src/diagnostics.cpp
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|---|---|---|---|
| 1 | /** | ||
| 2 | * @file diagnostics.cpp | ||
| 3 | * @brief Process-wide counters for DMK's intentional leak / detach paths. | ||
| 4 | */ | ||
| 5 | |||
| 6 | #include "DetourModKit/diagnostics.hpp" | ||
| 7 | |||
| 8 | #include <array> | ||
| 9 | #include <atomic> | ||
| 10 | #include <cstddef> | ||
| 11 | |||
| 12 | namespace DetourModKit | ||
| 13 | { | ||
| 14 | namespace Diagnostics | ||
| 15 | { | ||
| 16 | namespace | ||
| 17 | { | ||
| 18 | constexpr std::size_t LEAK_SUBSYSTEM_COUNT = static_cast<std::size_t>(LeakSubsystem::Count); | ||
| 19 | |||
| 20 | // One independent event tally per subsystem. Relaxed throughout: the counters carry no ordering obligation | ||
| 21 | // toward any other state, and each leak site fires at most once per process, so there is no meaningful | ||
| 22 | // contention to order. | ||
| 23 | std::array<std::atomic<std::size_t>, LEAK_SUBSYSTEM_COUNT> s_leak_counts{}; | ||
| 24 | } // namespace | ||
| 25 | |||
| 26 | 21 | void record_intentional_leak(LeakSubsystem subsystem) noexcept | |
| 27 | { | ||
| 28 | 21 | const auto index = static_cast<std::size_t>(subsystem); | |
| 29 |
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21 | if (index >= LEAK_SUBSYSTEM_COUNT) |
| 30 | { | ||
| 31 | 1 | return; | |
| 32 | } | ||
| 33 | 20 | s_leak_counts[index].fetch_add(1, std::memory_order_relaxed); | |
| 34 | } | ||
| 35 | |||
| 36 | 49 | std::size_t intentional_leak_count(LeakSubsystem subsystem) noexcept | |
| 37 | { | ||
| 38 | 49 | const auto index = static_cast<std::size_t>(subsystem); | |
| 39 |
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49 | if (index >= LEAK_SUBSYSTEM_COUNT) |
| 40 | { | ||
| 41 | 1 | return 0; | |
| 42 | } | ||
| 43 | 96 | return s_leak_counts[index].load(std::memory_order_relaxed); | |
| 44 | } | ||
| 45 | |||
| 46 | 11 | std::size_t total_intentional_leaks() noexcept | |
| 47 | { | ||
| 48 | 11 | std::size_t total = 0; | |
| 49 |
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99 | for (const auto &counter : s_leak_counts) |
| 50 | { | ||
| 51 | 176 | total += counter.load(std::memory_order_relaxed); | |
| 52 | } | ||
| 53 | 11 | return total; | |
| 54 | } | ||
| 55 | |||
| 56 | 23 | void reset_intentional_leaks() noexcept | |
| 57 | { | ||
| 58 |
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207 | for (auto &counter : s_leak_counts) |
| 59 | { | ||
| 60 | 184 | counter.store(0, std::memory_order_relaxed); | |
| 61 | } | ||
| 62 | 23 | } | |
| 63 | |||
| 64 | 3516 | EventDispatcher<ScannerFaultEvent> &scanner_faults() | |
| 65 | { | ||
| 66 | // Function-local static: a single process-wide dispatcher constructed on first use, so the stateless | ||
| 67 | // scanner and any consumer share the same subscriber set without a static-init-order dependency. | ||
| 68 |
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3516 | static EventDispatcher<ScannerFaultEvent> dispatcher; |
| 69 | 3516 | return dispatcher; | |
| 70 | } | ||
| 71 | |||
| 72 | 303 | EventDispatcher<HookLifecycleEvent> &hook_lifecycle() | |
| 73 | { | ||
| 74 |
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303 | static EventDispatcher<HookLifecycleEvent> dispatcher; |
| 75 | 303 | return dispatcher; | |
| 76 | } | ||
| 77 | } // namespace Diagnostics | ||
| 78 | } // namespace DetourModKit | ||
| 79 |