This variable, which is the cause of much grief, exists for two reasons:
- ensuring the the wakeup pipe doesn't fill up
- preventing the first poll() after adding a source from waking up
immediately
The first point is no longer an issue with GWakeup.
The second point is addressed by using different logic: we only signal a
wakeup in the case that the context is currently acquired by a thread
that is not us.
As an added bonus, we can now implement g_main_context_wakeup() without
taking a lock.
https://bugzilla.gnome.org/show_bug.cgi?id=583511https://bugzilla.gnome.org/show_bug.cgi?id=320888
The boolean values to be returned by a GSourceFunc are always ambiguous,
and even in case of experienced developers then can lead to confusion.
The Perl bindings for GLib have two simple constants, mapping to TRUE
and FALSE, that make the return values less confusing: G_SOURCE_CONTINUE
and G_SOURCE_REMOVE respectively.
https://bugzilla.gnome.org/show_bug.cgi?id=631413
Remove the explicit thread initialisation functions for g_get_charset(),
g_get_filename_charsets() and g_get_language_names().
Add a lock around one remaining case of access to libcharset (the other
2 cases already have the lock).
Do a proper g_once_init_enter() style initialisation for the GLib
gettext functions.
https://bugzilla.gnome.org/show_bug.cgi?id=658683
Historically we've added random symbols to the public API with warnings
that they're private; examples are:
glib_gettext(), glib_pgettext()
g_thread_functions_for_glib_use, g_thread_use_default_impl, etc.
And we almost added "GWakeup" to public API just to share between glib and
gio.
This new glib__private__() API exports a hidden vtable, and adds a macro
GLIB_PRIVATE_CALL() that makes it generally convenient to use.
This adds an extremely tiny cost for the double indirection; but it has
the benefit that we don't need to either:
1) compile the code into both glib and gio (like GWakeup), with the
inefficiency that implies.
2) Export a "do not use this" symbol; the serious problem with this is
that someone CAN use it pretty easily. Particularly if we document
it. It's far, far harder to peek into a structure without a public
header file.
https://bugzilla.gnome.org/show_bug.cgi?id=657992
Since GMainLoop is now purely monotonic, it really doesn't make sense to
cache the wallclock time just for the sake of making a deprecated call
more efficient.
The first time this is called, this creates a GMainContext * and a
thread to run it. Future calls return the same. There are a lot of
places that we could use this in GLib.
configure.ac defined G_THREAD_SOURCE and gthread-impl would #include it.
Instead, since we only have two thread implementations now, and since we
always use the Windows one only on Windows, move the logic to the
Makefile, predicated on 'if OS_WIN32'. Then have the chosen backend do
the #include "gthread-impl.c" from there.
Remove the G_THREAD_SOURCE define from configure.ac.
The translation of GLib priorities into the thread priorities of
different operating systems belongs in the implementation -- not
half-way in the front end.
g_thread_gettime() is an undocumented public function pointer that
points to a function that returns the monotonic time in nanoseconds.
g_get_monotonic_time() does the same in microseconds, so it can be used
instead.
GLib had one internal user in GFileMonitor that only cared about
millisecond accuracy; it has been ported to g_get_monotonic_time().
In particular, remove the libasyncns import, which was only used by
GUnixResolver, which is only used when threads are not available.
Likewise remove GWin32Resolver, and the hacky broken non-threaded
parts of GIOScheduler.
https://bugzilla.gnome.org/show_bug.cgi?id=616754
G_THREADS_ENABLED still exists, but is always defined. It is still
possible to use libglib without threads, but gobject (and everything
above it) is now guaranteed to be using threads (as, in fact, it was
before, since it was accidentally impossible to compile with
--disable-threads).
https://bugzilla.gnome.org/show_bug.cgi?id=616754
Non-technical users won't know that "stating" refers to stat(2), so we
just use "error when getting information" now.
Signed-off-by: Federico Mena Quintero <federico@gnome.org>
