shaba/lvm2
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lvm2/lib/display/display.c
Joe Thornber c7f0b573ac o use dev_name(dev) to get the name of a device, this operation is cheap 
since it just get's the first alias.
2001-10-25 14:04:18 +00:00

346 lines
8.3 KiB
C
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/*
* Copyright (C) 2001 Sistina Software
*
* This LVM library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This LVM library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this LVM library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA
*
*/
#include <sys/types.h>
#include <string.h>
#include "metadata.h"
#include "dbg_malloc.h"
#include "log.h"
#include "display.h"
#define SIZE_BUF 128
char *display_size(unsigned long long size, size_len_t sl)
{
int s;
ulong byte = 1024 * 1024 * 1024;
char *size_buf = NULL;
char *size_str[][2] = {
{"Terabyte", "TB"},
{"Gigabyte", "GB"},
{"Megabyte", "MB"},
{"Kilobyte", "KB"},
{"", ""}
};
if (!(size_buf = dbg_malloc(SIZE_BUF))) {
log_error("no memory for size display buffer");
return NULL;
}
if (size == 0LL)
sprintf(size_buf, "0");
else {
s = 0;
while (size_str[s] && size < byte)
s++, byte /= 1024;
snprintf(size_buf, SIZE_BUF - 1,
"%.2f %s", (float) size / byte, size_str[s][sl]);
}
/* Caller to deallocate */
return size_buf;
}
/*
* FIXME: this function is badly named, it doesn't display the data it
* creates a new uuid string with -'s in it. It would be better if
* the destination was passed in as well. EJT
*/
char *display_uuid(char *uuidstr) {
int i, j;
char *uuid;
if ((!uuidstr) || !(uuid = dbg_malloc(NAME_LEN))) {
log_error("no memory for uuid display buffer");
return NULL;
}
memset(uuid, 0, NAME_LEN);
i = 6;
memcpy(uuid, uuidstr, i);
uuidstr += i;
for (j = 0; j < 6; j++) {
uuid[i++] = '-';
memcpy(&uuid[i], uuidstr, 4);
uuidstr += 4;
i += 4;
}
memcpy(&uuid[i], uuidstr, 2);
/* Caller must free */
return uuid;
}
void pvdisplay_colons(struct physical_volume *pv)
{
char *uuid;
if (!pv)
return;
uuid = display_uuid(pv->id.uuid);
log_print("%s:%s:%llu:-1:%u:%u:-1:%llu:%u:%u:%u:%s",
dev_name(pv->dev),
pv->vg_name,
pv->size,
/* FIXME pv->pv_number, Derive or remove? */
pv->status, /* FIXME Support old or new format here? */
pv->status & ALLOCATED_PV, /* FIXME Remove? */
/* FIXME pv->lv_cur, Remove? */
pv->pe_size / 2,
pv->pe_count,
pv->pe_count - pv->pe_allocated,
pv->pe_allocated,
*uuid ? uuid : "none");
dbg_free(uuid);
return;
}
void pvdisplay_full(struct physical_volume * pv)
{
char *uuid;
char *size, *size1; /*, *size2; */
uint64_t pe_free;
if (!pv)
return;
uuid = display_uuid(pv->id.uuid);
log_print("--- %sPhysical volume ---", pv->pe_size ? "" : "NEW ");
log_print("PV Name %s", dev_name(pv->dev));
log_print("VG Name %s", pv->vg_name);
size = display_size(pv->size / 2, SIZE_SHORT);
if (pv->pe_size && pv->pe_count) {
size1 = display_size((pv->size - pv->pe_count * pv->pe_size)
/ 2, SIZE_SHORT);
/******** FIXME display LVM on-disk data size
size2 = display_size(pv->size / 2, SIZE_SHORT);
********/
log_print("PV Size %s"
" / not usable %s", /* [LVM: %s]", */
size, size1); /* , size2); */
dbg_free(size1);
/* dbg_free(size2); */
} else
log_print("PV Size %s", size);
dbg_free(size);
/*********FIXME Anything use this?
log_print("PV# %u", pv->pv_number);
**********/
log_print("PV Status %savailable",
(pv->status & ACTIVE) ? "" : "NOT ");
pe_free = pv->pe_count - pv->pe_allocated;
if (pv->pe_count && (pv->status & ALLOCATED_PV))
log_print("Allocatable yes %s",
(!pe_free && pv->pe_count) ? "(but full)" : "");
else
log_print("Allocatable NO");
/*********FIXME
log_print("Cur LV %u", pv->lv_cur);
*********/
log_print("PE Size (KByte) %llu", pv->pe_size / 2);
log_print("Total PE %u", pv->pe_count);
log_print("Free PE %llu", pe_free);
log_print("Allocated PE %u", pv->pe_allocated);
#ifdef LVM_FUTURE
printf("Stale PE %u", pv->pe_stale);
#endif
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print(" ");
dbg_free(uuid);
return;
}
void pv_display_short(struct physical_volume *pv)
{
if (!pv)
return;
log_print("PV Name %s ", dev_name(pv->dev));
/* FIXME pv->pv_number); */
log_print("PV Status %savailable / %sallocatable",
(pv->status & ACTIVE) ? "" : "NOT ",
(pv->status & ALLOCATED_PV) ? "" : "NOT ");
log_print("Total PE / Free PE %u / %u",
pv->pe_count, pv->pe_count - pv->pe_allocated);
return;
}
#if 0
/******** FIXME
void pv_display_pe(pv_t * pv, pe_disk_t * pe)
{
int p;
for (p = 0; p < pv->pe_total; p++)
printf("pe#: %4d vg: %s lv: %d le: %d\n",
p, pv->vg_name, pe[p].lv_num, pe[p].le_num);
return;
}
*******/
void pv_display_pe_text(pv_t * pv, pe_disk_t * pe, lv_disk_t * lvs)
{
int flag = 0;
int lv_num_last = 0;
int p = 0;
int pe_free = 0;
int *pe_this_count = NULL;
int pt = 0;
int pt_count = 0;
lv_disk_t *lv;
char *lv_name_this = NULL;
char *lv_names = NULL;
char *lv_names_sav = NULL;
pe_disk_t *pe_this = NULL;
if ((pe_this = dbg_malloc(pv->pe_total * sizeof (pe_disk_t))) == NULL) {
log_error("pe_this allocation failed");
goto pv_display_pe_text_out;
}
if ((pe_this_count = dbg_malloc(pv->pe_total * sizeof (int))) == NULL) {
log_error("pe_this_count allocation failed");
goto pv_display_pe_text_out;
}
memset(pe_this, 0, pv->pe_total * sizeof (pe_disk_t));
memset(pe_this_count, 0, pv->pe_total * sizeof (int));
/* get PE and LE summaries */
pt_count = 0;
for (p = pt_count; p < pv->pe_total; p++) {
if (pe[p].lv_num != 0) {
flag = 0;
for (pt = 0; pt < pt_count; pt++) {
if (pe_this[pt].lv_num == pe[p].lv_num) {
flag = 1;
break;
}
}
if (flag == 0) {
pe_this[pt_count].lv_num = pe[p].lv_num;
for (pt = 0; pt < pv->pe_total; pt++)
if (pe_this[pt_count].lv_num ==
pe[pt].lv_num)
pe_this_count[pt_count]++;
pt_count++;
}
}
}
lv = lvs;
printf(" --- Distribution of physical volume ---\n"
" LV Name LE of LV PE for LV\n");
for (pt = 0; pt < pt_count; pt++) {
printf(" %-25s ", lv->lv_name);
if (strlen(lv->lv_name) > 25)
printf("\n ");
printf("%-8u %-8d\n",
lv->lv_allocated_le,
pe_this_count[pt]);
if (pe_this[pt].lv_num > lv_num_last) {
lv_num_last = pe_this[pt].lv_num;
lv_names_sav = lv_names;
if ((lv_names = dbg_realloc(lv_names,
lv_num_last * NAME_LEN)) ==
NULL) {
log_error("realloc error in %s [line %d]",
__FILE__, __LINE__);
goto pv_display_pe_text_out;
} else
lv_names_sav = NULL;
}
strcpy(&lv_names[(pe_this[pt].lv_num - 1) * NAME_LEN],
lv->lv_name);
lv++;
}
printf("\n --- Physical extents ---\n"
" PE LV LE Disk sector\n");
pe_free = -1;
for (p = 0; p < pv->pe_total; p++) {
if (pe[p].lv_num != 0) {
if (pe_free > -1) {
pv_display_pe_free(pe_free, p);
pe_free = -1;
}
lv_name_this = &lv_names[(pe[p].lv_num - 1) * NAME_LEN];
printf(" %05d %-25s ", p, lv_name_this);
if (strlen(lv_name_this) > 25)
printf("\n ");
printf("%05d %ld\n", pe[p].le_num,
get_pe_offset(p, pv));
} else if (pe_free == -1)
pe_free = p;
}
if (pe_free > 0)
pv_display_pe_free(pe_free, p);
pv_display_pe_text_out:
if (lv_names != NULL)
dbg_free(lv_names);
else if (lv_names_sav != NULL)
dbg_free(lv_names_sav);
if (pe_this != NULL)
dbg_free(pe_this);
if (pe_this_count != NULL)
dbg_free(pe_this_count);
return;
}
void pv_display_pe_free(int pe_free, int p)
{
printf(" %05d free\n", pe_free);
if (p - pe_free > 1)
printf(" .....\n %05d free\n", p - 1);
return;
}
#endif
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