skipstone/include/skipstone/message.h

#ifndef _SKIPSTONE_MESSAGE_H
#define _SKIPSTONE_MESSAGE_H

#include <stdint.h>
#include <sys/types.h>

#include <skipstone/link.h>
#include <skipstone/map.h>

#define SKIPSTONE_MESSAGE_MAX_PAYLOAD 4096

enum {
    SKIPSTONE_MESSAGE_ENDPOINT_NONE           =  0,
    SKIPSTONE_MESSAGE_ENDPOINT_FIRMWARE       =  1,
    SKIPSTONE_MESSAGE_ENDPOINT_TIME           = 11,
    SKIPSTONE_MESSAGE_ENDPOINT_VERSIONS       = 16,
    SKIPSTONE_MESSAGE_ENDPOINT_PHONE_VERSION  = 17,
    SKIPSTONE_MESSAGE_ENDPOINT_SYSTEM_MESSAGE = 18,
    SKIPSTONE_MESSAGE_ENDPOINT_MUSIC_CONTROL  = 32,
    SKIPSTONE_MESSAGE_ENDPOINT_PHONE_CONTROL  = 33
};

typedef struct _skipstone_message_header {
    uint16_t size,
             id;
} skipstone_message_header;

typedef struct _skipstone_message_service skipstone_message_service;

typedef struct _skipstone_message skipstone_message;

typedef int (skipstone_message_handler)(skipstone_message_service *service,
                                        void *buf,
                                        uint16_t size,
                                        uint16_t id,
                                        void *context);

ssize_t skipstone_message_pack(void *message,
                               size_t len,
                               const char *template, ...);

skipstone_message_service *skipstone_message_service_new();

void skipstone_message_service_destroy(skipstone_message_service *service);

int skipstone_message_service_register(skipstone_message_service *service,
                                       uint16_t id,
                                       skipstone_message_handler *handler,
                                       void *context);

int skipstone_message_service_deregister(skipstone_message_service *service,
                                         uint16_t id);

int skipstone_message_service_queue(skipstone_message_service *service,
                                    void *buf,
                                    uint16_t size,
                                    uint16_t id);

int skipstone_message_service_next_event(skipstone_message_service *service,
                                         skipstone_link *link, struct timeval *timeout);

#endif /* _SKIPSTONE_MESSAGE_H */