From 13910acb85367a737617984f9ac8f8bbbfc5281f Mon Sep 17 00:00:00 2001
From: nasr <nsrddyn@gmail.com>
Date: Tue, 30 Dec 2025 21:06:18 +0100
Subject: checkpoint

---
 base.c | 172 -----------------------------------------------------------------
 1 file changed, 172 deletions(-)
 delete mode 100644 base.c

(limited to 'base.c')

diff --git a/base.c b/base.c
deleted file mode 100644
index 519e644..0000000
--- a/base.c
+++ /dev/null
@@ -1,172 +0,0 @@
-#include <sys/mman.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-#include <assert.h>
-
-#define OK 0
-#define ERR_IO 1
-#define ERR_PARSE 2
-#define ERR_PERM 3
-#define ERR_INVALID 4
-
-enum
-{
-  BUFFER_SIZE_SMALL = 128,
-  BUFFER_SIZE_DEFAULT = 256,
-  BUFFER_SIZE_LARGE = 512,
-  PATH_MAX_LEN = 4096
-};
-
-typedef uint64_t u64;
-typedef uint32_t u32;
-typedef uint16_t u16;
-typedef uint8_t u8;
-
-typedef int8_t i8;
-typedef int16_t i16;
-typedef int32_t i32;
-typedef int64_t i64;
-
-typedef i16 b16;
-typedef i32 b32;
-
-static inline u64
-KiB(u64 n)
-{
-  return n << 10;
-}
-static inline u64
-MiB(u64 n)
-{
-  return n << 20;
-}
-static inline u64
-GiB(u64 n)
-{
-  return n << 30;
-}
-
-typedef struct mem_arena mem_arena;
-mem_arena *
-arena_create(u64 capacity);
-void
-arena_destroy(mem_arena *arena);
-void
-arena_clear(mem_arena *arena);
-
-/**
- * Arena Helper macro's
- * */
-
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#define ALIGN_UP_POW2(n, p) (((u64)(n) + ((u64)(p) - 1)) & (~((u64)(p) - 1)))
-
-/*
- * Represents a disk partition with major/minor device numbers and block count.
- */
-
-/**
- * replacing malloc/free with arena allocaters
- *
- * */
-
-#define ARENA_BASE_POS (sizeof(mem_arena))
-// void * for the size of a pointer on the machine, 64/32bit comp
-#define ARENA_ALIGN (sizeof(void *))
-
-struct mem_arena
-{
-  u64 capacity;
-  u64 pos;
-};
-
-// arena prototypes
-mem_arena *
-arena_create(u64 capacity);
-// make it a void pointer to allow implicit conversion
-void
-arena_destroy(mem_arena *arena);
-
-void *
-arena_push(mem_arena *arena, u64 size, b32 non_zero);
-
-void
-arena_pop(mem_arena *arena, u64 size);
-
-void
-arena_pop_to(mem_arena *arena, u64 pos);
-
-void
-arena_clear(mem_arena *arena);
-
-mem_arena *
-arena_create(u64 capacity)
-{
-  mem_arena *arena = mmap(0, capacity, PROT_READ | PROT_WRITE | PROT_EXEC,
-    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
-  if (arena == MAP_FAILED)
-  {
-    assert(0);
-  }
-
-  arena->capacity = capacity;
-  arena->pos = ARENA_BASE_POS;
-
-  return arena;
-}
-
-// make it a void pointer to allow implicit conversion
-void
-arena_destroy(mem_arena *arena)
-{
-  munmap(arena, arena->capacity);
-}
-
-void *
-arena_push(mem_arena *arena, u64 size, b32 non_zero)
-{
-  u64 pos_aligned = ALIGN_UP_POW2(arena->pos, ARENA_ALIGN);
-  u64 new_pos = pos_aligned + size;
-
-  if (new_pos > arena->capacity)
-  {
-    assert(0);
-    return NULL;
-  }
-
-  arena->pos = new_pos;
-  // cast to u8 to be able to do pointer arithemtic
-  u8 *out = (u8 *)arena + pos_aligned;
-
-  if (!non_zero)
-  {
-    memset(out, 0, size);
-  }
-  return out;
-}
-void
-arena_pop(mem_arena *arena, u64 size)
-{
-  size = MIN(size, arena->pos - ARENA_BASE_POS);
-  arena->pos -= size;
-}
-
-void
-arena_pop_to(mem_arena *arena, u64 pos)
-{
-  u64 size = pos < arena->pos ? arena->pos - pos : 0;
-  arena_pop(arena, size);
-}
-
-void
-arena_clear(mem_arena *arena)
-{
-  arena_pop_to(arena, ARENA_BASE_POS);
-}
-
-#define PUSH_STRUCT(arena, T) (T *)arena_push((arena), sizeof(T), 0)
-#define PUSH_STRUCT_NZ(arena, T) (T *)arena_push((arena), sizeof(T), 1)
-#define PUSH_ARRAY(arena, T, n) (T *)arena_push((arena), sizeof(T) * (n), 0)
-#define PUSH_ARRAY_NZ(arena, T, n) (T *)arena_push((arena), sizeof(T) * (n), 1)
-- 
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