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fs: add do_ioctl_nothrow and fsid methods to btrfs fs info

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Enable use of the ioctl to probe whether two fds refer to the same btrfs,
without throwing an exception.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2025-01-26 23:33:19 -05:00
parent 561e604edc
commit 925b12823e
2 changed files with 18 additions and 3 deletions
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2
include/crucible/fs.h
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@ -246,9 +246,11 @@ namespace crucible {
struct BtrfsIoctlFsInfoArgs : public btrfs_ioctl_fs_info_args_v3 {
BtrfsIoctlFsInfoArgs();
void do_ioctl(int fd);
bool do_ioctl_nothrow(int fd);
uint16_t csum_type() const;
uint16_t csum_size() const;
uint64_t generation() const;
vector<uint8_t> fsid() const;
};
ostream & operator<<(ostream &os, const BtrfsIoctlFsInfoArgs &a);