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

26 lines
491 B
C++

#ifndef _STDDEF_H
#define _STDDEF_H
#ifdef __cplusplus
#define NULL 0L
#else
#define NULL ((void*)0)
#endif
#define __NEED_ptrdiff_t
#define __NEED_size_t
#define __NEED_wchar_t
#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
#define __NEED_max_align_t
#endif
#include <bits/alltypes.h>
#if __GNUC__ > 3
#define offsetof(type, member) __builtin_offsetof(type, member)
#else
#define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
#endif
#endif