mirror of https://github.com/ceph/go-ceph
76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
package cephfs
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/*
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#cgo LDFLAGS: -lcephfs
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#cgo CPPFLAGS: -D_FILE_OFFSET_BITS=64
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#include <stdlib.h>
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#include <cephfs/libcephfs.h>
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*/
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import "C"
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import (
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"unsafe"
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)
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// CephStatVFS instances are returned from the StatFS call. It reports
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// file-system wide statistics.
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type CephStatVFS struct {
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// Bsize reports the file system's block size.
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Bsize int64
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// Fragment reports the file system's fragment size.
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Frsize int64
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// Blocks reports the number of blocks in the file system.
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Blocks uint64
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// Bfree reports the number of free blocks.
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Bfree uint64
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// Bavail reports the number of free blocks for unprivileged users.
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Bavail uint64
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// Files reports the number of inodes in the file system.
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Files uint64
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// Ffree reports the number of free indoes.
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Ffree uint64
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// Favail reports the number of free indoes for unprivileged users.
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Favail uint64
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// Fsid reports the file system ID number.
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Fsid int64
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// Flag reports the file system mount flags.
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Flag int64
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// Namemax reports the maximum file name length.
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Namemax int64
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}
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// StatFS returns file system wide statistics.
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// NOTE: Many of the statistics fields reported by ceph are not filled in with
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// useful values.
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//
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// Implements:
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//
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// int ceph_statfs(struct ceph_mount_info *cmount, const char *path, struct statvfs *stbuf);
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func (mount *MountInfo) StatFS(path string) (*CephStatVFS, error) {
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if err := mount.validate(); err != nil {
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return nil, err
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}
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cPath := C.CString(path)
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defer C.free(unsafe.Pointer(cPath))
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var statvfs C.struct_statvfs
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ret := C.ceph_statfs(mount.mount, cPath, &statvfs)
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if ret != 0 {
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return nil, getError(ret)
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}
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csfs := &CephStatVFS{
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Bsize: int64(statvfs.f_bsize),
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Frsize: int64(statvfs.f_frsize),
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Blocks: uint64(statvfs.f_blocks),
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Bfree: uint64(statvfs.f_bfree),
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Bavail: uint64(statvfs.f_bavail),
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Files: uint64(statvfs.f_files),
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Ffree: uint64(statvfs.f_ffree),
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Favail: uint64(statvfs.f_favail),
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Fsid: int64(statvfs.f_fsid),
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Flag: int64(statvfs.f_flag),
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Namemax: int64(statvfs.f_namemax),
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}
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return csfs, nil
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}
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