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std.Io.Threaded: implement fileStat for Windows

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This commit is contained in:
Andrew Kelley 2025-10-23 09:40:32 -07:00
parent 5d7672f2ad
commit 5c527a1854
2 changed files with 62 additions and 66 deletions
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84
lib/std/Io/Threaded.zig
View File

@ -1033,7 +1033,7 @@ fn dirMakePathPosix(userdata: ?*anyopaque, dir: Io.Dir, sub_path: []const u8, mo
_ = dir; _ = dir;
_ = sub_path; _ = sub_path;
_ = mode; _ = mode;
@panic("TODO"); @panic("TODO implement dirMakePathPosix");
} }
fn dirMakePathWindows(userdata: ?*anyopaque, dir: Io.Dir, sub_path: []const u8, mode: Io.Dir.Mode) Io.Dir.MakeError!void { fn dirMakePathWindows(userdata: ?*anyopaque, dir: Io.Dir, sub_path: []const u8, mode: Io.Dir.Mode) Io.Dir.MakeError!void {
@ -1042,7 +1042,7 @@ fn dirMakePathWindows(userdata: ?*anyopaque, dir: Io.Dir, sub_path: []const u8,
_ = dir; _ = dir;
_ = sub_path; _ = sub_path;
_ = mode; _ = mode;
@panic("TODO"); @panic("TODO implement dirMakePathWindows");
} }
fn dirMakeOpenPathPosix( fn dirMakeOpenPathPosix(
@ -1176,7 +1176,7 @@ fn dirMakeOpenPathWasi(
_ = dir; _ = dir;
_ = sub_path; _ = sub_path;
_ = mode; _ = mode;
@panic("TODO"); @panic("TODO implement dirMakeOpenPathWindows");
} }
fn dirStat(userdata: ?*anyopaque, dir: Io.Dir) Io.Dir.StatError!Io.Dir.Stat { fn dirStat(userdata: ?*anyopaque, dir: Io.Dir) Io.Dir.StatError!Io.Dir.Stat {
@ -1184,7 +1184,7 @@ fn dirStat(userdata: ?*anyopaque, dir: Io.Dir) Io.Dir.StatError!Io.Dir.Stat {
try t.checkCancel(); try t.checkCancel();
_ = dir; _ = dir;
@panic("TODO"); @panic("TODO implement dirStat");
} }
fn dirStatPathLinux( fn dirStatPathLinux(
@ -1375,8 +1375,48 @@ fn fileStatLinux(userdata: ?*anyopaque, file: Io.File) Io.File.StatError!Io.File
fn fileStatWindows(userdata: ?*anyopaque, file: Io.File) Io.File.StatError!Io.File.Stat { fn fileStatWindows(userdata: ?*anyopaque, file: Io.File) Io.File.StatError!Io.File.Stat {
const t: *Threaded = @ptrCast(@alignCast(userdata)); const t: *Threaded = @ptrCast(@alignCast(userdata));
try t.checkCancel(); try t.checkCancel();
_ = file;
@panic("TODO"); var io_status_block: windows.IO_STATUS_BLOCK = undefined;
var info: windows.FILE_ALL_INFORMATION = undefined;
const rc = windows.ntdll.NtQueryInformationFile(file.handle, &io_status_block, &info, @sizeOf(windows.FILE_ALL_INFORMATION), .FileAllInformation);
switch (rc) {
.SUCCESS => {},
// Buffer overflow here indicates that there is more information available than was able to be stored in the buffer
// size provided. This is treated as success because the type of variable-length information that this would be relevant for
// (name, volume name, etc) we don't care about.
.BUFFER_OVERFLOW => {},
.INVALID_PARAMETER => unreachable,
.ACCESS_DENIED => return error.AccessDenied,
else => return windows.unexpectedStatus(rc),
}
return .{
.inode = info.InternalInformation.IndexNumber,
.size = @as(u64, @bitCast(info.StandardInformation.EndOfFile)),
.mode = 0,
.kind = if (info.BasicInformation.FileAttributes & windows.FILE_ATTRIBUTE_REPARSE_POINT != 0) reparse_point: {
var tag_info: windows.FILE_ATTRIBUTE_TAG_INFO = undefined;
const tag_rc = windows.ntdll.NtQueryInformationFile(file.handle, &io_status_block, &tag_info, @sizeOf(windows.FILE_ATTRIBUTE_TAG_INFO), .FileAttributeTagInformation);
switch (tag_rc) {
.SUCCESS => {},
// INFO_LENGTH_MISMATCH and ACCESS_DENIED are the only documented possible errors
// https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/d295752f-ce89-4b98-8553-266d37c84f0e
.INFO_LENGTH_MISMATCH => unreachable,
.ACCESS_DENIED => return error.AccessDenied,
else => return windows.unexpectedStatus(rc),
}
if (tag_info.ReparseTag & windows.reparse_tag_name_surrogate_bit != 0) {
break :reparse_point .sym_link;
}
// Unknown reparse point
break :reparse_point .unknown;
} else if (info.BasicInformation.FileAttributes & windows.FILE_ATTRIBUTE_DIRECTORY != 0)
.directory
else
.file,
.atime = windows.fromSysTime(info.BasicInformation.LastAccessTime),
.mtime = windows.fromSysTime(info.BasicInformation.LastWriteTime),
.ctime = windows.fromSysTime(info.BasicInformation.ChangeTime),
};
} }
fn fileStatWasi(userdata: ?*anyopaque, file: Io.File) Io.File.StatError!Io.File.Stat { fn fileStatWasi(userdata: ?*anyopaque, file: Io.File) Io.File.StatError!Io.File.Stat {
@ -2490,7 +2530,7 @@ fn fileSeekBy(userdata: ?*anyopaque, file: Io.File, offset: i64) Io.File.SeekErr
_ = file; _ = file;
_ = offset; _ = offset;
@panic("TODO"); @panic("TODO implement fileSeekBy");
} }
fn fileSeekTo(userdata: ?*anyopaque, file: Io.File, offset: u64) Io.File.SeekError!void { fn fileSeekTo(userdata: ?*anyopaque, file: Io.File, offset: u64) Io.File.SeekError!void {
@ -2571,7 +2611,7 @@ fn openSelfExe(userdata: ?*anyopaque, flags: Io.File.OpenFlags) Io.File.OpenSelf
return dirOpenFileWindowsInner(t, .{ .handle = cwd_handle }, image_path_name, flags); return dirOpenFileWindowsInner(t, .{ .handle = cwd_handle }, image_path_name, flags);
} }
@panic("TODO"); @panic("TODO implement openSelfExe");
} }
fn fileWritePositional( fn fileWritePositional(
@ -2586,7 +2626,7 @@ fn fileWritePositional(
_ = file; _ = file;
_ = buffer; _ = buffer;
_ = offset; _ = offset;
@panic("TODO"); @panic("TODO implement fileWritePositional");
} }
} }
@ -2596,7 +2636,7 @@ fn fileWriteStreaming(userdata: ?*anyopaque, file: Io.File, buffer: [][]const u8
try t.checkCancel(); try t.checkCancel();
_ = file; _ = file;
_ = buffer; _ = buffer;
@panic("TODO"); @panic("TODO implement fileWriteStreaming");
} }
} }
@ -2922,7 +2962,7 @@ fn netListenUnixWindows(
try t.checkCancel(); try t.checkCancel();
_ = address; _ = address;
_ = options; _ = options;
@panic("TODO"); @panic("TODO implement netListenUnixWindows");
} }
fn posixBindUnix(t: *Threaded, fd: posix.socket_t, addr: *const posix.sockaddr, addr_len: posix.socklen_t) !void { fn posixBindUnix(t: *Threaded, fd: posix.socket_t, addr: *const posix.sockaddr, addr_len: posix.socklen_t) !void {
@ -3122,7 +3162,7 @@ fn netConnectIpPosix(
options: IpAddress.ConnectOptions, options: IpAddress.ConnectOptions,
) IpAddress.ConnectError!net.Stream { ) IpAddress.ConnectError!net.Stream {
if (!have_networking) return error.NetworkDown; if (!have_networking) return error.NetworkDown;
if (options.timeout != .none) @panic("TODO"); if (options.timeout != .none) @panic("TODO implement netConnectIpPosix with timeout");
const t: *Threaded = @ptrCast(@alignCast(userdata)); const t: *Threaded = @ptrCast(@alignCast(userdata));
const family = posixAddressFamily(address); const family = posixAddressFamily(address);
const socket_fd = try openSocketPosix(t, family, .{ const socket_fd = try openSocketPosix(t, family, .{
@ -3146,7 +3186,7 @@ fn netConnectIpWindows(
options: IpAddress.ConnectOptions, options: IpAddress.ConnectOptions,
) IpAddress.ConnectError!net.Stream { ) IpAddress.ConnectError!net.Stream {
if (!have_networking) return error.NetworkDown; if (!have_networking) return error.NetworkDown;
if (options.timeout != .none) @panic("TODO"); if (options.timeout != .none) @panic("TODO implement netConnectIpWindows with timeout");
const t: *Threaded = @ptrCast(@alignCast(userdata)); const t: *Threaded = @ptrCast(@alignCast(userdata));
const family = posixAddressFamily(address); const family = posixAddressFamily(address);
const socket_handle = try openSocketWsa(t, family, .{ const socket_handle = try openSocketWsa(t, family, .{
@ -3220,7 +3260,7 @@ fn netConnectUnixWindows(
const t: *Threaded = @ptrCast(@alignCast(userdata)); const t: *Threaded = @ptrCast(@alignCast(userdata));
try t.checkCancel(); try t.checkCancel();
_ = address; _ = address;
@panic("TODO"); @panic("TODO implement netConnectUnixWindows");
} }
fn netBindIpPosix( fn netBindIpPosix(
@ -3525,7 +3565,7 @@ fn netReadWindows(userdata: ?*anyopaque, handle: net.Socket.Handle, data: [][]u8
_ = t; _ = t;
_ = handle; _ = handle;
_ = data; _ = data;
@panic("TODO"); @panic("TODO implement netReadWindows");
} }
fn netSendPosix( fn netSendPosix(
@ -3569,7 +3609,7 @@ fn netSendWindows(
_ = handle; _ = handle;
_ = messages; _ = messages;
_ = flags; _ = flags;
@panic("TODO"); @panic("TODO netSendWindows");
} }
fn netSendOne( fn netSendOne(
@ -3872,7 +3912,7 @@ fn netReceiveWindows(
_ = data_buffer; _ = data_buffer;
_ = flags; _ = flags;
_ = timeout; _ = timeout;
@panic("TODO"); @panic("TODO implement netReceiveWindows");
} }
fn netWritePosix( fn netWritePosix(
@ -3970,7 +4010,7 @@ fn netWriteWindows(
_ = header; _ = header;
_ = data; _ = data;
_ = splat; _ = splat;
@panic("TODO"); @panic("TODO implement netWriteWindows");
} }
fn addBuf(v: []posix.iovec_const, i: *@FieldType(posix.msghdr_const, "iovlen"), bytes: []const u8) void { fn addBuf(v: []posix.iovec_const, i: *@FieldType(posix.msghdr_const, "iovlen"), bytes: []const u8) void {
@ -4036,7 +4076,7 @@ fn netInterfaceNameResolve(
if (native_os == .windows) { if (native_os == .windows) {
try t.checkCancel(); try t.checkCancel();
@panic("TODO"); @panic("TODO implement netInterfaceNameResolve for Windows");
} }
if (builtin.link_libc) { if (builtin.link_libc) {
@ -4055,15 +4095,15 @@ fn netInterfaceName(userdata: ?*anyopaque, interface: net.Interface) net.Interfa
if (native_os == .linux) { if (native_os == .linux) {
_ = interface; _ = interface;
@panic("TODO"); @panic("TODO implement netInterfaceName for linux");
} }
if (native_os == .windows) { if (native_os == .windows) {
@panic("TODO"); @panic("TODO implement netInterfaceName for windows");
} }
if (builtin.link_libc) { if (builtin.link_libc) {
@panic("TODO"); @panic("TODO implement netInterfaceName for libc");
} }
@panic("unimplemented"); @panic("unimplemented");

44
lib/std/fs/File.zig
View File

@ -312,50 +312,6 @@ pub const StatError = posix.FStatError;
/// Returns `Stat` containing basic information about the `File`. /// Returns `Stat` containing basic information about the `File`.
pub fn stat(self: File) StatError!Stat { pub fn stat(self: File) StatError!Stat {
if (builtin.os.tag == .windows) {
var io_status_block: windows.IO_STATUS_BLOCK = undefined;
var info: windows.FILE_ALL_INFORMATION = undefined;
const rc = windows.ntdll.NtQueryInformationFile(self.handle, &io_status_block, &info, @sizeOf(windows.FILE_ALL_INFORMATION), .FileAllInformation);
switch (rc) {
.SUCCESS => {},
// Buffer overflow here indicates that there is more information available than was able to be stored in the buffer
// size provided. This is treated as success because the type of variable-length information that this would be relevant for
// (name, volume name, etc) we don't care about.
.BUFFER_OVERFLOW => {},
.INVALID_PARAMETER => unreachable,
.ACCESS_DENIED => return error.AccessDenied,
else => return windows.unexpectedStatus(rc),
}
return .{
.inode = info.InternalInformation.IndexNumber,
.size = @as(u64, @bitCast(info.StandardInformation.EndOfFile)),
.mode = 0,
.kind = if (info.BasicInformation.FileAttributes & windows.FILE_ATTRIBUTE_REPARSE_POINT != 0) reparse_point: {
var tag_info: windows.FILE_ATTRIBUTE_TAG_INFO = undefined;
const tag_rc = windows.ntdll.NtQueryInformationFile(self.handle, &io_status_block, &tag_info, @sizeOf(windows.FILE_ATTRIBUTE_TAG_INFO), .FileAttributeTagInformation);
switch (tag_rc) {
.SUCCESS => {},
// INFO_LENGTH_MISMATCH and ACCESS_DENIED are the only documented possible errors
// https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/d295752f-ce89-4b98-8553-266d37c84f0e
.INFO_LENGTH_MISMATCH => unreachable,
.ACCESS_DENIED => return error.AccessDenied,
else => return windows.unexpectedStatus(rc),
}
if (tag_info.ReparseTag & windows.reparse_tag_name_surrogate_bit != 0) {
break :reparse_point .sym_link;
}
// Unknown reparse point
break :reparse_point .unknown;
} else if (info.BasicInformation.FileAttributes & windows.FILE_ATTRIBUTE_DIRECTORY != 0)
.directory
else
.file,
.atime = windows.fromSysTime(info.BasicInformation.LastAccessTime),
.mtime = windows.fromSysTime(info.BasicInformation.LastWriteTime),
.ctime = windows.fromSysTime(info.BasicInformation.ChangeTime),
};
}
var threaded: Io.Threaded = .init_single_threaded; var threaded: Io.Threaded = .init_single_threaded;
const io = threaded.io(); const io = threaded.io();
return Io.File.stat(.{ .handle = self.handle }, io); return Io.File.stat(.{ .handle = self.handle }, io);