BSD 4_3_Reno release

[unix-history] / usr / src / usr.bin / netstat / mbuf.c

diff --git a/usr/src/usr.bin/netstat/mbuf.c b/usr/src/usr.bin/netstat/mbuf.c
index f6a8648..728428c 100644 (file)
--- a/usr/src/usr.bin/netstat/mbuf.c
+++ b/usr/src/usr.bin/netstat/mbuf.c
@@ -1,12 +1,57 @@
+/*
+ * Copyright (c) 1983, 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted provided
+ * that: (1) source distributions retain this entire copyright notice and
+ * comment, and (2) distributions including binaries display the following
+ * acknowledgement:  ``This product includes software developed by the
+ * University of California, Berkeley and its contributors'' in the
+ * documentation or other materials provided with the distribution and in
+ * all advertising materials mentioning features or use of this software.
+ * Neither the name of the University nor the names of its contributors may
+ * be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+

 #ifndef lint
 #ifndef lint

-static char sccsid[] = "@(#)mbuf.c     4.4 82/12/09";
-#endif
+static char sccsid[] = "@(#)mbuf.c     5.9 (Berkeley) 6/18/90";
+#endif /* not lint */

 
 

+#include <stdio.h>

 #include <sys/param.h>
 #include <sys/mbuf.h>
 #include <sys/param.h>
 #include <sys/mbuf.h>

+#define        YES     1
+typedef int bool;

 
 struct mbstat mbstat;
 
 struct mbstat mbstat;

-extern int kmem;
+
+static struct mbtypes {
+       int     mt_type;
+       char    *mt_name;
+} mbtypes[] = {
+       { MT_DATA,      "data" },
+       { MT_OOBDATA,   "oob data" },
+       { MT_CONTROL,   "ancillary data" },
+       { MT_HEADER,    "packet headers" },
+       { MT_SOCKET,    "socket structures" },                  /* XXX */
+       { MT_PCB,       "protocol control blocks" },            /* XXX */
+       { MT_RTABLE,    "routing table entries" },              /* XXX */
+       { MT_HTABLE,    "IMP host table entries" },             /* XXX */
+       { MT_ATABLE,    "address resolution tables" },
+       { MT_FTABLE,    "fragment reassembly queue headers" },  /* XXX */
+       { MT_SONAME,    "socket names and addresses" },
+       { MT_SOOPTS,    "socket options" },
+       { MT_RIGHTS,    "access rights" },
+       { MT_IFADDR,    "interface addresses" },                /* XXX */
+       { 0, 0 }
+};
+
+int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
+bool seen[256];                        /* "have we seen this type yet?" */

 
 /*
  * Print mbuf statistics.
 
 /*
  * Print mbuf statistics.


@@ -14,24 +59,46 @@ extern      int kmem;
 mbpr(mbaddr)
        off_t mbaddr;
 {
 mbpr(mbaddr)
        off_t mbaddr;
 {

-       register int totmem, totfree;
+       register int totmem, totfree, totmbufs;
+       register int i;
+       register struct mbtypes *mp;

 
 

+       if (nmbtypes != 256) {
+               fprintf(stderr, "unexpected change to mbstat; check source\n");
+               return;
+       }

        if (mbaddr == 0) {
                printf("mbstat: symbol not in namelist\n");
                return;
        }
        if (mbaddr == 0) {
                printf("mbstat: symbol not in namelist\n");
                return;
        }

-       klseek(kmem, mbaddr, 0);
-       if (read(kmem, &mbstat, sizeof (mbstat)) != sizeof (mbstat)) {
+       if (kvm_read(mbaddr, (char *)&mbstat, sizeof (mbstat))
+                                               != sizeof (mbstat)) {

                printf("mbstat: bad read\n");
                return;
        }
                printf("mbstat: bad read\n");
                return;
        }

-       printf("%d/%d mbufs in use\n", mbstat.m_mbufs - mbstat.m_mbfree,
-               mbstat.m_mbufs);
-       printf("%d/%d mapped pages in use\n",
+       totmbufs = 0;
+       for (mp = mbtypes; mp->mt_name; mp++)
+               totmbufs += mbstat.m_mtypes[mp->mt_type];
+       printf("%u mbufs in use:\n", totmbufs);
+       for (mp = mbtypes; mp->mt_name; mp++)
+               if (mbstat.m_mtypes[mp->mt_type]) {
+                       seen[mp->mt_type] = YES;
+                       printf("\t%u mbufs allocated to %s\n",
+                           mbstat.m_mtypes[mp->mt_type], mp->mt_name);
+               }
+       seen[MT_FREE] = YES;
+       for (i = 0; i < nmbtypes; i++)
+               if (!seen[i] && mbstat.m_mtypes[i]) {
+                       printf("\t%u mbufs allocated to <mbuf type %d>\n",
+                           mbstat.m_mtypes[i], i);
+               }
+       printf("%u/%u mapped pages in use\n",

                mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
                mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);

-       printf("%d requests for memory denied\n", mbstat.m_drops);
-       totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * CLBYTES;
-       totfree = mbstat.m_mbfree * MSIZE + mbstat.m_clusters * CLBYTES;
-       printf("%dKbytes allocated to network (%d%% in use)\n",
+       totmem = totmbufs * MSIZE + mbstat.m_clusters * CLBYTES;
+       totfree = mbstat.m_clfree * CLBYTES;
+       printf("%u Kbytes allocated to network (%d%% in use)\n",

                totmem / 1024, (totmem - totfree) * 100 / totmem);
                totmem / 1024, (totmem - totfree) * 100 / totmem);

+       printf("%u requests for memory denied\n", mbstat.m_drops);
+       printf("%u requests for memory delayed\n", mbstat.m_wait);
+       printf("%u calls to protocol drain routines\n", mbstat.m_drain);

 }
 }