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cleanup

master
Andrew Kelley 2019-10-21 20:16:43 -04:00
parent 98c4365b66
commit 5917572e59
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GPG Key ID: 7C5F548F728501A9
1 changed files with 19 additions and 57 deletions
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76
lib/std/fs.zig
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@ -377,6 +377,8 @@ pub const Dir = struct {
};
};
const IteratorError = error{AccessDenied} || os.UnexpectedError;
pub const Iterator = switch (builtin.os) {
.macosx, .ios, .freebsd, .netbsd => struct {
dir: Dir,
@ -387,9 +389,11 @@ pub const Dir = struct {
const Self = @This();
pub const Error = IteratorError;
/// Memory such as file names referenced in this returned entry becomes invalid
/// with subsequent calls to `next`, as well as when this `Dir` is deinitialized.
pub fn next(self: *Self) !?Entry {
pub fn next(self: *Self) Error!?Entry {
switch (builtin.os) {
.macosx, .ios => return self.nextDarwin(),
.freebsd, .netbsd => return self.nextBsd(),
@ -504,9 +508,11 @@ pub const Dir = struct {
const Self = @This();
pub const Error = IteratorError;
/// Memory such as file names referenced in this returned entry becomes invalid
/// with subsequent calls to `next`, as well as when this `Dir` is deinitialized.
pub fn next(self: *Self) !?Entry {
pub fn next(self: *Self) Error!?Entry {
start_over: while (true) {
if (self.index >= self.end_index) {
const rc = os.linux.getdents64(self.dir.fd, &self.buf, self.buf.len);
@ -560,17 +566,13 @@ pub const Dir = struct {
const Self = @This();
pub fn next(self: *Self) !?Entry {
pub const Error = IteratorError;
pub fn next(self: *Self) Error!?Entry {
start_over: while (true) {
const w = os.windows;
if (self.index >= self.end_index) {
var io: w.IO_STATUS_BLOCK = undefined;
//var mask_buf = [2]u16{ 'a', 0 };
//var mask = w.UNICODE_STRING{
// .Length = 2,
// .MaximumLength = 2,
// .Buffer = &mask_buf,
//};
const rc = w.ntdll.NtQueryDirectoryFile(
self.dir.fd,
null,
@ -709,7 +711,6 @@ pub const Dir = struct {
/// Call `close` on the result when done.
pub fn openDir(self: Dir, sub_path: []const u8) OpenError!Dir {
// std.debug.warn("openDir {}\n", sub_path);
if (os.windows.is_the_target) {
const sub_path_w = try os.windows.sliceToPrefixedFileW(sub_path);
return self.openDirW(&sub_path_w);
@ -746,39 +747,7 @@ pub const Dir = struct {
.fd = undefined,
};
const desired_access = w.GENERIC_READ | w.SYNCHRONIZE;
// if (sub_path_w[0] == '.' and sub_path_w[1] == 0) {
// // Windows gives me STATUS_OBJECT_NAME_INVALID with "." as the object name.
// if (w.kernel32.DuplicateHandle(w.self_process_handle, self.fd, w.self_process_handle, &result.fd, desired_access, w.TRUE, 0) == 0) {
// switch (w.kernel32.GetLastError()) {
// else => |err| return w.unexpectedError(err),
// }
// @panic("handle DuplicateHandle error");
// }
// return result;
// }
//var mask: ?[*]const u16 = undefined;
//var nt_name: w.UNICODE_STRING = undefined;
//if (w.ntdll.RtlDosPathNameToNtPathName_U(sub_path_w, &nt_name, null, null) == 0) {
// return error.FileNotFound;
//}
//defer w.ntdll.RtlFreeUnicodeString(&nt_name);
//if (mask) |m| {
// if (m[0] == 0) {
// return error.FileNotFound;
// } else {
// nt_name.Length = @intCast(u16, @ptrToInt(mask) - @ptrToInt(nt_name.Buffer));
// }
//} else {
// return error.FileNotFound;
//}
const path_len_bytes = @intCast(u16, mem.toSliceConst(u16, sub_path_w).len * 2);
// std.debug.warn("path_len_bytes = {}\n", path_len_bytes);
var nt_name = w.UNICODE_STRING{
.Length = path_len_bytes,
.MaximumLength = path_len_bytes,
@ -796,19 +765,15 @@ pub const Dir = struct {
// Windows does not recognize this, but it does work with empty string.
nt_name.Length = 0;
}
// std.debug.warn("RootDirectory = {}\n", attr.RootDirectory);
if (sub_path_w[0] == '.' and sub_path_w[1] == '.' and sub_path_w[2] == 0) {
// If you're looking to contribute to zig and fix this, see here for an example of how to
// implement this: https://git.midipix.org/ntapi/tree/src/fs/ntapi_tt_open_physical_parent_directory.c
@panic("TODO opening '..' with a relative directory handle is not yet implemented on Windows");
}
var io: w.IO_STATUS_BLOCK = undefined;
const wide_slice = nt_name.Buffer[0 .. nt_name.Length / 2];
//const wide_slice2 = std.mem.toSliceConst(u16, mask.?);
var buf: [200]u8 = undefined;
//var buf2: [200]u8 = undefined;
const len = std.unicode.utf16leToUtf8(&buf, wide_slice) catch unreachable;
//const len2 = std.unicode.utf16leToUtf8(&buf2, wide_slice2) catch unreachable;
// std.debug.warn("path: {}\n", buf[0..len]);
//std.debug.warn("path: {}\nmask: {}\n", buf[0..len], buf2[0..len2]);
const rc = w.ntdll.NtCreateFile(
&result.fd,
desired_access,
w.GENERIC_READ | w.SYNCHRONIZE,
&attr,
&io,
null,
@ -819,15 +784,12 @@ pub const Dir = struct {
null,
0,
);
// std.debug.warn("result.fd = {}\n", result.fd);
switch (rc) {
w.STATUS.SUCCESS => return result,
w.STATUS.OBJECT_NAME_INVALID => @panic("openDirW invalid object name"),
w.STATUS.OBJECT_NAME_INVALID => unreachable,
w.STATUS.OBJECT_NAME_NOT_FOUND => return error.FileNotFound,
w.STATUS.OBJECT_PATH_NOT_FOUND => return error.FileNotFound,
w.STATUS.INVALID_PARAMETER => {
@panic("invalid parameter");
},
w.STATUS.INVALID_PARAMETER => unreachable,
else => return w.unexpectedStatus(rc),
}
}