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January 31, 2026 17:21
- Add GhostConfig structure for customizable configuration - Support disk-backed storage mode as alternative to in-memory compression - Add configurable max_memory_pages to override MAX_PHYSICAL_PAGES constant - Add compress_before_disk option for disk backing mode - Implement cross-platform disk I/O (Windows: CreateFile/ReadFile/WriteFile, Linux: open/read/write) - Update FreezePage() to write compressed pages to disk when enabled - Update page fault handlers to restore pages from disk - Add Initialize() method for configuration before allocation - Add destructor for proper file cleanup - Update demo application with commented disk-backing example - Update API_REFERENCE.md with GhostConfig documentation - Update INTEGRATION_GUIDE.md with disk-backing best practices - Update README.md to explain storage modes - All 25 tests passing
- Add 4 new tests for GhostConfig structure validation - Test default configuration values - Test disk-backed mode with compression - Test disk-backed mode without compression - Test configuration structure compilation - All 29 tests passing
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This pull request introduces full support for disk-backed storage of compressed pages in the GhostMem memory manager, making it possible to swap compressed pages to disk instead of only storing them in RAM. The changes include a new configuration structure (
GhostConfig), updated documentation, a new disk-backed implementation inGhostMemoryManager, and tests for the new feature. The documentation now clearly explains the configuration options, use cases, and performance trade-offs between in-memory and disk-backed modes.Key changes:
1. Disk-Backed Storage Implementation
GhostMemoryManager, including methods for initializing, opening, closing, reading, and writing to a disk file, as well as logic to choose between in-memory and disk-backed storage based on configuration (GhostConfig). [1] [2] [3]2. Configuration System
GhostConfigstructure to allow users to configure disk backing, file path, compression, and maximum in-memory page limits. Added anInitializemethod toGhostMemoryManagerto accept this configuration. [1] [2]3. Documentation Updates
README.mdto describe disk-backed mode, its benefits, configuration, and comparison to in-memory mode. Added code samples and clarified performance trade-offs. [1] [2] [3] [4]4. Testing
tests/test_disk_backing.cppto the build system to ensure disk-backed mode is tested.5. Miscellaneous Improvements
These changes make GhostMem more flexible and suitable for both high-performance and memory-constrained environments, with clear documentation and configuration options for end users.