Multi-task system for controlling execution of application sessions and reservation of resources

A method for executing application sessions in an electronic device with one or more processors for synchronizing resource reservation instances as well as the execution of substantially simultaneous application sessions, wherein the application session to be executed comprises one or more activity blocks in one or more activity block containers, and an execution order is determined for said activity blocks, the method comprising at least the following:

• resource management and allocation for requesting and reserving resources for the application session,
• bookkeeping and analysis for saving and analysing the resource reservation situation,
• scheduling and selection for selecting the next application session and activity block to be executed at least on the basis of said resource reservation situation,
• executing the next activity block in the course of the selected application session,
• wherein in the method, a communication protocol connecting said resource management and allocation, bookkeeping and analysis, scheduling and selection, and the executing are used to control the execution order and, if necessary, to transfer information between said resource management and allocation, bookkeeping and analysis, scheduling and selection, and executing
• wherein in the method, an operating system is utilized comprising task switching functions, and that for synchronizing the reservation, release and other resource-related control from the application session management and scheduling manager, activity block containers, resource allocation manager and the resource handlers, there is a session control protocol comprised of application-independent control messages and rules on use thereof, which is arranged, during operation, to implement synchronization and scheduling control of the execution of the application session management and scheduling manager, the activity block containers, the resource allocation manager, as well as the resource handlers, on the basis of the task switching functions of the operating system as well as the task priorities of the operating system defined for the application session management and scheduling manager, the activity block containers, the resource allocation manager, and the resource handlers, wherein a bookkeeping of the resource allocation is maintained, and a first control message is transmitted to an activity block to provide control information on the resource allocation at the time of the initiation of the activity block, and a second control message is returned by the activity block to provide information about the resources reserved or released by the activity block to update bookkeeping of the resource allocation situation after the completion of each activity block, wherein the resources needed by each activity block are reserved and released by the application session, either directly from resource type specific resource handlers or from the resource allocation manager that enable the queuing of reservation request messages, on the basis of control parameters received in a first control message received from application session management and scheduling manager, wherein second control messages are used by the application session to dynamically assign resource reservation instances to the use of different activity block containers involved in the execution of the session, as needed, wherein an end state module is placed at the end of each activity block to complete the execution of the block, and a waiting state module is placed in the activity block container holding the activity block, and the execution control of the activity block container holding the activity block generates a second control message in the end state module and pauses the execution in the waiting state module in order to wait for an first control message from the application session management and scheduling manager, wherein the execution of the application session is temporarily interrupted regarding the current activity block container.

An electronic device comprising one or more processors configured to execute application sessions, and configured to schedule resource reservation instances as well as the execution of substantially simultaneous application sessions, wherein the application session to be executed comprises one or more activity blocks in one or more activity block containers, and an execution order is determined for said activity blocks;

• the electronic device further comprising resource type specific resource handlers for reserving resources for the application session, resource allocation manager for analyzing and saving a resource allocation situation, application session management and scheduling manager for selecting at least the next application session and activity block to be executed based on said resource allocation situation, and for executing a next activity block in the course of the selected application session;
• and the electronic device is provided with a protocol connecting the resource handlers, resource allocation manager, application session management and scheduling manager to control the execution order and to implement transfer of information between said resource handlers, resource allocation manager, application session management and scheduling manager, the electronic device further comprising an operating system with scheduling functions, and for synchronizing reservation, release and other resource-related control from the application session management and scheduling manager, activity block containers, resource allocation manager, and resource handlers, wherein there is a session control protocol provided comprising application-independent control messages and rules on use thereof, that is arranged during its operation to implement synchronization and scheduling control of execution of the application session management and scheduling manager, the activity block containers, the resource allocation manager, as well as the resource handlers, on the basis of the task switching functions of the operating system as well as operating system task priorities defined for the application session management and scheduling manager, the activity block containers, the resource allocation manager, and the resource handlers, said device configured for bookkeeping of the resource allocation situation, configured for transmitting a first control message to an activity block to provide control information on the resource allocation to the activity block at the time of the initiation of the activity block, and for transmitting a second control message at the time of the completion of the execution of the activity block to provide information about the resources reserved or released by the activity block to update the bookkeeping of the resource allocation situation after the completion of each activity block, said device configured for an application session to reserve the resources needed by each activity block, as well as to release them, either directly from the resource type specific resource handlers or from the resource allocation manager that enable the queuing of reservation request messages, on the basis of control parameters received in a first control message received from application session management and scheduling manager, said device configured for making the resource reservation instances created on a request from the application session, via the use of second control messages, dynamically available to different activity block containers involved in the execution of the session, as needed, wherein an end state module is placed at the end of each activity block to complete the execution of the block, and a waiting state module is placed in the activity block container holding the activity block, and that the execution control of the activity block container holding the activity block is arranged to generate a second control message in the end state module and to pause the execution in the waiting state module in order to wait for a first control message from the application session management and scheduling manager, wherein the execution of the application session is temporarily interrupted regarding the current activity block container.

A wireless communication device comprising one or more processors configured to execute application sessions, and configured to schedule resource reservation instances as well as execution of substantially simultaneous application sessions, wherein an application session to be executed comprises one or more activity blocks in one or more activity block containers, and an execution order is determined for said activity blocks;

• the wireless communication device further comprising resource type specific resource handlers for reserving resources for the application session, resource allocation manager for analyzing and saving a resource allocation situation, application session management and scheduling manager for selecting at least a next application session and activity block to be executed based on said resource allocation situation, and for executing the next activity block in the course of the selected application session;
• and the electronic device is provided with a protocol connecting the resource handlers, resource allocation manager, application session management and scheduling manager, to control the execution order and to implement the transfer of information between said resource handlers, resource allocation manager, application session management and scheduling manager, the wireless communication device further comprising an operating system with scheduling functions, and for synchronizing reservation, release and other resource-related control from the application session management and scheduling manager, activity block containers, resource allocation manager, and resource handlers, and comprising a session control protocol comprised of application-independent control messages and rules on their use, which is arranged during operation to implement the synchronization and scheduling control of execution of the application session management and scheduling manager, the activity block containers, the resource allocation manager, as well as the resource handlers, based on the task switching functions of the operating system as well as the operating system task priorities defined for the application session management and scheduling manager, the activity block containers, the resource allocation manager, and the resource handlers, said device configured for bookkeeping of the resource allocation situation, configured for transmitting a first control message to an activity block to provide control information on the resource allocation to the activity block at the time of the initiation of the activity block, and for transmitting a second control message at the time of the completion of the execution of the activity block to provide information about the resources reserved or released by the activity block to update the bookkeeping of the resource allocation situation after the completion of each activity block, said device configured for making the resource reservation instances created on a request from the application session, via the use of second control messages, dynamically available to different activity block containers involved in the execution of the session, as needed, said device configured for an application session to reserve the resources needed by each activity block, as well as to release them, either directly from the resource type specific resource handlers or from the resource allocation manager that enable the queuing of reservation request messages, on the basis of control parameters received in a first control message received from application session management and scheduling manager, wherein an end state module is placed at the end of each activity block to complete the execution of the block, and a waiting state module is placed in the activity block container holding the activity block, and that the execution control of the activity block container holding the activity block is arranged to generate a second control message in the end state module and to pause the execution in the waiting state module in order to wait for a first control message from the application session management and scheduling manager, wherein the execution of the application session is temporarily interrupted regarding the current activity block container.

A computer readable medium having a computer program stored thereon comprising machine executable instructions for executing application sessions in an electronic device with one or more processors for synchronizing resource reservation instances as well as the execution of substantially simultaneous application sessions, wherein the application session to be executed comprises one or more activity blocks in one or more activity block containers, and an execution order is determined for said activity blocks, the computer program further comprising machine executable instructions for performing at least the following:

• requesting and reserving resources for the application, session,
• saving and analyzing the resource reservation situation,
• selecting the next application session and activity block to be executed at least on the basis of said resource reservation situation,
• executing the next activity block in the course of the selected application session,
• wherein the computer program also comprises machine executable instructions for using a communication protocol connecting said requesting and reserving resources for the application session, saving and analyzing the resource reservation situation, selecting the next application session and activity block to be executed, and executing the next activity blocks, wherein the computer program is configured to utilize an operating system comprising task switching functions, and that for synchronizing reservation, release and other resource-related control from an application session management and scheduling manager, activity block containers, resource allocation manager and the resource handlers, there is provided a session control protocol comprised of application-independent control messages and rules on use thereof, which is arranged, during operation, to implement synchronization and scheduling control of execution of the application session management and scheduling manager, the activity block containers, the resource allocation manager, as well as the resource handlers, based on the task switching functions of the operating system as well as operating system task priorities defined for the application session management and scheduling manager, the activity block containers, the resource allocation manager, and the resource handlers, wherein a bookkeeping of the resource allocation is maintained, and a first control message is transmitted to an activity block to provide control information on the resource allocation at the time of the initiation of the activity block, and a second control message is returned by the activity block to provide information about the resources reserved or released by the activity block to update the bookkeeping of the resource allocation situation after the completion of each activity block, wherein the resources needed by each activity block are reserved and released by the application session, either directly from resource type specific resource handlers or from the resource allocation manager that enable the queuing of reservation request messages, on the basis of control parameters received in a first control message received from application session management and scheduling manager, said device configured for making the resource reservation instances created on a request from the application session, via the use of second control messages, dynamically available to different activity block containers involved in the execution of the session, as needed, wherein an end state module is placed at the end of each activity block to complete the execution of the block, and a waiting state module is placed in the activity block container holding the activity block, and that the execution control of the activity block container holding the activity block is arranged to generate a second control message in the end state module and to pause the execution in the waiting state module in order to wait for a first control message from the application session management and scheduling manager, wherein the execution of the application session is temporarily interrupted regarding the current activity block container.

An electronic device comprising means for executing application sessions, one or more processors, and means for scheduling resource reservation instances as well as the execution of substantially simultaneous application sessions, wherein the application session to be executed comprises one or more activity blocks in one or more activity block containers, and an execution order is determined for said activity blocks;

• the electronic device further comprising resource type specific resource handlers for reserving resources for the application session, resource allocation manager for analyzing and saving a resource allocation situation, application session management and scheduling means for selecting at least the next application session and activity block to be executed on the basis of said resource allocation situation, executing means for executing the next activity block in the course of the selected application session;
• and the electronic device is provided with a protocol connecting the resource handlers, resource allocation manager, application session management and scheduling means and executing means, to control the execution order and to implement the transfer of information between said resource handlers, resource allocation manager, application session management and scheduling means, and executing means, the electronic device further comprising an operating system with scheduling functions, and for synchronizing the reservation, release and other resource-related control from the application session management and scheduling means, activity block containers, resource allocation manager, and resource handlers, there is a session control protocol composed of application-independent control messages and rules on use thereof, that is arranged during its operation to implement synchronization and scheduling control of execution of the application session management and scheduling means, the activity block containers, the resource allocation manager, as well as the resource handlers, on the basis of the task switching functions of the operating system as well as the operating system task priorities defined for the application session management and scheduling means, the activity block containers, the resource allocation manager, and the resource handlers, said device configured for bookkeeping of the resource allocation situation, configured for transmitting a first control message to an activity block to provide control information on the resource allocation to the activity block at the time of the initiation of the activity block, and for transmitting a second control message at the time of the completion of the execution of the activity block to provide information about the resources reserved or released by the activity block to update the bookkeeping of the resource allocation situation after the completion of each activity block, said device configured for making the resource reservation instances created on a request from the application session, via the use of second control messages, dynamically available to different activity block containers involved in the execution of the session, as needed, said system configured for an application session to reserve the resources needed by each activity block, as well as to release them, either directly from the resource type specific resource handlers or from the resource allocation manager that enable the queuing of reservation request messages, on the basis of control parameters received in a first control message received from application session management and scheduling manager, wherein an end state module is placed at the end of each activity block to complete the execution of the block, and a waiting state module is placed in the activity block container holding the activity block, and that the execution control of the activity block container holding the activity block is arranged to generate a second control message in the end state module and to pause the execution in the waiting state module in order to wait for a first control message from the application session management and scheduling manager, wherein the execution of the application session is temporarily interrupted regarding the current activity block container.