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К этому устройству также есть другие инструкции:
Фрагмент инструкции
• When Boxcar receives a “Queued Message Cancellation” message it uses the
value specified in LOGMSGWRITEINTERVAL to start a timer. While the timer is
running, Boxcar counts the number of these messages it receives. When the timer
expires, Boxcar uses a no-waited write operation, with depth of one, to record in its
log file the number of queued message cancellation messages it has received
during this interval. If during this attempted write operation there is another write in
process, Boxcar will start another timer and continue counting queued message
cancellation messages. This process continues until Boxcar is successful in writing
to its log file.
• When the number of incoming requests exceeds the number of sockets Boxcar
has opened on the Network Security Processor, Boxcar queues incoming requests,
and monitors the depth of the queue and its duration. When the queue clears,
Boxcar uses a no-waited write operation, with a depth of 1, to write a queue depth
message to its log file. If during this attempted write operation there is another
write in process, Boxcar will use the value specified in LOGMSGWRITEINTERVAL
to start a timer. While the timer is running, any additional queue depth messages
will be discarded. When the timer expires, Boxcar will attempt to write the queue
depth message again. This process continues until Boxcar is successful in writing
this message.
• Boxcar uses a no-waited write operation, with a depth of 1, to write to $0. If during
this attempted write operation there is another write in process, Boxcar will use the
value specified in LOGMSGWRITEINTERVAL to start a timer. While the timer is
running, any additional messages to be written to $0 are discarded. When the
timer expires, Boxcar will attempt to write the next message to its log file. This
process continues until Boxcar is successful in writing this message.
• When Boxcar receives an error 45 (file full) on an attempt to write a message to its
log file, it will discard the message, write an error 45 to $0, and use the value in
LOGMSGWRITEINTERVAL to start a timer. Any subsequent log file messages
that Boxcar generates while this timer is running are discarded. After the timer
expires, Boxcar will attempt to write the next message to its log file. If the log file is
no longer full, the write will be successful. If the file is still full, Boxcar starts the
LOGMSGWRITEINTERVAL timer again. While the Boxcar log file is full, Boxcar
will write one error 45 message to $0 per hour. This process continues until Boxcar
is successful in writing messages to its log file.
BOXCAR-MAX-FLATSEG-SIZE
This parameter is optional, it can be used to specify the size of a swap space for
commands and responses. If this parameter is not specified Boxcar will use the
maximum size of 133 MB.
Boxcar requires approximately 32,000 bytes of swap space to store a command or
response for each requestor. The maximum number of requestors allowed by Boxcar is
defined by BOXCAR-RECV-DEPTH, the default and maximum is 4047.
Atalla Boxcar Reference Guide— 529153-004
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