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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "common.h"
#include "datasegment.h"
#include "allocchunk.h"
#include "globalpool.h"
#include "threadpool.h"
#include "threadlist.h"
#include "threadproxy.h"
namespace vespamalloc {
template <typename MemBlockPtrT, typename ThreadListT>
class MemoryManager : public IAllocator
{
public:
MemoryManager(size_t logLimitAtStart);
~MemoryManager() override;
bool initThisThread() override;
bool quitThisThread() override;
void enableThreadSupport() override;
void setReturnAddressStop(const void * returnAddressStop) override {
MemBlockPtrT::Stack::setStopAddress(returnAddressStop);
}
size_t getMaxNumThreads() const override { return _threadList.getMaxNumThreads(); }
int mallopt(int param, int value);
void *malloc(size_t sz);
void *malloc(size_t sz, std::align_val_t);
void *realloc(void *oldPtr, size_t sz);
void free(void *ptr) {
freeSC(ptr, _segment.sizeClass(ptr));
}
void free(void *ptr, size_t sz) {
freeSC(ptr, MemBlockPtrT::sizeClass(MemBlockPtrT::adjustSize(sz)));
}
void free(void *ptr, size_t sz, std::align_val_t alignment) {
freeSC(ptr, MemBlockPtrT::sizeClass(MemBlockPtrT::adjustSize(sz, alignment)));
}
size_t getMinSizeForAlignment(size_t align, size_t sz) const { return MemBlockPtrT::getMinSizeForAlignment(align, sz); }
size_t sizeClass(const void *ptr) const { return _segment.sizeClass(ptr); }
size_t usable_size(void *ptr) const {
return MemBlockPtrT::usable_size(ptr, _segment.getMaxSize(ptr));
}
void *calloc(size_t nelm, size_t esz) {
void * ptr = malloc(nelm * esz);
if (ptr) {
memset(ptr, 0, nelm * esz);
}
return ptr;
}
void info(FILE * os, size_t level=0) __attribute__ ((noinline));
void setupSegmentLog(size_t bigMemLogLevel, size_t bigLimit, size_t bigIncrement, size_t allocs2Show) {
_segment.setupLog(bigMemLogLevel, bigLimit, bigIncrement, allocs2Show);
}
void setupLog(size_t prAllocLimit) {
_prAllocLimit = prAllocLimit;
}
void setParams(size_t threadCacheLimit) {
_threadList.setParams(threadCacheLimit);
_allocPool.setParams(threadCacheLimit);
}
const DataSegment<MemBlockPtrT> & dataSegment() const { return _segment; }
private:
void freeSC(void *ptr, SizeClassT sc);
void crash() __attribute__((noinline));;
typedef AllocPoolT<MemBlockPtrT> AllocPool;
typedef typename ThreadListT::ThreadPool ThreadPool;
size_t _prAllocLimit;
DataSegment<MemBlockPtrT> _segment;
AllocPool _allocPool;
ThreadListT _threadList;
};
template <typename MemBlockPtrT, typename ThreadListT>
MemoryManager<MemBlockPtrT, ThreadListT>::MemoryManager(size_t logLimitAtStart) :
IAllocator(),
_prAllocLimit(logLimitAtStart),
_segment(),
_allocPool(_segment),
_threadList(_allocPool)
{
setAllocatorForThreads(this);
initThisThread();
Mutex::allowRecursion();
}
template <typename MemBlockPtrT, typename ThreadListT>
MemoryManager<MemBlockPtrT, ThreadListT>::~MemoryManager() = default;
template <typename MemBlockPtrT, typename ThreadListT>
bool MemoryManager<MemBlockPtrT, ThreadListT>::initThisThread()
{
bool retval(_threadList.initThisThread());
if ( retval ) {
// ThreadPool & tp = _threadList.getCurrent();
// tp.init(_threadList.getThreadId());
} else {
abort();
}
return retval;
}
template <typename MemBlockPtrT, typename ThreadListT>
bool MemoryManager<MemBlockPtrT, ThreadListT>::quitThisThread()
{
return _threadList.quitThisThread();
}
template <typename MemBlockPtrT, typename ThreadListT>
void MemoryManager<MemBlockPtrT, ThreadListT>::enableThreadSupport()
{
_segment.enableThreadSupport();
_allocPool.enableThreadSupport();
_threadList.enableThreadSupport();
}
template <typename MemBlockPtrT, typename ThreadListT>
void MemoryManager<MemBlockPtrT, ThreadListT>::crash()
{
fprintf(stderr, "vespamalloc detected unrecoverable error.\n");
#if 0
if (_invalidMemLogLevel > 0) {
static size_t numRecurse=0;
if (numRecurse++ == 0) {
MemBlockPtrT::dumpInfo(_invalidMemLogLevel);
}
numRecurse--;
}
sleep(1);
#else
abort();
#endif
}
template <typename MemBlockPtrT, typename ThreadListT>
void MemoryManager<MemBlockPtrT, ThreadListT>::info(FILE * os, size_t level)
{
fprintf(os, "DataSegment at %p(%ld), AllocPool at %p(%ld), ThreadList at %p(%ld)\n",
&_segment, sizeof(_segment), &_allocPool, sizeof(_allocPool),
&_threadList, sizeof(_threadList));
_segment.info(os, level);
_allocPool.info(os, level);
_threadList.info(os, level);
fflush(os);
}
template <typename MemBlockPtrT, typename ThreadListT>
int MemoryManager<MemBlockPtrT, ThreadListT>::mallopt(int param, int value) {
return _threadList.getCurrent().mallopt(param, value);
}
template <typename MemBlockPtrT, typename ThreadListT>
void * MemoryManager<MemBlockPtrT, ThreadListT>::malloc(size_t sz)
{
MemBlockPtrT mem;
ThreadPool & tp = _threadList.getCurrent();
tp.malloc(mem.adjustSize(sz), mem);
if (!mem.validFree()) {
fprintf(stderr, "Memory %p(%ld) has been tampered with after free.\n", mem.ptr(), mem.size());
crash();
}
mem.setExact(sz);
mem.alloc(_prAllocLimit<=mem.adjustSize(sz));
return mem.ptr();
}
template <typename MemBlockPtrT, typename ThreadListT>
void * MemoryManager<MemBlockPtrT, ThreadListT>::malloc(size_t sz, std::align_val_t alignment)
{
MemBlockPtrT mem;
ThreadPool & tp = _threadList.getCurrent();
tp.malloc(mem.adjustSize(sz, alignment), mem);
if (!mem.validFree()) {
fprintf(stderr, "Memory %p(%ld) has been tampered with after free.\n", mem.ptr(), mem.size());
crash();
}
mem.setExact(sz, alignment);
mem.alloc(_prAllocLimit<=mem.adjustSize(sz, alignment));
return mem.ptr();
}
template <typename MemBlockPtrT, typename ThreadListT>
void MemoryManager<MemBlockPtrT, ThreadListT>::freeSC(void *ptr, SizeClassT sc)
{
if (MemBlockPtrT::verifySizeClass(sc)) {
ThreadPool & tp = _threadList.getCurrent();
MemBlockPtrT mem(ptr);
mem.readjustAlignment(_segment);
if (mem.validAlloc()) {
mem.free();
tp.free(mem, sc);
} else if (mem.validFree()) {
fprintf(stderr, "Already deleted %p(%ld).\n", mem.ptr(), mem.size());
// MemBlockPtrT::dumpInfo(_doubleDeleteLogLevel);
crash();
} else {
fprintf(stderr, "Someone has tamper with my pre/post signatures of my memoryblock %p(%ld).\n", mem.ptr(), mem.size());
crash();
}
} else {
fprintf(stderr, "%p not allocated here, can not be freed\n", ptr);
crash();
}
}
template <typename MemBlockPtrT, typename ThreadListT>
void * MemoryManager<MemBlockPtrT, ThreadListT>::realloc(void *oldPtr, size_t sz)
{
void *ptr(nullptr);
if (oldPtr) {
MemBlockPtrT mem(oldPtr);
mem.readjustAlignment(_segment);
if (! mem.validAlloc()) {
fprintf(stderr, "Someone has tamper with my pre/post signatures of my memoryblock %p(%ld).\n", mem.ptr(), mem.size());
crash();
}
SizeClassT sc(_segment.sizeClass(oldPtr));
if (sc >= 0) {
size_t oldSz(_segment.getMaxSize(oldPtr));
if (sz > oldSz) {
ptr = malloc(sz);
if (ptr) {
memcpy(ptr, oldPtr, oldSz);
free(oldPtr);
}
} else {
mem.setExact(sz);
ptr = oldPtr;
}
} else {
ptr = malloc(sz);
if (ptr) {
memcpy(ptr, oldPtr, sz);
}
}
} else {
ptr = malloc(sz);
}
PARANOID_CHECK2( { MemBlockPtrT mem(ptr); mem.readjustAlignment(_segment); if (! mem.validAlloc()) { crash(); } });
return ptr;
}
}
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