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toollib: Implement process_each_label.

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This commit is contained in:
Petr Rockai 2013-07-29 18:51:27 +02:00
parent 9b91977f4e
commit 1ef2c3c4ee
2 changed files with 64 additions and 0 deletions
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58
tools/toollib.c
View File

@ -1801,3 +1801,61 @@ int change_tag(struct cmd_context *cmd, struct volume_group *vg,
return 1;
}
int process_each_label(struct cmd_context *cmd, int argc, char **argv, void *handle,
process_single_label_fn_t process_single_label)
{
struct label *label;
struct dev_iter *iter;
struct device *dev;
int ret_max = ECMD_PROCESSED;
int ret = 0;
int opt = 0;
if (argc) {
for (; opt < argc; opt++) {
if (!(dev = dev_cache_get(argv[opt], cmd->filter))) {
log_error("Failed to find device "
"\"%s\"", argv[opt]);
ret_max = ECMD_FAILED;
continue;
}
if (!label_read(dev, &label, 0))
continue;
ret = process_single_label(cmd, label, handle);
if (ret > ret_max)
ret_max = ret;
if (sigint_caught())
break;
}
return ret_max;
}
if (!(iter = dev_iter_create(cmd->filter, 1))) {
log_error("dev_iter creation failed");
return ECMD_FAILED;
}
while ((dev = dev_iter_get(iter)))
{
if (!label_read(dev, &label, 0))
continue;
ret = process_single_label(cmd, label, handle);
if (ret > ret_max)
ret_max = ret;
if (sigint_caught())
break;
}
dev_iter_destroy(iter);
return ret_max;
}

6
tools/toollib.h
View File

@ -38,6 +38,9 @@ typedef int (*process_single_pv_fn_t) (struct cmd_context *cmd,
struct volume_group *vg,
struct physical_volume *pv,
void *handle);
typedef int (*process_single_label_fn_t) (struct cmd_context *cmd,
struct label *label,
void *handle);
typedef int (*process_single_lv_fn_t) (struct cmd_context *cmd,
struct logical_volume *lv,
void *handle);
@ -58,6 +61,9 @@ int process_each_pv(struct cmd_context *cmd, int argc, char **argv,
int scan_label_only, void *handle,
process_single_pv_fn_t process_single_pv);
int process_each_label(struct cmd_context *cmd, int argc, char **argv,
void *handle, process_single_label_fn_t process_single_label);
int process_each_segment_in_pv(struct cmd_context *cmd,
struct volume_group *vg,
struct physical_volume *pv,