From 19f4f86bfed21c5326ed2acebe1163f3a83e832b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 04:25:50 +0200 Subject: Adding upstream version 241. Signed-off-by: Daniel Baumann --- src/libsystemd/sd-bus/bus-error.h | 48 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/libsystemd/sd-bus/bus-error.h (limited to 'src/libsystemd/sd-bus/bus-error.h') diff --git a/src/libsystemd/sd-bus/bus-error.h b/src/libsystemd/sd-bus/bus-error.h new file mode 100644 index 0000000..a6523e5 --- /dev/null +++ b/src/libsystemd/sd-bus/bus-error.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include + +#include "sd-bus.h" + +#include "macro.h" + +bool bus_error_is_dirty(sd_bus_error *e); + +const char *bus_error_message(const sd_bus_error *e, int error); + +int bus_error_setfv(sd_bus_error *e, const char *name, const char *format, va_list ap) _printf_(3,0); +int bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) _printf_(3,0); + +#define BUS_ERROR_OOM SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NO_MEMORY, "Out of memory") +#define BUS_ERROR_FAILED SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FAILED, "Operation failed") + +/* + * There are two ways to register error maps with the error translation + * logic: by using BUS_ERROR_MAP_ELF_REGISTER, which however only + * works when linked into the same ELF module, or via + * sd_bus_error_add_map() which is the official, external API, that + * works from any module. + * + * Note that BUS_ERROR_MAP_ELF_REGISTER has to be used as decorator in + * the bus error table, and BUS_ERROR_MAP_ELF_USE has to be used at + * least once per compilation unit (i.e. per library), to ensure that + * the error map is really added to the final binary. + */ + +#define BUS_ERROR_MAP_ELF_REGISTER \ + _section_("SYSTEMD_BUS_ERROR_MAP") \ + _used_ \ + _alignptr_ \ + _variable_no_sanitize_address_ + +#define BUS_ERROR_MAP_ELF_USE(errors) \ + extern const sd_bus_error_map errors[]; \ + _used_ \ + static const sd_bus_error_map * const CONCATENATE(errors ## _copy_, __COUNTER__) = errors; + +/* We use something exotic as end marker, to ensure people build the + * maps using the macsd-ros. */ +#define BUS_ERROR_MAP_END_MARKER -'x' + +BUS_ERROR_MAP_ELF_USE(bus_standard_errors); -- cgit v1.2.3