mirror of https://github.com/ceph/go-ceph
44 lines
940 B
Go
44 lines
940 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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"bytes"
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"unsafe"
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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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buf := make([]byte, 4096)
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for {
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size := C.size_t(len(buf))
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ret := C.rbd_list(C.rados_ioctx_t(ioctx.Pointer()),
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(*C.char)(unsafe.Pointer(&buf[0])), &size)
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if ret == -C.ERANGE {
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buf = make([]byte, size)
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continue
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} else if ret < 0 {
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return nil, RBDError(ret)
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}
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tmp := bytes.Split(buf[:size-1], []byte{0})
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for _, s := range tmp {
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if len(s) > 0 {
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name := C.GoString((*C.char)(unsafe.Pointer(&s[0])))
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names = append(names, name)
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}
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}
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return names, nil
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}
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}
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