memory.c File Reference

🧠 In-memory rate limiting backend using uthash More...

Go to the source code of this file.

Data Structures
struct	rate_event_s
	Rate event record in memory. More...
struct	memory_backend_t
	Memory backend data. More...

Typedefs
typedef struct rate_event_s	rate_event_t
	Rate event record in memory.

Functions
void *	memory_backend_create (void)
	Create memory backend instance.

Variables
const rate_limiter_backend_ops_t	memory_backend_ops
	Memory backend operations vtable.

Detailed Description

🧠 In-memory rate limiting backend using uthash

Thread-safe implementation for ascii-chat server where persistence is not needed.

Definition in file network/rate_limit/memory.c.

Typedef Documentation

rate_event_t

typedef struct rate_event_s rate_event_t

Rate event record in memory.

Function Documentation

memory_backend_create()

void * memory_backend_create

(

void

)

Create memory backend instance.

Returns

Backend instance or NULL on failure

Definition at line 239 of file network/rate_limit/memory.c.

                                  {
  memory_backend_t *backend = SAFE_MALLOC(sizeof(memory_backend_t), memory_backend_t *);
  if (!backend) {
    log_error("Failed to allocate memory backend");
    return NULL;
  }
 
  memset(backend, 0, sizeof(*backend));
 
  if (mutex_init(&backend->lock, "rate_limiter") != 0) {
    log_error("Failed to initialize mutex");
    SAFE_FREE(backend);
    return NULL;
  }
 
  log_debug("Memory rate limiter backend initialized");
  return backend;
}

References memory_backend_t::lock, log_debug, log_error, mutex_init(), SAFE_FREE, and SAFE_MALLOC.

Referenced by rate_limiter_create_memory().

Variable Documentation

memory_backend_ops

const rate_limiter_backend_ops_t memory_backend_ops

Initial value:

= {
    .check = memory_check,
    .record = memory_record,
    .cleanup = memory_cleanup,
    .destroy = memory_destroy,
}

Memory backend operations vtable.

Definition at line 258 of file network/rate_limit/memory.c.

                                                      {
    .check = memory_check,
    .record = memory_record,
    .cleanup = memory_cleanup,
    .destroy = memory_destroy,
};

Referenced by rate_limiter_create_memory().