If a GInputStream does not provide a read_async() implementation, but
does implement GPollableInputStream, then instead of doing
read-synchronously-in-a-thread, just use
g_pollable_input_stream_read_nonblocking() and
g_pollable_input_stream_create_source() to implement an async read in
the same thread. Similarly for GOutputStream.
Remove a bunch of existing read_async()/write_async() implementations
that are basically equivalent to the new fallback method.
https://bugzilla.gnome.org/show_bug.cgi?id=673997
Otherwise we get criticals a'la
GLib-GIO-CRITICAL **: g_cancellable_release_fd: assertion `cancellable->priv->fd_refcount > 0' failed
when reading/writing to certain kinds of file descriptors.
Patch reviewed by Dan Winship on IRC.
Signed-off-by: David Zeuthen <davidz@redhat.com>
Previously, if you created a GUnixInputStream or GUnixOutputStream
from a non-blocking file descriptor, it might sometimes return
G_IO_ERROR_WOULD_BLOCK from g_input_stream_read/g_output_stream_write,
which is wrong. Fix that. (Use the GPollableInput/OutputStream methods
if you want non-blocking I/O.)
Also, add a test for this to gio/tests/unix-streams.
Also, fix the GError messages to say "Error reading from file
descriptor", etc instead of "Error reading from unix" (which was
presumably from a bad search and replace job).
https://bugzilla.gnome.org/show_bug.cgi?id=626866
If the fd is not a pipe or socket, fall back to using threads to do
async I/O rather than poll, since poll doesn't work the way you want
for ordinary files.
https://bugzilla.gnome.org/show_bug.cgi?id=606913
When interfacing with APIs that expect unix-style async I/O, it is
useful to be able to tell in advance whether a read/write is going to
block. This adds new interfaces GPollableInputStream and
GPollableOutputStream that can be implemented by a GInputStream or
GOutputStream to add _is_readable/_is_writable, _create_source, and
_read_nonblocking/_write_nonblocking methods.
Also, implement for GUnixInput/OutputStream and
GSocketInput/OutputStream
https://bugzilla.gnome.org/show_bug.cgi?id=634241
GFile allows for the possibility that external implementations may not
support thread-default contexts yet, via
g_file_supports_thread_contexts(). GVolumeMonitor is not yet
thread-default-context aware.
Add a test program to verify that basic gio async ops work correctly
in non-default contexts.
http://bugzilla.gnome.org/show_bug.cgi?id=579984
* gio.symbols:
* gunixinputstream.[hc]:
* gunixoutputstream.[hc]: Add "fd" and "close-fd" properties
including getters and setters. Patch by Maciej Piechotka
svn path=/trunk/; revision=7735
2008-10-09 Alexander Larsson <alexl@redhat.com>
* gunixinputstream.c (g_unix_input_stream_read):
Actually return -1 in case of cancelled, not old res value.
svn path=/trunk/; revision=7583
Bug 509446 - portable blocking gio cancellation
* gcancellable.c (g_cancellable_make_pollfd): New method to make a
GPollFD for a cancellable (which is slightly more complicated on
Windows than Unix).
* gunixinputstream.c (g_unix_input_stream_read):
* gunixoutputstream.c (g_unix_output_stream_write): Use
g_cancellable_make_pollfd() and g_poll() rather than using poll()
directly.
* tests/unix-streams.c: test of GUnixInputStream,
GUnixOutputStream, and GCancellable.
svn path=/trunk/; revision=7553
2008-06-16 Michael Natterer <mitch@imendio.com>
* *.c: chain up unconditionally in finalize() and dispose(). Also
don't dereference these function pointers when calling them since
that has no meaning at all.
svn path=/trunk/; revision=7048
2007-12-10 15:08:59 Tim Janik <timj@imendio.com>
* let g_warn_if_fail replace g_assert as discussed here:
http://mail.gnome.org/archives/gtk-devel-list/2007-October/msg00089.html
* fix bug #502498: Test framework assertion failures should follow
gcc error format.
* gmessages.h, gmessages.c: deprecated g_assert_warning() which is
unused now. removed g_assert*() definitions whcih are provided by
gtestutils.h now. added g_warn_if_reached() and g_warn_if_fail()
which are recommended as g_assert/g_assert_not_reached replacements
for non-test programs.
added g_warn_message() to implement g_warn_*() macros.
use emacs-next-error friendly formatting for file:line: for warnings.
* gtestutils.h, gtestutils.c: use emacs-next-error friendly formatting.
implement g_assert_not_reached() with g_assertion_message() and
g_assert() in terms of g_assertion_message_expr() so we'll be able to
provide assertion messages in test logs.
* gkeyfile.c, gbookmarkfile.c: changed g_assert*() to g_warn_if_fail()
or g_return_if_fail() where suitable.
* gio/: changed g_assert to g_warn_if_fail.
svn path=/trunk/; revision=6086
* gappinfo.c:
Fixes unknown meaning in GAppLaunchContext docs.
* gfile.c:
Clarify asynchronous ops.
* gfileattribute.c:
Fix entity tag docs.
* gicon.c:
* gthemedicon.c:
Provides missing gtk-doc section, fixes API docs slighly.
* gsimpleasyncresult.c:
Fill in missing info in docs.
* gunixinputstream.c:
* gunixoutputstream.c:
Be more expressive in short description.
* gunixvolume.c:
Remove gtk-doc stubs for non-public API.
svn path=/trunk/; revision=5994
2007-11-27 Alexander Larsson <alexl@redhat.com>
* Makefile.am:
* gsocketinputstream.[ch]: Removed.
* gsocketoutputstream.[ch]: Removed.
* gunixinputstream.[ch]: Added.
* gunixoutputstream.[ch]: Added.
Renamed GSocket*Stream to GUnix*Stream and made
it unix-only, since its not really only for sockets
and it only works on unix (but is highly useful there).
svn path=/trunk/; revision=5956
