kc3-lang/kc3/libkc3/ptr_free.c

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• Hash : 516d1a0f
  Author : Thomas de Grivel
  Date : 2024-12-25T16:07:10
  

  wip alloc alloc_map, alloc_unmap

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• libkc3/ptr_free.c

• /* kc3
   * Copyright 2022,2023,2024 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include "alloc.h"
  #include "assert.h"
  #include "integer.h"
  #include "ptr_free.h"
  #include "sym.h"
  #include "tag_type.h"
  
  void ptr_free_clean (u_ptr_w *ptr_free)
  {
    assert(ptr_free);
    alloc_free(ptr_free->p);
  }
  
  void ptr_free_delete (u_ptr_w *ptr_free)
  {
    assert(ptr_free);
    ptr_free_clean(ptr_free);
    alloc_unmap(ptr_free, sizeof(u_ptr_w));
  }
  
  u_ptr_w * ptr_free_init (u_ptr_w *ptr_free, void *p)
  {
    u_ptr_w tmp = {0};
    assert(ptr_free);
    tmp.p = p;
    *ptr_free = tmp;
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_init_cast (u_ptr_w *p,
                                const s_sym * const *type,
                                const s_tag *tag)
  {
    assert(p);
    assert(type);
    assert(tag);
    switch (tag->type) {
    case TAG_F32: p->p = (void *) ((uw) tag->data.f32);  return p;
    case TAG_F64: p->p = (void *) ((uw) tag->data.f64);  return p;
    case TAG_INTEGER:
      p->p = (void *) integer_to_uw(&tag->data.integer); return p;
    case TAG_PTR: p->p = tag->data.ptr.p;                return p;
    case TAG_PTR_FREE: p->p = tag->data.ptr_free.p;      return p;
    case TAG_S8:  p->p = (void *) ((uw) tag->data.s8);   return p;
    case TAG_S16: p->p = (void *) ((uw) tag->data.s16);  return p;
    case TAG_S32: p->p = (void *) ((uw) tag->data.s32);  return p;
    case TAG_S64: p->p = (void *) ((uw) tag->data.s64);  return p;
    case TAG_SW:  p->p = (void *) ((uw) tag->data.sw);   return p;
    case TAG_U8:  p->p = (void *) ((uw) tag->data.u8);   return p;
    case TAG_U16: p->p = (void *) ((uw) tag->data.u16);  return p;
    case TAG_U32: p->p = (void *) ((uw) tag->data.u32);  return p;
    case TAG_U64: p->p = (void *) ((uw) tag->data.u64);  return p;
    case TAG_UW:  p->p = (void *) ((uw) tag->data.uw);   return p;
    default: break;
    }
    err_write_1("ptr_free_init_cast: cannot cast ");
    err_write_1(tag_type_to_string(tag->type));
    if (*type == &g_sym_PtrFree)
      err_puts(" to PtrFree");
    else {
      err_write_1(" to ");
      err_inspect_sym(type);
      err_puts(" aka PtrFree");
    }
    assert(! "ptr_free_init_cast: cannot cast to PtrFree");
    return NULL;
  }
  
  u_ptr_w * ptr_free_init_copy (u_ptr_w *ptr_free, const u_ptr_w *src)
  {
    u_ptr_w tmp = {0};
    assert(ptr_free);
    assert(src);
    (void) src;
    *ptr_free = tmp;
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_new (void *p)
  {
    u_ptr_w *ptr_free;
    ptr_free = alloc_map(sizeof(u_ptr_w));
    if (! ptr_free)
      return NULL;
    if (! ptr_free_init(ptr_free, p)) {
      alloc_unmap(ptr_free, sizeof(u_ptr_w));
      return NULL;
    }
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_new_copy (const u_ptr_w *src)
  {
    u_ptr_w *ptr_free;
    assert(src);
    ptr_free = alloc_map(sizeof(u_ptr_w));
    if (! ptr_free)
      return NULL;
    if (! ptr_free_init_copy(ptr_free, src)) {
      alloc_unmap(ptr_free, sizeof(u_ptr_w));
      return NULL;
    }
    return ptr_free;
  }
  

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