Peak 0.1.1

1 files changed, 44 insertions, 0 deletions

diff --git a/Podium/p_allocators.h b/Podium/p_allocators.h
new file mode 100644
index 0000000..72bae56
--- /dev/null
+++ b/Podium/p_allocators.h
@@ -0,0 +1,44 @@
+typedef struct Arena {
+    unsigned char *buf;
+    usize buf_len;
+    usize curr_offset;
+    usize prev_offset;
+} Arena;
+
+PODEF void      p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length);
+PODEF void*     p_arena_alloc_align(Arena *a, usize s, usize align);
+PODEF void*     p_arena_alloc(Arena *a, usize s);
+PODEF void*     p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align);
+PODEF void*     p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size);
+PODEF void      p_arena_free_all(Arena *a);
+PODEF void      p_arena_destroy(Arena* a);
+
+typedef struct { u8 padding; } Stack_Allocation_Header;
+typedef struct Stack {
+    unsigned char *buf;
+    usize buf_len;
+    usize offset;
+} Stack;
+
+PODEF void      p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length);
+PODEF usize     calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size);
+PODEF void*     p_stack_alloc(Stack *s, usize len, usize alignment);
+PODEF void      p_stack_free(Stack *s, void *ptr);
+PODEF void      p_stack_free_all(Stack* s);
+PODEF void      p_stack_destroy(Stack* s);
+
+typedef struct Pool_Free_Node Pool_Free_Node;
+
+typedef struct Pool {
+    unsigned char *buf;
+    usize chunk_size;
+    usize pool_size;
+    Pool_Free_Node *head;
+} Pool;
+
+struct Pool_Free_Node { struct Pool_Free_Node *next; };
+PODEF void      p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align);
+PODEF void*     p_pool_alloc(Pool *p);
+PODEF void      p_pool_free(Pool *p, void *ptr);
+PODEF void      p_pool_free_all(Pool *p);
+PODEF void      p_pool_destroy(Pool *p);