#if !defined(_ORDQ_H_)

#define _ORDQ_H_ 1

#include <stdarg.h>
#include <stdint.h>

#include "mylock.h"

typedef struct _ordq_item {
    struct _ordq_item* next;
    void*              data;
} ordq_item_t;

typedef int (*ordq_cmp_fn_t)(void*, void*, void*);
typedef void (*ordq_data_killer_t)(void*);
typedef int (*ordq_match_fn_t)(void*, va_list);

typedef struct {
    mylock_t           lock;
    ordq_item_t*       head;
    ordq_data_killer_t killer;
    ordq_cmp_fn_t      cmp;
    void*              ctx;
} ordq_t;

extern int          ordq_init(ordq_t*, ordq_data_killer_t, ordq_cmp_fn_t);
extern void         ordq_fini(ordq_t* q);
extern int          ordq_put(ordq_t*, void*);
extern int          ordq_del(ordq_t*, ordq_match_fn_t, ...);
extern ordq_item_t* ordq_get(ordq_t*, ordq_match_fn_t, ...);
extern ordq_item_t* ordq_peek(ordq_t*, ordq_match_fn_t, ...);
extern void         ordq_set_ctx(ordq_t*, void*);

#endif