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

57 lines
1.2 KiB
C

#ifndef _SYS_STATVFS_H
#define _SYS_STATVFS_H
#ifdef __cplusplus
extern "C" {
#endif
#include <features.h>
#define __NEED_fsblkcnt_t
#define __NEED_fsfilcnt_t
#include <bits/alltypes.h>
struct statvfs {
unsigned long f_bsize, f_frsize;
fsblkcnt_t f_blocks, f_bfree, f_bavail;
fsfilcnt_t f_files, f_ffree, f_favail;
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned long f_fsid;
unsigned :8*(2*sizeof(int)-sizeof(long));
#else
unsigned :8*(2*sizeof(int)-sizeof(long));
unsigned long f_fsid;
#endif
unsigned long f_flag, f_namemax;
int __reserved[6];
};
int statvfs (const char *__restrict, struct statvfs *__restrict);
int fstatvfs (int, struct statvfs *);
#define ST_RDONLY 1
#define ST_NOSUID 2
#define ST_NODEV 4
#define ST_NOEXEC 8
#define ST_SYNCHRONOUS 16
#define ST_MANDLOCK 64
#define ST_WRITE 128
#define ST_APPEND 256
#define ST_IMMUTABLE 512
#define ST_NOATIME 1024
#define ST_NODIRATIME 2048
#define ST_RELATIME 4096
#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
#define statvfs64 statvfs
#define fstatvfs64 fstatvfs
#define fsblkcnt64_t fsblkcnt_t
#define fsfilcnt64_t fsfilcnt_t
#endif
#ifdef __cplusplus
}
#endif
#endif