Add _XGetRequest as substitute for GetReq/GetReqExtra

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/XlibInt.c b/src/XlibInt.c
index 3db151e2..a8f5d084 100644
--- a/src/XlibInt.c
+++ b/src/XlibInt.c
@@ -1956,6 +1956,37 @@ Screen *_XScreenOfWindow(Display *dpy, Window w)
 }
 
 
+/*
+ * WARNING: This implementation's pre-conditions and post-conditions
+ * must remain compatible with the old macro-based implementations of
+ * GetReq, GetReqExtra, GetResReq, and GetEmptyReq. The portions of the
+ * Display structure affected by those macros are part of libX11's
+ * ABI.
+ */
+void *_XGetRequest(Display *dpy, CARD8 type, size_t len)
+{
+    xReq *req;
+
+    WORD64ALIGN
+
+    if (dpy->bufptr + len > dpy->bufmax)
+	_XFlush(dpy);
+
+    if (len % 4)
+	fprintf(stderr,
+		"Xlib: request %d length %zd not a multiple of 4.\n",
+		type, len);
+
+    dpy->last_req = dpy->bufptr;
+
+    req = (xReq*)dpy->bufptr;
+    req->reqType = type;
+    req->length = len / 4;
+    dpy->bufptr += len;
+    dpy->request++;
+    return req;
+}
+
 #if defined(WIN32)
 
 /*