From c350873c7c977efe5210484f04160be45f84ba7e Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Fri, 21 Jul 2017 12:31:09 +0200 Subject: Convert nx-X11/lib/ build flow from imake to autotools. --- nx-X11/lib/src/IfEvent.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 nx-X11/lib/src/IfEvent.c (limited to 'nx-X11/lib/src/IfEvent.c') diff --git a/nx-X11/lib/src/IfEvent.c b/nx-X11/lib/src/IfEvent.c new file mode 100644 index 000000000..1a5eef7ce --- /dev/null +++ b/nx-X11/lib/src/IfEvent.c @@ -0,0 +1,79 @@ +/* + +Copyright 1986, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ + +#ifdef HAVE_CONFIG_H +#include +#endif +#include "Xlibint.h" + +/* + * Flush output and (wait for and) return the next event matching the + * predicate in the queue. + */ + +int +XIfEvent ( + register Display *dpy, + register XEvent *event, + Bool (*predicate)( + Display* /* display */, + XEvent* /* event */, + char* /* arg */ + ), /* function to call */ + char *arg) +{ + register _XQEvent *qelt, *prev; + unsigned long qe_serial = 0; + + LockDisplay(dpy); + prev = NULL; + while (1) { + for (qelt = prev ? prev->next : dpy->head; + qelt; + prev = qelt, qelt = qelt->next) { + if(qelt->qserial_num > qe_serial + && (*predicate)(dpy, &qelt->event, arg)) { + *event = qelt->event; + _XDeq(dpy, prev, qelt); + _XStoreEventCookie(dpy, event); + UnlockDisplay(dpy); + return 0; + } + } + if (prev) + qe_serial = prev->qserial_num; + _XReadEvents(dpy); + if (prev && prev->qserial_num != qe_serial) + /* another thread has snatched this event */ + prev = NULL; +#ifdef NX_TRANS_SOCKET + if (_XGetIOError(dpy)) { + UnlockDisplay(dpy); + return 0; + } +#endif + } +} -- cgit v1.2.3