[collectd] disk plugin patch

[Oleg King]

Hello!

  Sorry for sending merged patches.
  Disk plugin patch makes possible to ciollect disk usage information
  using libstatgrab library:

diff -pur collectd/configure.in collectd.my/configure.in
--- collectd/configure.in       2008-05-01 20:08:59.000000000 +0400
+++ collectd.my/configure.in    2008-05-01 20:10:30.000000000 +0400
@@ -2331,6 +2331,7 @@ fi
 # libstatgrab
 if test "x$with_libstatgrab" = "xyes"
 then
+       plugin_disk="yes"
        plugin_interface="yes"
        plugin_load="yes"
        plugin_memory="yes"
diff -pur collectd/src/Makefile.am collectd.my/src/Makefile.am
--- collectd/src/Makefile.am    2008-05-01 20:09:00.000000000 +0400
+++ collectd.my/src/Makefile.am 2008-05-01 20:10:11.000000000 +0400
@@ -193,6 +193,10 @@ endif
 if BUILD_WITH_LIBIOKIT
 disk_la_LDFLAGS += -lIOKit
 endif
+if BUILD_WITH_LIBSTATGRAB
+disk_la_CFLAGS = $(BUILD_WITH_LIBSTATGRAB_CFLAGS)
+disk_la_LIBADD = $(BUILD_WITH_LIBSTATGRAB_LDFLAGS)
+endif
 collectd_LDADD += "-dlopen" disk.la
 collectd_DEPENDENCIES += disk.la
 endif
diff -pur collectd/src/disk.c collectd.my/src/disk.c
--- collectd/src/disk.c 2008-05-01 20:09:00.000000000 +0400
+++ collectd.my/src/disk.c      2008-05-01 03:04:56.000000000 +0400
@@ -59,6 +59,10 @@
 #  define UINT_MAX 4294967295U
 #endif

+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
 #if HAVE_IOKIT_IOKITLIB_H
 static mach_port_t io_master_port = MACH_PORT_NULL;
 /* #endif HAVE_IOKIT_IOKITLIB_H */
@@ -98,6 +102,9 @@ static kstat_t *ksp[MAX_NUMDISK];
 static int numdisk = 0;
 /* #endif HAVE_LIBKSTAT */
+#elif defined(HAVE_LIBSTATGRAB)
+/* #endif HAVE_LIBKSTATGRAB */ 
+
 #else
 # error "No applicable input method."
 #endif
@@ -663,6 +670,22 @@ static int disk_read (void)
        }
 #endif /* defined(HAVE_LIBKSTAT) */
 
+#if defined(HAVE_LIBSTATGRAB)
+        sg_disk_io_stats *ds;
+        int disks, counter;  
+        char name[16];
+        
+        if ((ds = sg_get_disk_io_stats(&disks)) == NULL)
+                return (0);
+                
+       for (counter=0; counter < disks; counter++) {
+               strncpy(name, ds->disk_name, sizeof(name));
+               name[sizeof(name)-1] = '\0'; /* strncpy doesn't terminate longer strings */
+               disk_submit (name, "disk_octets", ds->read_bytes, ds->write_bytes);
+               ds++;
+       }
+#endif /* defined(HAVE_LIBSTATGRAB) */
+
        return (0);
 } /* int disk_read */

-- 
WBR,
 Oleg                          mailto:king2 at kaluga.ru