Aryadev Chavali
12de1e8db9
Move files into separate folders for ease of reading, include source directory so we can use angle bracket includes, adjust build system to make directories for objects
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/* Copyright (C) 2025 Aryadev Chavali
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License Version 2 for
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* details.
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* You may distribute and modify this code under the terms of the GNU General
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* Public License Version 2, which you should have received a copy of along with
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* this program. If not, please go to <https://www.gnu.org/licenses/>.
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* Created: 2025-04-05
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* Description: Arena
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*/
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#ifndef ARENA_H
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#define ARENA_H
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#include <base.h>
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#include <stdio.h>
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#define PAGE_DEFAULT_SIZE 1024
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#define MEMORY_ALIGNMENT 8
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typedef struct Page
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{
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struct Page *next;
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u64 size, capacity;
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u8 data[];
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} page_t;
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page_t *page_create(u64 size);
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void page_resize(page_t **page, u64 newsize);
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// Append - fail (by returning <0) if not enough space.
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i64 page_append(page_t *page, void *data, u64 size);
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// Append - will resize if necessary
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u64 page_rappend(page_t **page, void *data, u64 size);
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typedef struct Aren
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{
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page_t *start, *end;
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} arena_t;
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void *arena_alloc(arena_t *arena, u64 size);
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void *arena_realloc(arena_t *arena, void *ptr, u64 oldsize, u64 newsize);
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void *arena_copy(arena_t *arena, void *ptr, u64 size);
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void arena_attach(arena_t *arena, page_t *page);
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void arena_reset(arena_t *arena);
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void arena_cleanup(arena_t *arena);
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#endif
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