Add linux-specific core.sys.linux.file module

[Burgos]

This adds core.sys.linux.file module which contains
flock function definition and values of the parameters
to pass.

[CyberShadow]

I believe this should be core.sys.linux.sys.file to follow the naming scheme for sys/file.h.

[CyberShadow]

BTW, unless you specifically need advisory-only locks, we already have definitions for fcntl locks, also exposed via std.stdio.File.lock() etc.

[CyberShadow]

Makefiles and file lists need to be modified when adding new modules. See all occurrences of an existing module name for an example, e.g. git grep timerfd | grep -v ^src/.

[Burgos]

I believe this should be core.sys.linux.sys.file to follow the naming scheme for sys/file.h.

Thanks, I got fooled by the sys prefix.

Updated with moved location and updated make/COPY, win32.mak and win64.mak files.

[CyberShadow]

This one isn't in my file.h. Is it Debian-specific?

[CyberShadow]

I think this one is only implemented in the GNU Hurd kernel.

[Burgos]

Hmm, I got it from mine (Ubuntu's) file.h, but I don't see it on glibc's upstream file.h, so I'll remove it.

Thanks and good catch!

[Burgos]

Updated with __LOCK_ATOMIC removed.

[DmitryOlshansky]

Auto-merge toggled on

[DmitryOlshansky]

Looks good apart from horrible windows makefiles... but that's separate problem.

[andralex]

thx!