[PATCH] implement /proc/swaps

[Yaakov (Cygwin/X)]

This patch implements /proc/swaps, as found on Linux[1]:

$ cat /proc/swaps
Filename				Type		Size	Used	Priority
/cygdrive/c/pagefile.sys                file            4192440 16376   0
/cygdrive/d/pagefile.sys                file            4192440 14208   0

(The first line is tab-delineated, the following lines use spaces.)

If there is no paging file on the system (a legal but discouraged
configuration), then only the header line is displayed.

According to Microsoft[2], there's no simple way to set or determine
which paging file will be used at any given time.  Therefore I list all
paging files with priority 0.

Patches for winsup/cygwin and winsup/doc attached.


Yaakov

[1] http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-proc-swaps.html
[2] http://support.microsoft.com/kb/314482

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