37 lines
870 B
Go
37 lines
870 B
Go
//go:build (amd64 || arm64 || riscv64) && !sqlite3_nosys
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package vfs
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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const (
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_F2FS_IOC_START_ATOMIC_WRITE = 62721
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_F2FS_IOC_COMMIT_ATOMIC_WRITE = 62722
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_F2FS_IOC_ABORT_ATOMIC_WRITE = 62725
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_F2FS_IOC_GET_FEATURES = 2147808524
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_F2FS_FEATURE_ATOMIC_WRITE = 4
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)
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// notest
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func osBatchAtomic(file *os.File) bool {
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flags, err := unix.IoctlGetInt(int(file.Fd()), _F2FS_IOC_GET_FEATURES)
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return err == nil && flags&_F2FS_FEATURE_ATOMIC_WRITE != 0
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}
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func (f *vfsFile) BeginAtomicWrite() error {
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return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_START_ATOMIC_WRITE, 0)
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}
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func (f *vfsFile) CommitAtomicWrite() error {
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return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_COMMIT_ATOMIC_WRITE, 0)
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}
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func (f *vfsFile) RollbackAtomicWrite() error {
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return unix.IoctlSetInt(int(f.Fd()), _F2FS_IOC_ABORT_ATOMIC_WRITE, 0)
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}
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