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Diffstat (limited to 'include/extnsionst.h')
| -rw-r--r-- | include/extnsionst.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/include/extnsionst.h b/include/extnsionst.h new file mode 100644 index 000000000..6bb52767d --- /dev/null +++ b/include/extnsionst.h @@ -0,0 +1,174 @@ +/* $Xorg: extnsionst.h,v 1.4 2001/02/09 02:05:15 xorgcvs Exp $ */ +/*********************************************************** + +Copyright 1987, 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. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ +#ifndef EXTENSIONSTRUCT_H +#define EXTENSIONSTRUCT_H + +#include "misc.h" +#include "screenint.h" +#include "extension.h" +#include "gc.h" + +typedef struct _ExtensionEntry { + int index; + void (* CloseDown)( /* called at server shutdown */ +#if NeedNestedPrototypes + struct _ExtensionEntry * /* extension */ +#endif +); + char *name; /* extension name */ + int base; /* base request number */ + int eventBase; + int eventLast; + int errorBase; + int errorLast; + int num_aliases; + char **aliases; + pointer extPrivate; + unsigned short (* MinorOpcode)( /* called for errors */ +#if NeedNestedPrototypes + ClientPtr /* client */ +#endif +); +#ifdef XCSECURITY + Bool secure; /* extension visible to untrusted clients? */ +#endif +} ExtensionEntry; + +/* any attempt to declare the types of the parameters to the functions + * in EventSwapVector fails. The functions take pointers to two events, + * but the exact event types that are declared vary from one function + * to another. You can't even put void *, void * (the ibm compiler + * complains, anyway). + */ +extern void (* EventSwapVector[128]) (); + +typedef void (* ExtensionLookupProc)(/*args indeterminate*/); + +typedef struct _ProcEntry { + char *name; + ExtensionLookupProc proc; +} ProcEntryRec, *ProcEntryPtr; + +typedef struct _ScreenProcEntry { + int num; + ProcEntryPtr procList; +} ScreenProcEntry; + +#define SetGCVector(pGC, VectorElement, NewRoutineAddress, Atom) \ + pGC->VectorElement = NewRoutineAddress; + +#define GetGCValue(pGC, GCElement) (pGC->GCElement) + + +extern ExtensionEntry *AddExtension( +#if NeedFunctionPrototypes + char* /*name*/, + int /*NumEvents*/, + int /*NumErrors*/, + int (* /*MainProc*/)( +#if NeedNestedPrototypes + ClientPtr /*client*/ +#endif +), + int (* /*SwappedMainProc*/)( +#if NeedNestedPrototypes + ClientPtr /*client*/ +#endif +), + void (* /*CloseDownProc*/)( +#if NeedNestedPrototypes + ExtensionEntry * /*extension*/ +#endif +), + unsigned short (* /*MinorOpcodeProc*/)( +#if NeedNestedPrototypes + ClientPtr /*client*/ +#endif + ) +#endif /* NeedFunctionPrototypes */ +); + +extern Bool AddExtensionAlias( +#if NeedFunctionPrototypes + char* /*alias*/, + ExtensionEntry * /*extension*/ +#endif +); + +extern ExtensionLookupProc LookupProc( +#if NeedFunctionPrototypes + char* /*name*/, + GCPtr /*pGC*/ +#endif +); + +extern Bool RegisterProc( +#if NeedFunctionPrototypes + char* /*name*/, + GCPtr /*pGC*/, + ExtensionLookupProc /*proc*/ +#endif +); + +extern Bool RegisterScreenProc( +#if NeedFunctionPrototypes + char* /*name*/, + ScreenPtr /*pScreen*/, + ExtensionLookupProc /*proc*/ +#endif +); + +extern void DeclareExtensionSecurity( +#if NeedFunctionPrototypes + char * /*extname*/, + Bool /*secure*/ +#endif +); + +#endif /* EXTENSIONSTRUCT_H */ + |