Remove return value of Log_session::write

Fixes #3749

repos/os/src/app/dummy/main.cc

@@ -61,7 +61,7 @@ struct Dummy::Log_service
 				log("closing session with label ", _label);
 		}
 
-		size_t write(String const &string) override
+		void write(String const &string) override
 		{
 			/* strip known line delimiter from incoming message */
 			unsigned n = 0;
@@ -71,8 +71,6 @@ struct Dummy::Log_service
 			typedef Genode::String<100> Message;
 			Message const message("[", _label, "] ", Cstring(string.string(), n));
 			log(message);
-
-			return strlen(string.string());
 		}
 	};
 

repos/os/src/server/fs_log/session.h

@@ -76,13 +76,13 @@ class Fs_log::Session_component : public Genode::Rpc_object<Genode::Log_session>
 		 ** Log session **
 		 *****************/
 
-		Genode::size_t write(Log_session::String const &msg) override
+		void write(Log_session::String const &msg) override
 		{
 			using namespace Genode;
 
 			if (!msg.valid_string()) {
 				Genode::error("received corrupted string");
-				return 0;
+				return;
 			}
 
 			size_t msg_len = strlen(msg.string());
@@ -123,7 +123,6 @@ class Fs_log::Session_component : public Genode::Rpc_object<Genode::Log_session>
 			memcpy(buf, msg.string(), msg_len);
 
 			source.submit_packet(packet);
-			return msg_len;
 		}
 };
 

repos/os/src/server/terminal_log/main.cc

@@ -52,11 +52,11 @@ namespace Genode {
 			 * The following function's code is a modified variant of the one in:
 			 * 'base/src/core/include/log_session_component.h'
 			 */
-			size_t write(String const &string_buf) override
+			void write(String const &string_buf) override
 			{
 				if (!(string_buf.valid_string())) {
 					Genode::error("corrupted string");
-					return 0;
+					return;
 				}
 
 				char const *string = string_buf.string();
@@ -73,7 +73,7 @@ namespace Genode {
 				enum { ESC = 27 };
 				if ((string[0] == ESC) && (len == 5) && (string[4] == '\n')) {
 					_terminal.write(string, len - 1);
-					return len;
+					return;
 				}
 
 				_terminal.write(_label, strlen(_label));
@@ -85,8 +85,6 @@ namespace Genode {
 
 				/* carriage-return as expected by hardware terminals on newline */
 				_terminal.write("\r", 1);
-
-				return len;
 			}
 	};
 

repos/os/src/test/init/main.cc

@@ -138,7 +138,7 @@ class Test::Log_session_component : public Rpc_object<Log_session>
 			_label(label), _handler(handler)
 		{ }
 
-		size_t write(String const &string) override
+		void write(String const &string) override
 		{
 			/* strip known line delimiter from incoming message */
 			unsigned n = 0;
@@ -153,8 +153,6 @@ class Test::Log_session_component : public Rpc_object<Log_session>
 				_handler.handle_log_message(message);
 
 			log(message, " (", result, ")");
-
-			return strlen(string.string());
 		}
 };
 

repos/os/src/test/sandbox/main.cc

@@ -31,13 +31,11 @@ struct Test::Log_session_component : Session_object<Log_session>
 	template <typename... ARGS>
 	Log_session_component(ARGS &&... args) : Session_object(args...) { }
 
-	size_t write(String const &msg) override
+	void write(String const &msg) override
 	{
 		/* omit line break and zero termination supplied by 'msg' */
 		if (msg.size() > 1)
 			log("local LOG service: ", Cstring(msg.string(), msg.size() - 2));
-
-		return 0;
 	}
 };