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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/lib/Xp/XpGetData.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/lib/Xp/XpGetData.c')
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diff --git a/nx-X11/lib/Xp/XpGetData.c b/nx-X11/lib/Xp/XpGetData.c
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+/* $Xorg: XpGetData.c,v 1.4 2000/08/17 19:46:07 cpqbld Exp $ */
+/******************************************************************************
+ ******************************************************************************
+ **
+ ** (c) Copyright 1996 Hewlett-Packard Company
+ ** (c) Copyright 1996 International Business Machines Corp.
+ ** (c) Copyright 1996 Sun Microsystems, Inc.
+ ** (c) Copyright 1996 Novell, Inc.
+ ** (c) Copyright 1996 Digital Equipment Corp.
+ ** (c) Copyright 1996 Fujitsu Limited
+ ** (c) Copyright 1996 Hitachi, Ltd.
+ **
+ ** Permission is hereby granted, free of charge, to any person obtaining a copy
+ ** of this software and associated documentation files (the "Software"), to deal
+ ** in the Software without restriction, including without limitation the rights
+ ** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ ** copies of the Software, and to permit persons to whom the Software is
+ ** furnished to do so, subject to the following conditions:
+ **
+ ** 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
+ ** COPYRIGHT HOLDERS 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 names of the copyright holders shall
+ ** not be used in advertising or otherwise to promote the sale, use or other
+ ** dealings in this Software without prior written authorization from said
+ ** copyright holders.
+ **
+ ******************************************************************************
+ *****************************************************************************/
+/* $XFree86: xc/lib/Xp/XpGetData.c,v 1.4 2001/01/17 19:43:02 dawes Exp $ */
+
+#define NEED_REPLIES
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/extensions/Printstr.h>
+#include <X11/Xlibint.h>
+#include "XpExtUtil.h"
+
+#define MAX_XP_BUFFER_SIZE 32768
+
+/*
+ * At the tail of every async struct of ours is attached the
+ * following "dev private" information needed by our async handler.
+ */
+typedef struct {
+ XPContext context;
+ XPSaveProc save_proc;
+ XPFinishProc finish_proc;
+ XPointer client_data;
+ _XAsyncHandler *async;
+ unsigned long seq; /* sequence # that will trigger handler */
+} _XpState;
+
+
+/*
+ * The following is the handler for async replies from
+ * XpGetDocumentData().
+ */
+static Bool
+_XpGetDocDataHandler(dpy, rep, buf, len, adata)
+ register Display *dpy;
+ register xReply *rep;
+ char *buf;
+ int len;
+ XPointer adata;
+{
+ register _XpState *state;
+ xPrintGetDocumentDataReply replbuf;
+ xPrintGetDocumentDataReply *repl;
+ int dataLen;
+ char *data;
+
+ state = (_XpState *)adata;
+
+ /*
+ * Bypass this handler if the reply is NOT the one we're looking for.
+ */
+ if (dpy->last_request_read != state->seq) {
+ return False;
+ }
+
+ /*
+ * When an error occurs, call the finish_proc and then de-queue
+ * this event handler. Once an error occurs, all bets are off.
+ * The error XPGetDocError is *not* the most descriptive, so the
+ * caller will be encouraged to dig around for the corresponding
+ * generated error.
+ *
+ * Note - Do not confuse the "generated" errors here with
+ * XPGetDocSecondConsumer which is returned in a protocol reply.
+ */
+ if (rep->generic.type == X_Error) {
+ (*state->finish_proc)( (Display *) dpy,
+ (XPContext) state->context,
+ XPGetDocError,
+ (XPointer) state->client_data );
+ DeqAsyncHandler(dpy, state->async);
+ Xfree(state->async);
+ return False;
+ }
+
+ repl = (xPrintGetDocumentDataReply *)
+ _XGetAsyncReply(dpy, (char *)&replbuf, rep, buf, len, 0, False);
+
+ if (repl->dataLen) {
+ /*
+ * Call save_proc in cases where there was document data
+ */
+
+ dataLen = repl->length << 2; /*with pad len*/
+
+ data = (char *) _XAllocTemp( dpy, dataLen );
+
+ _XGetAsyncData( dpy, (char *) data, buf, len,
+ SIZEOF(xPrintGetDocumentDataReply), dataLen, 0);
+
+ (*state->save_proc)( (Display *) dpy,
+ (XPContext) state->context,
+ (unsigned char *) data,
+ (unsigned int) repl->dataLen, /* actual len */
+ (XPointer) state->client_data );
+
+ _XFreeTemp( dpy, (char *) data, dataLen );
+ }
+
+ if (repl->finishedFlag) {
+ /*
+ * Call finish_proc
+ */
+ (*state->finish_proc)( (Display *) dpy,
+ (XPContext) state->context,
+ (XPGetDocStatus) repl->statusCode,
+ (XPointer) state->client_data );
+ /*
+ * De-queue this async handler - we're done.
+ */
+ DeqAsyncHandler( dpy, state->async );
+ Xfree(state->async);
+ }
+
+ return True; /* the reply WAS consumed by this handler */
+}
+
+/******************************************************************************
+ *
+ * XpGetDocumentData()
+ *
+ * ...registers callbacks to be triggered when async protocol replies
+ * come back in response to the origial request.
+ *
+ * Returned Status indicate whether the callbacks will be used
+ * (finish_proc and possibly save_proc), or whether they will
+ * never be used.
+ *
+ */
+Status
+XpGetDocumentData (
+ Display *dpy,
+ XPContext context,
+ XPSaveProc save_proc,
+ XPFinishProc finish_proc,
+ XPointer client_data
+)
+{
+ xPrintGetDocumentDataReq *req;
+ XExtDisplayInfo *info = (XExtDisplayInfo *) xp_find_display (dpy);
+ _XAsyncHandler *async;
+ _XpState *async_state;
+
+
+ if (XpCheckExtInit(dpy, XP_DONT_CHECK) == -1)
+ return(0); /* No such extension */
+
+ async = (_XAsyncHandler *)Xmalloc(sizeof(_XAsyncHandler) +
+ sizeof(_XpState));
+ if (!async)
+ return(0); /* malloc error */
+ async_state = (_XpState *)(async + 1);
+
+ LockDisplay (dpy);
+
+ GetReq(PrintGetDocumentData,req);
+ req->reqType = info->codes->major_opcode;
+ req->printReqType = X_PrintGetDocumentData;
+ req->printContext = context;
+ req->maxBufferSize = MAX_XP_BUFFER_SIZE; /* use as a hint to X server */
+
+ async_state->context = context;
+ async_state->save_proc = save_proc;
+ async_state->finish_proc = finish_proc;
+ async_state->client_data = client_data;
+ async_state->seq = dpy->request;
+ async_state->async = async;
+
+ async->next = dpy->async_handlers;
+ async->handler = _XpGetDocDataHandler;
+ async->data = (XPointer)async_state;
+
+ dpy->async_handlers = async;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return(1); /* success at registering a handler */
+}
+