Allow microsecond resolution in fs.utimes?

[joliss]

Node's fs.utimes currently only supports 1-second-resolution time (see fs.c:580), making the round-trip to fs.stat lossy.

It seems we might be able to use the utimes system call instead of utime to get microsecond resolution.

@tjfontaine points out that you can use fs.futimes as a workaround. However, this still doesn't cover the case where we want to set the time on directories, because mkdir doesn't give us a file descriptor. So now I'm sad about the lack of microsecond resolution.

[saghul]

Do you have any proposal in mind?

[joliss]

I don't know the code well enough, unfortunately.

[txdv]

There is no need to know the code.

grep utime -r src/unix/

Change to utimes, make it compile, add test case, make pull request.

[saghul]

No follow-up, closing. Please open a PR in libuv/libuv if any of you want to work on this.