forked from mirrors/gotosocial
49 lines
1 KiB
Go
49 lines
1 KiB
Go
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package storage
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import (
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"os"
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"syscall"
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"git.iim.gay/grufwub/go-store/util"
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)
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const (
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defaultDirPerms = 0755
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defaultFilePerms = 0644
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defaultFileROFlags = syscall.O_RDONLY
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defaultFileRWFlags = syscall.O_CREAT | syscall.O_RDWR
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defaultFileLockFlags = syscall.O_RDONLY | syscall.O_EXCL | syscall.O_CREAT
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)
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// NOTE:
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// These functions are for opening storage files,
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// not necessarily for e.g. initial setup (OpenFile)
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// open should not be called directly
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func open(path string, flags int) (*os.File, error) {
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var fd int
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err := util.RetryOnEINTR(func() (err error) {
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fd, err = syscall.Open(path, flags, defaultFilePerms)
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return
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})
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if err != nil {
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return nil, err
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}
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return os.NewFile(uintptr(fd), path), nil
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}
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// stat checks for a file on disk
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func stat(path string) (bool, error) {
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var stat syscall.Stat_t
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err := util.RetryOnEINTR(func() error {
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return syscall.Stat(path, &stat)
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})
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if err != nil {
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if err == syscall.ENOENT {
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err = nil
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}
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return false, err
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}
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return true, nil
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}
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