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lvm2/lib/display/display.c
Mike Snitzer 3d425215a8 Continue to make --units and --size consistent (in code and man pages): 
Update units_to_bytes() to support (S)ectors: 500 bytes.
- 500 byte (S)ectors is of questionable value but it adds to consistency
  if a user happens to use --units S.  This seems better than an error.

Updated test/t-covercmd.sh to test --units [hS]

Document the units that can be displayed via --units uniformly.
- (p)etabytes and (e)xabytes were missing in pvs, vgs and lvs man pages.

Made lvreduce man page "... in units of megabytes." consistent (with the
lvextend and lvresize man pages).
2009-07-07 19:28:57 +00:00

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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lib.h"
#include "metadata.h"
#include "display.h"
#include "activate.h"
#include "toolcontext.h"
#include "segtype.h"
#define SIZE_BUF 128
typedef enum { SIZE_LONG = 0, SIZE_SHORT = 1, SIZE_UNIT = 2 } size_len_t;
static const struct {
alloc_policy_t alloc;
const char str[12]; /* must be changed when size extends 11 chars */
} _policies[] = {
{
ALLOC_CONTIGUOUS, "contiguous"}, {
ALLOC_CLING, "cling"}, {
ALLOC_NORMAL, "normal"}, {
ALLOC_ANYWHERE, "anywhere"}, {
ALLOC_INHERIT, "inherit"}
};
static const int _num_policies = sizeof(_policies) / sizeof(*_policies);
uint64_t units_to_bytes(const char *units, char *unit_type)
{
char *ptr = NULL;
uint64_t v;
if (isdigit(*units)) {
v = (uint64_t) strtod(units, &ptr);
if (ptr == units)
return 0;
units = ptr;
} else
v = 1;
if (v == 1)
*unit_type = *units;
else
*unit_type = 'U';
switch (*units) {
case 'h':
case 'H':
v = UINT64_C(1);
*unit_type = *units;
break;
case 'b':
case 'B':
v *= UINT64_C(1);
break;
#define KILO UINT64_C(1024)
case 's':
v *= (KILO/2);
break;
case 'k':
v *= KILO;
break;
case 'm':
v *= KILO * KILO;
break;
case 'g':
v *= KILO * KILO * KILO;
break;
case 't':
v *= KILO * KILO * KILO * KILO;
break;
case 'p':
v *= KILO * KILO * KILO * KILO * KILO;
break;
case 'e':
v *= KILO * KILO * KILO * KILO * KILO * KILO;
break;
#undef KILO
#define KILO UINT64_C(1000)
case 'S':
v *= (KILO/2);
break;
case 'K':
v *= KILO;
break;
case 'M':
v *= KILO * KILO;
break;
case 'G':
v *= KILO * KILO * KILO;
break;
case 'T':
v *= KILO * KILO * KILO * KILO;
break;
case 'P':
v *= KILO * KILO * KILO * KILO * KILO;
break;
case 'E':
v *= KILO * KILO * KILO * KILO * KILO * KILO;
break;
#undef KILO
default:
return 0;
}
if (*(units + 1))
return 0;
return v;
}
const char *get_alloc_string(alloc_policy_t alloc)
{
int i;
for (i = 0; i < _num_policies; i++)
if (_policies[i].alloc == alloc)
return _policies[i].str;
return NULL;
}
alloc_policy_t get_alloc_from_string(const char *str)
{
int i;
for (i = 0; i < _num_policies; i++)
if (!strcmp(_policies[i].str, str))
return _policies[i].alloc;
/* Special case for old metadata */
if(!strcmp("next free", str))
return ALLOC_NORMAL;
log_error("Unrecognised allocation policy %s", str);
return ALLOC_INVALID;
}
/* Size supplied in sectors */
static const char *_display_size(const struct cmd_context *cmd,
uint64_t size, size_len_t sl)
{
int s;
int suffix = 1, precision;
uint64_t byte = UINT64_C(0);
uint64_t units = UINT64_C(1024);
char *size_buf = NULL;
const char * const size_str[][3] = {
{" Exabyte", " EB", "E"},
{" Petabyte", " PB", "P"},
{" Terabyte", " TB", "T"},
{" Gigabyte", " GB", "G"},
{" Megabyte", " MB", "M"},
{" Kilobyte", " KB", "K"},
{"", "", ""},
{" Byte ", " B ", "B"},
{" Units ", " Un", "U"},
{" Sectors ", " Se", "S"},
{" ", " ", " "},
};
if (!(size_buf = dm_pool_alloc(cmd->mem, SIZE_BUF))) {
log_error("no memory for size display buffer");
return "";
}
suffix = cmd->current_settings.suffix;
for (s = 0; s < 10; s++)
if (toupper((int) cmd->current_settings.unit_type) ==
*size_str[s][2])
break;
if (size == UINT64_C(0)) {
sprintf(size_buf, "0%s", suffix ? size_str[s][sl] : "");
return size_buf;
}
size *= UINT64_C(512);
if (s < 10)
byte = cmd->current_settings.unit_factor;
else {
suffix = 1;
if (cmd->current_settings.unit_type == 'H')
units = UINT64_C(1000);
else
units = UINT64_C(1024);
byte = units * units * units * units * units * units;
s = 0;
while (size_str[s] && size < byte)
s++, byte /= units;
}
/* FIXME Make precision configurable */
switch(toupper((int) cmd->current_settings.unit_type)) {
case 'B':
case 'S':
precision = 0;
break;
default:
precision = 2;
}
snprintf(size_buf, SIZE_BUF - 1, "%.*f%s", precision,
(double) size / byte, suffix ? size_str[s][sl] : "");
return size_buf;
}
const char *display_size_long(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, SIZE_LONG);
}
const char *display_size_units(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, SIZE_UNIT);
}
const char *display_size(const struct cmd_context *cmd, uint64_t size)
{
return _display_size(cmd, size, SIZE_SHORT);
}
void pvdisplay_colons(const struct physical_volume *pv)
{
char uuid[64] __attribute((aligned(8)));
if (!pv)
return;
if (!id_write_format(&pv->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("%s:%s:%" PRIu64 ":-1:%u:%u:-1:%" PRIu32 ":%u:%u:%u:%s",
pv_dev_name(pv), pv->vg_name, pv->size,
/* FIXME pv->pv_number, Derive or remove? */
pv->status, /* FIXME Support old or new format here? */
pv->status & ALLOCATABLE_PV, /* FIXME remove? */
/* FIXME pv->lv_cur, Remove? */
pv->pe_size / 2,
pv->pe_count,
pv->pe_count - pv->pe_alloc_count,
pv->pe_alloc_count, *uuid ? uuid : "none");
return;
}
void pvdisplay_segments(const struct physical_volume *pv)
{
const struct pv_segment *pvseg;
if (pv->pe_size)
log_print("--- Physical Segments ---");
dm_list_iterate_items(pvseg, &pv->segments) {
log_print("Physical extent %u to %u:",
pvseg->pe, pvseg->pe + pvseg->len - 1);
if (pvseg_is_allocated(pvseg)) {
log_print(" Logical volume\t%s%s/%s",
pvseg->lvseg->lv->vg->cmd->dev_dir,
pvseg->lvseg->lv->vg->name,
pvseg->lvseg->lv->name);
log_print(" Logical extents\t%d to %d",
pvseg->lvseg->le, pvseg->lvseg->le +
pvseg->lvseg->len - 1);
} else
log_print(" FREE");
}
log_print(" ");
return;
}
/* FIXME Include label fields */
void pvdisplay_full(const struct cmd_context *cmd,
const struct physical_volume *pv,
void *handle __attribute((unused)))
{
char uuid[64] __attribute((aligned(8)));
const char *size;
uint32_t pe_free;
uint64_t data_size, pvsize, unusable;
if (!pv)
return;
if (!id_write_format(&pv->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("--- %sPhysical volume ---", pv->pe_size ? "" : "NEW ");
log_print("PV Name %s", pv_dev_name(pv));
log_print("VG Name %s%s",
is_orphan(pv) ? "" : pv->vg_name,
pv->status & EXPORTED_VG ? " (exported)" : "");
data_size = (uint64_t) pv->pe_count * pv->pe_size;
if (pv->size > data_size + pv->pe_start) {
pvsize = pv->size;
unusable = pvsize - data_size;
} else {
pvsize = data_size + pv->pe_start;
unusable = pvsize - pv->size;
}
size = display_size(cmd, pvsize);
if (data_size)
log_print("PV Size %s / not usable %s", /* [LVM: %s]", */
size, display_size(cmd, unusable));
else
log_print("PV Size %s", size);
/* PV number not part of LVM2 design
log_print("PV# %u", pv->pv_number);
*/
pe_free = pv->pe_count - pv->pe_alloc_count;
if (pv->pe_count && (pv->status & ALLOCATABLE_PV))
log_print("Allocatable yes %s",
(!pe_free && pv->pe_count) ? "(but full)" : "");
else
log_print("Allocatable NO");
/* LV count is no longer available when displaying PV
log_print("Cur LV %u", vg->lv_count);
*/
log_print("PE Size (KByte) %" PRIu32, pv->pe_size / 2);
log_print("Total PE %u", pv->pe_count);
log_print("Free PE %" PRIu32, pe_free);
log_print("Allocated PE %u", pv->pe_alloc_count);
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print(" ");
return;
}
int pvdisplay_short(const struct cmd_context *cmd __attribute((unused)),
const struct volume_group *vg __attribute((unused)),
const struct physical_volume *pv,
void *handle __attribute((unused)))
{
char uuid[64] __attribute((aligned(8)));
if (!pv)
return 0;
if (!id_write_format(&pv->id, uuid, sizeof(uuid)))
return_0;
log_print("PV Name %s ", pv_dev_name(pv));
/* FIXME pv->pv_number); */
log_print("PV UUID %s", *uuid ? uuid : "none");
log_print("PV Status %sallocatable",
(pv->status & ALLOCATABLE_PV) ? "" : "NOT ");
log_print("Total PE / Free PE %u / %u",
pv->pe_count, pv->pe_count - pv->pe_alloc_count);
log_print(" ");
return 0;
}
void lvdisplay_colons(const struct logical_volume *lv)
{
int inkernel;
struct lvinfo info;
inkernel = lv_info(lv->vg->cmd, lv, &info, 1, 0) && info.exists;
log_print("%s%s/%s:%s:%d:%d:-1:%d:%" PRIu64 ":%d:-1:%d:%d:%d:%d",
lv->vg->cmd->dev_dir,
lv->vg->name,
lv->name,
lv->vg->name,
(lv->status & (LVM_READ | LVM_WRITE)) >> 8, inkernel ? 1 : 0,
/* FIXME lv->lv_number, */
inkernel ? info.open_count : 0, lv->size, lv->le_count,
/* FIXME Add num allocated to struct! lv->lv_allocated_le, */
(lv->alloc == ALLOC_CONTIGUOUS ? 2 : 0), lv->read_ahead,
inkernel ? info.major : -1, inkernel ? info.minor : -1);
return;
}
int lvdisplay_full(struct cmd_context *cmd,
const struct logical_volume *lv,
void *handle __attribute((unused)))
{
struct lvinfo info;
int inkernel, snap_active = 0;
char uuid[64] __attribute((aligned(8)));
struct lv_segment *snap_seg = NULL;
float snap_percent; /* fused, fsize; */
if (!id_write_format(&lv->lvid.id[1], uuid, sizeof(uuid)))
return_0;
inkernel = lv_info(cmd, lv, &info, 1, 1) && info.exists;
log_print("--- Logical volume ---");
log_print("LV Name %s%s/%s", lv->vg->cmd->dev_dir,
lv->vg->name, lv->name);
log_print("VG Name %s", lv->vg->name);
log_print("LV UUID %s", uuid);
log_print("LV Write Access %s",
(lv->status & LVM_WRITE) ? "read/write" : "read only");
if (lv_is_origin(lv)) {
log_print("LV snapshot status source of");
dm_list_iterate_items_gen(snap_seg, &lv->snapshot_segs,
origin_list) {
if (inkernel &&
(snap_active = lv_snapshot_percent(snap_seg->cow,
&snap_percent)))
if (snap_percent < 0 || snap_percent >= 100)
snap_active = 0;
log_print(" %s%s/%s [%s]",
lv->vg->cmd->dev_dir, lv->vg->name,
snap_seg->cow->name,
(snap_active > 0) ? "active" : "INACTIVE");
}
snap_seg = NULL;
} else if ((snap_seg = find_cow(lv))) {
if (inkernel &&
(snap_active = lv_snapshot_percent(snap_seg->cow,
&snap_percent)))
if (snap_percent < 0 || snap_percent >= 100)
snap_active = 0;
log_print("LV snapshot status %s destination for %s%s/%s",
(snap_active > 0) ? "active" : "INACTIVE",
lv->vg->cmd->dev_dir, lv->vg->name,
snap_seg->origin->name);
}
if (inkernel && info.suspended)
log_print("LV Status suspended");
else
log_print("LV Status %savailable",
inkernel ? "" : "NOT ");
/********* FIXME lv_number
log_print("LV # %u", lv->lv_number + 1);
************/
if (inkernel)
log_print("# open %u", info.open_count);
log_print("LV Size %s",
display_size(cmd,
snap_seg ? snap_seg->origin->size : lv->size));
log_print("Current LE %u",
snap_seg ? snap_seg->origin->le_count : lv->le_count);
if (snap_seg) {
log_print("COW-table size %s",
display_size(cmd, (uint64_t) lv->size));
log_print("COW-table LE %u", lv->le_count);
if (snap_active)
log_print("Allocated to snapshot %.2f%% ", snap_percent);
log_print("Snapshot chunk size %s",
display_size(cmd, (uint64_t) snap_seg->chunk_size));
}
log_print("Segments %u", dm_list_size(&lv->segments));
/********* FIXME Stripes & stripesize for each segment
log_print("Stripe size (KByte) %u", lv->stripesize / 2);
***********/
log_print("Allocation %s", get_alloc_string(lv->alloc));
if (lv->read_ahead == DM_READ_AHEAD_AUTO)
log_print("Read ahead sectors auto");
else if (lv->read_ahead == DM_READ_AHEAD_NONE)
log_print("Read ahead sectors 0");
else
log_print("Read ahead sectors %u", lv->read_ahead);
if (inkernel && lv->read_ahead != info.read_ahead)
log_print("- currently set to %u", info.read_ahead);
if (lv->status & FIXED_MINOR) {
if (lv->major >= 0)
log_print("Persistent major %d", lv->major);
log_print("Persistent minor %d", lv->minor);
}
if (inkernel)
log_print("Block device %d:%d", info.major,
info.minor);
log_print(" ");
return 0;
}
void display_stripe(const struct lv_segment *seg, uint32_t s, const char *pre)
{
switch (seg_type(seg, s)) {
case AREA_PV:
/* FIXME Re-check the conditions for 'Missing' */
log_print("%sPhysical volume\t%s", pre,
seg_pv(seg, s) ?
pv_dev_name(seg_pv(seg, s)) :
"Missing");
if (seg_pv(seg, s))
log_print("%sPhysical extents\t%d to %d", pre,
seg_pe(seg, s),
seg_pe(seg, s) + seg->area_len - 1);
break;
case AREA_LV:
log_print("%sLogical volume\t%s", pre,
seg_lv(seg, s) ?
seg_lv(seg, s)->name : "Missing");
if (seg_lv(seg, s))
log_print("%sLogical extents\t%d to %d", pre,
seg_le(seg, s),
seg_le(seg, s) + seg->area_len - 1);
break;
case AREA_UNASSIGNED:
log_print("%sUnassigned area", pre);
}
}
int lvdisplay_segments(const struct logical_volume *lv)
{
const struct lv_segment *seg;
log_print("--- Segments ---");
dm_list_iterate_items(seg, &lv->segments) {
log_print("Logical extent %u to %u:",
seg->le, seg->le + seg->len - 1);
log_print(" Type\t\t%s", seg->segtype->ops->name(seg));
if (seg->segtype->ops->display)
seg->segtype->ops->display(seg);
}
log_print(" ");
return 1;
}
void vgdisplay_extents(const struct volume_group *vg __attribute((unused)))
{
return;
}
void vgdisplay_full(const struct volume_group *vg)
{
uint32_t access_str;
uint32_t active_pvs;
char uuid[64] __attribute((aligned(8)));
active_pvs = vg->pv_count - vg_missing_pv_count(vg);
log_print("--- Volume group ---");
log_print("VG Name %s", vg->name);
log_print("System ID %s", vg->system_id);
log_print("Format %s", vg->fid->fmt->name);
if (vg->fid->fmt->features & FMT_MDAS) {
log_print("Metadata Areas %d",
dm_list_size(&vg->fid->metadata_areas));
log_print("Metadata Sequence No %d", vg->seqno);
}
access_str = vg->status & (LVM_READ | LVM_WRITE);
log_print("VG Access %s%s%s%s",
access_str == (LVM_READ | LVM_WRITE) ? "read/write" : "",
access_str == LVM_READ ? "read" : "",
access_str == LVM_WRITE ? "write" : "",
access_str == 0 ? "error" : "");
log_print("VG Status %s%sresizable",
vg->status & EXPORTED_VG ? "exported/" : "",
vg->status & RESIZEABLE_VG ? "" : "NOT ");
/* vg number not part of LVM2 design
log_print ("VG # %u\n", vg->vg_number);
*/
if (vg_is_clustered(vg)) {
log_print("Clustered yes");
log_print("Shared %s",
vg->status & SHARED ? "yes" : "no");
}
log_print("MAX LV %u", vg->max_lv);
log_print("Cur LV %u", vg_visible_lvs(vg));
log_print("Open LV %u", lvs_in_vg_opened(vg));
/****** FIXME Max LV Size
log_print ( "MAX LV Size %s",
( s1 = display_size ( LVM_LV_SIZE_MAX(vg))));
free ( s1);
*********/
log_print("Max PV %u", vg->max_pv);
log_print("Cur PV %u", vg->pv_count);
log_print("Act PV %u", active_pvs);
log_print("VG Size %s",
display_size(vg->cmd,
(uint64_t) vg->extent_count * vg->extent_size));
log_print("PE Size %s",
display_size(vg->cmd, (uint64_t) vg->extent_size));
log_print("Total PE %u", vg->extent_count);
log_print("Alloc PE / Size %u / %s",
vg->extent_count - vg->free_count,
display_size(vg->cmd,
((uint64_t) vg->extent_count - vg->free_count) *
vg->extent_size));
log_print("Free PE / Size %u / %s", vg->free_count,
display_size(vg->cmd,
(uint64_t) vg->free_count * vg->extent_size));
if (!id_write_format(&vg->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("VG UUID %s", uuid);
log_print(" ");
return;
}
void vgdisplay_colons(const struct volume_group *vg)
{
uint32_t active_pvs;
const char *access_str;
char uuid[64] __attribute((aligned(8)));
active_pvs = vg->pv_count - vg_missing_pv_count(vg);
switch (vg->status & (LVM_READ | LVM_WRITE)) {
case LVM_READ | LVM_WRITE:
access_str = "r/w";
break;
case LVM_READ:
access_str = "r";
break;
case LVM_WRITE:
access_str = "w";
break;
default:
access_str = "";
}
if (!id_write_format(&vg->id, uuid, sizeof(uuid))) {
stack;
return;
}
log_print("%s:%s:%d:-1:%u:%u:%u:-1:%u:%u:%u:%" PRIu64 ":%" PRIu32
":%u:%u:%u:%s",
vg->name,
access_str,
vg->status,
/* internal volume group number; obsolete */
vg->max_lv,
vg_visible_lvs(vg),
lvs_in_vg_opened(vg),
/* FIXME: maximum logical volume size */
vg->max_pv,
vg->pv_count,
active_pvs,
(uint64_t) vg->extent_count * (vg->extent_size / 2),
vg->extent_size / 2,
vg->extent_count,
vg->extent_count - vg->free_count,
vg->free_count,
uuid[0] ? uuid : "none");
return;
}
void vgdisplay_short(const struct volume_group *vg)
{
log_print("\"%s\" %-9s [%-9s used / %s free]", vg->name,
/********* FIXME if "open" print "/used" else print "/idle"??? ******/
display_size(vg->cmd,
(uint64_t) vg->extent_count * vg->extent_size),
display_size(vg->cmd,
((uint64_t) vg->extent_count -
vg->free_count) * vg->extent_size),
display_size(vg->cmd,
(uint64_t) vg->free_count * vg->extent_size));
return;
}
void display_formats(const struct cmd_context *cmd)
{
const struct format_type *fmt;
dm_list_iterate_items(fmt, &cmd->formats) {
log_print("%s", fmt->name);
}
}
void display_segtypes(const struct cmd_context *cmd)
{
const struct segment_type *segtype;
dm_list_iterate_items(segtype, &cmd->segtypes) {
log_print("%s", segtype->name);
}
}
char yes_no_prompt(const char *prompt, ...)
{
int c = 0, ret = 0;
va_list ap;
sigint_allow();
do {
if (c == '\n' || !c) {
va_start(ap, prompt);
vprintf(prompt, ap);
va_end(ap);
}
if ((c = getchar()) == EOF) {
ret = 'n';
break;
}
c = tolower(c);
if ((c == 'y') || (c == 'n'))
ret = c;
} while (!ret || c != '\n');
sigint_restore();
if (c != '\n')
printf("\n");
return ret;
}
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