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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go')
-rw-r--r-- | vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go b/vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go deleted file mode 100644 index febaf846e..000000000 --- a/vendor/github.com/ncruces/go-sqlite3/util/osutil/open_windows.go +++ /dev/null @@ -1,115 +0,0 @@ -package osutil - -import ( - "io/fs" - "os" - . "syscall" - "unsafe" -) - -// OpenFile behaves the same as [os.OpenFile], -// except on Windows it sets [syscall.FILE_SHARE_DELETE]. -// -// See: https://go.dev/issue/32088#issuecomment-502850674 -func OpenFile(name string, flag int, perm fs.FileMode) (*os.File, error) { - if name == "" { - return nil, &os.PathError{Op: "open", Path: name, Err: ENOENT} - } - r, e := syscallOpen(name, flag|O_CLOEXEC, uint32(perm.Perm())) - if e != nil { - return nil, &os.PathError{Op: "open", Path: name, Err: e} - } - return os.NewFile(uintptr(r), name), nil -} - -// syscallOpen is a copy of [syscall.Open] -// that uses [syscall.FILE_SHARE_DELETE]. -// -// https://go.dev/src/syscall/syscall_windows.go -func syscallOpen(path string, mode int, perm uint32) (fd Handle, err error) { - if len(path) == 0 { - return InvalidHandle, ERROR_FILE_NOT_FOUND - } - pathp, err := UTF16PtrFromString(path) - if err != nil { - return InvalidHandle, err - } - var access uint32 - switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { - case O_RDONLY: - access = GENERIC_READ - case O_WRONLY: - access = GENERIC_WRITE - case O_RDWR: - access = GENERIC_READ | GENERIC_WRITE - } - if mode&O_CREAT != 0 { - access |= GENERIC_WRITE - } - if mode&O_APPEND != 0 { - access &^= GENERIC_WRITE - access |= FILE_APPEND_DATA - } - sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE) - var sa *SecurityAttributes - if mode&O_CLOEXEC == 0 { - sa = makeInheritSa() - } - var createmode uint32 - switch { - case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): - createmode = CREATE_NEW - case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): - createmode = CREATE_ALWAYS - case mode&O_CREAT == O_CREAT: - createmode = OPEN_ALWAYS - case mode&O_TRUNC == O_TRUNC: - createmode = TRUNCATE_EXISTING - default: - createmode = OPEN_EXISTING - } - var attrs uint32 = FILE_ATTRIBUTE_NORMAL - if perm&S_IWRITE == 0 { - attrs = FILE_ATTRIBUTE_READONLY - if createmode == CREATE_ALWAYS { - const _ERROR_BAD_NETPATH = Errno(53) - // We have been asked to create a read-only file. - // If the file already exists, the semantics of - // the Unix open system call is to preserve the - // existing permissions. If we pass CREATE_ALWAYS - // and FILE_ATTRIBUTE_READONLY to CreateFile, - // and the file already exists, CreateFile will - // change the file permissions. - // Avoid that to preserve the Unix semantics. - h, e := CreateFile(pathp, access, sharemode, sa, TRUNCATE_EXISTING, FILE_ATTRIBUTE_NORMAL, 0) - switch e { - case ERROR_FILE_NOT_FOUND, _ERROR_BAD_NETPATH, ERROR_PATH_NOT_FOUND: - // File does not exist. These are the same - // errors as Errno.Is checks for ErrNotExist. - // Carry on to create the file. - default: - // Success or some different error. - return h, e - } - } - } - if createmode == OPEN_EXISTING && access == GENERIC_READ { - // Necessary for opening directory handles. - attrs |= FILE_FLAG_BACKUP_SEMANTICS - } - if mode&O_SYNC != 0 { - const _FILE_FLAG_WRITE_THROUGH = 0x80000000 - attrs |= _FILE_FLAG_WRITE_THROUGH - } - if mode&O_NONBLOCK != 0 { - attrs |= FILE_FLAG_OVERLAPPED - } - return CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) -} - -func makeInheritSa() *SecurityAttributes { - var sa SecurityAttributes - sa.Length = uint32(unsafe.Sizeof(sa)) - sa.InheritHandle = 1 - return &sa -} |