def _x_tune_ok(self, channel_max, frame_max, heartbeat):
"""
negotiate connection tuning parameters
This method sends the client's connection tuning parameters to
the server. Certain fields are negotiated, others provide
capability information.
PARAMETERS:
channel_max: short
negotiated maximum channels
The maximum total number of channels that the client
will use per connection. May not be higher than the
value specified by the server.
RULE:
The server MAY ignore the channel-max value or MAY
use it for tuning its resource allocation.
frame_max: long
negotiated maximum frame size
The largest frame size that the client and server will
use for the connection. Zero means that the client
does not impose any specific limit but may reject very
large frames if it cannot allocate resources for them.
Note that the frame-max limit applies principally to
content frames, where large contents can be broken
into frames of arbitrary size.
RULE:
Until the frame-max has been negotiated, both
peers must accept frames of up to 4096 octets
large. The minimum non-zero value for the frame-
max field is 4096.
heartbeat: short
desired heartbeat delay
The delay, in seconds, of the connection heartbeat
that the client wants. Zero means the client does not
want a heartbeat.
"""
args = AMQPWriter()
args.write_short(channel_max)
args.write_long(frame_max)
args.write_short(heartbeat)
self._send_method((10, 31), args)
self._wait_tune_ok = False
def _x_tune_ok(self, channel_max, frame_max, heartbeat):
"""
negotiate connection tuning parameters
This method sends the client's connection tuning parameters to
the server. Certain fields are negotiated, others provide
capability information.
PARAMETERS:
channel_max: short
negotiated maximum channels
The maximum total number of channels that the client
will use per connection. May not be higher than the
value specified by the server.
RULE:
The server MAY ignore the channel-max value or MAY
use it for tuning its resource allocation.
frame_max: long
negotiated maximum frame size
The largest frame size that the client and server will
use for the connection. Zero means that the client
does not impose any specific limit but may reject very
large frames if it cannot allocate resources for them.
Note that the frame-max limit applies principally to
content frames, where large contents can be broken
into frames of arbitrary size.
RULE:
Until the frame-max has been negotiated, both
peers must accept frames of up to 4096 octets
large. The minimum non-zero value for the frame-
max field is 4096.
heartbeat: short
desired heartbeat delay
The delay, in seconds, of the connection heartbeat
that the client wants. Zero means the client does not
want a heartbeat.
"""
args = AMQPWriter()
args.write_short(channel_max)
args.write_long(frame_max)
args.write_short(heartbeat)
self._send_method((10, 31), args)
self._wait_tune_ok = False
def close(self, reply_code=0, reply_text='', method_sig=(0, 0)):
"""
request a connection close
This method indicates that the sender wants to close the
connection. This may be due to internal conditions (e.g. a
forced shut-down) or due to an error handling a specific
method, i.e. an exception. When a close is due to an
exception, the sender provides the class and method id of the
method which caused the exception.
RULE:
After sending this method any received method except the
Close-OK method MUST be discarded.
RULE:
The peer sending this method MAY use a counter or timeout
to detect failure of the other peer to respond correctly
with the Close-OK method.
RULE:
When a server receives the Close method from a client it
MUST delete all server-side resources associated with the
client's context. A client CANNOT reconnect to a context
after sending or receiving a Close method.
PARAMETERS:
reply_code: short
The reply code. The AMQ reply codes are defined in AMQ
RFC 011.
reply_text: shortstr
The localised reply text. This text can be logged as an
aid to resolving issues.
class_id: short
failing method class
When the close is provoked by a method exception, this
is the class of the method.
method_id: short
failing method ID
When the close is provoked by a method exception, this
is the ID of the method.
"""
if self.transport is None:
# already closed
return
args = AMQPWriter()
args.write_short(reply_code)
args.write_shortstr(reply_text)
args.write_short(method_sig[0]) # class_id
args.write_short(method_sig[1]) # method_id
self._send_method((10, 60), args)
return self.wait(allowed_methods=[
(10, 61), # Connection.close_ok
])
def close(self, reply_code=0, reply_text="", method_sig=(0, 0)):
"""
request a connection close
This method indicates that the sender wants to close the
connection. This may be due to internal conditions (e.g. a
forced shut-down) or due to an error handling a specific
method, i.e. an exception. When a close is due to an
exception, the sender provides the class and method id of the
method which caused the exception.
RULE:
After sending this method any received method except the
Close-OK method MUST be discarded.
RULE:
The peer sending this method MAY use a counter or timeout
to detect failure of the other peer to respond correctly
with the Close-OK method.
RULE:
When a server receives the Close method from a client it
MUST delete all server-side resources associated with the
client's context. A client CANNOT reconnect to a context
after sending or receiving a Close method.
PARAMETERS:
reply_code: short
The reply code. The AMQ reply codes are defined in AMQ
RFC 011.
reply_text: shortstr
The localised reply text. This text can be logged as an
aid to resolving issues.
class_id: short
failing method class
When the close is provoked by a method exception, this
is the class of the method.
method_id: short
failing method ID
When the close is provoked by a method exception, this
is the ID of the method.
"""
if self.transport is None:
# already closed
return
args = AMQPWriter()
args.write_short(reply_code)
args.write_shortstr(reply_text)
args.write_short(method_sig[0]) # class_id
args.write_short(method_sig[1]) # method_id
self._send_method((10, 60), args)
return self.wait(allowed_methods=[(10, 61)]) # Connection.close_ok
