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Add macro definitions to report infrastructure for character array length.

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Rather than hard code the size of the field, use a #define, so we can re-use.
The #define will be needed in a future patch when we extend the reporting
infrastructure to have 'get' and 'set' functions for each field, allowing
lvm2app functions which query any report field.  In order to provide a
generic lookup based on the field id, we will define a type containing this
field id, and thus, we will need to re-use the length of this string as
it's defined inside libdevmapper.h.
This commit is contained in:
Dave Wysochanski 2010-08-20 12:44:30 +00:00
parent 7bdc15c8bb
commit d6fbd0db32
1 changed files with 7 additions and 2 deletions
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9
libdm/libdevmapper.h
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@ -1048,14 +1048,19 @@ struct dm_report_field;
#define DM_REPORT_FIELD_TYPE_STRING 0x00000010
#define DM_REPORT_FIELD_TYPE_NUMBER 0x00000020
#define DM_REPORT_FIELD_TYPE_ID_LEN 32
#define DM_REPORT_FIELD_TYPE_HEADING_LEN 32
struct dm_report;
struct dm_report_field_type {
uint32_t type; /* object type id */
uint32_t flags; /* DM_REPORT_FIELD_* */
uint32_t offset; /* byte offset in the object */
int32_t width; /* default width */
const char id[32]; /* string used to specify the field */
const char heading[32]; /* string printed in header */
/* string used to specify the field */
const char id[DM_REPORT_FIELD_TYPE_ID_LEN];
/* string printed in header */
const char heading[DM_REPORT_FIELD_TYPE_HEADING_LEN];
int (*report_fn)(struct dm_report *rh, struct dm_pool *mem,
struct dm_report_field *field, const void *data,
void *private_data);