127 Commits

Author SHA1 Message Date
Peter Krempa
98f6f2081d util: alloc: Reimplement VIR_APPEND_ELEMENT using virAppendElement
Use virAppendElement instead of virInsertElementsN to implement
VIR_APPEND_ELEMENT which allows us to remove error handling as the
only relevant errors were removed when switching to aborting memory
allocation functions.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-08-06 08:53:25 +02:00
Michal Privoznik
c8238579fb lib: Drop internal virXXXPtr typedefs
Historically, we declared pointer type to our types:

  typedef struct _virXXX virXXX;
  typedef virXXX *virXXXPtr;

But usefulness of such declaration is questionable, at best.
Unfortunately, we can't drop every such declaration - we have to
carry some over, because they are part of public API (e.g.
virDomainPtr). But for internal types - we can do drop them and
use what every other C project uses 'virXXX *'.

This change was generated by a very ugly shell script that
generated sed script which was then called over each file in the
repository. For the shell script refer to the cover letter:

https://listman.redhat.com/archives/libvir-list/2021-March/msg00537.html

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2021-04-13 17:00:38 +02:00
Peter Krempa
e49eb0aaa7 virJSONValueObjectDeflattenWorker: use g_strsplit instead of virStringSplitCount
The presence of the second element can be checked by looking at it
directly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-04-12 15:55:09 +02:00
Peter Krempa
51221af10e util: json: Remove virJSONValueNewArrayFromBitmap
The function is used only inside of the file. We can open-code it and
remove it as it's not very useful.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2021-04-12 14:59:29 +02:00
Peter Krempa
f55031535c util: json: Remove virJSONValueGetArrayAsBitmap
The function is not used.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2021-04-12 14:59:29 +02:00
Michal Privoznik
0c30e7221c lib: Use g_steal_pointer() more
Generated by the following spatch:

  @@
  expression a, b;
  @@

  + b = g_steal_pointer(&a);
  - b = a;
    ... when != a
  - a = NULL;

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2021-03-24 13:57:51 +01:00
Jiri Denemark
1107c0b9c3 Do not check return value of VIR_REALLOC_N
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2021-03-22 12:44:18 +01:00
Peter Krempa
0af84a81fc util: json: Report non-OOM error on yajl failure
The yajl library returns a wide range of error codes so reporting OOM on
any failure is wrong. In case the error was really based by memory issue
the error reporting will probably cause an abort anyways. Change the
error message so that we know that it happened in JSON at least.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
2021-03-02 09:50:20 +01:00
Peter Krempa
8298a5bd69 virJSONParserInsertValue: Take double pointer for @value
The function calls virJSONValueObjectAppend/virJSONValueArrayAppend, so
by taking a double pointer we can drop the pointer clearing from
callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:38 +01:00
Peter Krempa
6b12e220b0 virJSONValueNewNumber: Take ownership of passed string
Avoid pointless copies of temporary strings when constructing number
JSON objects.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:38 +01:00
Peter Krempa
395ecd7a8c virJSONParserHandle*: Refactor memory cleanup and drop NULL checks
virJSONValueNew* won't return error nowadays so NULL checks are not
necessary. The memory can be cleared via g_autoptr.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:38 +01:00
Peter Krempa
6431b20c3e virJSONValueArrayAppend: Clear pointer when taking ownership of passed value
The parent array takes ownership of the inserted value once all checks
pass. Don't make the callers second-guess when that happens and modify
the function to take a double pointer so that it can be cleared once the
ownership is taken.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
5fc3892891 virJSONValueObjectAppend: Clear pointer when taking ownership of passed value
The parent object takes ownership of the inserted value once all checks
pass. Don't make the callers second-guess when that happens and modify
the function to take a double pointer so that it can be cleared once the
ownership is taken.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
e4b26c48cb virJSONValueObjectAddVArgs: Use autofree for the temporary bitmap
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
94ab321ffc virJSONValueNewArrayFromBitmap: Refactor cleanup
Use g_autoptr for the JSON value objects and remove the cleanup label
and inline freeing of objects.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
7d3a33b26b virJSONValue(Array|Object)Append*: Simplify handling of appended object
Use g_autofree for the pointer of the added object and remove the NULL
checks for values returned by virJSONValueNew* (except
virJSONValueNewNumberDouble) since they can't fail nowadays.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
3e411cbc5f virJSONValueCopy: Don't use virJSONValue(Object|Array)Append
We know the exact number of keys or array members for the copied objects
so we can pre-allocate the arrays rather than inserting into them in a
loop incurring realloc copy penalty.

Also virJSONValueCopy now can't fail since all of the functions
allocating the different cases use just g_new/g_strdup internally so we
can remove the NULL checks from the recursive calls.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:37 +01:00
Peter Krempa
b116e715a8 virJSONValueObjectInsert: Clear @value on successful insertion
The function takes ownership of @value on success so the proper
semantics will be to clear out the @value pointer. Convert @value to a
double pointer to do this.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-02-20 13:26:36 +01:00
Laine Stump
238d96b8f1 util: replace VIR_FREE with g_free in all vir*Free() functions
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2021-02-05 00:20:43 -05:00
Peter Krempa
45187ef384 util: json: Replace virJSONValueObjectSteal by virJSONValueObjectRemoveKey
virJSONValueObjectRemoveKey can be used as direct replacement. Fix the
one caller and remove the duplicate function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-01-08 09:17:25 +01:00
Michal Privoznik
b7d4e6b67e lib: Replace VIR_AUTOSTRINGLIST with GStrv
Glib provides g_auto(GStrv) which is in-place replacement of our
VIR_AUTOSTRINGLIST.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-12-02 15:43:07 +01:00
Michal Privoznik
043b50b948 virJSONValueObjectGetStringArray: Report error if @key is not an array
The virJSONValueObjectGetStringArray() function is given a @key
which is supposed to be an array inside given @object. Well, if
it's not then an error state is returned (NULL), but no error
message is set.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-12-01 17:21:14 +01:00
Marc-André Lureau
b3dad96972 util: json: add virJSONValueObjectGetStringArray convenience
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Han Han <hhan@redhat.com>
2020-12-01 11:23:37 +01:00
Ján Tomko
e59b8f96f7 util: a-n: use g_new0
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-10-06 12:31:34 +02:00
Peter Krempa
dad2009de4 util: bitmap: Remove virBitmapNewQuiet
We no longer report any errors so all callers can be replaced by
virBitmapNew. Additionally virBitmapNew can't return NULL now so error
handling is not necessary.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-10-05 12:57:46 +02:00
Tim Wiederhake
f323da47ec util: Use glib memory functions in virJSONValueGetArrayAsBitmap
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-09-14 17:28:51 +02:00
Peter Krempa
9c9732d03a util: json: Introduce virJSONValueObjectAppendStringPrintf
Add a variant similar to virJSONValueObjectAppendString which also
formats more complex value strings with printf syntax.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:57 +02:00
Michal Privoznik
de1ac5930a Don't pass NULL to yajl_free()
Unfortunately, yajl_free() is not NOP on NULL. It really does
expect a valid pointer. Therefore, check whether the pointer we
want to pass to it is NULL or not.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-03-30 16:11:13 +02:00
Peter Krempa
070310a680 virjson: Deflatten arrays generated by the json->commandline generator
For the few instances where we'd generate an array in dotted syntax we
should be able to parse it back. Add another step in deflattening of the
dotted syntax which reconstructs the arrays so that the backing store
parser can parse it.

https://bugzilla.redhat.com/show_bug.cgi?id=1466177

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
df30457587 util: json: Extract deflattening of keys into a separate function
Extract the code so that there's a clean separation once we'll want do
do other steps.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
fca6f593c9 virJSONValueObjectDeflattenWorker: Refactor cleanup
Use automatic memory handling to remove the cleanup section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-20 09:47:16 +01:00
Peter Krempa
e9153cc604 util: json: Convert virJSONValueNewObject() to g_new0
Make it obvious that the function always returns a valid pointer and fix
all callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-03-05 11:31:38 +01:00
Peter Krempa
d69470a18a virJSONValueNewArray: Use g_new0 to allocate and remove NULL checks from callers
Use the glib allocation function that never returns NULL and remove the
now dead-code checks from all callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-04 13:45:33 +01:00
Peter Krempa
3b60a0c027 util: json: Introduce virJSONValueArrayConcat
Add a helper that concatenates the second array into the first.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-04 13:45:32 +01:00
Ján Tomko
93de3025b4 Remove the rest of VIR_STRNDUP
Replace all the uses passing a single parameter as the length.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-12-12 14:24:35 +01:00
Daniel P. Berrangé
bc7e72914a util: consolidate on one free callback for hash data
This previous commit introduced a simpler free callback for
hash data with only 1 arg, the value to free:

  commit 49288fac965f0ee23db45d83ae4ef3a9a71dafd0
  Author: Peter Krempa <pkrempa@redhat.com>
  Date:   Wed Oct 9 15:26:37 2019 +0200

    util: hash: Add possibility to use simpler data free function in virHash

It missed two functions in the hash table code which need
to call the alternate data free function, virHashRemoveEntry
and virHashRemoveSet.

After the previous patch though, there is no code that
makes functional use of the 2nd key arg in the data
free function. There is merely one log message that can
be dropped.

We can thus purge the current virHashDataFree callback
entirely, and rename virHashDataFreeSimple to replace
it.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-11-22 14:21:28 +00:00
Daniel Henrique Barboza
93af79fba3 util: remove unneeded cleanup labels
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-11-12 17:54:01 +01:00
Michal Privoznik
91d88aaf23 util: Use g_strdup_printf() instead of virAsprintf()
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-11-12 16:15:58 +01:00
Michal Privoznik
3b4df5d350 Drop needless ret variable
In few places we have the following code pattern:

  int ret;
  ... /* @ret is not accessed here */
  ret = f(...);
  return ret;

This pattern can be written less verbose:

  ...
  return f(...);

This patch was generated with following coccinelle spatch:

  @@
  type T;
  constant C;
  expression f;
  identifier ret;
  @@
  -T ret = C;
   ... when != ret
  -ret = f;
  -return ret;
  +return f;

Afterwards I needed to fix a few places, e.g. comment in
virDomainNetIPParseXML() was removed too because coccinelle
thinks it refers to @ret while in fact it doesn't. Also in few
places it replaced @ret declaration with a few spaces instead of
removing the line. But nothing terribly wrong.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-10-24 08:10:37 +02:00
Ján Tomko
18f377178a util: use g_strdup instead of VIR_STRDUP
Replace all occurrences of
  if (VIR_STRDUP(a, b) < 0)
     /* effectively dead code */
with:
  a = g_strdup(b);

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-21 12:51:59 +02:00
Ján Tomko
a3931b4996 util: use g_steal_pointer instead of VIR_STEAL_PTR
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 15:59:42 +02:00
Ján Tomko
45678bd70a Use g_autoptr instead of VIR_AUTOPTR
Since commit 44e7f029159ed701b4a1739ac711507ee53790ed
    util: rewrite auto cleanup macros to use glib's equivalent

VIR_AUTOPTR aliases to g_autoptr. Replace all of its use by the GLib
macro version.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 12:06:43 +02:00
Ján Tomko
1e2ae2e311 Use g_autofree instead of VIR_AUTOFREE
Since commit 44e7f029159ed701b4a1739ac711507ee53790ed
    util: rewrite auto cleanup macros to use glib's equivalent

VIR_AUTOFREE is just an alias for g_autofree. Use the GLib macros
directly instead of our custom aliases.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 12:06:43 +02:00
Ján Tomko
2b2c67b401 virbuffer: use g_auto directly for virBuffer
Since commit 44e7f029159ed701b4a1739ac711507ee53790ed
    util: rewrite auto cleanup macros to use glib's equivalent

VIR_AUTOCLEAN is just an alias for g_auto. Use the GLib macros
directly instead of our custom aliases.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 12:06:43 +02:00
Ján Tomko
679f8b3994 util: use G_GNUC_UNUSED
Use G_GNUC_UNUSED from GLib instead of ATTRIBUTE_UNUSED.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-15 11:25:25 +02:00
Peter Krempa
12a330b50c util: json: Introduce helper to prepend string into a virJSONValueObject
Libvirt treats the JSON objects as lists thus the values appear in the
order they were added. To avoid too much changes introduce a helper
which allows to prepend a string which will allow to keep certain
outputs in order.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-07-18 17:59:34 +02:00
Peter Krempa
17f160b288 util: json: Use VIR_APPEND_ELEMENT in virJSONValueObjectAppend
The function open-codes addition into an array. Use the helper instead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-04-10 16:34:57 +02:00
Peter Krempa
285c5f28c4 util: Move enum convertors into virenum.(c|h)
virutil.(c|h) is a very gross collection of random code. Remove the enum
handlers from there so we can limit the scope where virtutil.h is used.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-04-10 09:12:04 +02:00
Peter Krempa
c0abcca417 util: Don't include 'viralloc.h' into other header files
'viralloc.h' does not provide any type or macro which would be necessary
in headers. Prevent leakage of the inclusion.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-04-10 09:12:04 +02:00
Ján Tomko
8753865c76 virjson: drop compatibility macros
Since commit 66460e3 dropped support for YAJL 1, we no longer need
these.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-04-03 15:19:02 +02:00