| 41 | /* ── OS fallback for RSS (ASan builds where MI_OVERRIDE=0) ──── */ |
| 42 | |
| 43 | static size_t os_rss(void) { |
| 44 | #ifdef _WIN32 |
| 45 | PROCESS_MEMORY_COUNTERS pmc; |
| 46 | if (GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc))) { |
| 47 | return (size_t)pmc.WorkingSetSize; |
| 48 | } |
| 49 | return 0; |
| 50 | #elif defined(__APPLE__) |
| 51 | struct mach_task_basic_info info = {0}; |
| 52 | mach_msg_type_number_t count = MACH_TASK_BASIC_INFO_COUNT; |
| 53 | if (task_info(mach_task_self(), MACH_TASK_BASIC_INFO, (task_info_t)&info, &count) == |
| 54 | KERN_SUCCESS) { |
| 55 | return (size_t)info.resident_size; |
| 56 | } |
| 57 | return 0; |
| 58 | #else |
| 59 | FILE *f = fopen("/proc/self/statm", "r"); |
| 60 | if (!f) { |
| 61 | return 0; |
| 62 | } |
| 63 | unsigned long pages = 0; |
| 64 | unsigned long rss_pages = 0; |
| 65 | if (fscanf(f, "%lu %lu", &pages, &rss_pages) != 2) { |
| 66 | rss_pages = 0; |
| 67 | } |
| 68 | (void)fclose(f); |
| 69 | long ps = sysconf(_SC_PAGESIZE); |
| 70 | return rss_pages * (ps > 0 ? (size_t)ps : CBM_SZ_4K); |
| 71 | #endif |
| 72 | } |
| 73 | |
| 74 | /* ── Pressure logging (hysteresis) ────────────────────────────── */ |
| 75 |
no outgoing calls
no test coverage detected