KR19990060636A - How to manage state of exchange - Google Patents

Abstract

The state management method of the exchange includes a process in which the main thread of the TPC polls the call processing unit and the IP server to determine whether there is a message, processes the message when there is a message, and checks whether there is an abnormality in the communication path and forms a path. The TPC creates a thread when a processor status processing message occurs, and the generating thread connects the communication path with the call processor and the IP server, determines the message type, calls the corresponding function, processes the message, and waits if there is no message. .

Description

How to manage the state of the exchange

The present invention relates to a state management method of an exchange, and more particularly, to a method capable of improving protocol processing capability by processing protocol processing and state processing units in different threads.

1 shows a configuration for processing protocol functions in a conventional exchange.

Referring to FIG. 1, a TCAP115 is mounted in an Advanced Intelligent Processor (AIP) that is responsible for SSF function among AIN functions in an exchange system for intelligent network protocol processing. The TCAP115 receives a status message by using an upper process manager and a UNIX domain socket, and thus determines whether to transmit the message.

The biggest purpose of implementing the TCAP115 is to process the intelligent network protocol INAP. Conventionally, as shown in FIG. 1, a message output to a call handling process 111 related to a higher protocol, a status related message from another process in charge of process state management, and an IPC server (Inter Processor Communication Server) It consists of polling a signal from 117fh in a single thread.

However, such a state management structure should poll each communication point every time to determine the existence of a message and process it, and also delay the processing of the intelligent network protocol while processing the message of the state management unit 113 which is not directly related to the intelligent network service. There was a problem causing.

Accordingly, an object of the present invention is to provide a method for creating a thread for a process state when processing a message in an exchange, and dedicated to processing a state-related message, and for enhancing a protocol processing capability by being dedicated to processing an intelligent network protocol in a main thread.

In the state management method of the exchange according to an embodiment of the present invention for achieving the above object, the main thread of the TPC polls the call processing unit and the IP server to determine the presence of a message, and if there is a message to process the corresponding message and communication Forming a path by checking a path for abnormality, and generating a thread when the TPC generates a processor state processing message, and the generating thread connects a communication path with the call processor and the IP server to determine a message type. Call the function to process and wait if there is no message.

1 is a diagram showing a configuration for processing state management in a conventional exchange

2 is a diagram illustrating a configuration for processing state management of an exchange according to an embodiment of the present invention.

According to an embodiment of the present invention, the TCAP mounted in the AIP in charge of the SSF function in the exchange supports the intelligent network protocol and also performs state management through socket communication with a higher management process. Therefore, the protocol and state processing method according to the embodiment of the present invention improves protocol processing capability by changing protocol processing and state processing to be processed by another thread.

FIG. 2 is a diagram illustrating a structure for performing protocol and state management of an exchange according to an embodiment of the present invention. In the TCAP226, a main thread and a thread for processing a process state related message exist. The main thread of the TCAP226 is dedicated to message processing related to the intelligent network protocol. That is, the main thread processes TC messages from the upper application, N-UNITDATA messages from the IPC server 228, and status related messages. In addition, the thread for processing a state-related message in the TCAP226 interoperates with the upper process state processing unit 224 so that the TCAP226 knows the overall system state.

Accordingly, as shown in FIG. 2, the main thread of the TCAP226 processes messages transmitted from the call processing unit 222 and the IPC server 228 only to process messages related to the intelligent network protocol, and the state processing thread is output from the process state processing unit 224. Process the message so that you know the status of the entire exchange system.

Referring to FIG. 2, according to an embodiment of the present invention, the TCAP226 is composed of a main thread for protocol processing and a thread for processing a process status related message (called a status processing sub thread). The created state processing thread is configured to handle state-related message processing by using the process state processing unit 224 and UNIX domain sockets, and the separation of threads for such state processing messages is performed by the main thread as an intelligent task of TCAP226. Improve your skills. The main thread performs the polling function of the call processor 222 and the polling function of the IPC server 228. The state processing thread creates and processes a thread.

When the process of the TCAP116 is started, the TCAP226 connects a communication path for communication with the corresponding process. Here, the IPC server 228 is connected to the communication path using a library provided by the IPC server 228, and the call processor 222 and the process state processor 224 use a UNIX domain socket. The order in which these communication paths are connected is not important, so we first create a thread during initialization. thr_create (NULL, NULL, (void * (*) (void *) HBTThread, arg, THR_BOUND, tid) After creating an HBThread for processing process status messages, connect the communication path between the intelligent network protocol processor and the IPC server.

The processing configuration in the main thread is performed as follows.

read message from intelligent network protocol processor

if message exit

processing message

else

Check for communication path abnormality

read message from IPC server

if message exist

processing messag

else

Check for communication path abnormality

And HBThread for state processing works as follows.

void HBThread (void * arg)

{

Connecting a communication path with the process state management unit (open_HeartBeat ());

for (;;) construct a persistent thread

read message from process status management

if message is not exist

sleep; To prevent excessive CPU occupancy of a process

else if communication path broken

close file descriptor

re-open communication path (open_HeartBeat ());

else / * if the message exists * /

Determine message type

Update the main thread to recognize the status by calling a function that matches the message type

As described above, in the embodiment of the present invention, the TCAP226 creates a thread for processing a process state, and is dedicated to processing status-related messages, and the main thread is dedicated to processing an intelligent network protocol to improve protocol processing capability.

As described above, according to the embodiment of the present invention, the intelligent network protocol processing capability is improved by separating the thread for processing the intelligent network protocol and the thread for processing the process state related message, even when there is an error in the path of the state related processing unit. There is an advantage that can support stable intelligent network service through stable intelligent network protocol processing without impeding the processing of intelligent network protocol.

Claims (1)

In the state management method of the exchange, The process of the main thread of the TPC polls the call processing unit and the IP server to determine the presence of a message, if there is a message to process the message, and checks the communication path for abnormality to form a path, TPC generates a thread when a processor status processing message occurs, and the generating thread connects a communication path with the call processor and the IP server, determines a message type, calls a corresponding function to process the message, and waits if there is no message. Method of status management of the exchange, characterized in that made.