minix/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
  25 fproc_dmp(void)
  26 {
  27   struct fproc *fp;
  28   int i, j, nfds, n=0;
  29   static int prev_i;
  30
  31   if (getsysinfo(VFS_PROC_NR, SI_PROC_TAB, fproc, sizeof(fproc)) != OK) {
  32         printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
  33         return;
  34   }
  35
  36   printf("File System (FS) process table dump\n");
  37   printf("-nr- -pid- -tty- -umask- --uid-- --gid-- -ldr-fds-sus-rev-proc-\n");
  38   for (i=prev_i; i<NR_PROCS; i++) {
  39         fp = &fproc[i];
  40         if (fp->fp_pid <= 0) continue;
  41         if (++n > 22) break;
  42         for (j = nfds = 0; j < OPEN_MAX; j++)
  43                 if (fp->fp_filp[j] != NULL) nfds++;
  44         printf("%3d  %4d  %2d/%d  0x%05x %2d (%2d) %2d (%2d) %3d %3d %3d %3d ",
  45                 i, fp->fp_pid,
  46                 major(fp->fp_tty), minor(fp->fp_tty),
  47                 fp->fp_umask,
  48                 fp->fp_realuid, fp->fp_effuid, fp->fp_realgid, fp->fp_effgid,
  49                 !!(fp->fp_flags & FP_SESLDR), nfds,
  50                 fp->fp_blocked_on, !!(fp->fp_flags & FP_REVIVED)
  51         );
  52         if (fp->fp_blocked_on == FP_BLOCKED_ON_CDEV)
  53                 printf("%4d\n", fp->fp_cdev.endpt);
  54         /* TODO: for FP_BLOCKED_ON_SDEV we do not have the endpoint.. */
  55         else
  56                 printf(" nil\n");
  57   }
  58   if (i >= NR_PROCS) i = 0;
  59   else printf("--more--\r");
  60   prev_i = i;
  61 }
  62
  63 /*===========================================================================*
  64  *                              dtab_dmp                                     *
  65  *===========================================================================*/
  66 void
  67 dtab_dmp(void)
  68 {
  69     int i;
  70
  71     if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK) {
  72         printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
  73         return;
  74     }
  75
  76     printf("File System (FS) device <-> driver mappings\n");
  77     printf("    Label     Major Driver ept\n");
  78     printf("------------- ----- ----------\n");
  79     for (i=0; i<NR_DEVICES; i++) {
  80         if (dmap[i].dmap_driver == NONE) continue;
  81         printf("%13s %5d %10d\n", dmap[i].dmap_label, i, dmap[i].dmap_driver);
  82     }
  83 }