CXM_generic_protocol.anubis
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/*
*
* User: David RENE
* Date: 25/04/2007
* Time: 16:20
* (c) Calexium
*
*/
read system/muscle.anubis
read system/data_io.anubis
read system/string.anubis
read tools/basis.anubis
read system/message_queue.anubis
read calexium_lib/CXM_message_constants.anubis
public define Word32 _CXM_OK = 0.
public define Word32 _CXM_ERROR = 1.
public define Word32 _CXM_UNKNOW_CMD = 2.
public define Word32 _CXM_UNKNOW_SERVICE = 3.
public define Word32 _CXM_MISSING_REQUIRED_FIELD = 4.
public define Word32 _CXM_FORBIDDEN = 5.
public define Word32 _CXM_BAD_AUTHENTICATION = 6.
public define Word32 _CXM_TEMPORARY_ERROR = 7. // When received, the client should try later
public type ProtocolResult:
failure,
timeout,
unknow_cmd,
error,
error(Word32, String),
ok,
ok_msg(Message).
public define One
send_ACK_error
(
MessageQueue queue,
Word32 cmd_id,
Word32 error_code,
String error_string,
)=
with err_msg = message(_CXM_ACK),
forget(add_int32(err_msg, "CMD", cmd_id));
forget(add_int32(err_msg, "STATUS", error_code));
(if error_string /= "" then forget(add_string(err_msg, "STATUS_MSG", error_string))
else unique);
forget(queue.add_Message_to_send(err_msg)).
public define One
send_ACK_error
(
MessageQueue queue,
Word32 cmd_id
)=
send_ACK_error(queue, cmd_id, _CXM_ERROR, "").
public define One
send_ACK_ok
(
MessageQueue queue,
Word32 cmd_id
)=
with ok_msg = message(_CXM_ACK),
forget(add_int32(ok_msg, "CMD", cmd_id));
forget(add_int32(ok_msg, "STATUS", _CXM_OK));
forget(queue.add_Message_to_send(ok_msg))
.
public define One
send_ACK_ok
(
MessageQueue queue,
Word32 cmd_id,
Message result
)=
with ok_msg = message(_CXM_ACK),
forget(add_int32(ok_msg, "CMD", cmd_id));
forget(add_int32(ok_msg, "STATUS", _CXM_OK));
forget(add_message(ok_msg, "RESULT", result));
forget(queue.add_Message_to_send(ok_msg))
.
public define One
send_result
(
MessageQueue queue,
Word32 cmd_id,
Maybe(Message) mb_msg
)=
if mb_msg is
{
failure then send_ACK_error(queue, cmd_id),
success(msg) then send_ACK_ok(queue, cmd_id, msg)
}.
public define One
send_result
(
MessageQueue queue,
Word32 cmd_id,
Result((Word32, String), Message) mb_msg
)=
if mb_msg is
{
error(err) then
if err is (err_code, err_string) then
send_ACK_error(queue, cmd_id, err_code, err_string),
ok(msg) then send_ACK_ok(queue, cmd_id, msg)
}.
public define One
send_result
(
MessageQueue queue,
Word32 cmd_id,
Bool result
)=
if result then
send_ACK_ok(queue, cmd_id)
else
send_ACK_error(queue, cmd_id).
public define ProtocolResult
wait_for_reply
(
MessageQueue mQ,
Word32 wait_cmd,
Int t_out
) =
if mQ.get_next_received_Message(t_out) is
{
timeout then timeout,
closed then failure, //println("wait_for_reply closed");
msg(_msg) then
if *_msg.what = _CXM_ACK then
if find_int32(_msg, "CMD") is
{
failure then failure, //println("wait_for_reply CMD");
success(cmd) then
// println("wait_for_reply CMD="+to_hexa(cmd));
if find_int32(_msg, "STATUS") is
{
failure then failure, //println("wait_for_reply STATUS");
success(status) then
if cmd = wait_cmd then
(
if status = _CXM_OK then
if find_message(_msg, "RESULT") is
{
failure then ok,
success(ok_message) then ok_msg(ok_message)
}
else if status = _CXM_ERROR then
error
else if status = _CXM_UNKNOW_CMD then
unknow_cmd
else
error(status, if find_string(_msg, "STATUS_MSG") is success(txt) then txt else "")
)
else
failure //println("wait_for_reply ");
}
}
else
failure //println("wait_for_reply not ACK");
}.