odissey: log detailed server error messages

lib/shapito

@@ -1 +1 @@
-Subproject commit 3bcc0a82f93c8814c7f7b0f2eb3afecf48384278
+Subproject commit 16878a14c0b54e8bf98bf1fa20f6a55b1434ce22

src/od_auth.c

@@ -43,6 +43,7 @@
 #include "od_pooler.h"
 #include "od_relay.h"
 #include "od_frontend.h"
+#include "od_backend.h"
 #include "od_auth.h"
 
 static inline int
@@ -440,8 +441,8 @@ int od_auth_backend(od_server_t *server)
 			}
 			return 0;
 		case 'E':
-			od_error_server(&instance->log, server->id, "auth",
-			                "authentication error");
+			od_backend_error(server, "auth", stream->s,
+			                 so_stream_used(stream));
 			return -1;
 		}
 	}

src/od_backend.c

@@ -109,6 +109,24 @@ od_backend_startup(od_server_t *server)
 	return 0;
 }
 
+void od_backend_error(od_server_t *server, char *state, uint8_t *data, int size)
+{
+	od_instance_t *instance = server->system->instance;
+	so_feerror_t error;
+	int rc;
+	rc = so_feread_error(&error, data, size);
+	if (rc == -1) {
+		od_error_server(&instance->log, server->id, state,
+		                "failed to parse error message from server");
+		return;
+	}
+	od_error_server(&instance->log, server->id, state,
+	                "%s %s %s",
+	                error.severity,
+	                error.code,
+	                error.message);
+}
+
 int od_backend_ready(od_server_t *server, uint8_t *data, int size)
 {
 	int status;
@@ -151,6 +169,11 @@ od_backend_ready_wait(od_server_t *server, char *procedure, int time_ms)
 		uint8_t type = stream->s[rc];
 		od_debug_server(&instance->log, server->id, procedure,
 		                "%c", type);
+		/* ErrorResponse */
+		if (type == 'E') {
+			od_backend_error(server, procedure, stream->s,
+			                 so_stream_used(stream));
+		}
 		/* ReadyForQuery */
 		if (type == 'Z') {
 			od_backend_ready(server, stream->s + rc,
@@ -204,11 +227,13 @@ od_backend_setup(od_server_t *server)
 		/* ParameterStatus */
 		case 'S':
 			break;
-		/* NoticeResponce */
+		/* NoticeResponse */
 		case 'N':
 			break;
-		/* ErrorResponce */
+		/* ErrorResponse */
 		case 'E':
+			od_backend_error(server, "setup", stream->s,
+			                 so_stream_used(stream));
 			return -1;
 		default:
 			od_debug_server(&instance->log, server->id, "setup",

src/od_backend.h

@@ -13,6 +13,7 @@ od_backend_new(od_router_t*, od_route_t*);
 void od_backend_close(od_server_t*);
 int  od_backend_terminate(od_server_t*);
 int  od_backend_reset(od_server_t*);
+void od_backend_error(od_server_t*, char*, uint8_t*, int);
 int  od_backend_ready(od_server_t*, uint8_t*, int);
 int  od_backend_configure(od_server_t*, so_bestartup_t*);
 int  od_backend_discard(od_server_t*);

src/od_frontend.c

@@ -344,6 +344,13 @@ od_frontend_main(od_client_t *client)
 			od_debug_server(&instance->log, server->id, NULL,
 			                "%c", type);
 
+			/* ErrorResponse */
+			if (type == 'E') {
+				od_backend_error(server, NULL,
+				                 stream->s + rc,
+				                 so_stream_used(stream) - rc);
+			}
+
 			/* ReadyForQuery */
 			if (type == 'Z') {
 				rc = od_backend_ready(server, stream->s + rc,