1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
Commit Graph

215 Commits

Author SHA1 Message Date
Zdenek Kabelac
9c9953dc3e device_mapper: join flags checks together
Just use a single bitmask flag check and OR fields together.
2024-10-22 19:36:00 +02:00
Zdenek Kabelac
fd9f7d10ca device_mapper: query for json report once
Remember _is_json_report() check for whole function.
2024-10-22 19:36:00 +02:00
Zdenek Kabelac
f59fa69507 device_mapper: use on stack allocation
Reduce number of heap allocation calls and for smaller
locally used string, use on stack allocation.
2024-10-22 19:36:00 +02:00
Zdenek Kabelac
39b7d1ba8f cleanup: typos in comments
Collection of typos in code comments.
Should have no runtime effect.
2024-08-30 16:51:15 +02:00
Zdenek Kabelac
7da47cea35 cleanup: typos in logging
Fixes various typos in printed/logged messages.
2024-08-30 16:51:15 +02:00
Zdenek Kabelac
e150931fc4 cov: validate list emptiness
Emit internal error for empty list.
2024-08-09 15:10:18 +02:00
Zdenek Kabelac
a86fb27607 cov: ensure pointer has defined value
Add initialization of 'fin' pointer.
2024-05-13 17:32:46 +02:00
Zdenek Kabelac
026344e8cc cleanup: local const arrays
No need for relocation entries for locally used arrays.
2024-05-13 12:58:37 +02:00
Zdenek Kabelac
00cfe3a24e libdm: reapply "fix condition"
This reverts commit d16a8f80e9.
So the correction was OK, however we missed to fix also
cut&paste bug here - as the second check should be
actually checking  field->type.
2024-05-10 14:24:17 +02:00
Zdenek Kabelac
a763420786 libdm: use literal for error message
Use literals for printf messages.
2024-05-08 01:55:20 +02:00
Zdenek Kabelac
d16a8f80e9 Revert "libdm: fix condition"
This reverts commit 2a1e200f7a.

Breaks some test - more analysis is needed.
2024-05-04 01:37:51 +02:00
Zdenek Kabelac
e0bd66b73a const: use common error path
Instead of defining  _field_selection_value_alloc_failed_msg[],
use common error path code for printing field_id.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
9247e754fe const: libdm tok_op 2024-05-04 01:01:57 +02:00
Zdenek Kabelac
e6f46fafe7 const: use arrays of strings 2
Next set of changes.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
efe2005022 const: drop static keyword
We don't need relocatable space to store 'const' number.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
abf7c40185 const: static array
Such array can be stored  in   .rodata   section.
2024-05-04 01:01:57 +02:00
Zdenek Kabelac
2a1e200f7a libdm: fix condition
When we switch supported_reserved_types_with_range to const
gcc repots this problem:

 warning: ‘and’ of mutually exclusive equal-tests is always 0
 !(iter->type & supported_reserved_types_with_range))) {

It's not clear from the history what was the actual intention of this
internal error test, let's assume the check wanted to make sure
that when DM_REPORT_FIELD_RESERVED_VALUE_RANGE is set,
some other fields from supported_reserved_types_with_range set
are also selected.
2024-05-04 00:58:44 +02:00
Zdenek Kabelac
3ce83f923d cov: extra pointer validation
Add few more internal errors to enusure there is no use of NULL pointers
along the code path.
2024-04-10 00:03:09 +02:00
Zdenek Kabelac
a98709aeae cov: validate count is bigger then 0
To avoid teoretical underflow...
2024-03-29 01:36:48 +01:00
Zdenek Kabelac
0dbd90d74e gcc: match signed integers 2024-03-27 01:11:00 +01:00
Zdenek Kabelac
50ad27a4ab reporting: reuse existing _get_field
Use already existing _get_field() function that also
slightly optimizes 'strlen()' usage.
2024-03-25 11:05:05 +01:00
Peter Rajnoha
c36e012926
libdm: report: fix invalid JSON if using DM_REPORT_OUTPUT_MULTIPLE_TIMES and selection
When reporting in JSON format, we need to be able to find the 'last
displayed row', not just 'last row' as we did before. This is used
to decide whether to put the JSON_SEPARATOR (the ',' character)
between the lines when reporting in JSON format.

This is mainly important in case we use a combination of JSON format
and a report marked with DM_REPORT_OUTPUT_MULTIPLE_TIMES flag.
Such report may be reused several times with different selection
criteria each time. In that case, the report always contains all lines
in memory, even though some of them do not need to pass the selection
criteria that are currently used.

Without DM_REPORT_OUTPUT_MULTIPLE_TIMES flag, the report only contains
the lines that have passed the selection criteria, so the this wasn't
an issue in this case.

Fix suggested by Lars Ellenberg and reported here: https://github.com/lvmteam/lvm2/issues/130
2023-10-23 14:18:21 +02:00
Peter Rajnoha
12b60e7c25
libdm: report: support reporting field IDs in headings
Add new DM_REPORT_OUTPUT_FIELD_IDS_IN_HEADINGS report output flag.
If enabled, column IDs are reported instead of column names in report
headings.

The 'column IDs' are IDs as found in 'const struct dm_report_field_type *fields'
array that is passed during report initialization (that is, a call to
dm_report_init/dm_report_init_with_selection). In this case, the 'id'
dm_report_field_type member is used instead of the 'heading' member.
2023-08-28 15:44:57 +02:00
Peter Rajnoha
800436d2af libdm: report: fix escaping of JSON quote char in reported fields
Commit 73ec3c954b added a way to print
only a part of the report string (repstr) to support decoding individual
string list items out of repstr.

The repstr is normally printed through _safe_repstr_output so that any
JSON_QUOTE character ('"') found within the repstr is escaped to not
interfere with value quoting in JSON format.

However, the commit 73ec3c954b missed
checking the 'len' argument passed to _safe_repstr_output function when
adding the rest of the repstr after all previous JSON_QUOTE characters
were escaped (when calling the last dm_pool_grow_object). When 'len'
is 0, we need to calculate the 'len' ourselves in the function by
simply calling strlen. This is because 'len' is passed to the function
only if we're taking a part of repstr, not as a whole.
2022-08-24 12:10:10 +02:00
Peter Rajnoha
73ec3c954b libdm: report: use proper JSON array for string list output in JSON_STD format
In JSON format, we print string list this way:

  "key" = "item1,item2,...,itemN"

while in JSON_STD format, we print string list this way:

  "key" = ["item1","item2",...,"itemN"]
2022-08-11 11:10:11 +02:00
Peter Rajnoha
fbee18f6e5 libdm: report: separate basic and JSON+JSON_STD format in _output_field
Use separate functions to handle basic and JSON+JSON_STD format.
It's clearer this way than interleaving both in the same function.
2022-08-11 11:10:11 +02:00
Peter Rajnoha
31cd8346ae libdm: report: enhance the way string list is stored internally
Before, we stored only the report string itself for a string list
in field->report_string. The field->report_string has either
sorted items or not, depending on what we need for a field -
some report fields have sorted output, some don't...

The field->sort_value.value then contains pointer to the exact
field->report_string. The field->sort_value.items ALWAYS keeps
sorted array of individual items, represented as '[position,length]'
pairs pointing to the field->sort_value.value string.

This approach was fine as far as we didn't need to apply further
formatting to field->report_string. However, if we need to apply
further formatting to field->report_string content, taking into
account individual items, we also need to know where each item
starts and what is its length. Before, we only knew this when
items in report string were sorted, but not in the unsorted version.

We can't rely on the delimiter (default ",") only to separate items
back out of report string, because that delimiter can be contained
in the item value itself.

So this patch enhances the field->report_string for a string list so
it also contains '[position,length]' pairs for each individual item
inside field->report_string. We store this array right beyond the
string itself and we encode it in the same manner we already did for
field->sort_value.items before.

If field->report_string has sorted items, the field->sort_value.items
just points to the array of items we store beyond the report string.
If field->report_string has unsorted items, we store separate array
of items for both field->report_string and field->sort_value.

This patch also cleans up the _report_field_string_list function a bit
so it's easier and more straightforward to follow than the original
version.

Example. If we have "abc", "xy", "defgh" as list on input with ","
as delimiter, then:

  - field->report_string will have:

    - if we need field->report_string unsorted:

        abc,xy,defgh\0{[3,12],[0,3],[4,2],[7,5]}
        |____________||________________________|
           string      array of [pos,len] pairs
                       |____||________________|
                       #items      items

    - if we need field->report_string sorted:

                 repstr_extra
                      |
                      V
        abc,defgh,xy\0{[3,12],[0,3],[4,5],[10,2]}
        |____________||________________________|
           string      array of [pos,len] pairs
                       |____||________________|
                       #items      items

  - field->sort_value will have:

    - if field->report_string is unsorted:

        field->sort_value.value = field->report_string
        field->sort_value.items = {[0,3],[0,3],[7,5],[4,2]}
                                    (that is 'abc,defgh,xy')

    - if field->report_string is sorted already:

        field->sort_value.value = field->report_string
        field->sort_value.items = repstr_extra
                                  (that is also 'abc,defgh,xy')
2022-08-11 11:10:11 +02:00
Peter Rajnoha
1e31621ceb libdm: report: use 'null' for undefined numeric values in JSON_STD output
For JSON_STD format, use 'null' if a field has no value at all.

In JSON format, we print undefined numeric values this way:

  "key" = ""

while in JSON_STD format, we print undefined numeric values this way:

  "key" = null

(Keep in mind that 'null' is different from 0 (zero value) which is
a defined value.)
2022-08-11 11:10:11 +02:00
Peter Rajnoha
99299eb728 libdm: report: remove double quotes around numeric values in JSON_STD output
In JSON format, we print numeric values this way:

  "key" = "N"

while in JSON_STD format, we print numeric value this way:

  "key" = N

(Where N is a numeric value.)
2022-08-11 11:10:11 +02:00
Peter Rajnoha
02f015990b libdm: report: add DM_REPORT_GROUP_JSON_STD group
The original JSON formatting will be still available using the original
DM_REPORT_GROUP_JSON identifier. Subsequent patches will add enhancements
to JSON formatting code so that it adheres more to JSON standard - this
will be identified by new DM_REPORT_GROUP_JSON_STD identifier.
2022-08-11 11:10:11 +02:00
Zdenek Kabelac
63930f576a cov: add some initializers 2021-09-13 12:34:41 +02:00
Zdenek Kabelac
21bdd0a359 clang: always initialized values 2021-04-23 23:00:55 +02:00
Zdenek Kabelac
f1d3648dc7 libdm: eliminate some abi-dumper errors
ABI dumper does not like missing enum/union/struct names,
so add them with _e, _u suffix.

Usage reference:

https://doc.dpdk.org/guides-16.04/contributing/versioning.html
2021-04-06 21:26:57 +02:00
Zdenek Kabelac
82bffa99ad libdm: simplify line emitter checking 2021-02-10 15:39:03 +01:00
Zdenek Kabelac
79879bd201 cov: split check for type assignment
Check that type is always defined, if not make it explicit internal
error (although logged as debug - so catched only with proper lvm.conf
setting).
This ensures later type being NULL can't be dereferenced with coredump.
2018-11-03 16:09:36 +01:00
Zdenek Kabelac
2513661467 cov: ensure vars are set
Make sure, tmp_begin and tmp_end are always set, even for blind
coverity.
2018-10-15 17:49:44 +02:00
Joe Thornber
7f97c7ea9a build: Don't generate symlinks in include/ dir
As we start refactoring the code to break dependencies (see doc/refactoring.txt),
I want us to use full paths in the includes (eg, #include "base/data-struct/list.h").
This makes it more obvious when we're breaking abstraction boundaries, eg, including a file in
metadata/ from base/
2018-05-14 10:30:20 +01:00
Zdenek Kabelac
0c9e3e8df2 coverity: add some initilizers
Coverity cannot do a deeper analyzis so let's make just reports
go away and initialize them to 0.
2017-11-07 21:26:11 +01:00
Zdenek Kabelac
a02db1c45a libdm: fix parentheses in assignment + comparison
As reported, fix incorrect placement of parentheses.
TODO: add testing code.
2017-09-20 15:14:16 +02:00
Zdenek Kabelac
0bf836aa14 tidy: prefer not using else after return
clang-tidy: avoid using  'else' after return - give more readable code,
and also saves indention level.
2017-07-20 11:18:29 +02:00
Zdenek Kabelac
0d0a3397c2 cleanup: add braces in macro 2017-07-20 11:18:29 +02:00
Zdenek Kabelac
f7e62bc55c cleanup: drop extra compare
dm_free() already validates for NULL itself.
2017-07-17 12:32:18 +02:00
Zdenek Kabelac
ba9820b142 numbers: strtod or strtoul need reset of errno
API for strtod() or strtoul() needs reset of errno, before it's being
called. So add missing resets in missing places and some also some
errno validation for out-of-range numbers.
2017-07-17 12:32:18 +02:00
Zdenek Kabelac
feed61f3fa libdm: use rounded float for percent print
Use new added  dm_percent_to_round_float to enhance print
of percentage values.
2017-06-24 17:44:42 +02:00
Zdenek Kabelac
2ef8da61eb libdm: implement dm_percent_to_round_float
Add function to adjust printing of percent values in better way.
Rounding here is going along following rules:

0% & 100% are always clearly reported with  .0 decimal points.

Values slightly above 0% we make sure a nearest bigger
non zero value with given precission is printed
(i.e. 0.01  for  %.2f  will be shown)

For values closely approaching 100% we again detect and adjust value
that is less then 100 when printed.
(i.e. 99.99  for %.2f will be shown).

For other values we are leaving them with standard rounding mechanism
since we care mainly about corner values 0 & 100 which need to be
printed precisely.
2017-06-24 17:44:40 +02:00
Zdenek Kabelac
a3579aafc5 cleanup: use matching signed number comparation 2017-02-13 10:06:19 +01:00
Zdenek Kabelac
b6301aa977 cleanup: use fall through
gcc gets 'selective' on having commented fall through case.
2017-02-13 10:06:18 +01:00
Zdenek Kabelac
48d33e5fb6 cov: use unsigned for single bit values
Avoid using signed int.
2016-12-12 11:21:42 +01:00
Zdenek Kabelac
d70f112762 libdm: check for mem when _canonicalize_field_ids
Add missing check for dm_pool_strdup() call (Coverity).
2016-10-03 17:46:26 +02:00
Peter Rajnoha
7d1125e5b7 libdm: report: add dm_report_group_output_and_pop_all
The dm_report_group_output_and_pop_all calls dm_report_output and
dm_report_group_pop for all the items that are currently in report
group. This is just a shortcut that makes it easier to output and
pop group's content so the group handle can be reused again without
a need to initialize and configure it again.

The functionality of dm_report_group_output_and_pop_all is the
same as dm_report_destroy but without destroying the report group
handle.
2016-08-09 18:24:45 +02:00