#define CHUNK_SIZE 4096

typedef struct apr_pool_t apr_pool_t;

struct apr_pool_t {
    /** The first block in this pool. */
    union block_hdr *first;
    /** The last block in this pool. */
    union block_hdr *last;
    /** The list of cleanups to run on pool cleanup. */
    struct cleanup *cleanups;
    /** A list of processes to kill when this pool is cleared */
    struct process_chain *subprocesses;
    /** The first sub_pool of this pool */
    struct apr_pool_t *sub_pools;
    /** The next sibling pool */
    struct apr_pool_t *sub_next;
    /** The previous sibling pool */
    struct apr_pool_t *sub_prev;
    /** The parent pool of this pool */
    struct apr_pool_t *parent;
    /** The first free byte in this pool */
    char *free_first_avail;
#ifdef ALLOC_USE_MALLOC
    /** The allocation list if using malloc */
    void *allocation_list;
#endif
#ifdef POOL_DEBUG
    /** a list of joined pools
     *  @defvar apr_pool_t *joined */
    struct apr_pool_t *joined;
#endif
    /** A function to control how pools behave when they receive ENOMEM
     *  @deffunc int apr_abort(int retcode) */
    int (*apr_abort)(int retcode);
    /** A place to hand user data associated with this pool
     *  @defvar datastruct *prog_data */
    struct datastruct *prog_data;
};

typedef struct {
    char *data;
    int size;
    int capacity;
    apr_pool_t *pool;
} MWA_STRING;

void init_string(MWA_STRING *string, apr_pool_t *pool);
void append_string(MWA_STRING *string, const char *in_data, int in_size);