Nils O. Selåsdal
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
#include "base_core.h"
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#include "arena.h"
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#include <stdio.h>
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#include <stdlib.h>
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void arena_dump(const Arena *arena)
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{
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return;
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MemoryBlock *block = arena->current;
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puts("@@@@@@@@@@");
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while (block) {
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puts("-----Arena-----");
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printf("base: %p\n", block->base);
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printf("size: %u\n", block->size);
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printf("pos: %u\n", block->pos);
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printf("base_pos: %u\n", block->base_pos);
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printf("prev: %p\n", block->prev);
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puts("-----Arena end-");
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block = block->prev;
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}
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}
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static void arena_test_1(void)
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{
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ArenaParams arena_params = {};
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U32 arena_size = MB(1) + MemoryBlock_Header_Size;
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U32 commit_size = KB(8);
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arena_params.size = arena_size;
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arena_params.commit_size = commit_size;
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Arena arena;
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arena_init(&arena, &arena_params);
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arena_dump(&arena);
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void *ptr = arena_push(&arena, 512, 1);
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MemoryZero(ptr, 512);
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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ptr = arena_push(&arena, 512, 1);
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MemoryZero(ptr, 512);
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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ptr = arena_push(&arena, 1, 1);
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MemoryZero(ptr, 1);
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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arena_free(&arena);
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}
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static void arena_test_2(void)
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{
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ArenaParams arena_params = {};
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U32 arena_size = MB(1) + MemoryBlock_Header_Size;
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U32 commit_size = KB(16);
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U32 push_size = KB(32);
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arena_params.size = arena_size;
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arena_params.commit_size = commit_size;
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Arena arena;
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arena_init(&arena, &arena_params);
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void *ptr;
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ptr = arena_push(&arena, push_size, 8);
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MemoryZero(ptr, push_size);
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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ArenaCheckPoint checkpoint = arena_temp_begin(&arena);
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ptr = arena_push(&arena, MB(2), 8);
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MemoryZero(ptr, MB(2));
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ptr = arena_push(&arena, commit_size * 3, 8);
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MemoryZero(ptr, commit_size * 3 );
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ptr = arena_push(&arena, commit_size , 8);
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MemoryZero(ptr, commit_size );
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ArenaCheckPoint checkpoint2 = arena_temp_begin(&arena);
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ptr = arena_push(&arena, 64, 8);
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MemoryZero(ptr, 64);
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arena_temp_end(&checkpoint2);
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arena_temp_end(&checkpoint);
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arena_pop_to(&arena, 1088);
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arena_dump(&arena);
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ptr = arena_push(&arena, 1, KB(16));
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((U8*)ptr)[0] = 0x37;
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ptr = arena_push(&arena, 1, KB(16));
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((U8*)ptr)[0] = 0x73;
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ptr = arena_push(&arena, 0, KB(4));
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//((U8*)ptr)[0] = 0x73;
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arena_pop_to(&arena, 1089);
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arena_dump(&arena);
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arena_pop_to(&arena, 0);
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arena_free(&arena);
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}
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static void arena_test_3(void)
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{
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ArenaParams arena_params = {};
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U32 arena_size = KB(97) + MemoryBlock_Header_Size;
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U32 commit_size = KB(32);
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arena_params.size = arena_size;
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arena_params.commit_size = commit_size;
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Arena arena;
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arena_init(&arena, &arena_params);
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arena_dump(&arena);
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void *ptr = arena_push(&arena, KB(64), 32);
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MemoryZero(ptr, KB(64));
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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ptr = arena_push(&arena, KB(97) - KB(64), 32);
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MemoryZero(ptr, KB(97) - KB(64));
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printf("Allocated ptr %p\n", ptr);
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arena_dump(&arena);
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arena_free(&arena);
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}
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int main(int argc, char *argv[])
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{
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//arena_test_1();
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//arena_test_2();
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arena_test_3();
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}
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