bus: use internal helper to read org.freedesktop.DBus.Properties::GetAll variables

[elogind.git] / src / libsystemd-bus / bus-util.h

diff --git a/src/libsystemd-bus/bus-util.h b/src/libsystemd-bus/bus-util.h
index 354183f69014516241317e3dfff763d2a990a44a..ddb926498fb90cf96f52dc4b38c39436ecf97895 100644 (file)
--- a/src/libsystemd-bus/bus-util.h
+++ b/src/libsystemd-bus/bus-util.h
@@ -27,6 +27,25 @@
 #include "time-util.h"
 #include "util.h"
 
+typedef enum BusTransport {
+        BUS_TRANSPORT_LOCAL,
+        BUS_TRANSPORT_REMOTE,
+        BUS_TRANSPORT_CONTAINER,
+        _BUS_TRANSPORT_MAX,
+        _BUS_TRANSPORT_INVALID = -1
+} BusTransport;
+
+struct bus_properties_map {
+        const char *type;
+        const char *name;
+        void *ptr;
+};
+
+int bus_map_all_properties(sd_bus *bus,
+                           const char *destination,
+                           const char *path,
+                           const struct bus_properties_map *map);
+
 int bus_async_unregister_and_quit(sd_event *e, sd_bus *bus, const char *name);
 
 int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout);
@@ -37,9 +56,50 @@ int bus_verify_polkit(sd_bus *bus, sd_bus_message *m, const char *action, bool i
 int bus_verify_polkit_async(sd_bus *bus, Hashmap **registry, sd_bus_message *m, const char *action, bool interactive, sd_bus_error *error, sd_bus_message_handler_t callback, void *userdata);
 void bus_verify_polkit_async_registry_free(sd_bus *bus, Hashmap *registry);
 
+int bus_open_system_systemd(sd_bus **_bus);
+
+int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
+
+int bus_generic_print_property(const char *name, sd_bus_message *property, bool all);
+
 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus*, sd_bus_unref);
 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message*, sd_bus_message_unref);
 
 #define _cleanup_bus_unref_ _cleanup_(sd_bus_unrefp)
-#define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free)
 #define _cleanup_bus_message_unref_ _cleanup_(sd_bus_message_unrefp)
+#define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free)
+
+#define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type)              \
+        int function(sd_bus *bus,                                       \
+                     const char *path,                                  \
+                     const char *interface,                             \
+                     const char *property,                              \
+                     sd_bus_message *reply,                             \
+                     sd_bus_error *error,                               \
+                     void *userdata) {                                  \
+                                                                        \
+                const char *value;                                      \
+                type *field = userdata;                                 \
+                int r;                                                  \
+                                                                        \
+                assert(bus);                                            \
+                assert(reply);                                          \
+                assert(field);                                          \
+                                                                        \
+                value = strempty(name##_to_string(*field));             \
+                                                                        \
+                r = sd_bus_message_append_basic(reply, 's', value);     \
+                if (r < 0)                                              \
+                        return r;                                       \
+                                                                        \
+                return 1;                                               \
+        }                                                               \
+        struct __useless_struct_to_allow_trailing_semicolon__
+
+#define BUS_ERROR_NO_SUCH_UNIT "org.freedesktop.systemd1.NoSuchUnit"
+#define BUS_ERROR_LOAD_FAILED "org.freedesktop.systemd1.LoadFailed"
+#define BUS_ERROR_JOB_FAILED "org.freedesktop.systemd1.JobFailed"
+
+#define BUS_ERROR_NO_SUCH_MACHINE "org.freedesktop.machine1.NoSuchMachine"
+#define BUS_ERROR_NO_MACHINE_FOR_PID "org.freedesktop.machine1.NoMachineForPID"
+#define BUS_ERROR_MACHINE_EXISTS "org.freedesktop.machine1.MachineExists"