bcachefs-tools/libbcachefs.h
Austin Seipp 997bb216aa build: require explicit include paths for libbcachefs/
This removes the implicit `-I libbcachefs` argument to $(CC), which in turn
requires a set of minor changes throughout the tools. There are two advantages
to this setup:

    1) It is (arguably) easier to read, since the location of bcachefs includes
    are easier to understand at a glance ("where does util.h live?")

    2) It removes the need for a hack to include glibc's copy of
    dirent.h explicitly via '/usr/include/dirent.h', because libbcachefs/
    *also* has a dirent.h file and the compiler cannot disambiguate them.
    This has some ramifications on systems where /usr/include may not
    exist, such as NixOS.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
2017-12-10 16:06:01 -06:00

80 lines
1.5 KiB
C

#ifndef _LIBBCACHE_H
#define _LIBBCACHE_H
#include <linux/uuid.h>
#include <stdbool.h>
#include "libbcachefs/bcachefs_format.h"
#include "tools-util.h"
#include "libbcachefs/vstructs.h"
struct format_opts {
char *label;
uuid_le uuid;
unsigned on_error_action;
unsigned block_size;
unsigned btree_node_size;
unsigned encoded_extent_max;
unsigned meta_replicas;
unsigned data_replicas;
unsigned meta_replicas_required;
unsigned data_replicas_required;
unsigned meta_csum_type;
unsigned data_csum_type;
unsigned compression_type;
bool encrypted;
char *passphrase;
};
static inline struct format_opts format_opts_default()
{
return (struct format_opts) {
.on_error_action = BCH_ON_ERROR_RO,
.encoded_extent_max = 128,
.meta_csum_type = BCH_CSUM_CRC32C,
.data_csum_type = BCH_CSUM_CRC32C,
.meta_replicas = 1,
.data_replicas = 1,
.meta_replicas_required = 1,
.data_replicas_required = 1,
};
}
struct dev_opts {
int fd;
char *path;
u64 size; /* 512 byte sectors */
unsigned bucket_size;
unsigned tier;
unsigned data_allowed;
bool discard;
u64 nbuckets;
u64 sb_offset;
u64 sb_end;
};
static inline struct dev_opts dev_opts_default()
{
return (struct dev_opts) {
.data_allowed = ~0U << 2,
};
}
void bch2_pick_bucket_size(struct format_opts, struct dev_opts *);
struct bch_sb *bch2_format(struct format_opts, struct dev_opts *, size_t);
void bch2_super_write(int, struct bch_sb *);
struct bch_sb *__bch2_super_read(int, u64);
void bch2_super_print(struct bch_sb *, int);
#endif /* _LIBBCACHE_H */