pool_alloc.h

#ifndef pool_alloc_header
#define pool_alloc_header

#include <unistd.h>
#include <stddef.h>
#include <unicode/ustring.h>

struct pool;

struct pool *pool_create();
void pool_release(struct pool *pool);
void *pool_alloc(struct pool *pool, size_t size, unsigned alignment);

const char *pool_dup(struct pool *pool, const char *str);
const char *pool_dup_u(struct pool *pool, const UChar *str);

const char *pool_dupn(struct pool *pool, const char *str, size_t len);
const char *pool_dupn_u(struct pool *pool, const UChar *str, size_t len);
const char *pool_sprintf(struct pool *pool, const char *fmt, ...)
   __attribute__ ((__format__(printf,2,3)));;

#define alignment_of(T) offsetof( struct { char x; T dummy; }, dummy)

#define pool_alloc_type(P, T) (T *) pool_alloc((P), sizeof(T), alignment_of(T))
#define pool_alloc_array(P, T, C) (T *) pool_alloc((P), sizeof(T)*C, alignment_of(T))

#endif