resolver.h

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#ifndef KEEL_RESOLVER_H
#define KEEL_RESOLVER_H
 
#include <keel/allocator.h>
#include <sys/socket.h>
 
/* Forward declarations */
typedef struct KlEventCtx KlEventCtx;
typedef struct KlResolver KlResolver;
typedef struct KlResolveReq KlResolveReq;
 
typedef struct {
    struct sockaddr_storage addr;  
    socklen_t addrlen;             
    int ai_family;                 
    int ai_socktype;               
    int ai_protocol;               
} KlResolveResult;
 
typedef void (*KlResolveDoneFn)(KlResolveReq *req, const KlResolveResult *result,
                                 int error, void *user_data);
 
struct KlResolveReq {
    KlResolver *resolver;  
};
 
struct KlResolver {
    KlResolveReq *(*resolve)(KlResolver *self, KlEventCtx *ctx,
                              const char *host, int port,
                              KlResolveDoneFn done_fn, void *user_data);
 
    void (*cancel)(KlResolveReq *req);
 
    void (*destroy)(KlResolver *self);
};
 
#endif /* KEEL_RESOLVER_H */