Commit Graph

29786 Commits

Author SHA1 Message Date
Thomas Haller
4bdadb6ccc build: workaround compiler warning in meson detection of __uint128_t
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails detection with:

  Code:
   int main() {
  static __uint128_t v1 = 100;
  static __uint128_t v2 = 10;
  static __uint128_t u;
  u = v1 / v2;
  }
  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmp451h9ogd/testfile.c -o /data/src/glib/build/meson-private/tmp451h9ogd/output.obj -c -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmp451h9ogd/testfile.c: In function 'main':
  /data/src/glib/build/meson-private/tmp451h9ogd/testfile.c:4:20: error: variable 'u' set but not used [-Werror=unused-but-set-variable]
      4 | static __uint128_t u;
        |                    ^
  cc1: all warnings being treated as errors
  -----------
  Checking if "__uint128_t available" compiles: NO
2024-02-07 20:40:59 +01:00
Thomas Haller
d0afd2b783 build: drop unused variable from "C99 snprintf" meson check
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails detection with:

  Running compile:
  ...
  int
  main(void)
  {
    doit();
    exit(1);
  }
  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c -o /data/src/glib/build/meson-private/tmp7n5yqh0h/output.exe -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c: In function 'doit':
  /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c:10:11: error: unused variable 'args' [-Werror=unused-variable]
     10 |   va_list args;
        |           ^~~~
  /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c:13:33: error: '1234567' directive output truncated writing 7 bytes into a region of size 5 [-Werror=format-truncation=]
     13 |   r = snprintf(buffer, 5, "1234567");
        |                            ~~~~~^~
  /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c:13:7: note: 'snprintf' output 8 bytes into a destination of size 5
     13 |   r = snprintf(buffer, 5, "1234567");
        |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Could not compile test file /data/src/glib/build/meson-private/tmp7n5yqh0h/testfile.c: 1

  Checking if "C99 snprintf" runs: DID NOT COMPILE
2024-02-07 20:40:59 +01:00
Thomas Haller
5525672a5f build: avoid "-Werror=format-extra-args" warnings in detecting printf for gnulib
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails detection with:

  Running compile:
  Working directory:  /data/src/glib/build/meson-private/tmpoozk2y4b
  Code:

  #include <stdio.h>
  #include <string.h>
  static char buf[100];
  static double zero = 0.0;
  int main ()
  {
    if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
        || (strcmp (buf, "       inf") != 0
            && strcmp (buf, "  infinity") != 0))
      return 1;
    return 0;
  }

  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c -o /data/src/glib/build/meson-private/tmpoozk2y4b/output.exe -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c: In function 'main':
  /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c:8:21: error: too many arguments for format [-Werror=format-extra-args]
      8 |   if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
        |                     ^~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Could not compile test file /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c: 1

  Checking if "printf supports the zero flag correctly" runs: DID NOT COMPILE
2024-02-07 20:40:59 +01:00
Marco Trevisan
bc0e53aa27 Merge branch 'callable-docs' into 'main'
gicallableinfo: Clarify docs for callables with no return type

See merge request GNOME/glib!3902
2024-02-07 18:12:30 +00:00
Philip Withnall
389e8a439b gicallableinfo: Clarify docs for callables with no return type
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 15:59:56 +00:00
Philip Withnall
8f6926d4ce girepository: Document NULL-termination/length semantics for methods
This doesn’t change the existing behaviour, just documents it a bit more
clearly.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 15:47:13 +00:00
Philip Withnall
01f9796532 girepository: Add length ‘out’ arguments to several getter methods
This makes them consistent with the other getter methods in
`GIRepository` which return lists/arrays. It’s useful to return the
length, as that means the caller doesn’t have to work it out by
iterating over the entire array.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-07 15:47:13 +00:00
Philip Withnall
8dee910d77 Merge branch 'th/meson-werror-fixes' into 'main'
[th/meson-werror-fixes] some fixes for meson detection failure with -Werror

See merge request GNOME/glib!3895
2024-02-07 14:26:30 +00:00
Michael Catanzaro
b7ef29560d Merge branch 'statvfs-type' into 'main'
glocalfile: Support statvfs.f_type

See merge request GNOME/glib!3893
2024-02-07 14:24:52 +00:00
Michael Catanzaro
d753985708 Merge branch 'minor-fixes' into 'main'
Minor fixes/docs changes to GFileDescriptorBased and GTask

See merge request GNOME/glib!3894
2024-02-07 14:21:11 +00:00
Thomas Haller
a91219f164 build: fix compiler warnings in gnulib printf meson build checks
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails detection with:

  ...
    if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3)
      result |= 1;
    if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5)
      result |= 2;
    if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5
        || buf[0] != '1')
      result |= 4;
    if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5
        || buf[0] != '1')
      result |= 4;
    return result;
  }

  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c -o /data/src/glib/build/meson-private/tmpu3dav6iy/output.exe -Wall -Werror -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c: In function 'main':
  /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c:12:21: error: too many arguments for format [-Werror=format-extra-args]
     12 |   if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3)
        |                     ^~~~~~~~~~~~
  /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c:14:21: error: too many arguments for format [-Werror=format-extra-args]
     14 |   if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5)
        |                     ^~~~~~~~~~~~
  /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c:16:21: error: too many arguments for format [-Werror=format-extra-args]
     16 |   if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5
        |                     ^~~~~~~~~~~
  /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c:19:21: error: too many arguments for format [-Werror=format-extra-args]
     19 |   if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5
        |                     ^~~~~~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Could not compile test file /data/src/glib/build/meson-private/tmpu3dav6iy/testfile.c: 1
2024-02-07 14:46:57 +01:00
Thomas Haller
a65fa9a33f build: fix compiler warning in gl_cv_func_frexpl_works meson build check
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails with:

  ...
  Command line: `cc ./glib/build/meson-private/tmp7iwplrgi/testfile.c -o ./glib/build/meson-private/tmp7iwplrgi/output.obj -c -O3 -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  ./glib/build/meson-private/tmp7iwplrgi/testfile.c: In function 'main':
  ./glib/build/meson-private/tmp7iwplrgi/testfile.c:83:21: error: unused variable 'y' [-Werror=unused-variable]
     83 |         long double y = frexpl (x, &exp);
        |                     ^
  cc1: all warnings being treated as errors
  -----------
  Checking if "frexpl prototype can be re-listed" compiles: NO

  glib/gnulib/meson.build:316:2: ERROR: Problem encountered: frexpl() is missing or broken beyond repair, and we have nothing to replace it with
2024-02-07 14:46:57 +01:00
Thomas Haller
90817d0fab build: workaround meson's cc.has_member() causing compiler warning.
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails with:

  ...
  #include <sys/stat.h>
          void bar(void) {
              struct stat foo;
              foo.st_mtim.tv_nsec;

          }
  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmpbjjq3ikp/testfile.c -o /data/src/glib/build/meson-private/tmpbjjq3ikp/output.obj -c -O3 -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmpbjjq3ikp/testfile.c: In function 'bar':
  /data/src/glib/build/meson-private/tmpbjjq3ikp/testfile.c:45:24: error: statement with no effect [-Werror=unused-value]
     45 |             foo.st_mtim.tv_nsec;
        |             ~~~~~~~~~~~^~~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Checking whether type "struct stat" has member "st_mtim.tv_nsec" : NO
2024-02-07 14:46:51 +01:00
Philip Withnall
27fb6ffce2 Merge branch 'wip/smcv/reuse' into 'main'
reuse: Fix screen-scraping expression for version 2.x

See merge request GNOME/glib!3897
2024-02-07 13:03:12 +00:00
Philip Withnall
ced299c7ad Merge branch 'reuse-updates' into 'main'
reuse: Add dep5 lines for gnulib and libcharset

See merge request GNOME/glib!3896
2024-02-07 12:50:40 +00:00
Simon McVittie
5d888bc7c2 reuse: Fix screen-scraping expression for version 2.x
reuse 2.1.0 outputs "files with ..." instead of "Files with ...",
but it's easy to accept both.

Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-07 12:38:25 +00:00
Philip Withnall
722805fd09 reuse: Update CI limits on files missing SPDX data
One more monotonic step on the way to full REUSE compliance.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #1415
2024-02-07 12:10:04 +00:00
Philip Withnall
b1f540d267 reuse: Add dep5 lines for gnulib and libcharset
Since they are copylibs, we don’t want to diverge from upstream by
adding SPDX lines to all the files, so add them to the dep5 file
instead.

gnulib discussed adding them upstream a couple of years ago but the
discussion seemed to peter out:
https://lists.gnu.org/archive/html/bug-gnulib/2021-06/msg00004.html.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 12:08:46 +00:00
Thomas Haller
8ea0f7d045 build: fix detection of int64_t_typedef in meson build check
Otherwise, `CFLAGS='-Wall -Werror' meson build` fails with:

  Checking for size of "ssize_t" : 8
  Running compile:
  Working directory:  ./glib/build/meson-private/tmpgwlkasyk
  Code:
   #if defined(_AIX) && !defined(__GNUC__)
                      #pragma options langlvl=stdc99
                      #endif
                      #pragma GCC diagnostic error "-Wincompatible-pointer-types"
                      #include <stdint.h>
                      #include <stdio.h>
                      int main () {
                        int64_t i1 = 1;
                        long *i2 = &i1;
                        return 1;
                      }
  -----------
  Command line: `cc ./glib/build/meson-private/tmpgwlkasyk/testfile.c -o ./glib/build/meson-private/tmpgwlkasyk/output.obj -c -O3 -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  ./glib/build/meson-private/tmpgwlkasyk/testfile.c: In function 'main':
  ./glib/build/meson-private/tmpgwlkasyk/testfile.c:9:29: error: unused variable 'i2' [-Werror=unused-variable]
      9 |                       long *i2 = &i1;
        |                             ^~
  cc1: all warnings being treated as errors
2024-02-07 11:49:57 +01:00
Philip Withnall
9eeb8a87d3 glocalfile: Support statvfs.f_type
This is another way to get the file system type from `statvfs()`, newly
added in glibc 2.39
(https://lwn.net/ml/libc-alpha/38790850.J2Yia2DhmK@pinacolada/).

This hasn’t been tested with glibc 2.39 as I don’t have it, but the
change seems fairly straightforward.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 10:34:59 +00:00
Philip Withnall
90ec3d3499 gtask: Clarify when GTask:completed is suitable to use
It’s not suitable to use to check if your own code has already called
`g_task_return_*()`, as it doesn’t directly correlate to that.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 10:34:08 +00:00
Philip Withnall
15cef2ea59 gfiledescriptorbased: Fix incorrect precondition return value
`0` is a valid FD, `-1` is not, so `-1` is more suitable to use.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-07 10:34:08 +00:00
Michael Catanzaro
a040562d6c Merge branch 'param-leak' into 'main'
gtestutils: Ensure test_data is freed even if a test is skipped

See merge request GNOME/glib!3887
2024-02-06 18:33:23 +00:00
Philip Withnall
20c7479cc8 Merge branch 'wip/smcv/codegen-stdout' into 'main'
codegen: Use `-` instead of `stdout` for output to stdout

See merge request GNOME/glib!3886
2024-02-06 15:13:59 +00:00
Simon McVittie
040caa5f6a gdbus-codegen(1): Suggest --pragma-once for headers written to stdout
Otherwise we would generate a multiple-inclusion guard of the
form `#ifndef __STDOUT__ ...`, which can only work for one D-Bus
interface per translation unit.

Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 14:06:51 +00:00
Simon McVittie
fc7942f46b gdbus-codegen: If writing body to stdout, don't try to include header
If we're writing the body to standard output, we cannot know what the
filename of the corresponding header is going to be, but it seems
vanishingly unlikely that it will be either `stdout.h` (which we would
traditionally have generated) or `-.h` (which we would have generated
since !3886).

This makes some of the output snippets sufficiently short that black(1)
requires that they are folded into a single line.

Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 14:06:45 +00:00
Simon McVittie
5e8f053d33 tests: Exercise gdbus-codegen --interface-info-header with empty input
Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 13:55:35 +00:00
Simon McVittie
02a3417ac4 tests: Exercise gdbus-codegen --interface-info-body with empty input
Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 13:55:33 +00:00
Philip Withnall
44e3ebccd1 tests: Add basic tests for GIUnionInfo
These would have caught the regression fixed in the previous commit.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-06 13:42:43 +00:00
Philip Withnall
c8946b8a92 gitypes: Fix integer values of GIInfoType
This effectively reverts commit 0910e2f6ad. I thought that `GIInfoType`
was decoupled from `GITypelibBlobType`, but it turns out that
`girepository.c` calls `gi_info_new_full()` with blob types, implicitly
converting them to info types.

This was causing anything with a type higher than the `INVALID_0` value
to be loaded as the wrong type.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-06 13:40:20 +00:00
Philip Withnall
e286497c1f giunioninfo: Mark get_discriminator_type() as nullable
It may (and should) return `NULL` if called on a union which isn’t
discriminated.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-06 13:35:23 +00:00
Philip Withnall
11e8075e51 giunioninfo: Split success and return value for get_discriminator_offset()
Otherwise there’s no obvious suitable return value to return when the
union is *not* discriminated.

This is an API break, but libgirepository has not been in a stable
release yet, so that’s fine.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-06 13:34:17 +00:00
Simon McVittie
1ba8386886 codegen: Document --output -
Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 11:53:06 +00:00
Simon McVittie
6a1fdb8145 codegen: Use - instead of stdout for output to stdout
In command-line tools, ordinary filenames normally do not have
special-cased meanings, so commit 3ef742eb "Don't skip dbus-codegen tests
on Win32" was a command-line API break: in the unlikely event that a
user wanted to write to a file named exactly `stdout`, this would have
been an incompatible change.

There is a conventional pseudo-filename to represent standard output,
which is `-` (for example `cat -` is a no-op filter). Adding support
for this is technically also a command-line API break (in the very
unlikely event that a user wants to write to a file named exactly `-`,
they would now have to write it as `./-`), but filenames starting with
a dash often require special treatment anyway, so this probably will not
come as a surprise to anyone.

When the output filename is `-` we don't want to use `#ifdef _____` as
a header guard, so special-case it as `__STDOUT__` as before.

Signed-off-by: Simon McVittie <smcv@collabora.com>
2024-02-06 11:53:06 +00:00
Philip Withnall
b06107579c gtestutils: Reformat docs for g_test_queue_destroy()
Fix a typo in them and improve the formatting while I’m there.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-06 11:05:13 +00:00
Philip Withnall
9dad94e7e5 gtestutils: Ensure test_data is freed even if a test is skipped
It’s reasonable for the `main()` function in a test suite to pass
ownership of some test data to `g_test_add_data_func_full()`, along with
a `GDestroyNotify`, and rely on GTest to free the data after all tests
have been run.

Unfortunately that only worked if the test was run, and not skipped
before its test function was called. This could happen if, for example,
it had `/subprocess` in its path.

Fix that by always freeing the test data. This required reworking how
tests are skipped, slightly, to bring all the logic for that within
`test_case_run()`, so that it could always handle the memory management.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3248
2024-02-06 11:02:24 +00:00
Philip Withnall
5f6b1516ae tests: Rework how slow param test is skipped
It’s more helpful to always register the test, even if it’s normally
skipped, since then the skip is recorded in the test logs so people can
see what’s ‘missing’ from them.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-06 11:01:46 +00:00
Philip Chimento
614437107a tests: Add a test for finding methods and vfuncs in a GIObjectInfo
Helps: #3246
2024-02-05 18:40:58 +00:00
Philip Withnall
7acef299c2 girepository: Fix declaration of ‘find using interfaces’ methods
Fix the declaration and documentation of
`gi_object_info_find_method_using_interfaces()` and
`gi_object_info_find_vfunc_using_interfaces()`. The documentation was
wrong when I wrote it: the value returned is the object or interface
which declares the method or vfunc, not the one which implements it.

The returned declarer info may be a `GIObjectInfo` or a
`GIInterfaceInfo`. Since those two types have no subtype relation
between them, the return type has to be changed to `GIBaseInfo`. Using
`GIObjectInfo` would have been fine in girepository-1.0 because all
`*Info` types were aliases of each other — but since the move to
`GTypeInstance` this is no longer true.

A unit test will be in the following commit.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Fixes: #3246
2024-02-05 18:40:03 +00:00
Philip Withnall
25e68476fa Merge branch 'garray_maxuint' into 'main'
garray: improve boundary checks

Closes #3240

See merge request GNOME/glib!3882
2024-02-05 18:34:14 +00:00
Philip Withnall
702719dee9 build: Ensure the libgirepository docs are installed
Make the `meson.build` match the other docs `meson.build` files.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2024-02-05 18:03:52 +00:00
Philip Withnall
bad849347d docs: Add migration guide for libgirepository
This covers all the API changes from girepository-1.0 to
girepository-2.0 so far.

It was generated by manually looking through the changes in `git diff
af36393e6.. -- girepository/*.h`.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Helps: #3155
2024-02-05 18:03:52 +00:00
Philip Withnall
59a818c28b Merge branch '3243-get-type-info-type-type-type' into 'main'
girepository: Rename gi_arg_info_load_type() to gi_arg_info_load_type_info()

Closes #3243

See merge request GNOME/glib!3878
2024-02-05 17:46:24 +00:00
Tobias Stoeckmann
766bc75917 garray: Missing precondition checks
The function arguments index_ and length could lead to a sum which is
larger than G_MAXUINT, possibly leading to out of boundary accesses
in array_remove_range functions.

Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>

Fixes: #3240
2024-02-05 18:09:59 +01:00
Philip Withnall
f2814e36ef Merge branch 'th/gdataset-comment' into 'main'
[th/gdataset-comment] gdataset: add code comment to g_datalist_get_data()

See merge request GNOME/glib!3879
2024-02-05 16:52:00 +00:00
Thomas Haller
10d4351ec9 gdataset: add code comment to g_datalist_get_data()
It's not obvious why we wouldn't use g_quark_try_string(). Add a code
comment that this is intentional and a reference for how to find out
more.

Also, fix typo in another code comment.
2024-02-05 16:49:10 +01:00
Philip Withnall
c8132fdf78 girepository: Rename gi_arg_info_load_type() to gi_arg_info_load_type_info()
So that it matches `gi_arg_info_get_type_info()`. We can’t use
`gi_arg_info_get_type()` because that collides with the `GType` getter
for the type.

Spotted by Philip Chimento.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

Fixes: #3243
2024-02-05 15:13:46 +00:00
Philip Withnall
bcc22d48b0 Merge branch 'th/datalist-shrink' into 'main'
[th/datalist-shrink] shrink the interal buffer of `GData`

See merge request GNOME/glib!3873
2024-02-05 15:10:33 +00:00
Thomas Haller
29314690c7 gdatalist: shrink the buffer when it becomes 75% empty
The amount of used memory should stay in relation to the number of
entries we have. If we delete most (75%) of the entries, let's also
reallocate the buffer down to 50% of its size.

datalist_append() now starts with 2 elements. This works together with
the shrinking. If we only have one entry left, we will shrink the buffer
back to size 2. In general, d->alloc is always a power of two (unless it
overflows after G_MAXUINT32/2, which we assume will never happen).

The previous buffer growth strategy of never shrinking is not
necessarily bad. It has the advantage to not require any checks for
shrinking, and it works well in cases where the amount of data actually
does not shrink (as we'd often expect).

Also, it's questionable what a realloc() to a smaller size really
brings. Is that really gonna help and will the allocator do something
useful?

Anyway. This patch introduces shrinking. The check for whether to shrink
changes from `if (d->len == 0)` to `if (d->len <= d->alloc / 4u)`, which
is probably cheap even if most of the time we don't need to shrink. For
most cases, that's the only change that this patch brings. However, once
we find out that 75% of the buffer are empty, calling realloc() seems a
sensible thing to do.
2024-02-05 13:34:31 +01:00
Philip Withnall
1757365af3 Merge branch 'dbus-codegen-tests' into 'main'
Don't skip dbus-codegen tests on Win32

Evolved from https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3857

See merge request GNOME/glib!3874
2024-02-05 10:18:28 +00:00