Andrea Maria Piana e65760ca85 Add basic peersyncing
This commit adds basic syncing capabilities with peers if they are both
online.

It updates the work done on MVDS, but I decided to create the code in
status-go instead, since it's very tight to the application (similarly
the code that was the inspiration for mvds, bramble, is all tight
together at the database level).

I reused parts of the protobufs.

The flow is:

1) An OFFER message is sent periodically with a bunch of message-ids and
   group-ids.
2) Anyone can REQUEST some of those messages if not present in their
   database.

3) The peer will then send over those messages.

It's disabled by default, but I am planning to add a way to set up the
flags.
2024-01-23 12:46:17 +00:00

42 lines
1.1 KiB
C

#ifndef _MQUEUE_H
#define _MQUEUE_H
#ifdef __cplusplus
extern "C" {
#endif
#include <features.h>
#define __NEED_size_t
#define __NEED_ssize_t
#define __NEED_pthread_attr_t
#define __NEED_time_t
#define __NEED_struct_timespec
#include <bits/alltypes.h>
typedef int mqd_t;
struct mq_attr {
long mq_flags, mq_maxmsg, mq_msgsize, mq_curmsgs, __unused[4];
};
struct sigevent;
int mq_close(mqd_t);
int mq_getattr(mqd_t, struct mq_attr *);
int mq_notify(mqd_t, const struct sigevent *);
mqd_t mq_open(const char *, int, ...);
ssize_t mq_receive(mqd_t, char *, size_t, unsigned *);
int mq_send(mqd_t, const char *, size_t, unsigned);
int mq_setattr(mqd_t, const struct mq_attr *__restrict, struct mq_attr *__restrict);
ssize_t mq_timedreceive(mqd_t, char *__restrict, size_t, unsigned *__restrict, const struct timespec *__restrict);
int mq_timedsend(mqd_t, const char *, size_t, unsigned, const struct timespec *);
int mq_unlink(const char *);
#if _REDIR_TIME64
__REDIR(mq_timedreceive, __mq_timedreceive_time64);
__REDIR(mq_timedsend, __mq_timedsend_time64);
#endif
#ifdef __cplusplus
}
#endif
#endif