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//-----------------------------------------------------------------------------
// Name: allocation.cpp
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//-----------------------------------------------------------------------------
#include "allocation.h"
#include <Internal/error.h>
#include <cstdlib>
#if MONITOR_MEMORY
// POSIX variant, win version necessary.
#include <pthread.h>
static pthread_mutex_t fastmutex = PTHREAD_MUTEX_INITIALIZER;
static uint64_t total_memory_allocations[OG_MALLOC_TYPE_COUNT] = {0};
static size_t allocations_count = 0;
static uint32_t allocations_this_frame = 0;
struct Allocations {
void* ptr;
size_t size;
uint8_t source_id;
};
const int MAX_ALLOCATIONS = 1024 * 16;
Allocations allocations[MAX_ALLOCATIONS] = {NULL, 0};
const char* OgMallocTypeString(uint8_t type) {
switch (type) {
case OG_MALLOC_GEN:
return "Generic";
case OG_MALLOC_NEW:
return "new";
case OG_MALLOC_NEW_ARR:
return "new []";
case OG_MALLOC_RC:
return "Recast";
case OG_MALLOC_DT:
return "Detour";
default:
return "Unknown";
}
}
void* og_malloc(size_t size, uint8_t source_id) {
if (source_id >= OG_MALLOC_TYPE_COUNT) {
source_id = 0;
}
if (size > 100 * 1024 * 1024) {
printf("Allocating more than 100 MiB of memory\n");
}
void* ptr = malloc(size);
pthread_mutex_lock(&fastmutex);
if (allocations_count < MAX_ALLOCATIONS) {
int64_t alloc_index;
alloc_index = allocations_count;
while (allocations[alloc_index].ptr != NULL && alloc_index >= 0) {
alloc_index--;
}
if (alloc_index >= 0 && alloc_index < MAX_ALLOCATIONS) {
allocations[alloc_index].ptr = ptr;
allocations[alloc_index].size = size;
allocations[alloc_index].source_id = source_id;
allocations_count++;
total_memory_allocations[source_id] += size;
}
}
allocations_this_frame += 1;
pthread_mutex_unlock(&fastmutex);
return ptr;
}
void og_free(void* ptr) {
pthread_mutex_lock(&fastmutex);
for (uint32_t i = 0; i < MAX_ALLOCATIONS; i++) {
if (allocations[i].ptr == ptr) {
total_memory_allocations[allocations[i].source_id] -= allocations[i].size;
allocations[i].size = 0;
allocations[i].ptr = NULL;
allocations_count--;
break;
}
}
pthread_mutex_unlock(&fastmutex);
free(ptr);
}
void* operator new(size_t size) { return og_malloc(size, OG_MALLOC_NEW); }
void* operator new[](size_t size) { return og_malloc(size, OG_MALLOC_NEW_ARR); }
void operator delete(void* ptr) { og_free(ptr); }
void operator delete[](void* ptr) { og_free(ptr); }
uint32_t GetAndResetMallocAllocationCount() {
uint32_t v;
pthread_mutex_lock(&fastmutex);
v = allocations_this_frame;
allocations_this_frame = 0;
pthread_mutex_unlock(&fastmutex);
return v;
}
uint64_t GetCurrentTotalMallocAllocation(int index) {
return total_memory_allocations[index];
}
size_t GetCurrentNumberOfMallocAllocations() {
return allocations_count;
}
#else
void* og_malloc(size_t size, uint8_t source_id) {
return malloc(size);
}
void og_free(void* ptr) {
free(ptr);
}
#endif
Allocation::Allocation() {
}
void Allocation::Init() {
int mem_size = 150 * 1024 * 1024;
mem_block_stack_allocator = malloc(mem_size);
#ifndef NO_ERR
if (!mem_block_stack_allocator) {
FatalError("Error", "Could not allocate initial memory block for stack allocator");
}
#endif
stack.Init(mem_block_stack_allocator, mem_size);
/*
int block_alloc_blocksize = 1024;
int block_alloc_blockcount = 128 * 1024;
int mem_size_block = block_alloc_blockcount * block_alloc_blocksize;
mem_block_block_allocator = malloc(mem_size_block);
#ifndef NO_ERR
if(!mem_block_block_allocator) {
FatalError("Error", "Could not allocate initial memory block for block allocator");
}
#endif
block.Init(mem_block_block_allocator, block_alloc_blockcount, block_alloc_blocksize);
*/
}
void Allocation::Dispose() {
stack.Dispose();
free(mem_block_stack_allocator);
mem_block_stack_allocator = NULL;
// free(mem_block_block_allocator);
}
StackMem::StackMem(void* ptr) : v(ptr) {
}
StackMem::~StackMem() {
alloc.stack.Free(v);
}
void* StackMem::ptr() {
return v;
}
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