System for processing wireless connections using connection handles
View Patent ↗The present invention relates to a method for controlling connections in the gateway of a wireless system, such as the WAP system, which gateway comprises means for implementing the protocol layers. The method is characterized in that it assigns a connection handle to each connection upon the establishment of the connection, in order to identify the connection, maintains a reference count for each connection on the basis of certain conditions that pertain to the connection handle in order to control the connections, increases the value of the reference count of the connection by one unit upon the creation of a protocol object for the connection handle, reduces the value of the reference count of the connection by one unit upon the elimination of the protocol object created for the connection, and releases the connection, and the connection handle which is related to this connection, when the reference count of the connection receives the value zero. The said invention also relates to the said gateway, a computer program which is connected with the method, and a memory in which the computer program is located.
1. In a gateway, functionally coupled with a radio interface, and having means for implementing a certain protocol layer, a method for controlling connections comprising the steps of:
assigning a connection handle for each connection upon establishment of the connection, in order to identify the connection,
maintaining a reference count having a value for each connection in order to control connections, on the basis of certain criteria that pertain to the connection handle,
increasing the value of the connection reference count by one unit upon realisation of a first criterion,
reducing the value of the connection reference count by one unit upon the realisation of a second criterion,
releasing the connection and the related connection handle upon the realisation of a third criterion that pertains to the reference count, wherein said third criterion is realized upon the reference count receiving the value zero.
2. A method according to claim 1 , wherein the said connection handle is an integer.
3. A method according to claim 2 , wherein the connection handle is sent to the protocol layer as a response to a subroutine call made by the said protocol layer.
4. A method according to claim 1 , wherein the said value of the reference count is an integer and that the said unit is integer 1.
5. A method according to claim 4 , wherein the said first criterion is realised upon the creation of a protocol object for the connection handle.
6. A method according to claim 4 , wherein the said second criterion is realised upon the elimination of the protocol object created for the connection handle.
7. A method according to claim 1 , wherein the method comprises controlling connections to WAP terminals (Wireless Application Protocol) and wherein the said gateway is a gateway of a WAP system.
8. A gateway (functionally coupled with a radio interface for transmitting messages between a wireless terminal and a server, the gateway having a protocol layer for processing messages, the gateway comprising:
means for assigning a connection handle to each connection upon the establishment of the connection, in order to identify the connection,
means for maintaining a reference count having a value for each connection in order to control the connections on the basis of certain criteria that pertain to the connection handle,
means for increasing the value of the connection reference count by one unit upon realisation of a first criterion,
means for reducing the value of the connection reference count by one unit upon realisation of a second criterion,
means for releasing the connection, and the related connection handle upon the realisation of a third criterion that pertains to the reference count, wherein said third criterion is realized upon the reference count receiving the value zero.
9. A computer program product, executable by means of a computer, for controlling connections in a gateway functionally coupled with a radio interface and having means for implementing a certain protocol layer, the computer program product comprising:
means for assigning a connection handle to each connection upon establishment of the connection, in order to identify the connection,
means for maintaining a reference count for each connection, the reference count having a value, in order to control the connections on the basis of certain criteria that pertain to the connection handle,
means for increasing the value of the connection reference count by one unit upon realisation of a first criterion,
means for reducing the value of the connection reference count by one unit upon realisation of a second criterion,
means for releasing the connection and the related connection handle upon realisation of a third criterion that pertains to the reference count, wherein said third criterion is realized upon the reference count receiving the value zero.
10. A memory readable by means of a computer, in which memory a computer program has been stored for controlling connections in a gateway functionally coupled with a radio interface and having means for implementing a certain protocol layer, wherein, upon execution of the computer program,
a connection handle is assigned to each connection upon establishment of the connection, in order to identify the said connection,
a reference count having a value is maintained for each connection in order to control the connections on the basis of certain criteria that pertain to the connection handle,
the value of the connection reference count is increased by one unit upon realisation of a first criterion,
the value of the connection reference count is reduced by one unit upon realisation of a second criterion,
the connection and the related connection handle are released upon realisation of a third criterion that pertains to the reference count, wherein said third criterion is realized upon the reference count receiving the value zero.
11. A method according to claim 1 , wherein the reference count indicates how many protocol layer protocol objects or gateway applications are using the connection in question.
12. A method according to claim 1 , wherein a connection handle specific to each connection is sent with a protocol message from said protocol layer to another protocol layer of the gateway to identify a connection.
13. A gateway according to claim 8 , wherein the first criterion is realised upon creation of a protocol object for the connection handle.
14. A gateway according to claim 8 , wherein the second criterion is realised upon elimination of the protocol object created for the connection handle.
15. A gateway according to claim 8 , wherein the third criterion is realised upon the reference count getting the value zero.
16. A gateway according to claim 8 , wherein the gateway is a gateway of a WAP system.
17. A gateway according to claim 8 , wherein the reference count indicates how many protocol layer protocol objects and/or gateway applications are using the connection in question.
18. A gateway according to claim 8 , wherein the gateway comprises means for sending a connection handle specific to each connection with a protocol message from said protocol layer to another protocol layer of the gateway to identify a connection.