Roundhouse kick replacing the various (sizeof(foo)/sizeof(foo[0])) with
the ARRAY_SIZE macro from dix.h when possible. A semantic patch for
coccinelle has been used first. Additionally, a few macros have been
inlined as they had only one or two users.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Windows Vista and later have a saner clipboard API where the clipboard
viewer linked list is no longer maintained by applications. Use it
where available.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Some Win32 API types are different fundamental types in the 32-bit and 64-bit
This problem is then further compounded by the fact that whilst both 32-bit
Cygwin and 32-bit MinGW use the ILP32 data model, 64-bit MinGW uses the LLP64
data model, but 64-bit Cygwin uses the LP64 data model.
This makes it impossible to write printf format specifiers which are correct for
all those targets, so we use some macros to provide the correct specifier for
the target.
LPARAM and WPARAM are integer types which can contain a pointer
LPARAM is long in ILP32 and long long in LLP64
WPARAM is unsigned int in ILP32 and unsigned long long in LLP64
Generally, these are just used to passs integer parameters, so for simplicity,
cast to int and use an int-compatible format
In the specific case of WM_CHANGECBCHAIN, they are used to pass HWND, so cast to
that type and print using an appropriate format.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
remainingTime is computed as a long int, so use %ld format specifier
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
HWND derives from HANDLE, a pointer type, so we should use the %p format
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
If we are the clipboard owner when we are shutdown, we recieve a
WM_RENDERALLFORMATS, to render the clipboard, so it's contents will remain
available to other applications. Unfortunately, this is far too late to do
anything useful with, as the server is waiting for the clipboard thread to exit,
and so can't process requests to convert clipboard contents.
Change so we just do nothing on WM_RENDERALLFORMATS. (I'm not convinced that
WM_RENDERALLFORMATS has ever worked usefully, in any case).
(To make this work, I guess we would need to rearrange the way shutdown works
completely: first synchronously stop the clipboard, then stop the X server)
We also then receive a WM_DRAWCLIPBOARD, perhaps telling us that the available
clipboard formats have changed (as ones which haven't been rendered are now
removed), but the clipboard owner is now the system, not us, which we have to
arrange to ignore.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
It seems that the clipboard thread restart mechanism has been broken for a
while, which can be demonstrated using XDMCP with KDM (e.g. to a Kubutunu 12.04
host)
KDM kills all attached clients, including the clipboard integration client,
which restarts, but then exits on WM_QUIT.
Using PostQuitMessage() in WM_DESTROY is unhelpful, as we may not actually be
quitting the thread, if we just destroyed the window because the clipboard
thread is about to retry, because he WM_QUIT message sticks around, and is
noticed the next time we look at the window message queue and confuses us into
thinking we need to quit.
Sending a WM_DESTROY is apparently never correct anyhow, see [1]
So:
1/ Use DestroyWindow() to destroy the clipboard messaging window when cleaning
up for retry or exit in winClipboardProc (the clipboard thread main proc)
2/ Send a special WM_WM_QUIT message in winClipboardWindowDestroy() from the X
server thread when the X server is resetting.
3/ When processing that WM_WM_QUIT message in the clipboard thread, cause the
clipboard window to PostQuitMessage(), which causes the clipboard thread to
exit.
[1] http://blogs.msdn.com/b/oldnewthing/archive/2011/09/26/10216420.aspx
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Sometimes, particularly with large clipboard pastes to Windows, we could end up
waiting for the timeout to expire, rather than pasting the data.
Various changes to improve reliability:
1. Use XFlush() not XSync() in winProcessXEventsTimeout().
It makes no sense to ensure we have received replies to outstanding requests if
we are going to wait for them using select()
2. Add XFlush() to winClipboardProc()
Make sure we have sent any requests before we wait using select()
3. Don't use FD_ISSET() to check which fd is ready
This looks like a Cygwin select() bug in that it sometimes returns 0 with an
empty fd set before the timeout expires, but a fd appears to be ready.
Add select() return value to debug output when we are warning that this has
happened.
4. Drain event queues before entering select()
Unconditionally drain event queues before entering select(). This seems to be
the recommended way of writing select() and X event processing loops.
winClipboardFlushXEvents() checks using XPending(), and
winClipboardFlushWindowsMessageQueue() checks using PeekMessage() so this is
safe against blocking, but means that may not need to enter select() at all
sometimes.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
See http://cygwin.com/ml/cygwin-xfree/2013-07/msg00016.html
It looks like the change in a9aca218f5 had some
unforseen consequences.
If the X11 selection contents are not convertable to COMPOUND_TEXT, UTF8_STRING
or STRING format (for example, if it is an image), after those conversion
attempts have failed, we sit in winProcessXEventsTimeout() until the timeout
expires.
It also seems that maybe gnuplot doesn't respond correctly to this sequence of
conversion requests and doesn't reply to some of them, which also causes us to
sit in winProcessXEventsTimeout() until the timeout expires.
The Windows application which has requested the clipboard contents via
GetClipboardContents() is blocked until we return from WM_RENDERFORMAT, so
sitting waiting for this timeout to expire should be avoided.
So instead, explicitly request conversion to the TARGETS target, choose
the most preferred format, and request conversion to that.
Also: if there is no owned selection, there is nothing to paste, so don't bother
trying to convert it.
v2: Fix compilation with -Werror=declaration-after-statement
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Including any server header might define the macro _XSERVER64 on 64 bit
machines. That macro must _NOT_ be defined for Xlib client code, otherwise bad
things happen. So let's undef that macro if necessary.
Remove server directories from include path to ensure no server includes are
included
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Also removing server headers we might clash with and no longer need. Make
a few adjustments to allow for this change:
- provide a prototype of ErrorF()
- use the MAX() macro provided by sys/param.h, not the max() macro provided by misc.h
- use the X 'Bool' type rather than the unwrapped Windows 'BOOL' type
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Consistently use ErrorF() rather than winErrorFVerb()
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Look up all atoms of interest in clipboard code in winClipboardProc() and pass
them down.
This avoids the need to check serverGeneration to notice when we need to
invalidate cached atom values.
Also consistently use cached atom values everywhere, rather than sometimes just
doing XInternAtom() again.
Remove WIN_LOCAL_PROPERTY as unused now, as we only refer to CYGX_CUT_BUFFER
once and do that directly.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Rename the libwinclipboard internal header from winclipboard.h to internal.h
Put libwinclipboard's public interface into winclipboard.h
This lets winclipboardinit.c partake of that public interface, and all X server
headers without clashes
winInitClipboard() prototype belongs in a server header
v2: Remove duplicate declaration of winClipboardWindowDestroy()
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Move clipboard integration code down to a subdirectory and build as a
convenience library
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
