147 lines
3.6 KiB
C++
147 lines
3.6 KiB
C++
#include "memory_manager.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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typedef void(MemoryManagerPrintErrorProc)(const char* string);
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static void memoryManagerDefaultPrintErrorImpl(const char* string);
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static int memoryManagerPrintError(const char* format, ...);
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[[noreturn]] static void memoryManagerFatalAllocationError(const char* func, size_t size, const char* file, int line);
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static void* memoryManagerDefaultMallocImpl(size_t size);
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static void* memoryManagerDefaultReallocImpl(void* ptr, size_t size);
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static void memoryManagerDefaultFreeImpl(void* ptr);
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// 0x519588
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static MemoryManagerPrintErrorProc* gMemoryManagerPrintErrorProc = memoryManagerDefaultPrintErrorImpl;
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// 0x51958C
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static MallocProc* gMemoryManagerMallocProc = memoryManagerDefaultMallocImpl;
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// 0x519590
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static ReallocProc* gMemoryManagerReallocProc = memoryManagerDefaultReallocImpl;
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// 0x519594
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static FreeProc* gMemoryManagerFreeProc = memoryManagerDefaultFreeImpl;
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// 0x631F7C
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static char gMemoryManagerLastError[256];
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// 0x4845B0
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static void memoryManagerDefaultPrintErrorImpl(const char* string)
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{
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printf("%s", string);
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}
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// 0x4845C8
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static int memoryManagerPrintError(const char* format, ...)
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{
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int length = 0;
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if (gMemoryManagerPrintErrorProc != NULL) {
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va_list args;
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va_start(args, format);
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length = vsprintf(gMemoryManagerLastError, format, args);
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va_end(args);
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gMemoryManagerPrintErrorProc(gMemoryManagerLastError);
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}
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return length;
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}
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// 0x484610
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[[noreturn]] static void memoryManagerFatalAllocationError(const char* func, size_t size, const char* file, int line)
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{
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memoryManagerPrintError("%s: Error allocating block of size %ld (%x), %s %d\n", func, size, size, file, line);
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exit(1);
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}
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// 0x48462C
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static void* memoryManagerDefaultMallocImpl(size_t size)
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{
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return malloc(size);
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}
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// 0x484634
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static void* memoryManagerDefaultReallocImpl(void* ptr, size_t size)
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{
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return realloc(ptr, size);
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}
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// 0x48463C
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static void memoryManagerDefaultFreeImpl(void* ptr)
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{
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free(ptr);
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}
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// 0x484644
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void memoryManagerSetProcs(MallocProc* mallocProc, ReallocProc* reallocProc, FreeProc* freeProc)
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{
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gMemoryManagerMallocProc = mallocProc;
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gMemoryManagerReallocProc = reallocProc;
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gMemoryManagerFreeProc = freeProc;
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}
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// 0x484660
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void* internal_malloc_safe(size_t size, const char* file, int line)
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{
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void* ptr = gMemoryManagerMallocProc(size);
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if (ptr == NULL) {
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memoryManagerFatalAllocationError("malloc", size, file, line);
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}
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return ptr;
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}
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// 0x4846B4
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void* internal_realloc_safe(void* ptr, size_t size, const char* file, int line)
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{
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ptr = gMemoryManagerReallocProc(ptr, size);
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if (ptr == NULL) {
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memoryManagerFatalAllocationError("realloc", size, file, line);
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}
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return ptr;
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}
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// 0x484688
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void internal_free_safe(void* ptr, const char* file, int line)
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{
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if (ptr == NULL) {
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memoryManagerPrintError("free: free of a null ptr, %s %d\n", file, line);
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exit(1);
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}
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gMemoryManagerFreeProc(ptr);
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}
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// 0x4846D8
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void* internal_calloc_safe(int count, int size, const char* file, int line)
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{
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void* ptr = gMemoryManagerMallocProc(count * size);
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if (ptr == NULL) {
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memoryManagerFatalAllocationError("calloc", size, file, line);
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}
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memset(ptr, 0, count * size);
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return ptr;
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}
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// 0x484710
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char* strdup_safe(const char* string, const char* file, int line)
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{
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size_t size = strlen(string) + 1;
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char* copy = (char*)gMemoryManagerMallocProc(size);
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if (copy == NULL) {
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memoryManagerFatalAllocationError("strdup", size, file, line);
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}
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strcpy(copy, string);
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return copy;
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}
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