74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
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#include "memutils.h"
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#include <psapi.h>
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#include "util/logging.h"
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namespace memutils {
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inline static MEMORYSTATUSEX get_mem_status() {
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MEMORYSTATUSEX mem_status{};
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mem_status.dwLength = sizeof(MEMORYSTATUSEX);
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GlobalMemoryStatusEx(&mem_status);
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return mem_status;
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}
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inline static PROCESS_MEMORY_COUNTERS_EX get_mem_counters() {
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PROCESS_MEMORY_COUNTERS_EX pmc{};
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GetProcessMemoryInfo(GetCurrentProcess(), (PPROCESS_MEMORY_COUNTERS) &pmc, sizeof(pmc));
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return pmc;
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}
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DWORDLONG mem_total() {
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return get_mem_status().ullTotalPhys;
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}
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DWORDLONG mem_total_used() {
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auto status = get_mem_status();
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return status.ullTotalPhys - status.ullAvailPhys;
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}
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DWORDLONG mem_used() {
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return get_mem_counters().WorkingSetSize;
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}
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DWORDLONG vmem_total() {
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return get_mem_status().ullTotalPageFile;
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}
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DWORDLONG vmem_total_used() {
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auto status = get_mem_status();
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return status.ullTotalPageFile - status.ullAvailPageFile;
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}
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DWORDLONG vmem_used() {
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return get_mem_counters().PrivateUsage;
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}
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VProtectGuard::VProtectGuard(void *addr, size_t size, DWORD mode, bool reset)
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: addr(addr), reset(reset), size(size)
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{
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if (!VirtualProtect(this->addr, this->size, mode, &this->old_protect)) {
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auto error = GetLastError();
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log_warning("memutils", "VirtualProtect failed: {}", error);
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if (error == ERROR_INVALID_ADDRESS) {
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this->bad_address = true;
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}
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}
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}
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VProtectGuard::~VProtectGuard() {
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this->dispose();
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}
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void VProtectGuard::dispose() {
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if (this->reset && this->addr != nullptr) {
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DWORD tmp;
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if (!VirtualProtect(this->addr, this->size, this->old_protect, &tmp)) {
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log_warning("memutils", "VirtualProtect failed: {}", GetLastError());
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}
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this->addr = nullptr;
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}
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}
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}
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