Debug Agent Thread Identifier Mapping for Carried Threads
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Solution Overview
Problem
Existing debugging systems for multi-threaded applications face challenges in providing effective debugging support for carried threads, as they often ignore or fail to identify and manage the complex relationships between carrier and carried threads, leading to inefficient communication of events and commands, and inconsistent debug configurations.
Innovation Solution
A debugging system that includes a debug agent capable of converting between identifiers of carried threads and carrier threads for event notifications and action commands, ensuring selective notification and consistent debug configuration management across multiple carrier threads associated with a carried thread, by maintaining thread object-identifier mappings and managing active and recorded debug configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a debugging system provides comprehensive event notifications and commands for all threads, then debugging completeness is improved, but system complexity and information overload increase
Solution Approach 1:
The patent segments thread identification into two distinct types: carrier thread identifiers and carried thread identifiers. The debugging system processes events and commands differently based on the thread type, allowing comprehensive debugging coverage while maintaining clear distinction between thread roles. This segmentation enables the system to handle complex multi-threaded scenarios without overwhelming complexity.
Solution Approach 2:
The patent introduces a mapping mechanism that acts as an intermediary between carrier thread identifiers and carried thread identifiers. This mapping table translates and correlates the two identifier types, enabling the debugging system to accurately associate events and commands with the appropriate threads while maintaining a manageable information structure that prevents overload.
2Measurement precision
If a debugging system manages detailed relationships between carrier and carried threads, then debugging accuracy is improved, but information processing overhead increases
Solution Approach 1:
The patent establishes mapping relationships between carrier thread identifiers and carried thread identifiers in advance, before debugging operations begin. This preliminary setup of the mapping table allows the system to quickly resolve thread associations during actual debugging events without performing complex real-time analysis, thereby maintaining high accuracy while minimizing processing overhead.
3Reliability
If a debugging system notifies the debugger of all thread events, then event coverage is improved, but debugger workload increases
Solution Approach 1:
The patent inverts the traditional debugging notification model by having the agent translate carried thread events into carrier thread events for debugger notification. Instead of the debugger directly handling all thread events, the system transforms events from the carried thread perspective to the carrier thread perspective, reducing the number of separate notifications while maintaining complete event coverage through the mapping relationship.
Data Source
AI summary
Providing debugging support for a carried thread are disclosed. A debug agent converts between identifiers of carried threads and carrier threads. Further, a debug agent transfers debug configurations amongst multiple carrier threads associated with a same carried thread. With respect to debug configuration transfers, an agent receives, from a debugger, a command to set an active debug configuration for a carrier thread on which a carried thread is mounted. Responsive to determining that the carried thread is unmounted, the agent stores the active debug configuration for the carrier thread as a recorded debug configuration associated with the carried thread. The agent transmits a command to reset the active debug configuration on the carrier thread. Responsive to determining that the carried thread is mounted on a carrier thread, the agent retrieves the recorded debug configuration. The agent restores the recorded debug configuration as an active debug configuration on the current carrier thread.