For someone using NFS or some other remote filesystems, one may have experienced many times the nasty silent hang. For example, if I run `ls /mnt/remote/nfsmount`, and the remote NFS server is down while /mnt/remote/nfsmount was mounted, it will take very long time or forever for the `ls` command to return an error. Imagine if it were not `ls` but a data producing program, or user's home directly, it will be very inconvenient. Since I want to learn D, I want to write a program that does:
1. Check a path and to see it is a mount point. If it is not a mount point, try to mount it, and send an email. If it is a mount point, go to step 2.
2. If it is amount point, but fails to response after a certain time period (e.g 5 seconds), then send an email.

I know nothing about how to write it in D, or which library to use. So, some help please.

On Monday, 11 December 2017 at 10:50:17 UTC, biocyberman wrote:
> For someone using NFS or some other remote filesystems, one may have experienced many times the nasty silent hang. For example, if I run `ls /mnt/remote/nfsmount`, and the remote NFS server is down while /mnt/remote/nfsmount was mounted, it will take very long time or forever for the `ls` command to return an error. Imagine if it were not `ls` but a data producing program, or user's home directly, it will be very inconvenient. Since I want to learn D, I want to write a program that does:
> 1. Check a path and to see it is a mount point. If it is not a mount point, try to mount it, and send an email. If it is a mount point, go to step 2.
> 2. If it is amount point, but fails to response after a certain time period (e.g 5 seconds), then send an email.
>
> I know nothing about how to write it in D, or which library to use. So, some help please.

You will need to use the system APIs for that I assume, nothing special for that. Just search for how to do what you want, probably in C, and translate that to D.

As for the email, not so sure.