26 lines
1 KiB
Go
26 lines
1 KiB
Go
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// Linsk - A utility to access Linux-native file systems on non-Linux operating systems.
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// Copyright (c) 2023 The Linsk Authors.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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// go:build darwin
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func getDeviceLogicalBlockSizeInner(fd uintptr) (int64, error) {
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bs, err := unix.IoctlGetInt(int(fd.Fd()), 0x40046418) // Syscall code for DKIOGETBLOCKSIZE
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if err != nil {
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return 0, errors.Wrap(err, "ioctl get logical block size")
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}
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return int64(bs), nil
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}
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