108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
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#ifndef FED_MEM_H
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#define FED_MEM_H
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#include "4coder_mem.h"
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//#define MEMORY_DEBUG
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static void
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general_memory_open(System_Functions *system, General_Memory *general, void *memory, int32_t size){
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#if defined(MEMORY_DEBUG)
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general_memory_open(general, memory, size);
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#else
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general_memory_open(general, memory, size);
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#endif
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}
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#if defined(Assert) && !defined(MEMORY_DEBUG)
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static int32_t
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general_memory_check(System_Functions *system, General_Memory *general){
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Bubble *sentinel = &general->sentinel;
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for (Bubble *bubble = sentinel->next;
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bubble != sentinel;
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bubble = bubble->next){
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Assert(bubble);
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Bubble *next = bubble->next;
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Assert(bubble == next->prev);
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if (next != sentinel && bubble->prev != sentinel){
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Assert(bubble->next > bubble);
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Assert(bubble > bubble->prev);
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char *end_ptr = (char*)(bubble + 1) + bubble->size;
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char *next_ptr = (char*)next;
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(void)(end_ptr);
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(void)(next_ptr);
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Assert(end_ptr == next_ptr);
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}
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}
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return(1);
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}
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#else
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static int32_t
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general_memory_check(System_Functions *system, General_Memory *general){return(1);}
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#endif
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#define OS_PAGE_SIZE 4096
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static void*
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general_memory_allocate(System_Functions *system, General_Memory *general, int32_t size){
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#if defined(MEMORY_DEBUG)
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{
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persist u32 round_val = OS_PAGE_SIZE-1;
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size = (size + round_val) & (~round_val);
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void *result = system->memory_allocate(0, size + OS_PAGE_SIZE);
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system->memory_set_protection(0, (u8*)result + size, OS_PAGE_SIZE, 0);
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return(result);
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}
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#else
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return general_memory_allocate(general, size);
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#endif
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}
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static void
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general_memory_free(System_Functions *system, General_Memory *general, void *memory){
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#if defined(MEMORY_DEBUG)
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{
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system->memory_free(0, memory, 0);
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}
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#else
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return general_memory_free(general, memory);
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#endif
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}
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static void*
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general_memory_reallocate(System_Functions *system, General_Memory *general, void *old, int32_t old_size, int32_t size){
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#if defined(MEMORY_DEBUG)
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{
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void *result = general_memory_allocate(system, general, size);
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memcpy(result, old, old_size);
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general_memory_free(system, general, old);
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return(result);
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}
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#else
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return general_memory_reallocate(general, old, old_size, size);
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#endif
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}
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inline void*
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general_memory_reallocate_nocopy(System_Functions *system, General_Memory *general, void *old, int32_t size){
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#if defined(MEMORY_DEBUG)
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{
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general_memory_free(system, general, old);
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return general_memory_allocate(system, general, size);
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}
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#else
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return general_memory_reallocate_nocopy(general, old, size);
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#endif
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}
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#define reset_temp_memory end_temp_memory
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#define gen_struct(s, g, T) (T*)general_memory_allocate(s, g, sizeof(T), 0)
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#define gen_array(s, g, T, size) (T*)general_memory_allocate(s, g, sizeof(T)*(size))
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#define gen_block(s, g, size) general_memory_open(s, g, size, 0)
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#endif
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