeState::kWaitToReadEither;
		case ResultOrAgain::kFailure:
		LOG(ERROR) << "Failed to write a request to proxy:"
		<< " header.len=" << buffer_.request.header.len
		<< " header.opcode=" << buffer_.request.header.opcode
		<< " header.unique=" << buffer_.request.header.unique
		<< " header.nodeid=" << buffer_.request.header.nodeid;
		return FuseBridgeState::kClosing;
		case ResultOrAgain::kAgain:
		return FuseBridgeState::kWaitToWriteProxy;

+4 −1

Original line number	Diff line number	Diff line
		@@ -115,7 +115,10 @@ ResultOrAgain WriteInternal(const FuseMessage<T>* self, int fd, int sockflag, co
		case EAGAIN:
		return ResultOrAgain::kAgain;
		default:
		PLOG(ERROR) << "Failed to write a FUSE message";
		PLOG(ERROR) << "Failed to write a FUSE message: "
		<< "fd=" << fd << " "
		<< "sockflag=" << sockflag << " "
		<< "data=" << data;
		return ResultOrAgain::kFailure;
		}
		}