diff options
Diffstat (limited to 'src/libsystemd-bus/kdbus.h')
| -rw-r--r-- | src/libsystemd-bus/kdbus.h | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/src/libsystemd-bus/kdbus.h b/src/libsystemd-bus/kdbus.h index 71bf86d063..71cfe06eac 100644 --- a/src/libsystemd-bus/kdbus.h +++ b/src/libsystemd-bus/kdbus.h @@ -345,21 +345,13 @@ enum kdbus_payload_type { * @payload_type: Payload type (KDBUS_PAYLOAD_*) * @cookie: Userspace-supplied cookie, for the connection * to identify its messages - * @cookie_reply: A reply to the message with the same cookie. The - * reply itself has its own cookie, @cookie_reply - * corresponds to the cookie of the request message - * @timeout_ns: For non-kernel-generated messages, this denotes the - * message timeout in nanoseconds. A message has to be - * received with KDBUS_CMD_MSG_RECV by the destination - * connection within this time frame. For messages that - * have KDBUS_MSG_FLAGS_EXPECT_REPLY set in @flags, - * this value also denotes the timeout for the reply to - * this message. If there is no reply, or the message is - * not received in time by the other side, a - * kernel-generated message with an attached - * KDBUS_ITEM_REPLY_TIMEOUT item is sent to @src_id. - * A 0-value is only valid if KDBUS_MSG_FLAGS_EXPECT_REPLY - * is unset in @flags. + * @cookie_reply: A reply to the requesting message with the same + * cookie. The requesting connection can match its + * request and the reply with this value + * @timeout_ns: The time to wait for a message reply from the peer. + * If there is no reply, a kernel-generated message + * with an attached KDBUS_ITEM_REPLY_TIMEOUT item + * is sent to @src_id. * @items: A list of kdbus_items containing the message payload */ struct kdbus_msg { @@ -369,8 +361,10 @@ struct kdbus_msg { __u64 src_id; __u64 payload_type; __u64 cookie; - __u64 cookie_reply; - __u64 timeout_ns; + union { + __u64 cookie_reply; + __u64 timeout_ns; + }; struct kdbus_item items[0]; } __attribute__((aligned(8))); |