after log error, reset errno

platform/src/tcp_stream.cpp

@@ -536,6 +536,8 @@ static void __stream_bev_passthrough_eventcb(struct bufferevent * bev, short eve
 			{
 				TFE_LOG_INFO(g_default_logger, "%s %s connection error, errno = %d, %s",
 							 _stream->str_stream_addr, str_conn_dir, errno, strerror(errno));
+				/* after log, reset errno */
+				errno = 0;
 			}
 		}
 
@@ -830,6 +832,8 @@ static void __stream_bev_eventcb(struct bufferevent * bev, short events, void *
 			{
 				TFE_LOG_INFO(g_default_logger, "%s %s connection error, errno = %d, %s",
 					_stream->str_stream_addr, str_conn_dir, errno, strerror(errno));
+				/* after log, reset errno */
+				errno = 0;
 			}
 		}
 		else if (events & BEV_EVENT_EOF && rx_offset == 0 && _stream->session_type == STREAM_PROTO_SSL)
@@ -1211,6 +1215,8 @@ int __fd_ttl_option_setup(struct tfe_stream_private * _stream, evutil_socket_t f
 	if (getsockname(fd, (struct sockaddr *) &sk_storage, &sk_storage_len) < 0)
 	{
 		TFE_STREAM_LOG_ERROR(_stream, "getsockname(fd = %d) failed: %s", fd, strerror(errno));
+		/* after log, reset errno */
+		errno = 0;
 		return -1;
 	}
 
@@ -1234,7 +1240,9 @@ int __fd_ttl_option_setup(struct tfe_stream_private * _stream, evutil_socket_t f
 	if (ret < 0)
 	{
 		TFE_STREAM_LOG_ERROR(_stream, "setsockopt(ttl = %u, fd = %d, family = %s) failed: %s",
-			__ttl, fd, __str_family, strerror(errno));
+			__ttl, fd, __str_family, strerror(errno));	
+		/* after log, reset errno */
+		errno = 0;
 		return -2;
 	}
 
@@ -1257,6 +1265,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(SO_RCVBUF, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->sz_rcv_buffer, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1267,6 +1277,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(SO_SNDBUF, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->sz_snd_buffer, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1277,6 +1289,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(SO_KEEPALIVE, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->so_keepalive, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1286,6 +1300,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(TCP_KEEPCNT, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->tcp_keepcnt, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1295,6 +1311,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(TCP_KEEPINTVL, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->tcp_keepintvl, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1304,6 +1322,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(TCP_KEEPIDLE, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->tcp_keepidle, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}
 
@@ -1314,6 +1334,8 @@ void __stream_fd_option_setup(struct tfe_stream_private * _stream, evutil_socket
 		{
 			TFE_LOG_ERROR(g_default_logger, "%s: setsockopt(TCP_USER_TIMEOUT, %d) failed, ignored: %s",
 				stream->str_stream_info, tcp_options->tcp_user_timeout, strerror(errno));
+			/* after log, reset errno */
+			errno = 0;
 		}
 	}