minix/servers/is/dmp_fs.c

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/* This file contains procedures to dump to FS' data structures.
*
* The entry points into this file are
* dtab_dump: display device <-> driver mappings
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* fproc_dump: display FS process table
*
* Created:
* Oct 01, 2004: by Jorrit N. Herder
*/
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#include "inc.h"
#include "../mfs/const.h"
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#include "../vfs/const.h"
#include "../vfs/fproc.h"
#include "../vfs/dmap.h"
#include <minix/dmap.h>
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struct fproc fproc[NR_PROCS];
struct dmap dmap[NR_DEVICES];
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/*===========================================================================*
* fproc_dmp *
*===========================================================================*/
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void fproc_dmp()
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{
struct fproc *fp;
int i, n=0;
static int prev_i;
if (getsysinfo(VFS_PROC_NR, SI_PROC_TAB, fproc, sizeof(fproc)) != OK) {
printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
return;
}
printf("File System (FS) process table dump\n");
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printf("-nr- -pid- -tty- -umask- --uid-- --gid-- -ldr- -sus-rev-proc-\n");
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for (i=prev_i; i<NR_PROCS; i++) {
fp = &fproc[i];
if (fp->fp_pid <= 0) continue;
if (++n > 22) break;
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printf("%3d %4d %2d/%d 0x%05x %2d (%2d) %2d (%2d) %3d %3d %3d ",
i, fp->fp_pid,
major(fp->fp_tty), minor(fp->fp_tty),
fp->fp_umask,
fp->fp_realuid, fp->fp_effuid, fp->fp_realgid, fp->fp_effgid,
!!(fp->fp_flags & FP_SESLDR),
fp->fp_blocked_on, !!(fp->fp_flags & FP_REVIVED)
);
if (fp->fp_blocked_on == FP_BLOCKED_ON_OTHER)
printf("%4d\n", fp->fp_task);
else
printf(" nil\n");
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}
if (i >= NR_PROCS) i = 0;
else printf("--more--\r");
prev_i = i;
}
/*===========================================================================*
* dmap_flags *
*===========================================================================*/
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static char * dmap_flags(int flags)
{
static char fl[10];
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strlcpy(fl, "-----", sizeof(fl));
if(flags & DRV_FORCED) fl[0] = 'F';
return fl;
}
/*===========================================================================*
* dmap_style *
*===========================================================================*/
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static char * dmap_style(int dev_style)
{
switch(dev_style) {
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case STYLE_DEV: return "STYLE_DEV";
case STYLE_TTY: return "STYLE_TTY";
case STYLE_CTTY: return "STYLE_CTTY";
case STYLE_CLONE: return "STYLE_CLONE";
default: return "UNKNOWN";
}
}
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/*===========================================================================*
* dtab_dmp *
*===========================================================================*/
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void dtab_dmp()
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{
int i;
if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK) {
printf("Error obtaining table from VFS. Perhaps recompile IS?\n");
return;
}
printf("File System (FS) device <-> driver mappings\n");
printf(" Label Major Driver ept Flags Style \n");
printf("------------- ----- ---------- ----- -------------\n");
for (i=0; i<NR_DEVICES; i++) {
if (dmap[i].dmap_driver == NONE) continue;
printf("%13s %5d %10d %s %-13s\n",
dmap[i].dmap_label, i, dmap[i].dmap_driver,
dmap_flags(dmap[i].dmap_flags), dmap_style(dmap[i].dmap_style));
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}
}