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Merge pull request #15331 from vcaputo/busdpi

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bus: introduce some sd-bus convenience helpers
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2020-04-09 09:32:58 +02:00 committed by GitHub
commit ca03142040
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2 changed files with 158 additions and 0 deletions
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139
src/shared/bus-util.c
View File

@ -1390,3 +1390,142 @@ const struct hash_ops bus_message_hash_ops = {
.compare = trivial_compare_func,
.free_value = bus_message_unref_wrapper,
};
/* Shorthand flavors of the sd-bus convenience helpers with destination,path,interface
* strings encapsulated within a single struct.
*/
int bus_call_method_async(
sd_bus *bus,
sd_bus_slot **slot,
const BusAddress *address,
const char *member,
sd_bus_message_handler_t callback,
void *userdata,
const char *types, ...) {
va_list ap;
int r;
assert(address);
va_start(ap, types);
r = sd_bus_call_method_asyncv(bus, slot, address->destination, address->path, address->interface, member, callback, userdata, types, ap);
va_end(ap);
return r;
}
int bus_call_method(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
sd_bus_message **reply,
const char *types, ...) {
va_list ap;
int r;
assert(address);
va_start(ap, types);
r = sd_bus_call_methodv(bus, address->destination, address->path, address->interface, member, error, reply, types, ap);
va_end(ap);
return r;
}
int bus_get_property(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
sd_bus_message **reply,
const char *type) {
assert(address);
return sd_bus_get_property(bus, address->destination, address->path, address->interface, member, error, reply, type);
}
int bus_get_property_trivial(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
char type, void *ptr) {
assert(address);
return sd_bus_get_property_trivial(bus, address->destination, address->path, address->interface, member, error, type, ptr);
}
int bus_get_property_string(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
char **ret) {
assert(address);
return sd_bus_get_property_string(bus, address->destination, address->path, address->interface, member, error, ret);
}
int bus_get_property_strv(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
char ***ret) {
assert(address);
return sd_bus_get_property_strv(bus, address->destination, address->path, address->interface, member, error, ret);
}
int bus_set_property(
sd_bus *bus,
const BusAddress *address,
const char *member,
sd_bus_error *error,
const char *type, ...) {
va_list ap;
int r;
assert(address);
va_start(ap, type);
r = sd_bus_set_propertyv(bus, address->destination, address->path, address->interface, member, error, type, ap);
va_end(ap);
return r;
}
int bus_match_signal(
sd_bus *bus,
sd_bus_slot **ret,
const BusAddress *address,
const char *member,
sd_bus_message_handler_t callback,
void *userdata) {
assert(address);
return sd_bus_match_signal(bus, ret, address->destination, address->path, address->interface, member, callback, userdata);
}
int bus_match_signal_async(
sd_bus *bus,
sd_bus_slot **ret,
const BusAddress *address,
const char *member,
sd_bus_message_handler_t callback,
sd_bus_message_handler_t install_callback,
void *userdata) {
assert(address);
return sd_bus_match_signal_async(bus, ret, address->destination, address->path, address->interface, member, callback, install_callback, userdata);
}

19
src/shared/bus-util.h
View File

@ -22,6 +22,12 @@ typedef enum BusTransport {
_BUS_TRANSPORT_INVALID = -1
} BusTransport;
typedef struct BusAddress {
const char *destination;
const char *path;
const char *interface;
} BusAddress;
typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
struct bus_properties_map {
@ -179,3 +185,16 @@ static inline int bus_open_system_watch_bind(sd_bus **ret) {
int bus_reply_pair_array(sd_bus_message *m, char **l);
extern const struct hash_ops bus_message_hash_ops;
/* Shorthand flavors of the sd-bus convenience helpers with destination,path,interface
* strings encapsulated within a single struct.
*/
int bus_call_method_async(sd_bus *bus, sd_bus_slot **slot, const BusAddress *address, const char *member, sd_bus_message_handler_t callback, void *userdata, const char *types, ...);
int bus_call_method(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, sd_bus_message **reply, const char *types, ...);
int bus_get_property(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, sd_bus_message **reply, const char *type);
int bus_get_property_trivial(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, char type, void *ptr);
int bus_get_property_string(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, char **ret);
int bus_get_property_strv(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, char ***ret);
int bus_set_property(sd_bus *bus, const BusAddress *address, const char *member, sd_bus_error *error, const char *type, ...);
int bus_match_signal(sd_bus *bus, sd_bus_slot **ret, const BusAddress *address, const char *member, sd_bus_message_handler_t callback, void *userdata);
int bus_match_signal_async(sd_bus *bus, sd_bus_slot **ret, const BusAddress *address, const char *member, sd_bus_message_handler_t callback, sd_bus_message_handler_t install_callback, void *userdata);