servers/is/dmp_fs.c

   1 /* This file contains procedures to dump to FS' data structures.
   2  *
   3  * The entry points into this file are
   4  *   dtab_dump:         display device <-> driver mappings
   5  *   fproc_dump:        display FS process table
   6  *
   7  * Created:
   8  *   Oct 01, 2004:      by Jorrit N. Herder
   9  */
  10
  11 #include "inc.h"
  12 #include "../mfs/const.h"
  13 #include "../vfs/const.h"
  14 #include "../vfs/fproc.h"
  15 #include "../vfs/dmap.h"
  16 #include <minix/dmap.h>
  17
  18 struct fproc fproc[NR_PROCS];
  19 struct dmap dmap[NR_DEVICES];
  20
  21 /*===========================================================================*
  22  *                              fproc_dmp                                    *
  23  *===========================================================================*/
  24 void fproc_dmp()
  25 {
  26   struct fproc *fp;
  27   int i, n=0;
  28   static int prev_i;
  29
  30   if (getsysinfo(VFS_PROC_NR, SI_PROC_TAB, fproc, sizeof(fproc)) != OK) {
  31         printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
  32         return;
  33   }
  34
  35   printf("File System (FS) process table dump\n");
  36   printf("-nr- -pid- -tty- -umask- --uid-- --gid-- -ldr- -sus-rev-proc-\n");
  37   for (i=prev_i; i<NR_PROCS; i++) {
  38         fp = &fproc[i];
  39         if (fp->fp_pid <= 0) continue;
  40         if (++n > 22) break;
  41         printf("%3d  %4d  %2d/%d  0x%05x %2d (%2d) %2d (%2d) %3d   %3d %3d ",
  42                 i, fp->fp_pid,
  43                 major(fp->fp_tty), minor(fp->fp_tty),
  44                 fp->fp_umask,
  45                 fp->fp_realuid, fp->fp_effuid, fp->fp_realgid, fp->fp_effgid,
  46                 !!(fp->fp_flags & FP_SESLDR),
  47                 fp->fp_blocked_on, !!(fp->fp_flags & FP_REVIVED)
  48         );
  49         if (fp->fp_blocked_on == FP_BLOCKED_ON_OTHER)
  50                 printf("%4d\n", fp->fp_task);
  51         else
  52                 printf(" nil\n");
  53   }
  54   if (i >= NR_PROCS) i = 0;
  55   else printf("--more--\r");
  56   prev_i = i;
  57 }
  58
  59 /*===========================================================================*
  60  *                              dmap_flags                                   *
  61  *===========================================================================*/
  62 static char * dmap_flags(int flags)
  63 {
  64         static char fl[10];
  65         strlcpy(fl, "-----", sizeof(fl));
  66         if(flags & DRV_FORCED)  fl[0] = 'F';
  67         return fl;
  68 }
  69
  70 /*===========================================================================*
  71  *                              dmap_style                                   *
  72  *===========================================================================*/
  73 static char * dmap_style(int dev_style)
  74 {
  75         switch(dev_style) {
  76         case STYLE_DEV:      return "STYLE_DEV";
  77         case STYLE_DEVA:     return "STYLE_DEVA";
  78         case STYLE_TTY:      return "STYLE_TTY";
  79         case STYLE_CTTY:     return "STYLE_CTTY";
  80         case STYLE_CLONE:    return "STYLE_CLONE";
  81         case STYLE_CLONE_A:  return "STYLE_CLONE_A";
  82         default:             return "UNKNOWN";
  83         }
  84 }
  85
  86 /*===========================================================================*
  87  *                              dtab_dmp                                     *
  88  *===========================================================================*/
  89 void dtab_dmp()
  90 {
  91     int i;
  92
  93     if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK) {
  94         printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
  95         return;
  96     }
  97
  98     printf("File System (FS) device <-> driver mappings\n");
  99     printf("    Label     Major Driver ept Flags     Style   \n");
 100     printf("------------- ----- ---------- ----- -------------\n");
 101     for (i=0; i<NR_DEVICES; i++) {
 102         if (dmap[i].dmap_driver == NONE) continue;
 103         printf("%13s %5d %10d %s %-13s\n",
 104                 dmap[i].dmap_label, i, dmap[i].dmap_driver,
 105                 dmap_flags(dmap[i].dmap_flags), dmap_style(dmap[i].dmap_style));
 106     }
 107 }
 108