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Code Releases Activity

Move lv_remove_single() into library (lv_manip.c, metadata-exported.h).

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Move yes_no_prompt() into library (display.c, display.h).
Fixup includes as a result of movement of prior two functions.
Fixup force_t enum to be more descriptive.
This commit is contained in:
Dave Wysochanski 2007-08-20 17:04:53 +00:00
parent 9eb05d9761
commit cc78b9800d
7 changed files with 153 additions and 148 deletions
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31
lib/display/display.c
View File

@ -726,3 +726,34 @@ void display_segtypes(const struct cmd_context *cmd)
}
}
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;
}

3
lib/display/display.h
View File

@ -17,6 +17,7 @@
#define _LVM_DISPLAY_H
#include "metadata-exported.h"
#include "locking.h"
#include <stdint.h>
@ -58,4 +59,6 @@ void display_segtypes(const struct cmd_context *cmd);
const char *get_alloc_string(alloc_policy_t alloc);
alloc_policy_t get_alloc_from_string(const char *str);
char yes_no_prompt(const char *prompt, ...);
#endif

112
lib/metadata/lv_manip.c
View File

@ -24,6 +24,7 @@
#include "display.h"
#include "segtype.h"
#include "archiver.h"
#include "activate.h"
struct lv_names {
const char *old;
@ -1804,3 +1805,114 @@ struct list *build_parallel_areas_from_lv(struct cmd_context *cmd,
return parallel_areas;
}
int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
force_t force)
{
struct volume_group *vg;
struct lvinfo info;
struct logical_volume *origin = NULL;
vg = lv->vg;
if (!vg_check_status(vg, LVM_WRITE))
return 0;
if (lv_is_origin(lv)) {
log_error("Can't remove logical volume \"%s\" under snapshot",
lv->name);
return 0;
}
if (lv->status & MIRROR_IMAGE) {
log_error("Can't remove logical volume %s used by a mirror",
lv->name);
return 0;
}
if (lv->status & MIRROR_LOG) {
log_error("Can't remove logical volume %s used as mirror log",
lv->name);
return 0;
}
if (lv->status & LOCKED) {
log_error("Can't remove locked LV %s", lv->name);
return 0;
}
/* FIXME Ensure not referred to by another existing LVs */
if (lv_info(cmd, lv, &info, 1)) {
if (info.open_count) {
log_error("Can't remove open logical volume \"%s\"",
lv->name);
return 0;
}
if (info.exists && (force == DONT_FORCE)) {
if (yes_no_prompt("Do you really want to remove active "
"logical volume \"%s\"? [y/n]: ",
lv->name) == 'n') {
log_print("Logical volume \"%s\" not removed",
lv->name);
return 0;
}
}
}
if (!archive(vg))
return 0;
/* If the VG is clustered then make sure no-one else is using the LV
we are about to remove */
if (vg_status(vg) & CLUSTERED) {
if (!activate_lv_excl(cmd, lv)) {
log_error("Can't get exclusive access to volume \"%s\"",
lv->name);
return 0;
}
}
/* FIXME Snapshot commit out of sequence if it fails after here? */
if (!deactivate_lv(cmd, lv)) {
log_error("Unable to deactivate logical volume \"%s\"",
lv->name);
return 0;
}
if (lv_is_cow(lv)) {
origin = origin_from_cow(lv);
log_verbose("Removing snapshot %s", lv->name);
if (!vg_remove_snapshot(lv)) {
stack;
return 0;
}
}
log_verbose("Releasing logical volume \"%s\"", lv->name);
if (!lv_remove(lv)) {
log_error("Error releasing logical volume \"%s\"", lv->name);
return 0;
}
/* store it on disks */
if (!vg_write(vg))
return 0;
backup(vg);
if (!vg_commit(vg))
return 0;
/* If no snapshots left, reload without -real. */
if (origin && !lv_is_origin(origin)) {
if (!suspend_lv(cmd, origin))
log_error("Failed to refresh %s without snapshot.", origin->name);
else if (!resume_lv(cmd, origin))
log_error("Failed to resume %s.", origin->name);
}
log_print("Logical volume \"%s\" successfully removed", lv->name);
return 1;
}

7
lib/metadata/metadata-exported.h
View File

@ -108,8 +108,8 @@ typedef enum {
*/
typedef enum {
DONT_FORCE = 0,
FORCE = 1,
FORCE_2 = 2
FORCE_NO_CONFIRM = 1, /* skip yes/no confirmation of operation */
FORCE_OVERRIDE = 2 /* skip confirmation and bypass a second condition */
} force_t;
struct cmd_context;
@ -365,6 +365,9 @@ int lv_extend(struct logical_volume *lv,
/* lv must be part of lv->vg->lvs */
int lv_remove(struct logical_volume *lv);
int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
force_t force);
int lv_rename(struct cmd_context *cmd, struct logical_volume *lv,
const char *new_name);

31
tools/lvmcmdline.c
View File

@ -368,37 +368,6 @@ int segtype_arg(struct cmd_context *cmd, struct arg *a)
return 1;
}
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;
}
static void __alloc(int size)
{
if (!(_cmdline.commands = dm_realloc(_cmdline.commands, sizeof(*_cmdline.commands) * size))) {

116
tools/lvremove.c
View File

@ -15,125 +15,13 @@
#include "tools.h"
/* TODO: Next checkin, move to lvm library (lv_manip.c, metadata-exported.h) */
static int lv_remove_single(struct cmd_context *cmd, struct logical_volume *lv,
force_t force)
{
struct volume_group *vg;
struct lvinfo info;
struct logical_volume *origin = NULL;
vg = lv->vg;
if (!vg_check_status(vg, LVM_WRITE))
return 0;
if (lv_is_origin(lv)) {
log_error("Can't remove logical volume \"%s\" under snapshot",
lv->name);
return 0;
}
if (lv->status & MIRROR_IMAGE) {
log_error("Can't remove logical volume %s used by a mirror",
lv->name);
return 0;
}
if (lv->status & MIRROR_LOG) {
log_error("Can't remove logical volume %s used as mirror log",
lv->name);
return 0;
}
if (lv->status & LOCKED) {
log_error("Can't remove locked LV %s", lv->name);
return 0;
}
/* FIXME Ensure not referred to by another existing LVs */
if (lv_info(cmd, lv, &info, 1)) {
if (info.open_count) {
log_error("Can't remove open logical volume \"%s\"",
lv->name);
return 0;
}
if (info.exists && (force == DONT_FORCE)) {
if (yes_no_prompt("Do you really want to remove active "
"logical volume \"%s\"? [y/n]: ",
lv->name) == 'n') {
log_print("Logical volume \"%s\" not removed",
lv->name);
return 0;
}
}
}
if (!archive(vg))
return 0;
/* If the VG is clustered then make sure no-one else is using the LV
we are about to remove */
if (vg_status(vg) & CLUSTERED) {
if (!activate_lv_excl(cmd, lv)) {
log_error("Can't get exclusive access to volume \"%s\"",
lv->name);
return 0;
}
}
/* FIXME Snapshot commit out of sequence if it fails after here? */
if (!deactivate_lv(cmd, lv)) {
log_error("Unable to deactivate logical volume \"%s\"",
lv->name);
return 0;
}
if (lv_is_cow(lv)) {
origin = origin_from_cow(lv);
log_verbose("Removing snapshot %s", lv->name);
if (!vg_remove_snapshot(lv)) {
stack;
return 0;
}
}
log_verbose("Releasing logical volume \"%s\"", lv->name);
if (!lv_remove(lv)) {
log_error("Error releasing logical volume \"%s\"", lv->name);
return 0;
}
/* store it on disks */
if (!vg_write(vg))
return 0;
backup(vg);
if (!vg_commit(vg))
return 0;
/* If no snapshots left, reload without -real. */
if (origin && !lv_is_origin(origin)) {
if (!suspend_lv(cmd, origin))
log_error("Failed to refresh %s without snapshot.", origin->name);
else if (!resume_lv(cmd, origin))
log_error("Failed to resume %s.", origin->name);
}
log_print("Logical volume \"%s\" successfully removed", lv->name);
return 1;
}
static int lvremove_single(struct cmd_context *cmd, struct logical_volume *lv,
void *handle __attribute((unused)))
{
if (!lv_remove_single(cmd, lv, arg_count(cmd, force_ARG)))
return ECMD_FAILED;
else
return ECMD_PROCESSED;
return ECMD_PROCESSED;
}
int lvremove(struct cmd_context *cmd, int argc, char **argv)

1
tools/tools.h
View File

@ -144,7 +144,6 @@ int units_arg(struct cmd_context *cmd, struct arg *a);
int segtype_arg(struct cmd_context *cmd, struct arg *a);
int alloc_arg(struct cmd_context *cmd, struct arg *a);
char yes_no_prompt(const char *prompt, ...);
/* we use the enums to access the switches */
unsigned int arg_count(const struct cmd_context *cmd, int a);