#include "sd-bus.h"
#include "bus-error.h"
-#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")
-
-SD_BUS_ERROR_MAPPING(sd_bus_standard) = {
- {"org.freedesktop.DBus.Error.Failed", EACCES},
- {"org.freedesktop.DBus.Error.NoMemory", ENOMEM},
- {"org.freedesktop.DBus.Error.ServiceUnknown", EHOSTUNREACH},
- {"org.freedesktop.DBus.Error.NameHasNoOwner", ENXIO},
- {"org.freedesktop.DBus.Error.NoReply", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.IOError", EIO},
- {"org.freedesktop.DBus.Error.BadAddress", EADDRNOTAVAIL},
- {"org.freedesktop.DBus.Error.NotSupported", ENOTSUP},
- {"org.freedesktop.DBus.Error.LimitsExceeded", ENOBUFS},
- {"org.freedesktop.DBus.Error.AccessDenied", EACCES},
- {"org.freedesktop.DBus.Error.AuthFailed", EACCES},
- {"org.freedesktop.DBus.Error.InteractiveAuthorizationRequired", EACCES},
- {"org.freedesktop.DBus.Error.NoServer", EHOSTDOWN},
- {"org.freedesktop.DBus.Error.Timeout", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.NoNetwork", ENONET},
- {"org.freedesktop.DBus.Error.AddressInUse", EADDRINUSE},
- {"org.freedesktop.DBus.Error.Disconnected", ECONNRESET},
- {"org.freedesktop.DBus.Error.InvalidArgs", EINVAL},
- {"org.freedesktop.DBus.Error.FileNotFound", ENOENT},
- {"org.freedesktop.DBus.Error.FileExists", EEXIST},
- {"org.freedesktop.DBus.Error.UnknownMethod", EBADR},
- {"org.freedesktop.DBus.Error.UnknownObject", EBADR},
- {"org.freedesktop.DBus.Error.UnknownInterface", EBADR},
- {"org.freedesktop.DBus.Error.UnknownProperty", EBADR},
- {"org.freedesktop.DBus.Error.PropertyReadOnly", EROFS},
- {"org.freedesktop.DBus.Error.UnixProcessIdUnknown", ESRCH},
- {"org.freedesktop.DBus.Error.InvalidSignature", EINVAL},
- {"org.freedesktop.DBus.Error.InconsistentMessage", EBADMSG},
-
- {"org.freedesktop.DBus.Error.TimedOut", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.MatchRuleInvalid", EINVAL},
- {"org.freedesktop.DBus.Error.InvalidFileContent", EINVAL},
- {"org.freedesktop.DBus.Error.MatchRuleNotFound", ENOENT},
- {"org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown", ESRCH},
- {"org.freedesktop.DBus.Error.ObjectPathInUse", EBUSY},
+BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map standard_errors[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Failed", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoMemory", ENOMEM),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.ServiceUnknown", EHOSTUNREACH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NameHasNoOwner", ENXIO),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoReply", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.IOError", EIO),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.BadAddress", EADDRNOTAVAIL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NotSupported", ENOTSUP),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.LimitsExceeded", ENOBUFS),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AccessDenied", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AuthFailed", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InteractiveAuthorizationRequired", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoServer", EHOSTDOWN),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Timeout", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoNetwork", ENONET),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AddressInUse", EADDRINUSE),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Disconnected", ECONNRESET),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidArgs", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.FileNotFound", ENOENT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.FileExists", EEXIST),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownMethod", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownObject", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownInterface", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownProperty", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.PropertyReadOnly", EROFS),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnixProcessIdUnknown", ESRCH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidSignature", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InconsistentMessage", EBADMSG),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.TimedOut", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.MatchRuleInvalid", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidFileContent", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.MatchRuleNotFound", ENOENT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown", ESRCH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.ObjectPathInUse", EBUSY),
+ SD_BUS_ERROR_MAP_END
};
-extern const sd_bus_name_error_mapping __start_sd_bus_errnomap[];
-extern const sd_bus_name_error_mapping __stop_sd_bus_errnomap[];
+/* GCC maps this magically to the beginning and end of the BUS_ERROR_MAP section */
+extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
+extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
-static int bus_error_mapping_lookup(const char *name, size_t len) {
- const sd_bus_name_error_mapping *m;
-
- for (m = __start_sd_bus_errnomap; m < __stop_sd_bus_errnomap; m++)
- if (m->name && strneq(m->name, name, len))
- return m->code;
-
- return EIO;
-}
+/* Additional maps registered with sd_bus_error_add_map() are in this
+ * NULL terminated array */
+static const sd_bus_error_map **additional_error_maps = NULL;
static int bus_error_name_to_errno(const char *name) {
+ const sd_bus_error_map **map, *m;
const char *p;
int r;
return r;
}
- return bus_error_mapping_lookup(name, strlen(name));
+ if (additional_error_maps) {
+ for (map = additional_error_maps; *map; map++) {
+ for (m = *map;; m++) {
+ /* For additional error maps the end marker is actually the end marker */
+ if (m->code == BUS_ERROR_MAP_END_MARKER)
+ break;
+
+ if (streq(m->name, name))
+ return m->code;
+ }
+ }
+ }
+
+ m = __start_BUS_ERROR_MAP;
+ while (m < __stop_BUS_ERROR_MAP) {
+ /* For magic ELF error maps, the end marker might
+ * appear in the middle of things, since multiple maps
+ * might appear in the same section. Hence, let's skip
+ * over it, but realign the pointer to the netx 8byte
+ * boundary, which is the selected alignment for the
+ * arrays. */
+ if (m->code == BUS_ERROR_MAP_END_MARKER) {
+ m = ALIGN8_PTR(m+1);
+ continue;
+ }
+
+ if (streq(m->name, name))
+ return m->code;
+
+ m++;
+ }
+
+ return EIO;
}
static sd_bus_error errno_to_bus_error_const(int error) {
return strerror(error);
}
+
+_public_ int sd_bus_error_add_map(const sd_bus_error_map *map) {
+ const sd_bus_error_map **maps = NULL;
+ unsigned n = 0;
+
+ assert_return(map, -EINVAL);
+
+ if (additional_error_maps) {
+ for (;; n++) {
+ if (additional_error_maps[n] == NULL)
+ break;
+
+ if (additional_error_maps[n] == map)
+ return 0;
+ }
+ }
+
+ maps = realloc_multiply(additional_error_maps, sizeof(struct sd_bus_error_map*), n + 2);
+ if (!maps)
+ return -ENOMEM;
+
+
+ maps[n] = map;
+ maps[n+1] = NULL;
+
+ additional_error_maps = maps;
+ return 1;
+}
#include "sd-bus.h"
#include "macro.h"
-struct name_error_mapping {
- const char* name;
- int code;
-};
-typedef struct name_error_mapping name_error_mapping;
-
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 \
+ __attribute__ ((__section__("BUS_ERROR_MAP"))) \
+ __attribute__ ((__used__)) \
+ __attribute__ ((aligned(8)))
+
+#define BUS_ERROR_MAP_ELF_USE(errors) \
+ extern const sd_bus_error_map errors[]; \
+ __attribute__ ((used)) static const sd_bus_error_map * 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(standard_errors);
#include "sd-bus.h"
#include "bus-error.h"
#include "bus-util.h"
+#include "errno-list.h"
+#include "bus-errors.h"
static void test_error(void) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
assert_se(sd_bus_error_is_set(&error));
}
-extern const sd_bus_name_error_mapping __start_sd_bus_errnomap[];
-extern const sd_bus_name_error_mapping __stop_sd_bus_errnomap[];
+extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
+extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
static void dump_mapping_table(void) {
- const sd_bus_name_error_mapping *m;
+ const sd_bus_error_map *m;
printf("----- errno mappings ------\n");
- for (m = __start_sd_bus_errnomap; m < __stop_sd_bus_errnomap; m++)
- printf("%s -> %d\n", m->name, m->code);
+ m = __start_BUS_ERROR_MAP;
+ while (m < __stop_BUS_ERROR_MAP) {
+
+ if (m->code == BUS_ERROR_MAP_END_MARKER) {
+ m = ALIGN8_PTR(m+1);
+ continue;
+ }
+
+ printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
+ m ++;
+ }
printf("---------------------------\n");
}
assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
}
-SD_BUS_ERROR_MAPPING(test) = {
- {"org.freedesktop.custom-dbus-error", 5},
- {"org.freedesktop.custom-dbus-error-2", 52},
+BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error", 5),
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-2", 52),
+ SD_BUS_ERROR_MAP_END
+};
+
+BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors2[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-3", 33),
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-4", 44),
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-33", 333),
+ SD_BUS_ERROR_MAP_END
+};
+
+static const sd_bus_error_map test_errors3[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-88", 888),
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-99", 999),
+ SD_BUS_ERROR_MAP_END
+};
+
+static const sd_bus_error_map test_errors4[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-77", 777),
+ SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-78", 778),
+ SD_BUS_ERROR_MAP_END
};
static void test_errno_mapping_custom(void) {
assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-33", NULL) == -333);
+
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -EIO);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -EIO);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -EIO);
+
+ assert_se(sd_bus_error_add_map(test_errors3) > 0);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -888);
+ assert_se(sd_bus_error_add_map(test_errors4) > 0);
+ assert_se(sd_bus_error_add_map(test_errors4) == 0);
+ assert_se(sd_bus_error_add_map(test_errors3) == 0);
+
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -999);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -777);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-78", NULL) == -778);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
+ assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-y", NULL) == -EIO);
+
+ assert_se(sd_bus_error_set(NULL, BUS_ERROR_NO_SUCH_UNIT, NULL) == -ENOENT);
}
int main(int argc, char *argv[]) {
#include <errno.h>
#include "sd-bus.h"
+#include "bus-error.h"
#include "bus-errors.h"
-SD_BUS_ERROR_MAPPING(systemd_shared) = {
- {BUS_ERROR_NO_SUCH_UNIT, ENOENT},
- {BUS_ERROR_NO_UNIT_FOR_PID, ESRCH},
- {BUS_ERROR_UNIT_EXISTS, EEXIST},
- {BUS_ERROR_LOAD_FAILED, EIO},
- {BUS_ERROR_JOB_FAILED, EREMOTEIO},
- {BUS_ERROR_NO_SUCH_JOB, ENOENT},
- {BUS_ERROR_NOT_SUBSCRIBED, EINVAL},
- {BUS_ERROR_ALREADY_SUBSCRIBED, EINVAL},
- {BUS_ERROR_ONLY_BY_DEPENDENCY, EINVAL},
- {BUS_ERROR_TRANSACTION_JOBS_CONFLICTING, EDEADLOCK},
- {BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, EDEADLOCK},
- {BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, EDEADLOCK},
- {BUS_ERROR_UNIT_MASKED, ENOSYS},
- {BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, EBADR},
- {BUS_ERROR_NO_ISOLATION, EPERM},
- {BUS_ERROR_SHUTTING_DOWN, ECANCELED},
- {BUS_ERROR_SCOPE_NOT_RUNNING, EHOSTDOWN},
+BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map shared_errors[] = {
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_UNIT, ENOENT),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_UNIT_FOR_PID, ESRCH),
+ SD_BUS_ERROR_MAP(BUS_ERROR_UNIT_EXISTS, EEXIST),
+ SD_BUS_ERROR_MAP(BUS_ERROR_LOAD_FAILED, EIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_JOB_FAILED, EREMOTEIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_JOB, ENOENT),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NOT_SUBSCRIBED, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_ALREADY_SUBSCRIBED, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_ONLY_BY_DEPENDENCY, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_TRANSACTION_JOBS_CONFLICTING, EDEADLOCK),
+ SD_BUS_ERROR_MAP(BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, EDEADLOCK),
+ SD_BUS_ERROR_MAP(BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, EDEADLOCK),
+ SD_BUS_ERROR_MAP(BUS_ERROR_UNIT_MASKED, ENOSYS),
+ SD_BUS_ERROR_MAP(BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, EBADR),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_ISOLATION, EPERM),
+ SD_BUS_ERROR_MAP(BUS_ERROR_SHUTTING_DOWN, ECANCELED),
+ SD_BUS_ERROR_MAP(BUS_ERROR_SCOPE_NOT_RUNNING, EHOSTDOWN),
- {BUS_ERROR_NO_SUCH_MACHINE, ENXIO},
- {BUS_ERROR_NO_MACHINE_FOR_PID, ENXIO},
- {BUS_ERROR_MACHINE_EXISTS, EEXIST},
- {BUS_ERROR_NO_PRIVATE_NETWORKING, ENOSYS},
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_MACHINE, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_MACHINE_FOR_PID, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_MACHINE_EXISTS, EEXIST),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_PRIVATE_NETWORKING, ENOSYS),
- {BUS_ERROR_NO_SUCH_SESSION, ENXIO},
- {BUS_ERROR_NO_SESSION_FOR_PID, ENXIO},
- {BUS_ERROR_NO_SUCH_USER, ENXIO},
- {BUS_ERROR_NO_USER_FOR_PID, ENXIO},
- {BUS_ERROR_NO_SUCH_SEAT, ENXIO},
- {BUS_ERROR_SESSION_NOT_ON_SEAT, EINVAL},
- {BUS_ERROR_NOT_IN_CONTROL, EINVAL},
- {BUS_ERROR_DEVICE_IS_TAKEN, EINVAL},
- {BUS_ERROR_DEVICE_NOT_TAKEN, EINVAL},
- {BUS_ERROR_OPERATION_IN_PROGRESS, EINPROGRESS},
- {BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, ENOSYS},
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_SESSION, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SESSION_FOR_PID, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_USER, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_USER_FOR_PID, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_SEAT, ENXIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_SESSION_NOT_ON_SEAT, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NOT_IN_CONTROL, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_DEVICE_IS_TAKEN, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_DEVICE_NOT_TAKEN, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_OPERATION_IN_PROGRESS, EINPROGRESS),
+ SD_BUS_ERROR_MAP(BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, ENOSYS),
- {BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, EALREADY},
+ SD_BUS_ERROR_MAP(BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, EALREADY),
- {BUS_ERROR_NO_SUCH_PROCESS, ESRCH},
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_PROCESS, ESRCH),
- {BUS_ERROR_NO_NAME_SERVERS, EIO},
- {BUS_ERROR_INVALID_REPLY, EINVAL},
- {BUS_ERROR_NO_SUCH_RR, ENOENT},
- {BUS_ERROR_NO_RESOURCES, ENOMEM},
- {BUS_ERROR_CNAME_LOOP, EDEADLOCK},
- {BUS_ERROR_ABORTED, ECANCELED},
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_NAME_SERVERS, EIO),
+ SD_BUS_ERROR_MAP(BUS_ERROR_INVALID_REPLY, EINVAL),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_SUCH_RR, ENOENT),
+ SD_BUS_ERROR_MAP(BUS_ERROR_NO_RESOURCES, ENOMEM),
+ SD_BUS_ERROR_MAP(BUS_ERROR_CNAME_LOOP, EDEADLOCK),
+ SD_BUS_ERROR_MAP(BUS_ERROR_ABORTED, ECANCELED),
+
+ SD_BUS_ERROR_MAP_END
};
***/
#include "sd-bus.h"
+#include "bus-error.h"
#define BUS_ERROR_NO_SUCH_UNIT "org.freedesktop.systemd1.NoSuchUnit"
#define BUS_ERROR_NO_UNIT_FOR_PID "org.freedesktop.systemd1.NoUnitForPID"
#define BUS_ERROR_ABORTED "org.freedesktop.resolve1.Aborted"
#define _BUS_ERROR_DNS "org.freedesktop.resolve1.DnsError."
-SD_BUS_ERROR_MAPPING_USE(systemd_shared);
+BUS_ERROR_MAP_ELF_USE(shared_errors);
#error "Wut? Pointers are neither 4 nor 8 bytes long?"
#endif
-#define ALIGN_PTR(p) ((void*) ALIGN((unsigned long) p))
-#define ALIGN4_PTR(p) ((void*) ALIGN4((unsigned long) p))
-#define ALIGN8_PTR(p) ((void*) ALIGN8((unsigned long) p))
+#define ALIGN_PTR(p) ((void*) ALIGN((unsigned long) (p)))
+#define ALIGN4_PTR(p) ((void*) ALIGN4((unsigned long) (p)))
+#define ALIGN8_PTR(p) ((void*) ALIGN8((unsigned long) (p)))
static inline size_t ALIGN_TO(size_t l, size_t ali) {
return ((l + ali - 1) & ~(ali - 1));
}
-#define ALIGN_TO_PTR(p, ali) ((void*) ALIGN_TO((unsigned long) p, ali))
+#define ALIGN_TO_PTR(p, ali) ((void*) ALIGN_TO((unsigned long) (p), (ali)))
/* align to next higher power-of-2 (except for: 0 => 0, overflow => 0) */
static inline unsigned long ALIGN_POWER2(unsigned long u) {
int _need_free;
} sd_bus_error;
+typedef struct {
+ const char* name;
+ int code;
+} sd_bus_error_map;
+
/* Flags */
enum {
/* Error structures */
-struct sd_bus_name_error_mapping {
- const char* name;
- int code;
-};
-typedef struct sd_bus_name_error_mapping sd_bus_name_error_mapping;
-
#define SD_BUS_ERROR_MAKE_CONST(name, message) ((const sd_bus_error) {(name), (message), 0})
#define SD_BUS_ERROR_NULL SD_BUS_ERROR_MAKE_CONST(NULL, NULL)
-#ifndef SD_BUS_ERROR_MAPPING
-# define _SD_BUS_ERROR_XCONCAT(x, y) x ## y
-# define _SD_BUS_ERROR_CONCAT(x, y) _SD_BUS_ERROR_XCONCAT(x, y)
-# define SD_BUS_ERROR_MAPPING(name) \
- __attribute((__section__("sd_bus_errnomap"))) \
- __attribute((__used__)) \
- const sd_bus_name_error_mapping _SD_BUS_ERROR_CONCAT(_sd_bus_errno_mapping_, name)[]
-# define SD_BUS_ERROR_MAPPING_USE(name) \
- extern \
- const sd_bus_name_error_mapping _SD_BUS_ERROR_CONCAT(_sd_bus_errno_mapping_, name)[]; \
- __attribute((__used__)) \
- static const sd_bus_name_error_mapping* \
- _SD_BUS_ERROR_CONCAT(sd_bus_name_error_mapping_ref, __COUNTER__) \
- = _SD_BUS_ERROR_CONCAT(_sd_bus_errno_mapping_, name);
-#endif
-
-
void sd_bus_error_free(sd_bus_error *e);
int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message);
int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...) _sd_printf_(3, 4);
int sd_bus_error_is_set(const sd_bus_error *e);
int sd_bus_error_has_name(const sd_bus_error *e, const char *name);
+#define SD_BUS_ERROR_MAP(_name, _code) \
+ { \
+ .name = _name, \
+ .code = _code, \
+ }
+#define SD_BUS_ERROR_MAP_END \
+ { \
+ .name = NULL, \
+ .code = - 'x', \
+ }
+
+int sd_bus_error_add_map(const sd_bus_error_map *map);
+
/* Auxiliary macros */
#define SD_BUS_MESSAGE_APPEND_ID128(x) 16, \
#include "fileio-label.h"
#include "label.h"
#include "bus-util.h"
+#include "bus-error.h"
#include "bus-errors.h"
#include "event-util.h"
#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
#define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
-SD_BUS_ERROR_MAPPING(timedated) = {
- {"org.freedesktop.timedate1.NoNTPSupport", ENOTSUP},
+static BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map timedated_errors[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.timedate1.NoNTPSupport", ENOTSUP),
+ SD_BUS_ERROR_MAP_END
};
typedef struct Context {
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