feat: added simple memory arena allocator to libn

1 files changed, 9 insertions, 4 deletions

diff --git a/include/libn.h b/include/libn.h
index 74e230e..0fbcdc7 100644
--- a/include/libn.h
+++ b/include/libn.h
@@ -50,14 +50,19 @@ void _bufpop(void*, int, vlong);
 // -----------------------------------------------------------------------------
 // Memory allocation
 
-// TODO: Think about interface here.
-typedef struct Allocator {
+typedef struct mem·Allocator {
     void *(*alloc)(ulong size);
     void *(*realloc)(void *ptr, ulong size);
     void (*free)(void *ptr);
-} Allocator;
+} mem·Allocator;
 
-static Allocator mem·sys = { .alloc = &malloc, .realloc = &realloc, .free = &free};
+static mem·Allocator mem·sys = { .alloc = &malloc, .realloc = &realloc, .free = &free };
+
+typedef struct mem·Arena mem·Arena;
+
+mem·Arena *mem·newarena(mem·Allocator from);
+void      *mem·arenaalloc(mem·Arena *A, ulong size); 
+void       mem·freearena(mem·Arena *A);
 
 // -----------------------------------------------------------------------------
 // Co-routines