/* $XConsortium: pex_priv.h,v 5.6 94/04/17 20:42:16 rws Exp $ */ /*********************************************************** Copyright (c) 1989, 1990, 1991 X Consortium 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 X CONSORTIUM 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 X Consortium 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 X Consortium. Copyright 1989, 1990, 1991 by Sun Microsystems, Inc. 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 Sun Microsystems, not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SUN MICROSYSTEMS 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 PEX_INTERNAL_H #define PEX_INTERNAL_H #include #include #define NEED_REPLIES #include #include #include #include #include "PEX.h" #include "PEXproto.h" #include "pex_md.h" #ifdef CAT #undef CAT #endif #ifdef CAT3 #undef CAT3 #endif #if (__STDC__ && !defined(UNIXCPP)) || defined(ANSICPP) #define CAT(a,b) a##b #define CAT3(a,b,c) a##b##c #else #define CAT(a,b) a/**/b #define CAT3(a,b,c) a/**/b/**/c #endif /** Does compiler know about structure assignment?? (STRUCTASS is ** either defined or undefined in pex_md.h) **/ #ifdef STRUCTASS #define PEX_ASSIGN(a,b) a = b #else #define PEX_ASSIGN(a,b) \ { \ char *aptr = (char *) &(a); \ char *bptr = (char *) &(b); \ int n = sizeof(a); \ while( n-- ) \ *aptr++ = *bptr++; \ } #endif #ifndef DEBUG #define ASSERT(a) #else #define ASSERT(__assertion__) \ if (!(__assertion__)) { \ fprintf(stderr, "Assertion Failed: File %s, Line %d\n", \ __FILE__, __LINE__); \ fprintf(stderr, "Assertion: __assertion__\n\n"); \ } #endif /* DEBUG */ typedef char* Pointer; #define PEX_SCRATCH( _s, _size) \ ((_s)->scratch_size >= (_size) ? (_s)->scratch \ : PexGrowScratch( (_s), (unsigned)(_size))) #define PEX_OPCODE(_s) ((_s)->ext_codes->major_opcode) #define PADDING(n) ( ((n)%4 == 0) ? 0 : 4 - ((n)%4) ) #ifndef MIN #define MIN( a, b) (((a) < (b)) ? (a) : (b)) #endif #ifndef MAX #define MAX( a, b) (((a) > (b)) ? (a) : (b)) #endif #ifndef FABS #define FABS( f) (((f) < 0.0) ? -(f) : (f)) #endif typedef struct _Pex_srvr_info { Display *display; XExtCodes *ext_codes; /* from XInitExtension */ unsigned scratch_size; Pointer scratch; struct _Pex_srvr_info *next; } Pex_srvr_info; extern Pex_srvr_info *Pex_srvr_list; /* Utility functions */ extern Pex_srvr_info* PexEntryCheck(); extern Pointer PexGrowScratch(); extern void PexClearReply(); /* * PEX_REQUEST -- Get the next available X request packet in the buffer. * "name" is the name of the request. * "dpy" is the display pointer * "oc" is the PEX extension major opcode for the specified server * "req" is the request pointer. */ #define PEX_REQUEST(name,dpy,oc,req) \ if (((dpy)->bufptr + sizeof(CAT3(pex,name,Req))) > (dpy)->bufmax)\ _XFlush(dpy);\ (req) = (CAT3(pex,name,Req) *)((dpy)->last_req = (dpy)->bufptr);\ (req)->reqType = (oc);\ (req)->opcode = CAT(PEX_,name);\ (req)->length = (sizeof(CAT3(pex,name,Req)))>>2;\ (dpy)->bufptr += sizeof(CAT3(pex,name,Req));\ (dpy)->request++ /* * PEX_VARIABLE_REQUEST -- Similiar to PEX_REQUEST but allocates "n" * additional bytes after the request. * "n" must be a multiple of 4 !!!! */ #define PEX_VARIABLE_REQUEST(name,dpy,oc,n,req) \ if (((dpy)->bufptr + sizeof(CAT3(pex,name,Req))+(n)) > (dpy)->bufmax)\ _XFlush(dpy);\ (req) = (CAT3(pex,name,Req) *) ((dpy)->last_req = (dpy)->bufptr);\ (req)->reqType = (oc);\ (req)->opcode = CAT(PEX_,name);\ (req)->length = (sizeof(CAT3(pex,name,Req))+(n))>>2;\ (dpy)->bufptr += sizeof(CAT3(pex,name,Req))+(n);\ (dpy)->request++ /* PEX_VAR_REQUEST and PEX_LOAD_VAR_REQUEST_DATA are meant to be used as a * pair. The former "allocates" and loads the request structures; the * latter puts the data in the display buffer, performing multiple copies * and flushes until all the data has been loaded. This allows requests to * be larger than the display buffer size. */ typedef struct { int size; char *data; int padding; } Pex_data_vec; #define PEX_VAR_REQUEST(name,dpy,oc,n,req) \ if (((dpy)->bufptr + sizeof(CAT3(pex,name,Req))+(n)) > (dpy)->bufmax)\ _XFlush(dpy);\ (req) = (CAT3(pex,name,Req) *) ((dpy)->last_req = (dpy)->bufptr);\ (req)->reqType = (oc);\ (req)->opcode = CAT(PEX_,name);\ (req)->length = (sizeof(CAT3(pex,name,Req))+(n))>>2;\ (dpy)->bufptr += sizeof(CAT3(pex,name,Req));\ (dpy)->request++ #define PEX_LOAD_VAR_REQUEST_DATA(_dpy,_num,_vec) \ { int _todo, _avail; \ char *_dp; \ int _i; \ for ( _i = 0; _i < (_num); _i++ ) { \ _dp = (_vec)[_i].data; \ _todo = (_vec)[_i].size; \ while ( _todo > 0 ) { \ _avail = (_dpy)->bufmax - (_dpy)->bufptr; \ bcopy( _dp, (_dpy)->bufptr, MIN(_avail,_todo) ); \ (_dpy)->bufptr += MIN(_avail,_todo); \ (_dp) += MIN(_avail,_todo); \ _todo -= _avail; \ if ( _todo > 0 ) \ _XFlush( (_dpy) ); \ else \ (_dpy)->bufptr += (_vec)[_i].padding; \ } \ } \ } /* This function only for test and debug. */ #ifdef USE_LOAD_VAR_FUNC #define PEX_LOAD_VAR_REQUEST_DATA(a,b,c) pex_load_var_request_data(a,b,c); static void pex_load_var_request_data(_dpy,_num,_vec) Display *_dpy; int _num; Pex_data_vec *_vec; { int _todo, _avail; char *_dp; int _i; for ( _i = 0; _i < (_num); _i++ ) { _dp = (_vec)[_i].data; _todo = (_vec)[_i].size; while ( _todo > 0 ) { _avail = (_dpy)->bufmax - (_dpy)->bufptr; bcopy( _dp, (_dpy)->bufptr, MIN(_avail,_todo) ); (_dpy)->bufptr += MIN(_avail,_todo); (_dp) += MIN(_avail,_todo); _todo -= _avail; if ( _todo > 0 ) _XFlush( (_dpy) ); else (_dpy)->bufptr += (_vec)[_i].padding; } } } #endif /* * PEX_RESOURCE_ID_REQUEST -- used for requests that have * a resource ID as * their single argument. * "rid" is the name of the resource. */ #define PEX_RESOURCE_ID_REQUEST(name,dpy,oc,rid,req) \ if (((dpy)->bufptr + sizeof(pexResourceReq)) > (dpy)->bufmax) \ _XFlush(dpy);\ (req) = (pexResourceReq *) ((dpy)->last_req = (dpy)->bufptr);\ (req)->reqType = (oc); \ (req)->opcode = CAT(PEX_,name);\ (req)->length = 2;\ (req)->id = (rid);\ (dpy)->bufptr += sizeof(pexResourceReq);\ (dpy)->request++ /* * PEX_EMPTY_REQUEST -- used for requests that have no arguments at all. */ #define PEX_EMPTY_REQUEST(name,dpy,oc,req) \ if ((dpy->bufptr + sizeof(pexReq)) > dpy->bufmax) \ _XFlush(dpy); \ req = (pexReq *) (dpy->last_req = dpy->bufptr); \ req->reqType = api_globals.PEXReqCode; \ req->opcode = CAT(PEX_,name); \ req->length= 1; \ dpy->bufptr += sizeof(pexReq); \ dpy->request++ #define PEX_FP_FORMAT(_f) (_f) = PEXIeee_754_32 #define PEX_FORMATS(_r) \ { \ PEX_FP_FORMAT((_r)->fpFormat); \ } /* The SyncHandle macro in Xlibint.h counts on the display pointer being * named "dpy", this macro doesn't. */ #define PEX_SYNC_HANDLE(dpy) \ if (dpy->synchandler) (*dpy->synchandler)(dpy) #define PEX_RESOURCE_ID_NO_REPLY_FUNC(_request) \ int \ CAT(PEX,_request)(display, resource) \ Display *display; \ XID resource; \ { \ int status = 0; \ Pex_srvr_info *srvr; \ CAT3(pex,_request,Req) *req; \ \ LOCK_DISPLAY(display); \ if (srvr = PexEntryCheck(display, 1)) { \ PEX_RESOURCE_ID_REQUEST(_request, display, \ PEX_OPCODE(srvr), resource, req); \ status = 1; \ } \ UNLOCK_DISPLAY(display); \ PEX_SYNC_HANDLE(display); \ return status; \ } /* These two are defined to let us consistently use all caps for macros */ #define LOCK_DISPLAY(dpy) LockDisplay(dpy) #define UNLOCK_DISPLAY(dpy) UnlockDisplay(dpy) #endif