diff options
| -rw-r--r-- | src/libsystemd/kdbus.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/libsystemd/kdbus.h b/src/libsystemd/kdbus.h index 10102d4335..fe0bb48728 100644 --- a/src/libsystemd/kdbus.h +++ b/src/libsystemd/kdbus.h @@ -9,6 +9,9 @@ * the terms of the GNU Lesser General Public License as published by the * Free Software Foundation; either version 2.1 of the License, or (at * your option) any later version. + * + * "Everything should be made as simple as possible, but not simpler." + * -- Albert Einstein */ #ifndef _KDBUS_H_ @@ -327,12 +330,23 @@ struct kdbus_item { * cookie identifies the message and the * respective reply carries the cookie * in cookie_reply + * @KDBUS_MSG_FLAGS_SYNC_REPLY: Wait for destination connection to + * reply to this message. The + * KDBUS_CMD_MSG_SEND ioctl() will block + * until the reply is received, and + * offset_reply in struct kdbus_msg will + * yield the offset in the sender's pool + * where the reply can be found. + * This flag is only valid if + * @KDBUS_MSG_FLAGS_EXPECT_REPLY is set as + * well. * @KDBUS_MSG_FLAGS_NO_AUTO_START: Do not start a service, if the addressed * name is not currently active */ enum kdbus_msg_flags { KDBUS_MSG_FLAGS_EXPECT_REPLY = 1 << 0, - KDBUS_MSG_FLAGS_NO_AUTO_START = 1 << 1, + KDBUS_MSG_FLAGS_SYNC_REPLY = 1 << 1, + KDBUS_MSG_FLAGS_NO_AUTO_START = 1 << 2, }; /** @@ -362,6 +376,9 @@ enum kdbus_payload_type { * @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 + * @offset_reply: If KDBUS_MSG_FLAGS_WAIT_FOR_REPLY, this field will + * contain the offset in the sender's pool where the + * reply is stored. * @items: A list of kdbus_items containing the message payload */ struct kdbus_msg { @@ -375,6 +392,7 @@ struct kdbus_msg { union { __u64 timeout_ns; __u64 cookie_reply; + __u64 offset_reply; }; struct kdbus_item items[0]; } __attribute__((aligned(8))); @@ -399,7 +417,7 @@ enum kdbus_recv_flags { }; /** - * kdbus_cmd_recv - struct to de-queue a buffered message + * struct kdbus_cmd_recv - struct to de-queue a buffered message * @flags: KDBUS_RECV_* flags * @priority: Minimum priority of the messages to de-queue. Lowest * values have the highest priority. |