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bus: add convenience calls for method replies, too

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This commit is contained in:
Lennart Poettering 2013-04-05 14:48:43 +02:00
parent 88d331d537
commit f10dda3b82
2 changed files with 65 additions and 0 deletions
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63
src/libsystemd-bus/sd-bus.c
View File

@ -2265,3 +2265,66 @@ int sd_bus_call_method(
return sd_bus_send_with_reply_and_block(bus, m, 0, error, reply);
}
int sd_bus_reply_method_return(
sd_bus *bus,
sd_bus_message *call,
const char *types, ...) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
va_list ap;
int r;
if (!bus)
return -EINVAL;
if (!call)
return -EINVAL;
if (!call->sealed)
return -EPERM;
if (call->header->type != SD_BUS_MESSAGE_TYPE_METHOD_CALL)
return -EINVAL;
if (call->header->flags & SD_BUS_MESSAGE_NO_REPLY_EXPECTED)
return 0;
r = sd_bus_message_new_method_return(bus, call, &m);
if (r < 0)
return r;
va_start(ap, types);
r = bus_message_append_ap(m, types, ap);
va_end(ap);
if (r < 0)
return r;
return sd_bus_send(bus, m, NULL);
}
int sd_bus_reply_method_error(
sd_bus *bus,
sd_bus_message *call,
const sd_bus_error *e) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
if (!bus)
return -EINVAL;
if (!call)
return -EINVAL;
if (!call->sealed)
return -EPERM;
if (call->header->type != SD_BUS_MESSAGE_TYPE_METHOD_CALL)
return -EINVAL;
if (!sd_bus_error_is_set(e))
return -EINVAL;
if (call->header->flags & SD_BUS_MESSAGE_NO_REPLY_EXPECTED)
return 0;
r = sd_bus_message_new_method_error(bus, call, e, &m);
if (r < 0)
return r;
return sd_bus_send(bus, m, NULL);
}

2
src/systemd/sd-bus.h
View File

@ -149,6 +149,8 @@ int sd_bus_message_rewind(sd_bus_message *m, int complete);
int sd_bus_emit_signal(sd_bus *bus, const char *path, const char *interface, const char *member, const char *types, ...);
int sd_bus_call_method(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *error, sd_bus_message **reply, const char *types, ...);
int sd_bus_reply_method_return(sd_bus *bus, sd_bus_message *call, const char *types, ...);
int sd_bus_reply_method_error(sd_bus *bus, sd_bus_message *call, const sd_bus_error *e);
/* Bus management */