86ed54ee94
. unmap device drivers from dmap when PM signals they are dead . new null-io function (no_dev_io) to fill in for io functions of unmapped drivers . driver (process number) of unmapped drivers is NONE instead of 0 (a valid process number) IS: . print mutable flag of dmap table too FS changes require sync() to be done 'manually' (currently by reboot/shutdown) at shutdown time; could be caught by SIGTERM in the future.
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* This file contains procedures to dump to FS' data structures.
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*
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* The entry points into this file are
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* dtab_dump: display device <-> driver mappings
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* fproc_dump: display FS process table
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*
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* Created:
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* Oct 01, 2004: by Jorrit N. Herder
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*/
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#include "is.h"
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#include "../fs/const.h"
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#include "../fs/fproc.h"
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#include <minix/dmap.h>
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PUBLIC struct fproc fproc[NR_PROCS];
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PUBLIC struct dmap dmap[NR_DEVICES];
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/*===========================================================================*
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* fproc_dmp *
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*===========================================================================*/
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PUBLIC void fproc_dmp()
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{
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struct fproc *fp;
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int i, n=0;
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static int prev_i;
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getsysinfo(FS_PROC_NR, SI_PROC_TAB, fproc);
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printf("File System (FS) process table dump\n");
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printf("-nr- -pid- -tty- -umask- --uid-- --gid-- -ldr- -sus-rev-proc- -cloexec-\n");
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for (i=prev_i; i<NR_PROCS; i++) {
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fp = &fproc[i];
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if (fp->fp_pid <= 0) continue;
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if (++n > 22) break;
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printf("%3d %4d %2d/%d 0x%05x %2d (%d) %2d (%d) %3d %3d %3d %4d 0x%05x\n",
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i, fp->fp_pid,
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((fp->fp_tty>>MAJOR)&BYTE), ((fp->fp_tty>>MINOR)&BYTE),
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fp->fp_umask,
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fp->fp_realuid, fp->fp_effuid, fp->fp_realgid, fp->fp_effgid,
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fp->fp_sesldr,
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fp->fp_suspended, fp->fp_revived, fp->fp_task,
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fp->fp_cloexec
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);
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}
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if (i >= NR_PROCS) i = 0;
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else printf("--more--\r");
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prev_i = i;
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}
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/*===========================================================================*
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* dmap_flags *
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*===========================================================================*/
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PRIVATE char * dmap_flags(int flags)
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{
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static char fl[10];
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fl[0] = '-';
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if(flags & DMAP_MUTABLE) fl[0] = 'M';
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fl[1] = '\0';
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return fl;
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}
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/*===========================================================================*
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* dtab_dmp *
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*===========================================================================*/
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PUBLIC void dtab_dmp()
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{
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int i;
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getsysinfo(FS_PROC_NR, SI_DMAP_TAB, dmap);
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printf("File System (FS) device <-> driver mappings\n");
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printf("Major Proc Flags\n");
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printf("----- ---- -----\n");
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for (i=0; i<NR_DEVICES; i++) {
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if (dmap[i].dmap_driver == 0) continue;
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printf("%5d %4d %s\n",
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i, dmap[i].dmap_driver, dmap_flags(dmap[i].dmap_flags));
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}
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}
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