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std.Io.Threaded: mostly implement fileSetTimestamps for Windows

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it's still missing the case of setting to now (which was also not
implemented before)
This commit is contained in:
Andrew Kelley 2025-12-27 10:52:17 -08:00
parent a7c9d11b28
commit dd98188ce0
1 changed files with 28 additions and 5 deletions
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33
lib/std/Io/Threaded.zig
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@ -6046,11 +6046,34 @@ fn fileSetTimestamps(
if (is_windows) {
try current_thread.checkCancel();
const atime_ft = windows.nanoSecondsToFileTime(options.access_time);
const mtime_ft = windows.nanoSecondsToFileTime(options.modify_time);
var access_time_buffer: windows.FILETIME = undefined;
var modify_time_buffer: windows.FILETIME = undefined;
var system_time_buffer: windows.LARGE_INTEGER = undefined;
if (options.access_timestamp == .now or options.modify_timestamp == .now) {
system_time_buffer = windows.ntdll.RtlGetSystemTimePrecise();
}
const access_ptr = switch (options.access_timestamp) {
.unchanged => null,
.now => @panic("TODO do SystemTimeToFileTime logic here"),
.new => |ts| p: {
access_time_buffer = windows.nanoSecondsToFileTime(ts);
break :p &access_time_buffer;
},
};
const modify_ptr = switch (options.modify_timestamp) {
.unchanged => null,
.now => @panic("TODO do SystemTimeToFileTime logic here"),
.new => |ts| p: {
modify_time_buffer = windows.nanoSecondsToFileTime(ts);
break :p &modify_time_buffer;
},
};
// https://github.com/ziglang/zig/issues/1840
const rc = windows.kernel32.SetFileTime(file.handle, null, &atime_ft, &mtime_ft);
const rc = windows.kernel32.SetFileTime(file.handle, null, access_ptr, modify_ptr);
if (rc == 0) {
switch (windows.GetLastError()) {
else => |err| return windows.unexpectedError(err),
@ -6060,8 +6083,8 @@ fn fileSetTimestamps(
}
if (native_os == .wasi and !builtin.link_libc) {
const atim = timestampToPosix(options.access_time.nanoseconds).toTimestamp();
const mtim = timestampToPosix(options.modify_time.nanoseconds).toTimestamp();
const atim = timestampToPosix(options.access_timestamp.nanoseconds).toTimestamp();
const mtim = timestampToPosix(options.modify_timestamp.nanoseconds).toTimestamp();
try current_thread.beginSyscall();
while (true) switch (std.os.wasi.fd_filestat_set_times(file.handle, atim, mtim, .{
.ATIM = true,