We have a common pattern for reference counting in GLib, but we always
implement it with ad hoc code. This is a good chance at trying to
standardise the implementation and make it public, so that other code
using GLib can take advantage of shared behaviour and semantics.
Instead of simply taking an integer variable, we should create type
aliases, to immediately distinguish the reference counting semantics of
the code; we can handle mixing atomic reference counting with a
non-atomic type (and vice versa) by using differently signed values for
the atomic and non-atomic cases.
The gatomicrefcount type is modelled on the Linux kernel refcount_t
type; the grefcount type is added to let single-threaded code bases to
avoid paying the price of atomic memory barriers on reference counting
operations.
It's mostly not used anymore and doesn't do what it says it does.
The docs state that it affects GList, GSList, GNode, GMemChunks, GSignal,
GType n_preallocs and GBSearchArray while:
* GList, GSList and GNode use GSlice and are not affected
* GMemChunks is gone
* GType npreallocs is ignored
It also states that it can be used to force the usage of g_malloc/g_free,
which is handled by G_SLICE=always-malloc now.
The only places where it's used is in signal handling through GBSearchArray
and in GValueArray (deprecated). Since it's unlikely that anyone wants to
reduce allocation sizes just for those cases remove the build option.
ENABLE_GC_FRIENDLY_DEFAULT was supposed to set the default for the gc friendliness
while still allowing to force enable it at runtime with G_DEBUG=gc-friendly.
With commit 943a18b564 (6 years ago) things were changed to always set it
according to the content of G_DEBUG in glib_init(), making the default unused.
Since nobody complained since then just remove the macro and the build option.
Add a test macro that allows comparing two floating point values for
equality within a certain tolerance.
This macro has been independently reimplemented by various projects:
* Clutter
* Graphene
* colord
https://gitlab.gnome.org/GNOME/glib/issues/914
It's a synonym of G_VOLUME_IDENTIFIER_KIND_UNIX_DEVICE.
It doesn't change anything except not feeling dirty from using a wrongly
prefixed constant for the object type.
See: #182
GVfsUDisks2VolumeMonitor handles x-gvfs-hide/x-gvfs-show mount options
used to overwrite our heuristics whether the mount should be shown, or
hidden. Unfortunately, it works currently only for mounts with
corresponding fstab entries, because the options are read over
g_unix_mount_point_get_options. Let's introduce g_unix_mount_get_options
to allow reading of the options for all sort of mounts (e.g. created
over pam_mount, or manually mounted).
(Minor fixes to the documentation by Philip Withnall
<withnall@endlessm.com>.)
https://bugzilla.gnome.org/show_bug.cgi?id=668132
This is a combination of g_hash_table_lookup_extended() and
g_hash_table_steal(), so that users can combine the two to reduce code
and eliminate a pointless second hash table lookup by
g_hash_table_steal().
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795302
Getting the canonical filename is a relatively common
operation when dealing with symbolic links.
This commit exposes GLocalFile's implementation of a
filename canonicalizer function, with a few additions
to make it more useful for consumers of it.
Instead of always assuming g_get_current_dir(), the
exposed function allows passing it as an additional
parameter.
This will be used to fix the GTimeZone code to retrieve
the local timezone from a zoneinfo symlink.
(Tweaked by Philip Withnall <withnall@endlessm.com> to drop g_autofree
usage and add some additional tests.)
https://bugzilla.gnome.org/show_bug.cgi?id=111848
For a long time we've had it as 'common knowledge' that criticals are
for programmer errors and warnings are for external errors, but we've
never documented that. Do so.
(Modified by Philip Withnall <withnall@endlessm.com> to apply cleanly to
master; rearranged to fit in with current master documentation.)
https://bugzilla.gnome.org/show_bug.cgi?id=741049
This is a non-trivial accessor which gets the identifier string used to
create the GTimeZone — unless the string passed to g_time_zone_new() was
invalid, in which case the identifier will be `UTC`.
Implementing this required reworking how timezone information was loaded
so that the tz->name is always set at the same time as tz->t_info, so
they are in sync. Previously, the tz->name was unconditionally set to
whatever was passed to g_time_zone_new(), and then not updated if the
tz->t_info was eventually set to the default UTC information.
This includes tests for the new g_time_zone_get_identifier() API, and
for the g_date_time_get_timezone() API added in the previous commit.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=795165
This is a bit awkward. A more elegant solution would have
ignored *all* headers and then *un-ignored* some of them
if some conditions were met.
Sadly, we cannot really ignore all headers and then "unignore"
them: that's not how arrays in Meson work.
https://bugzilla.gnome.org/show_bug.cgi?id=794557
Similarly to how glib-compile-resources can call xmllint to eliminate
whitespace in XML files to reduce their size inside a GResource, we can
use json-glib-format to achieve the same result.
The mechanism for using json-glib-format is the same, with a separate
environment variable if we want to direct glib-compile-resources to a
version of json-glib-format that is not the one in the PATH.
https://bugzilla.gnome.org/show_bug.cgi?id=794284
g_key_file_get_locale_string() returns a translated string from the
keyfile. In some cases, it may be useful to know the locale that that
string came from.
Add a new API, g_key_file_get_locale_for_key(), that returns the locale
of the string.
Include tests.
(Modified by Philip Withnall to rename the API and fix some minor review
issues. Squash in a separate test case commit.)
https://bugzilla.gnome.org/show_bug.cgi?id=605700
Recent changes has extended the functionality of `gdbus-codegen`
by implementing new options.
This patch extends the documentation including the behaviour of
the new options along the old ones.
(Wording tweaked by Philip Withnall before pushing.)
https://bugzilla.gnome.org/show_bug.cgi?id=791015
The tool was ported to Python, but we should not mention the programming
language used, in case we port it to some other language in the distant
future.
This is a variant of g_file_get_path() which returns a const string to
the caller, rather than transferring ownership.
I've been carrying `gs_file_get_path_cached()` in libgsystem and it
has seen a lot of use in the ostree and flatpak codebases. There are
probably others too.
I think language bindings like Python/Gjs could also use this to avoid
an extra malloc (i.e. we could transparently replace
`g_file_get_path()` with `g_file_peek_path()`.
(Originally by Colin Walters. Tweaked by Philip Withnall to update to
2.56, change the function name and drop the locking.)
https://bugzilla.gnome.org/show_bug.cgi?id=767976
gdbus-codegen's options only allow a simultaneous header and source
code generation.
A `--header` and `--body` options have been added along with the
`--output` option which allow separate C header and code
generation.
These options cannot be used in addition to the old options such
as `--generate-c-code`, `--generate-docbook` or
`--output-directory`.
These options have also been added to gdbus-codegen's documentation.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
The #pragma once is widely supported preprocessor directive that can
be used instead of include guards.
This adds support for using optionally this directive instead of
include guards.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
The optparse module is deprecated since version 2.7 and the
development continues with the argparse.
The code has been moved from optparse to argparse when parsing
command-line options. This has also led to the deprecation of the
`--xml-files`, and positional arguments should be used instead.
https://bugzilla.gnome.org/show_bug.cgi?id=791015
Custom desktop file fields may be translated, but there is currently
no non-hacky way to look up the localized value; fill get gap with
a small wrapper around g_key_file_get_locale_string().
https://bugzilla.gnome.org/show_bug.cgi?id=779413
Hopefully discouraging people from overriding that and building with it
enabled.
Pro-tip: GLib will break.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=791622
In order to enrich information displayed by GApplication command line
handling when --help is invoked, 3 new methods are proposed:
. g_application_set_option_context_parameter_string
. g_application_set_option_context_summary
. g_application_set_option_context_description
Those methods interact with the GApplication's internal GOptionContext
which is created for command line parsing in g_application_parse_command_line.
(please refer to the GOptionContext class for more information about option
context, parameter string, summary and description.)
To illustrate the 3 methods, an example is provided:
. gapplication-example-cmdline4.c
Weak-pointers are currently lacking g_set_object() & g_clear_object()
helpers equivalent. New functions (and macros, both are provided) are
convenient in many case, especially for the property's notify-on-set
pattern:
if (g_set_weak_pointer (...))
g_object_notify (...)
Inspired by Christian Hergert's original implementation for
gnome-builder.
https://bugzilla.gnome.org/show_bug.cgi?id=749527
Putting them in the same section causes gtk-doc to mix their properties
together in a single listing, which is confusing.
Since having them in a single section doesn’t really add anything, split
them out to one class per section.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=791334
The example code defines an interface with three methods. The preceding text
reads 'This interface defines two methods'. This appears to be because the
example code was changed without updating the surrounding text.
https://bugzilla.gnome.org/show_bug.cgi?id=790830
This adds g_file_load_bytes() to make it more convenient to
load the contents of a GFile as GBytes.
It includes a special casing for gresources to increase the
chances that the GBytes directly references the embedded data
instead of copying to the heap.
https://bugzilla.gnome.org/show_bug.cgi?id=790272
It's a very common pattern to see code that looks like this in
dispose() or finalize() implementations:
if (priv->source_id > 0)
{
g_source_remove (priv->source_id);
priv->source_id = 0;
}
This API allows to accomplish the same goal with a single line:
g_clear_handle_id (&priv->source_id, (GClearHandleFunc) g_source_remove);
Thanks to Emmanuele Bassi <ebassi@gnome.org> for making the patch
generic.
https://bugzilla.gnome.org/show_bug.cgi?id=788489
This is needed by gnome-control-center and gnome-settings-daemon; it
makes existing checks from gunixmounts.c public.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=788927
It adds support for source-specific multicast IGMPv3.
Allow receiving data only from a specified source when joining
a multicast group.
g_socket_join_multicast_group_ssm can be called multiple times
to allow receiving data from more than one source.
Support IPv4 and IPv6.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=740791
We should show how to properly use glib-mkenums with Autotools, in
the hope that fewer people will be caught cargo-culting rules written
in the late '90s.
https://bugzilla.gnome.org/show_bug.cgi?id=788948
We should show how to properly use glib-genmarshal with Autotools, in
the hope that fewer people will be caught cargo-culting rules written
in the late '90s.
https://bugzilla.gnome.org/show_bug.cgi?id=788948
This supports a subset of ISO 8601 since that is a commonly used standard for
storing date and time information. We support only ISO 8601 strings that contain
full date and time information as this would otherwise not map to GDateTime.
This subset includes all of RFC 3339 which is commonly used on the Internet and
the week and ordinal day formats as these are supported in the GDateTime APIs.
(Minor modification by Philip Withnall to change API versions from 2.54
to 2.56.)
https://bugzilla.gnome.org/show_bug.cgi?id=753459
In the Dictionary section of the gvariant-format-strings documentation
only how to construct a dictionary is shown.
Add a small example showing how to extract data from a nested dictionary
and specifically from a GVariant of type "(oa{sa{sv})". Move also the
Dictionary section after the GVariant * section for the sake of clarity.
https://bugzilla.gnome.org/show_bug.cgi?id=786737
By default, only build man pages and gtk-doc if the build-deps were
found. To force-enable, pass -Dwith-docs=yes and -Dwith-man=yes.
Also use a foreach loop for man pages instead of listing them all
manually
We're in the process or rewriting other tools in Python to reduce the
number of dependencies of GLib.
Additionally, making glib-genmarshal a Python script reduces the
complexity when cross-compiling, as we don't need a native build to
generate the marshallers.
https://bugzilla.gnome.org/show_bug.cgi?id=784528
Very often when we want to convert a string to number, we assume that
the string contains only a number. We have g_ascii_strto* family of
functions to do the conversion but they are awkward to use - one has
to check if errno is zero, end_ptr is not NULL and *end_ptr points to
the terminating nul and then do the bounds checking. Many projects
need this kind of functionality, so it gets reimplemented all the
time.
This commit adds some replacement functions that convert a string to a
signed or unsigned number that also follows the usual way of error
reporting - returning FALSE on failure and filling an error output
parameter.
Partially based on telepathy-glib’s tp_g_ptr_array_contains(), and a
patch by Xavier Claessens <xavier.claessens@collabora.co.uk>.
Test cases included.
https://bugzilla.gnome.org/show_bug.cgi?id=698064
It's unnecessary, and only adds visual noise; we have been fairly
inconsistent in the past, but the semi-colon-less version clearly
dominates in the code base.
https://bugzilla.gnome.org/show_bug.cgi?id=669355
This is effectively the mc-wait-for-name tool from
telepathy-mission-control; moving it in to gdbus-tool will make it more
widely useful without making people depend on telepathy-mission-control
for no other reason. The code here is reimplemented from scratch to use
GDBus.
It blocks until the specified well-known name is owned by some process
on the bus (which can be the session, system, or any other bus). By
passing --activate, the same (or a different) name can be auto-started
on the bus first.
A timeout can be specified to ensure the process doesn’t block forever.
https://bugzilla.gnome.org/show_bug.cgi?id=745971
Add filesystem attribute to propagate time, when the metadata for the file
in "recent:///" was last changed. This attribute is needed for sorting
recent backend files in client applications.
https://bugzilla.gnome.org/show_bug.cgi?id=777507
Many UUID users will just need a random string, which can be generated
simply by calling the function g_uuid_string_random().
Based on original patch by
Marc-André Lureau <marcandre.lureau@gmail.com>
https://bugzilla.gnome.org/show_bug.cgi?id=639078
There have been some improvements to the tool recently, but it's hard to
know if those are available on a given system unless the tool provides a
--version commandline option.
https://bugzilla.gnome.org/show_bug.cgi?id=772269
Add --dependency-file=foo.d option to generate a gcc -M -MF style
dependency file for other build tools. The current output of
--generate-dependencies is only useful for use directly in Makefile
rules, but can't be used in other build systems like that.
The generated dependency file looks like this:
$ glib-compile-resources --sourcedir= test.gresource.xml --dependency-file=-
test.gresource.xml: test1.txt test2.txt test2.txt
test1.txt:
test2.txt:
test2.txt:
Unlike --generate-dependencies, the --dependency-file option can be
used together with other --generate options to create dependencies
as side-effect of generating sources.
Based on a patch by Tim-Philipp Müller in
https://bugzilla.gnome.org/show_bug.cgi?id=745754
The changes in this patch, compared to his are to always return
the hash table with file information from parse_resource_file, so
we can use it for dependency output, regardless if generate_dependencies
was TRUE or not.
Add --dependency-file=foo.d option to generate a gcc -M -MF style
dependency file for other build tools. The current output of
--generate-dependencies is only useful for use directly in Makefile
rules, but can't be used in other build systems like that.
The generated dependency file looks like this:
$ glib-compile-resources --sourcedir= test.gresource.xml --dependency-file=-
test.gresource.xml: test1.txt test2.txt test2.txt
test1.txt:
test2.txt:
test2.txt:
Unlike --generate-dependencies, the --dependency-file option can be
used together with other --generate options to create dependencies
as side-effect of generating sources.
Based on a patch by Tim-Philipp Müller.
https://bugzilla.gnome.org/show_bug.cgi?id=745754
The macro could be used at initialization time to avoid having an
unitialized builder, especially with g_auto variables.
The macro tries to be a bit more type-safe by making sure that the
variant_type parameter is actually "const GVariantType
*". Unfortunately I have no idea how to make it possible to also pass
a "const gchar *" parameter without warning.
https://bugzilla.gnome.org/show_bug.cgi?id=766370
In a vague attempt at ensuring the .stp scripts can be closely
associated with the .so files which they hard-code references to, rename
the scripts so they include the LT version — so that they are the .so
file name plus .stp.
This does not fix the fact that our .stp scripts will not work on
multiarch systems, as they are installed in an architecture-independent
directory (/usr/share/systemtap/tapset). At the moment, it is
recommended that any distribution who package the .stp files should
install them in the architecture-specific subdirectories of this (for
example, /usr/share/systemtap/tapset/x86-64).
A better long-term solution for this is under discussion upstream:
https://sourceware.org/bugzilla/show_bug.cgi?id=20264https://bugzilla.gnome.org/show_bug.cgi?id=662802
Add filesystem attribute to detect remote filesystems in order to
replace hardcoded filesystem types in GtkFileSystem. Set this attribute
also for GLocalFile appropriately.
Bump version to 2.49.3, so that early adopters of new API have a version
number to target.
Add a new API to allow clients to register a custom GFile implementation
handling a particular URI scheme.
This can be useful for tests, but also for cases where a different URI
scheme is desired to be used with another custom GFile backend.
As an additional cleanup, we can use this to register the "resource" URI
scheme too.
Based on a patch by Jasper St. Pierre <jstpierre@mecheye.net>.
https://bugzilla.gnome.org/show_bug.cgi?id=767887
This makes it easier to use GKeyFile from language bindings, and makes
the API more consistent and modern with the new data type available in
GLib.
https://bugzilla.gnome.org/show_bug.cgi?id=767880
Nautilus wants to show entries in the sidebar only for removable devices.
It uses currently sort of conditions to determine which devices should be
shown. Those condition fails in some cases unfortunatelly. Lets provide
g_drive_is_removable() which uses udisks Removable property to determine
which devices should be shown. It should return true for all drives with
removable media, or flash media, or drives on usb and firewire buses.
https://bugzilla.gnome.org/show_bug.cgi?id=765900
This adds a new --c-generate-autocleanup option to gdbus-codegen
which can be used to instruct gdbus-codegen about what autocleanup
definitions to emit.
Doing this unconditionally was found to interfere with existing
code out in the wild.
The new option takes an argument that can be
none, objects or all; to indicate whether to generate no
autocleanup functions, only do it for object types, or do it
for interface types as well. The default is 'objects', which
matches the unconditional behavior of gdbus-codegen on the 2.48
branch.
https://bugzilla.gnome.org/show_bug.cgi?id=763379
Add a new GDtlsConnection interface, plus derived GDtlsClientConnection
and GDtlsServerConnection interfaces, for implementing Datagram TLS
support in glib-networking.
A GDtlsConnection is a GDatagramBased, so may be used as a normal
datagram socket, wrapping all datagrams from a base GDatagramBased in
DTLS segments.
Test cases are included in the implementation in glib-networking.
https://bugzilla.gnome.org/show_bug.cgi?id=752240
This example has been causing on-and-off build breaks for quite some
time. In this case, the code for copying the generated content into the
main docs of GIO is causing problems with srcdir != destdir builds (due
to the files also being copied from the read-only srcdir during
distchecks).
We could probably work around this problem yet again, but since there is
no real benefit to having this content included, so let's remove it.
https://bugzilla.gnome.org/show_bug.cgi?id=734469
Currently the doc is incomplete when builddir!=srcdir
(e.g. debian package) because glibconfig.h is generared from
configure.ac and is thus missing from srcdir. This leads to
missing doc for symbols like G_GINT64_FORMAT.
https://bugzilla.gnome.org/show_bug.cgi?id=734469
Add some helpers for builds-checked unsigned integer arithmetic to GLib.
These will be based on compiler intrinsics where they are available,
falling back to standard manual checks otherwise.
The fallback case needs to be implemented as a function (which we do
inline) because we cannot rely on statement expressions. We also
implement the intrinsics case as an inline in order to avoid people
accidentally writing non-portable code which depends on static
evaluation of the builtin.
For now there is only support for addition and multiplication for guint,
guint64 and gsize. It may make sense to add support for subtraction or
for the signed equivalents of those types in the future if we find a use
for that.
https://bugzilla.gnome.org/show_bug.cgi?id=503096
Change it to a running example of a file viewer application with a file
class and various derived classes and related interfaces. Hopefully the
reader can relate to this a little better than to their maman.
https://bugzilla.gnome.org/show_bug.cgi?id=753935
Add string serialisation functions for GNetworkAddress, GSocketAddress,
GUnixSocketAddress, GInetSocketAddress, GNetworkService and
GSocketConnectable. These are intended for use in debug output, not for
serialisation in network or disc protocols.
They are implemented as a new virtual method on GSocketConnectable:
g_socket_connectable_to_string().
GInetSocketAddress and GUnixSocketAddress now implement
GSocketConnectable directly to implement to_string(). Previously they
implemented it via their abstract parent class, GSocketAddress.
https://bugzilla.gnome.org/show_bug.cgi?id=737116
GDatagramBased is an interface abstracting datagram-based communications
in the style of the Berkeley sockets API. It may be contrasted to (for
example) GIOStream, which supports only streaming I/O.
GDatagramBased allows socket-like communications to be done through any
object, not just a concrete GSocket (which wraps socket()).
This adds the GDatagramBased interface, and implements it in GSocket.
https://bugzilla.gnome.org/show_bug.cgi?id=697907
Remove some outdated references to an old example, and add a row in the
table of steps in object initialization for the GObjectClass.constructed
virtual method.
https://bugzilla.gnome.org/show_bug.cgi?id=754855
Add support for receiving multiple messages with a single system call,
using recvmmsg() if available. Otherwise, fall back to looping over
g_socket_receive_message().
This adds new API, g_socket_receive_messages(), and corresponding unit
tests.
https://bugzilla.gnome.org/show_bug.cgi?id=751924
This complements the GOutputMessage struct. It will shortly be used for
adding a g_socket_receive_messages() function, but needs to be committed
first to allow some internal refactoring of GSocket.
https://bugzilla.gnome.org/show_bug.cgi?id=751924
GListStore already has a g_list_store_insert_sorted function,
which can be used to keep the list sorted according to a fixed
sort function. But if the sort function changes (as e.g. with
sort columns in a list UI), the entire list needs to be
resorted. In that case, you want g_list_store_sort().
https://bugzilla.gnome.org/show_bug.cgi?id=754152
