libX11 1.7.0
switch to using the autosetup rpm macro
This commit is contained in:
Peter Hutterer
parent
6ab8593d2f
commit
1183c08e2a
@ -1,109 +0,0 @@
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diff --git a/src/Xxcbint.h b/src/Xxcbint.h
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index 4ef13d2f..d8293259 100644
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--- a/src/Xxcbint.h
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+++ b/src/Xxcbint.h
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@@ -27,6 +27,7 @@ typedef struct _X11XCBPrivate {
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PendingRequest *pending_requests;
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PendingRequest *pending_requests_tail;
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xcb_generic_event_t *next_event;
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+ void *next_response;
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char *real_bufmax;
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char *reply_data;
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int reply_length;
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diff --git a/src/xcb_io.c b/src/xcb_io.c
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index 0bd1fdf9..4be75408 100644
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--- a/src/xcb_io.c
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+++ b/src/xcb_io.c
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@@ -282,22 +282,83 @@ static xcb_generic_reply_t *poll_for_event(Display *dpy, Bool queued_only)
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static xcb_generic_reply_t *poll_for_response(Display *dpy)
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{
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void *response;
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- xcb_generic_error_t *error;
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+ xcb_generic_reply_t *event;
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PendingRequest *req;
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- while(!(response = poll_for_event(dpy, False)) &&
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- (req = dpy->xcb->pending_requests) &&
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- !req->reply_waiter)
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+
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+ while(1)
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{
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+ xcb_generic_error_t *error = NULL;
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uint64_t request;
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+ Bool poll_queued_only = dpy->xcb->next_response != NULL;
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- if(!xcb_poll_for_reply64(dpy->xcb->connection, req->sequence,
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- &response, &error)) {
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- /* xcb_poll_for_reply64 may have read events even if
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- * there is no reply. */
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- response = poll_for_event(dpy, True);
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+ /* Step 1: is there an event in our queue before the next
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+ * reply/error? Return that first.
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+ *
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+ * If we don't have a reply/error saved from an earlier
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+ * invocation we check incoming events too, otherwise only
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+ * the ones already queued.
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+ */
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+ response = poll_for_event(dpy, poll_queued_only);
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+ if(response)
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break;
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+
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+ /* Step 2:
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+ * Response is NULL, i.e. we have no events.
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+ * If we are not waiting for a reply or some other thread
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+ * had dibs on the next reply, exit.
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+ */
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+ req = dpy->xcb->pending_requests;
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+ if(!req || req->reply_waiter)
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+ break;
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+
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+ /* Step 3:
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+ * We have some response (error or reply) related to req
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+ * saved from an earlier invocation of this function. Let's
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+ * use that one.
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+ */
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+ if(dpy->xcb->next_response)
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+ {
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+ if (((xcb_generic_reply_t*)dpy->xcb->next_response)->response_type == X_Error)
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+ {
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+ error = dpy->xcb->next_response;
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+ response = NULL;
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+ }
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+ else
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+ {
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+ response = dpy->xcb->next_response;
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+ error = NULL;
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+ }
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+ dpy->xcb->next_response = NULL;
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+ }
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+ else
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+ {
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+ /* Step 4: pull down the next response from the wire. This
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+ * should be the 99% case.
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+ * xcb_poll_for_reply64() may also pull down events that
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+ * happened before the reply.
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+ */
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+ if(!xcb_poll_for_reply64(dpy->xcb->connection, req->sequence,
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+ &response, &error)) {
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+ /* if there is no reply/error, xcb_poll_for_reply64
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+ * may have read events. Return that. */
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+ response = poll_for_event(dpy, True);
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+ break;
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+ }
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+
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+ /* Step 5: we have a new response, but we may also have some
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+ * events that happened before that response. Return those
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+ * first and save our reply/error for the next invocation.
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+ */
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+ event = poll_for_event(dpy, True);
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+ if(event)
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+ {
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+ dpy->xcb->next_response = error ? error : response;
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+ response = event;
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+ break;
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+ }
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}
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+ /* Step 6: actually handle the reply/error now... */
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request = X_DPY_GET_REQUEST(dpy);
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if(XLIB_SEQUENCE_COMPARE(req->sequence, >, request))
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{
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16
libX11.spec
16
libX11.spec
@ -4,8 +4,8 @@
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Summary: Core X11 protocol client library
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Name: libX11
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Version: 1.6.12
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Release: 3%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
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Version: 1.7.0
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Release: 1%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
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License: MIT
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URL: http://www.x.org
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@ -18,8 +18,6 @@ Source0: https://xorg.freedesktop.org/archive/individual/lib/%{name}-%{version}.
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%endif
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Patch2: dont-forward-keycode-0.patch
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# diff from https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/53
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Patch3: libX11-race-condition.patch
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BuildRequires: make
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BuildRequires: xorg-x11-util-macros >= 1.11
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@ -57,9 +55,7 @@ Conflicts: %{name} < %{version}-%{release}
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libX11/libxcb interoperability library
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%prep
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%setup -q -n %{tarball}-%{?gitdate:%{gitdate}}%{!?gitdate:%{version}}
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%patch2 -p1 -b .dont-forward-keycode-0
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%patch3 -p1 -b .race-condition
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%autosetup -p1 -n %{tarball}-%{?gitdate:%{gitdate}}%{!?gitdate:%{version}}
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%build
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autoreconf -v --install --force
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@ -90,7 +86,7 @@ make %{?_smp_mflags} check
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%files
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%{_libdir}/libX11.so.6
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%{_libdir}/libX11.so.6.3.0
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%{_libdir}/libX11.so.6.4.0
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%files xcb
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%{_libdir}/libX11-xcb.so.1
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@ -125,6 +121,10 @@ make %{?_smp_mflags} check
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%{_mandir}/man5/*.5*
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%changelog
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* Tue Dec 01 2020 Peter Hutterer <peter.hutterer@redhat.com> 1.7.0-1
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- libX11 1.7.0
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- switch to using the autosetup rpm macro
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* Mon Nov 09 2020 Peter Hutterer <peter.hutterer@redhat.com> 1.6.12-3
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- Fix a race-condition in poll_for_response (#1758384)
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