mirror of https://github.com/ceph/go-ceph
Add rados_write_full function
Signed-off-by: Ye Yin <eyniy@qq.com>
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8f882afdc3
commit
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@ -68,6 +68,24 @@ func (ioctx *IOContext) Write(oid string, data []byte, offset uint64) error {
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}
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}
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// WriteFull writes len(data) bytes to the object with key oid.
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// The object is filled with the provided data. If the object exists,
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// it is atomically truncated and then written. It returns an error, if any.
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func (ioctx *IOContext) WriteFull(oid string, data []byte) error {
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c_oid := C.CString(oid)
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defer C.free(unsafe.Pointer(c_oid))
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ret := C.rados_write_full(ioctx.ioctx, c_oid,
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(*C.char)(unsafe.Pointer(&data[0])),
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(C.size_t)(len(data)))
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if ret == 0 {
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return nil
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} else {
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return RadosError(int(ret))
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}
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}
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// Read reads up to len(data) bytes from the object with key oid starting at byte
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// offset offset. It returns the number of bytes read and an error, if any.
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func (ioctx *IOContext) Read(oid string, data []byte, offset uint64) (int, error) {
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@ -307,6 +307,16 @@ func TestReadWrite(t *testing.T) {
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assert.Equal(t, n_out, len(bytes_in))
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assert.Equal(t, bytes_in, bytes_out)
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bytes_in = []byte("input another data")
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err = pool.WriteFull("obj", bytes_in)
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assert.NoError(t, err)
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bytes_out = make([]byte, len(bytes_in))
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n_out, err = pool.Read("obj", bytes_out, 0)
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assert.Equal(t, n_out, len(bytes_in))
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assert.Equal(t, bytes_in, bytes_out)
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pool.Destroy()
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}
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