gora/arena.h
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

v1.0.1 - Prevent name mangling of functions; don't reset region_capacity in arena_free()

Browse Source
This commit is contained in:
seajee
2025-08-02 15:13:38 +02:00
parent e583d87285
commit 4c069c0945
2 changed files with 26 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
README.md
View File

@@ -18,7 +18,7 @@ int main(void)
int *x = arena_alloc(&a, sizeof(*x) * 32);
float *y = arena_alloc(&a, sizeof(*y) * 512);
arena_free(&a);
arena_free(&a); // The arena can still be reused
return 0;
}
```

30
arena.h
View File

@@ -1,4 +1,4 @@
// arena.h - v1.0.0 - MIT License - https://github.com/seajee/arena.h
// arena.h - v1.0.1 - MIT License - https://github.com/seajee/arena.h
// single header library for region-based memory management.
//
// License and changelog:
@@ -8,7 +8,7 @@
// Compile-time options:
//
// Note: every compile-time option listed here should be configured before
// the definition of the ARENA_IMPLEMENTATION macro.
// the #include "arena.h"
//
// #define ARENA_REGION_CAPACITY new_region_capacity_in_bytes (4096)
//
@@ -48,7 +48,9 @@
// void arena_free(Arena *a)
//
// This function frees all of the regions allocated in the specified arena
// which invalidates all the pointers associated with the arena.
// which invalidates all the pointers associated with the arena. The arena can
// still be reused. If the arena was created with arena_create() the
// configured region_capacity will be retained.
//
// void arena_reset(Arena *a)
//
@@ -70,7 +72,7 @@ int main(void)
int *x = arena_alloc(&a, sizeof(*x) * 32);
float *y = arena_alloc(&a, sizeof(*y) * 512);
arena_free(&a);
arena_free(&a); // The arena can still be reused
return 0;
}
*/
@@ -100,6 +102,10 @@ int main(void)
# define ARENA_FREE free
#endif // ARENA_FREE
#ifdef __cplusplus
extern "C" { // Prevent name mangling of functions
#endif // __cplusplus
typedef struct Arena_Region Arena_Region;
struct Arena_Region {
@@ -120,10 +126,18 @@ void *arena_alloc(Arena *a, size_t bytes);
void arena_free(Arena *a);
void arena_reset(Arena *a);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // ARENA_H_
#ifdef ARENA_IMPLEMENTATION
#ifdef __cplusplus
extern "C" { // Prevent name mangling of functions
#endif // __cplusplus
Arena arena_create(size_t region_capacity)
{
Arena a = {0};
@@ -195,7 +209,7 @@ void arena_free(Arena *a)
a->head = NULL;
a->tail = NULL;
a->region_capacity = 0;
// a->region_capacity = 0;
}
void arena_reset(Arena *a)
@@ -211,11 +225,17 @@ void arena_reset(Arena *a)
a->tail = a->head;
}
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // ARENA_IMPLEMENTATION
/*
* Revision history:
*
* 1.0.1 (2025-08-02) Prevent name mangling of functions; don't reset
* region_capacity in arena_free()
* 1.0.0 (2025-07-24) Initial release
*/