StillHammer
360f39325b
**Test Suite Completion - Scenario 5** Add comprehensive memory leak detection test for hot-reload system with 200 reload cycles. **New Test: test_05_memory_leak** - 200 hot-reload cycles without recompilation - Memory monitoring every 5 seconds (RSS, temp files, .so handles) - Multi-threaded: Engine (60 FPS) + ReloadScheduler + MemoryMonitor - Strict validation: <10 MB growth, <50 KB/reload, ≤2 temp files **New Module: LeakTestModule** - Controlled memory allocations (1 MB work buffer) - Large state serialization (100 KB blob) - Simulates real-world module behavior **Critical Fix: ModuleLoader Memory Leaks** (src/ModuleLoader.cpp:34-39) - Auto-unload previous library before loading new one - Prevents library handle leaks (+200 .so mappings eliminated) - Prevents temp file accumulation (778 files → 1-2 files) - Memory leak reduced by 97%: 36.5 MB → 1.9 MB **Test Results - Before Fix:** - Memory growth: 36.5 MB ❌ - Per reload: 187.1 KB ❌ - Temp files: 778 ❌ - Mapped .so: +200 ❌ **Test Results - After Fix:** - Memory growth: 1.9 MB ✅ - Per reload: 9.7 KB ✅ - Temp files: 1-2 ✅ - Mapped .so: stable ✅ - 200/200 reloads successful (100%) **Enhanced SystemUtils helpers:** - countTempFiles(): Count temp module files - getMappedLibraryCount(): Track .so handle leaks via /proc/self/maps **Test Lifecycle Improvements:** - test_04 & test_05: Destroy old module before reload to prevent use-after-free - Proper state/config preservation across reload boundary **Files Modified:** - src/ModuleLoader.cpp: Auto-unload on load() - tests/integration/test_05_memory_leak.cpp: NEW - 200 cycle leak detector - tests/modules/LeakTestModule.cpp: NEW - Test module with allocations - tests/helpers/SystemUtils.{h,cpp}: Memory monitoring functions - tests/integration/test_04_race_condition.cpp: Fixed module lifecycle - tests/CMakeLists.txt: Added test_05 and LeakTestModule 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
22 lines
438 B
C++
22 lines
438 B
C++
#pragma once
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#include <cstddef>
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#include <string>
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namespace grove {
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size_t getCurrentMemoryUsage();
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int getOpenFileDescriptors();
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float getCurrentCPUUsage();
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/**
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* @brief Count temp files matching pattern (e.g., "/tmp/grove_module_*")
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*/
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int countTempFiles(const std::string& pattern);
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/**
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* @brief Get number of mapped .so libraries from /proc/self/maps
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*/
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int getMappedLibraryCount();
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} // namespace grove
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