299 lines
9.7 KiB
C++
299 lines
9.7 KiB
C++
/*
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* Copyright (c) 2017 - 2018, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "unit_tests/helpers/memory_management.h"
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#include "gtest/gtest.h"
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#include <atomic>
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#include <cstdlib>
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#include <cstring>
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#include <cassert>
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#include <exception>
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#include <iostream>
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#include <new>
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#if defined(__linux__)
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#include <cstdio>
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#include <execinfo.h>
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#elif defined(_WIN32)
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#include <Windows.h>
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#endif
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namespace MemoryManagement {
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size_t failingAllocation = -1;
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std::atomic<size_t> numAllocations(0);
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std::atomic<size_t> indexAllocation(0);
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std::atomic<size_t> indexDeallocation(0);
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bool logTraces = false;
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int fastLeakDetectionMode = 0;
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bool memsetNewAllocations = false;
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AllocationEvent eventsAllocated[maxEvents];
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AllocationEvent eventsDeallocated[maxEvents];
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void *fastEventsAllocated[maxEvents];
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void *fastEventsDeallocated[maxEvents];
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std::atomic<int> fastEventsAllocatedCount(0);
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std::atomic<int> fastEventsDeallocatedCount(0);
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std::atomic<int> fastLeaksDetectionMode(LeakDetectionMode::STANDARD);
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size_t breakOnAllocationEvent = -1;
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size_t breakOnDeallocationEvent = -1;
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// limit size of single allocation in ULT
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const size_t maxAllowedAllocationSize = 128 * 1024 * 1024 + 4096;
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static void onAllocationEvent() {
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/*
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//switch to true to turn on dillignet breakpoint setting place
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bool setBreakPointHereForLeaks = false;
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if (setBreakPointHereForLeaks) {
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if (breakOnAllocationEvent == indexAllocation.load()) {
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//set breakpoint on line below
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setBreakPointHereForLeaks = false;
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}
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}*/
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}
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static void onDeallocationEvent(void *) {
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/*
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//switch to true to turn on dillignet breakpoint setting place
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bool setBreakPointHereForLeaks = false;
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if (setBreakPointHereForLeaks) {
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if (breakOnDeallocationEvent == indexDeallocation.load()) {
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//set breakpoint on line below
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setBreakPointHereForLeaks = false;
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}
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}*/
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}
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void (*deleteCallback)(void *) = onDeallocationEvent;
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template <AllocationEvent::EventType typeValid, AllocationEvent::EventType typeFail>
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static void *allocate(size_t size) {
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onAllocationEvent();
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if (size > maxAllowedAllocationSize) {
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std::cerr << "WARNING: Tried to allocate " << size << " bytes but " << maxAllowedAllocationSize << " is alowed!" << std::endl;
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return nullptr;
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}
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if (!fastLeakDetectionMode) {
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return malloc(size);
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}
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auto indexAllocation = MemoryManagement::indexAllocation.fetch_add(1);
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indexAllocation %= maxEvents;
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auto &eventAllocation = eventsAllocated[indexAllocation];
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eventAllocation.size = size;
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void *p;
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while ((p = malloc(size)) == nullptr) {
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eventAllocation.address = p;
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eventAllocation.event = typeFail;
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throw std::bad_alloc();
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}
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eventAllocation.address = p;
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eventAllocation.event = typeValid;
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#if defined(__linux__)
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eventAllocation.frames = logTraces ? backtrace(eventAllocation.callstack, AllocationEvent::CallStackSize) : 0;
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#elif defined(_WIN32)
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eventAllocation.frames = logTraces ? CaptureStackBackTrace(0, AllocationEvent::CallStackSize, eventAllocation.callstack, NULL) : 0;
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#else
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eventAllocation.frames = 0;
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#endif
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eventAllocation.fastLeakDetectionMode = fastLeakDetectionMode;
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numAllocations++;
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if (fastLeakDetectionMode && p && fastLeaksDetectionMode == LeakDetectionMode::STANDARD) {
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auto currentIndex = fastEventsAllocatedCount++;
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fastEventsAllocated[currentIndex] = p;
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assert(currentIndex <= fastEvents);
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}
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return p;
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}
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template <AllocationEvent::EventType typeValid, AllocationEvent::EventType typeFail>
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static void *allocate(size_t size, const std::nothrow_t &) {
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onAllocationEvent();
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if (size > maxAllowedAllocationSize) {
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std::cerr << "WARNING: Tried to allocate " << size << " bytes but " << maxAllowedAllocationSize << " is alowed!" << std::endl;
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return nullptr;
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}
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if (!fastLeakDetectionMode) {
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return malloc(size);
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}
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auto indexAllocation = MemoryManagement::indexAllocation.fetch_add(1);
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indexAllocation %= maxEvents;
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auto p = indexAllocation == failingAllocation
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? nullptr
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: malloc(size);
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auto &eventAllocation = eventsAllocated[indexAllocation];
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eventAllocation.event = p
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? typeValid
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: typeFail;
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eventAllocation.address = p;
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eventAllocation.size = size;
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#if defined(__linux__)
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eventAllocation.frames = logTraces ? backtrace(eventAllocation.callstack, AllocationEvent::CallStackSize) : 0;
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#elif defined(_WIN32)
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eventAllocation.frames = logTraces ? CaptureStackBackTrace(0, AllocationEvent::CallStackSize, eventAllocation.callstack, NULL) : 0;
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#else
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eventAllocation.frames = 0;
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#endif
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eventAllocation.fastLeakDetectionMode = fastLeakDetectionMode;
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numAllocations += p ? 1 : 0;
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if (fastLeakDetectionMode && p && fastLeaksDetectionMode == LeakDetectionMode::STANDARD) {
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auto currentIndex = fastEventsAllocatedCount++;
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fastEventsAllocated[currentIndex] = p;
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assert(currentIndex <= fastEvents);
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}
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return p;
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}
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template <AllocationEvent::EventType typeValid>
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static void deallocate(void *p) {
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deleteCallback(p);
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if (!fastLeakDetectionMode) {
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if (p) {
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free(p);
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}
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return;
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}
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if (p) {
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auto indexDeallocation = MemoryManagement::indexDeallocation.fetch_add(1);
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indexDeallocation %= maxEvents;
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--numAllocations;
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auto &eventDeallocation = eventsDeallocated[indexDeallocation];
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eventDeallocation.event = typeValid;
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eventDeallocation.address = p;
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eventDeallocation.size = -1;
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#if defined(__linux__)
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eventDeallocation.frames = logTraces ? backtrace(eventDeallocation.callstack, AllocationEvent::CallStackSize) : 0;
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#elif defined(_WIN32)
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eventDeallocation.frames = logTraces ? CaptureStackBackTrace(0, AllocationEvent::CallStackSize, eventDeallocation.callstack, NULL) : 0;
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#else
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eventDeallocation.frames = 0;
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#endif
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eventDeallocation.fastLeakDetectionMode = fastLeakDetectionMode;
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free(p);
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if (fastLeakDetectionMode && p && fastLeaksDetectionMode == LeakDetectionMode::STANDARD) {
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auto currentIndex = fastEventsDeallocatedCount++;
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fastEventsDeallocated[currentIndex] = p;
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assert(currentIndex <= fastEvents);
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}
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}
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}
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int detectLeaks() {
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int indexLeak = -1;
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for (int allocationIndex = 0u; allocationIndex < fastEventsAllocatedCount; allocationIndex++) {
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auto &eventAllocation = fastEventsAllocated[allocationIndex];
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int deallocationIndex = 0u;
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for (; deallocationIndex < fastEventsDeallocatedCount; deallocationIndex++) {
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if (fastEventsDeallocated[deallocationIndex] == nullptr) {
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continue;
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}
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if (fastEventsDeallocated[deallocationIndex] == eventAllocation) {
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fastEventsDeallocated[deallocationIndex] = nullptr;
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break;
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}
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}
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if (deallocationIndex == fastEventsDeallocatedCount) {
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indexLeak = allocationIndex;
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break;
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}
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}
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return indexLeak;
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}
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} // namespace MemoryManagement
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using MemoryManagement::allocate;
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using MemoryManagement::AllocationEvent;
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using MemoryManagement::deallocate;
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NO_SANITIZE
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inline void initMemory(void *p, size_t size) {
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if ((p == nullptr) || (false == MemoryManagement::memsetNewAllocations)) {
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return;
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}
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memset(p, 0, size);
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}
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#if defined(_WIN32)
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#pragma warning(disable : 4290)
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#endif
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void *operator new(size_t size) {
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void *p = allocate<AllocationEvent::EVENT_NEW, AllocationEvent::EVENT_NEW_FAIL>(size);
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initMemory(p, size);
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return p;
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}
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void *operator new(size_t size, const std::nothrow_t &) noexcept {
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void *p = allocate<AllocationEvent::EVENT_NEW_NOTHROW, AllocationEvent::EVENT_NEW_NOTHROW_FAIL>(size, std::nothrow);
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initMemory(p, size);
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return p;
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}
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void *operator new[](size_t size) {
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void *p = allocate<AllocationEvent::EVENT_NEW_ARRAY, AllocationEvent::EVENT_NEW_ARRAY_FAIL>(size);
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initMemory(p, size);
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return p;
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}
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void *operator new[](size_t size, const std::nothrow_t &t) noexcept {
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void *p = allocate<AllocationEvent::EVENT_NEW_ARRAY_NOTHROW, AllocationEvent::EVENT_NEW_ARRAY_NOTHROW_FAIL>(size, std::nothrow);
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initMemory(p, size);
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return p;
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}
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void operator delete(void *p) noexcept {
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deallocate<AllocationEvent::EVENT_DELETE>(p);
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}
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void operator delete[](void *p) noexcept {
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deallocate<AllocationEvent::EVENT_DELETE_ARRAY>(p);
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}
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void operator delete(void *p, size_t size) noexcept {
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deallocate<AllocationEvent::EVENT_DELETE>(p);
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}
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void operator delete[](void *p, size_t size) noexcept {
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deallocate<AllocationEvent::EVENT_DELETE_ARRAY>(p);
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}
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