State Component for Program State Snapshot and Restoration
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Solution Overview
Problem
Current programming languages lack the capability to treat the state of a program as a first-class citizen, making it difficult to analyze and reflect on program behavior, especially in testing and transaction processing, where returning to a prior state is essential but inefficient and cumbersome.
Innovation Solution
The introduction of a state component that allows saving, accessing, and reinstating the state of a program using semantically accessible programming constructs, enabling the program to return to a prior saved state without re-executing actions and supporting both sequential and parallel composition of state updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional debugging methods are used to freeze and examine program state, then variable states can be inspected, but the program execution is interrupted and state restoration is not supported
Solution Approach 1:
The patent creates copies of program state at specific points during execution, storing them as snapshot data structures that can be later restored. This allows inspection of historical states without interrupting current execution, as the original program continues while state copies are maintained separately for analysis and restoration purposes.
2Reliability
If individual variable values are saved during transaction processing, then rollback capability is achieved, but the entire program state cannot be restored and alternative execution paths cannot be explored
Solution Approach 1:
The patent creates a universal state management system that handles both traditional transaction rollback (by restoring individual variable values) and broader program state restoration (by restoring complete program snapshots). The same state component and snapshot data structure support multiple functions including transaction processing, debugging, and exploration of alternative execution paths, providing adaptability across different scenarios.
Solution Approach 2:
The patent saves complete program states at predetermined points before transactions or potential exception points are executed. By capturing the full program state in advance as snapshots, the system prepares restoration data that enables both rollback to pre-transaction states and exploration of alternative execution paths that diverge from the original sequence.
3Adaptability or versatility
If program state is saved for later restoration, then alternative execution paths can be explored, but memory consumption increases
Solution Approach 1:
The patent extracts only the essential state information needed for restoration into snapshot data structures, rather than saving entire program images. The snapshot captures variable values, program counter, and stack information in a compact format, separating the essential restoration data from the full program execution context, thereby reducing memory consumption while maintaining restoration capability.
Data Source
AI summary
A state component saves a present state of a program or model. This state component can be invoked by the program or model itself, thereby making state a first-class citizen. As the state of the program evolves from the saved state, the saved state remains for reflection and recall, for example, for testing, verification, transaction processing, etc. Using a state reference token, the saved state of the program or model can be accessed by the program or model. For example, the program or model by utilizing a state component, can return itself to the saved state. After returning to the saved state, a second execution path can be introduced without requiring re-execution of the actions leading to the saved state. In another example, the state space of an executing model is saved in order to generate inputs required to exercise a program or model.