library: Cygwin doesnt have /proc/vmstat

Make the vmstat_read_failed() return non-error for Cygwin as
it always will error because /proc/vmstat doesn't exist.

Patch from Achim of the Cygwin project.

Signed-off-by: Craig Small <csmall@dropbear.xyz>

diff --git a/proc/vmstat.c b/proc/vmstat.c
index fa6359ab4f439b9b8b175fd8c3681e60c3121e00..2a6b95148a5983342c8d8698d988a19963613163 100644 (file)
--- a/proc/vmstat.c
+++ b/proc/vmstat.c
@@ -1170,6 +1170,7 @@ static int vmstat_read_failed (
     // clear out the soon to be 'current' values
     memset(&info->hist.new, 0, sizeof(struct vmstat_data));
 
+#ifndef __CYGWIN__ /* /proc/vmstat does not exist */
     if (-1 == info->vmstat_fd
     && (-1 == (info->vmstat_fd = open(VMSTAT_FILE, O_RDONLY))))
         return 1;
@@ -1213,7 +1214,7 @@ static int vmstat_read_failed (
             break;
         head = tail + 1;
     }
-
+#endif /* !__CYGWIN__ */
     return 0;
 } // end: vmstat_read_failed