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44 lines
906 B
Go
44 lines
906 B
Go
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// +build !luminous,!mimic
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package rados
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// #cgo LDFLAGS: -lrados
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// #include <rados/librados.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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"github.com/ceph/go-ceph/internal/retry"
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)
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// GetNamespace gets the namespace used for objects within this IO context.
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//
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// Implements:
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// int rados_ioctx_get_namespace(rados_ioctx_t io, char *buf,
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// unsigned maxlen);
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func (ioctx *IOContext) GetNamespace() (string, error) {
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if err := ioctx.validate(); err != nil {
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return "", err
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}
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var (
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err error
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buf []byte
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ret C.int
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)
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retry.WithSizes(128, 8192, func(size int) retry.Hint {
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buf = make([]byte, size)
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ret = C.rados_ioctx_get_namespace(
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ioctx.ioctx,
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(*C.char)(unsafe.Pointer(&buf[0])),
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C.unsigned(len(buf)))
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err = getErrorIfNegative(ret)
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return retry.DoubleSize.If(err == errRange)
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})
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if err != nil {
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return "", err
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}
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return string(buf[:ret]), nil
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}
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