mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-11 21:12:46 +00:00
49 lines
1 KiB
Go
49 lines
1 KiB
Go
package storage
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
|
|
"git.iim.gay/grufwub/go-store/util"
|
|
)
|
|
|
|
const (
|
|
defaultDirPerms = 0755
|
|
defaultFilePerms = 0644
|
|
defaultFileROFlags = syscall.O_RDONLY
|
|
defaultFileRWFlags = syscall.O_CREAT | syscall.O_RDWR
|
|
defaultFileLockFlags = syscall.O_RDONLY | syscall.O_EXCL | syscall.O_CREAT
|
|
)
|
|
|
|
// NOTE:
|
|
// These functions are for opening storage files,
|
|
// not necessarily for e.g. initial setup (OpenFile)
|
|
|
|
// open should not be called directly
|
|
func open(path string, flags int) (*os.File, error) {
|
|
var fd int
|
|
err := util.RetryOnEINTR(func() (err error) {
|
|
fd, err = syscall.Open(path, flags, defaultFilePerms)
|
|
return
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return os.NewFile(uintptr(fd), path), nil
|
|
}
|
|
|
|
// stat checks for a file on disk
|
|
func stat(path string) (bool, error) {
|
|
var stat syscall.Stat_t
|
|
err := util.RetryOnEINTR(func() error {
|
|
return syscall.Stat(path, &stat)
|
|
})
|
|
if err != nil {
|
|
if err == syscall.ENOENT {
|
|
err = nil
|
|
}
|
|
return false, err
|
|
}
|
|
return true, nil
|
|
}
|