mirror of
https://github.com/ceph/go-ceph
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43 lines
973 B
Go
43 lines
973 B
Go
// +build luminous mimic
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// +build !nautilus
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//
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// Ceph Nautilus includes rbd_list2() and marked rbd_list() deprecated.
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package rbd
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// #cgo LDFLAGS: -lrbd
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// #include <rados/librados.h>
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// #include <rbd/librbd.h>
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// #include <errno.h>
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import "C"
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import (
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"unsafe"
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"github.com/ceph/go-ceph/internal/cutil"
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"github.com/ceph/go-ceph/internal/retry"
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"github.com/ceph/go-ceph/rados"
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)
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// GetImageNames returns the list of current RBD images.
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func GetImageNames(ioctx *rados.IOContext) (names []string, err error) {
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var (
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buf []byte
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csize C.size_t
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)
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// from 4KiB to 32KiB
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retry.WithSizes(4096, 1<<15, func(size int) retry.Hint {
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csize = C.size_t(size)
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buf = make([]byte, csize)
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ret := C.rbd_list(cephIoctx(ioctx),
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(*C.char)(unsafe.Pointer(&buf[0])), &csize)
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err = getErrorIfNegative(ret)
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return retry.Size(int(csize)).If(err == errRange)
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})
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if err != nil {
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return nil, err
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}
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names = cutil.SplitSparseBuffer(buf[:csize])
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return names, nil
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}
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