Inter-Tel AXXESS Manual page 1458

Appendix C — CP Server
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INTER-TEL AXXESS
12. MEMORY MAPPED FILES
12.1 The CP Server and the System track and store static information differently, as
described below:
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12.2 When the CP Server first starts up, it either creates or checks for the existence of the
following files:
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Page C-10
MANUAL VERSION 11.0 – May 2008
The System uses static memory to store the message print log and buffer, reset log,
exception log, history queue, and the database itself. Each of these is assigned, or
mapped to, a specific predetermined memory address range.
The CP Server follows the same concept. Address space uses memory-mapped files in
lieu of the static memory allocation used on the System, with several subtle differences.
The size of each individual buffer is determined at run time by registry settings. A file
is then created on disk and its contents mapped into the processes memory address
space.
Cp_queue.mmf: This is the queue where all system commands are stored. This is
equivalent to the .cph file you would see in a System history retrieval. The .cph file
on the System is limited to 120 KB. On the CP Server, however, this file defaults to
1024 KB.
Exception_log.mmf: This is the queue where all the exception data is kept. This
includes the state of registers and call stack at the time the exception occurred. This is
really no different than the exception data found in the upper half of the .dmp file you
would see in a System history retrieval. The two differences are that the exception data
is in a format more suited to Windows NT and Windows 2000 and that call stack
addresses are translated to function calls directly. On the CP Server, the default is 256K.
Reset_log.mmf: This is the queue where all the reset records are stored. It is equivalent
to the lower half of the .dmp file you would see in a System history retrieval.
Msg_print_log.mmf: This is the queue where message print messages flagged to be
logged are kept. This is completely equivalent to the .log file you would see in a Sys-
tem history retrieval. On the System, however, the buffer is limited to 64 KB. On the
CP Server, the default is 256 KB.
Msg_print_buffer.mmf: This is the queue where message print messages waiting to be
printed are stored until the message print device is available. This is equivalent to how
the System works. On the System, however, the buffer is limited to 64 KB. On the CP
Server, the default is 256 KB.
Static_memory.mmf: The static memory region is essentially the database. All data-
base changes are stored in this file. However, this file consists of more than just the
database. All objects allocated into static memory are also located here. This includes
many static structures within call processing. Deleting this file is the same as defaulting
the database.
Network_print_log.mmf: This is the queue where all of the network link information
is stored.
Memory Mapped Files