extnsionst.h (4067B)
1 /*********************************************************** 2 3 Copyright 1987, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 21 Except as contained in this notice, the name of The Open Group shall not be 22 used in advertising or otherwise to promote the sale, use or other dealings 23 in this Software without prior written authorization from The Open Group. 24 25 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. 26 27 All Rights Reserved 28 29 Permission to use, copy, modify, and distribute this software and its 30 documentation for any purpose and without fee is hereby granted, 31 provided that the above copyright notice appear in all copies and that 32 both that copyright notice and this permission notice appear in 33 supporting documentation, and that the name of Digital not be 34 used in advertising or publicity pertaining to distribution of the 35 software without specific, written prior permission. 36 37 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 39 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 43 SOFTWARE. 44 45 ******************************************************************/ 46 47 #ifndef EXTENSIONSTRUCT_H 48 #define EXTENSIONSTRUCT_H 49 50 #include "dix.h" 51 #include "misc.h" 52 #include "screenint.h" 53 #include "extension.h" 54 #include "gc.h" 55 #include "privates.h" 56 57 typedef struct _ExtensionEntry { 58 int index; 59 void (*CloseDown) ( /* called at server shutdown */ 60 struct _ExtensionEntry * /* extension */ ); 61 const char *name; /* extension name */ 62 int base; /* base request number */ 63 int eventBase; 64 int eventLast; 65 int errorBase; 66 int errorLast; 67 void *extPrivate; 68 unsigned short (*MinorOpcode) ( /* called for errors */ 69 ClientPtr /* client */ ); 70 PrivateRec *devPrivates; 71 } ExtensionEntry; 72 73 /* 74 * The arguments may be different for extension event swapping functions. 75 * Deal with this by casting when initializing the event's EventSwapVector[] 76 * entries. 77 */ 78 typedef void (*EventSwapPtr) (xEvent *, xEvent *); 79 80 extern _X_EXPORT EventSwapPtr EventSwapVector[128]; 81 82 extern _X_EXPORT void 83 NotImplemented( /* FIXME: this may move to another file... */ 84 xEvent *, xEvent *) _X_NORETURN; 85 86 extern _X_EXPORT ExtensionEntry * 87 AddExtension(const char * /*name */ , 88 int /*NumEvents */ , 89 int /*NumErrors */ , 90 int (* /*MainProc */ )(ClientPtr /*client */ ), 91 int (* /*SwappedMainProc */ )(ClientPtr /*client */ ), 92 void (* /*CloseDownProc */ )(ExtensionEntry * /*extension */ ), 93 unsigned short (* /*MinorOpcodeProc */ )(ClientPtr /*client */ ) 94 ); 95 96 extern _X_EXPORT ExtensionEntry * 97 CheckExtension(const char *extname); 98 extern _X_EXPORT ExtensionEntry * 99 GetExtensionEntry(int major); 100 101 #endif /* EXTENSIONSTRUCT_H */