Sequential integers would be densely packed in the table, leaving the
high-index buckets unused and causing abnormally long probes for many
operations. This was especially noticeable with failed lookups and
when "aging" the table by repeatedly inserting and removing integers
from a narrow range using g_direct_hash() as the hashing function.
The solution is to multiply the hash by a small prime before applying
the modulo. The compiler optimizes this to a few left shifts and adds, so
the constant overhead is small, and the entries will be spread out,
yielding a lower average probe count.
Test a few situations where NULL values for optional out parameters
weren’t being tested. This takes the branch coverage of GHashTable up to
100% (ignoring g_return_if_fail() branches).
Signed-off-by: Philip Withnall <withnall@endlessm.com>
If the given key is not found, clear the orig_key and value arguments to
NULL as well as returning FALSE. Then the caller can unconditionally
check them.
This makes the behaviour of g_hash_table_lookup_extended() consistent
with g_hash_table_steal_extended().
Signed-off-by: Philip Withnall <withnall@endlessm.com>
The behavior of "which" is not standardized by POSIX. Some old
implementations print their error messages to stdout instead of stderr,
and don't return a nonzero exit code when they fail to find the given
program. "command -v" on the other hand is in POSIX (optional in 2004
and required as of 2008).
Remove otherwise-unused variables AUTORECONF and GTKDOCIZE.
It fails because dist-job (correctly) doesn’t build with the code
coverage CFLAGS enabled.
Leave coverage to be generated on master and development branches.
See this pipeline for an example of when it fails:
https://gitlab.gnome.org/GNOME/glib/pipelines/26349
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This is what Autotools does, and it's what all consumers of the
GModule API expect. Without this change, people on macOS upgrading to
a GLib built with Meson will find that their plugins no longer load.
Projects that use Meson and the `g_module_build_path()` API such as
glib-networking should pass `name_suffix:` to `shared_module()` to
ensure that plugins continue to be called libfoo.so on macOS.
New GModule API will eventually be added to address this.
See also:
https://gitlab.gnome.org/GNOME/glib/issues/1413a3d81719fe/meson.build (L108)
This reverts commit 3c1902fcf9.
This was accidentally re-added from an old version of the branch before
!265 was merged. It should not have been re-added.
Rearrange the code so we try version 3 first,
falling back to version 2 and then version 1.
We still do a construct-time check to ensure
that we work with unsupported versions.
Note that this also takes care of setting the
initial property values in the version 1 case.
Version 3 of the network monitor portal interface adds
a CanReach method. Use it to implement can_reach.
The docs state that can_reach will either return TRUE
or set an error. So, set an error of G_IO_ERROR_HOST_UNREACHABLE
when the portal returns FALSE for CanReach.
GSettings XML schema files are installed in a well known directory
under Glib's installation directory: `glib-2.0/schemas`. However,
the Glib installation directory might vary, so the exact location of
the schema files might be unknown.
The information regarding this directory has been added to GIO's
pkg-config file, so it can be checked, and also overrided, by using
the command line utility.
Since we now require a C99 compatible printf and use gnulib on Windows,
we also mark our printf functions as gnu_printf. GCC complains about the
Windows specific I64 specifiers we still write to glibconfig.h with the
autotools build.
To fix this switch all I64(x) to ll(x).
This also makes the glibconfig.h output for those macros match the ones
we get when using meson.
__int64 was the 64bit type for Visual Studio before it added support for
"long long" with VS2013. I think this was used to build glib with mingw and
make the result usable for VS 6.0 which didn't support "long long" (??)
Given that newer MSVC links against a different crt and mixing is not supported
and everything supports "long long" nowadays just remove it.
This is also a cleanup for printf format changes needed for #1497
The goal of this commit is to reduce differences between the autotools and meson build.
With autotools AC_FUNC_ALLOCA was used which defines HAVE_ALLOCA_H, HAVE_ALLOCA,
C_ALLOCA. meson tried to replicate that with has_function() but alloca can be a macro
and and is named _alloca under Windows. Since we require a working alloca anyway
and only need to know if the header exists replace AC_FUNC_ALLOCA with a simple
AC_CHECK_HEADERS.
There is still one user of HAVE_ALLOCA in the embedded gnulib, but since alloca is
always provided through galloca.h just force define HAVE_ALLOCA there and add a comment.
The docs were mentioning alloca as an example for cross compiling. Since that variable no
longer exists now replace it with another one.
The source callback for a GCancellable should have the cancellable itself
as first argument.
This was not the case, and when this code was hit, we were instead trying
to treat the pointer as a CommunicateState reference and thus wrongly
deferencing it, causing a memory error and a crash.
