Net2/usr/src/contrib/isode/others/X/client/Xlibint.h
#include <X11/copyright.h>
/* $XConsortium: Xlibint.h,v 11.61 88/09/06 16:09:16 jim Exp $ */
/* Copyright 1984, 1985, 1987 Massachusetts Institute of Technology */
/*
* XlibInternal.h - Header definition and support file for the internal
* support routines (XlibInternal) used by the C subroutine interface
* library (Xlib) to the X Window System.
*
* Warning, there be dragons here....
*/
#ifndef NEED_EVENTS
#define _XEVENT_
#endif
#ifdef CRAY
#ifndef __TYPES__
#define __TYPES__
#include <sys/types.h> /* forgot to protect it... */
#endif /* __TYPES__ */
#else
#include <sys/types.h>
#endif /* CRAY */
/*
* define the following if you want the Data macro to be a procedure instead
*/
#if defined(CRAY)
#define DataRoutineIsProcedure
#endif /* CRAY */
#include "Xlib.h"
#include <X11/Xproto.h>
#include "Xlibos.h"
#include <errno.h>
#ifndef NULL
#define NULL 0
#endif
#define LOCKED 1
#define UNLOCKED 0
extern int errno; /* Internal system error number. */
extern void bcopy();
extern (*_XIOErrorFunction)(); /* X system error reporting routine. */
extern (*_XErrorFunction)(); /* X_Error event reporting routine. */
extern char *_XAllocScratch(); /* fast memory allocator */
extern Visual *_XVIDtoVisual(); /* given visual id, find structure */
#ifndef BUFSIZE
#define BUFSIZE 2048 /* X output buffer size. */
#endif
#ifndef EPERBATCH
#define EPERBATCH 8 /* when batching, how many elements */
#endif
#ifndef CURSORFONT
#define CURSORFONT "cursor" /* standard cursor fonts */
#endif
/*
* X Protocol packetizing macros.
*/
/* Need to start requests on 64 bit word boundries
* on a CRAY computer so add a NoOp (127) if needed.
* A character pointer on a CRAY computer will be non-zero
* after shifting right 61 bits of it is not pointing to
* a word boundary.
*/
#ifdef WORD64
#define WORD64ALIGN if ((long)dpy->bufptr >> 61) {\
dpy->last_req = dpy->bufptr;\
*(dpy->bufptr) = X_NoOperation;\
*(dpy->bufptr+1) = 0;\
*(dpy->bufptr+2) = 0;\
*(dpy->bufptr+3) = 1;\
dpy->request += 1;\
dpy->bufptr += 4;\
}
#else /* else does not require alignment on 64-bit boundaries */
#define WORD64ALIGN
#endif /* WORD64 */
/*
* GetReq - Get the next avilable X request packet in the buffer and
* return it.
*
* "name" is the name of the request, e.g. CreatePixmap, OpenFont, etc.
* "req" is the name of the request pointer.
*
*/
#if defined(__STDC__) && !defined(UNIXCPP)
#define GetReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x##name##Req)) > dpy->bufmax)\
_XFlush(dpy);\
req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = (SIZEOF(x##name##Req))>>2;\
dpy->bufptr += SIZEOF(x##name##Req);\
dpy->request++
#else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
#define GetReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x/**/name/**/Req)) > dpy->bufmax)\
_XFlush(dpy);\
req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = (SIZEOF(x/**/name/**/Req))>>2;\
dpy->bufptr += SIZEOF(x/**/name/**/Req);\
dpy->request++
#endif
/* GetReqExtra is the same as GetReq, but allocates "n" additional
bytes after the request. "n" must be a multiple of 4! */
#if defined(__STDC__) && !defined(UNIXCPP)
#define GetReqExtra(name, n, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(*req) + n) > dpy->bufmax)\
_XFlush(dpy);\
req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = (SIZEOF(*req) + n)>>2;\
dpy->bufptr += SIZEOF(*req) + n;\
dpy->request++
#else
#define GetReqExtra(name, n, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x/**/name/**/Req) + n) > dpy->bufmax)\
_XFlush(dpy);\
req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = (SIZEOF(x/**/name/**/Req) + n)>>2;\
dpy->bufptr += SIZEOF(x/**/name/**/Req) + n;\
dpy->request++
#endif
/*
* GetResReq is for those requests that have a resource ID
* (Window, Pixmap, GContext, etc.) as their single argument.
* "rid" is the name of the resource.
*/
#if defined(__STDC__) && !defined(UNIXCPP)
#define GetResReq(name, rid, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xResourceReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xResourceReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = 2;\
req->id = (rid);\
dpy->bufptr += SIZEOF(xResourceReq);\
dpy->request++
#else
#define GetResReq(name, rid, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xResourceReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xResourceReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = 2;\
req->id = (rid);\
dpy->bufptr += SIZEOF(xResourceReq);\
dpy->request++
#endif
/*
* GetEmptyReq is for those requests that have no arguments
* at all.
*/
#if defined(__STDC__) && !defined(UNIXCPP)
#define GetEmptyReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_##name;\
req->length = 1;\
dpy->bufptr += SIZEOF(xReq);\
dpy->request++
#else
#define GetEmptyReq(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(xReq)) > dpy->bufmax)\
_XFlush(dpy);\
req = (xReq *) (dpy->last_req = dpy->bufptr);\
req->reqType = X_/**/name;\
req->length = 1;\
dpy->bufptr += SIZEOF(xReq);\
dpy->request++
#endif
#define SyncHandle() \
if (dpy->synchandler) (*dpy->synchandler)(dpy)
#define FlushGC(dpy, gc) \
if ((gc)->dirty) _XFlushGCCache((dpy), (gc))
/*
* Data - Place data in the buffer and pad the end to provide
* 32 bit word alignment. Transmit if the buffer fills.
*
* "dpy" is a pointer to a Display.
* "data" is a pinter to a data buffer.
* "len" is the length of the data buffer.
* we can presume buffer less than 2^16 bytes, so bcopy can be used safely.
*/
#ifdef DataRoutineIsProcedure
extern void Data();
#else
#define Data(dpy, data, len) \
if (dpy->bufptr + (len) <= dpy->bufmax) {\
bcopy(data, dpy->bufptr, (int)len);\
dpy->bufptr += ((len) + 3) & ~3;\
} else\
_XSend(dpy, data, len)
#endif /* DataRoutineIsProcedure */
/* Allocate bytes from the buffer. No padding is done, so if
* the length is not a multiple of 4, the caller must be
* careful to leave the buffer aligned after sending the
* current request.
*
* "type" is the type of the pointer being assigned to.
* "ptr" is the pointer being assigned to.
* "n" is the number of bytes to allocate.
*
* Example:
* xTextElt *elt;
* BufAlloc (xTextElt *, elt, nbytes)
*/
#define BufAlloc(type, ptr, n) \
if (dpy->bufptr + (n) > dpy->bufmax) \
_XFlush (dpy); \
ptr = (type) dpy->bufptr; \
dpy->bufptr += (n);
/*
* provide emulation routines for smaller architectures
*/
#ifndef WORD64
#define Data16(dpy, data, len) Data((dpy), (char *)(data), (len))
#define Data32(dpy, data, len) Data((dpy), (char *)(data), (len))
#define _XRead16Pad(dpy, data, len) _XReadPad((dpy), (char *)(data), (len))
#define _XRead16(dpy, data, len) _XRead((dpy), (char *)(data), (len))
#define _XRead32(dpy, data, len) _XRead((dpy), (char *)(data), (len))
#endif /* not WORD64 */
#define PackData16(dpy,data,len) Data16 (dpy, data, len)
#define PackData32(dpy,data,len) Data32 (dpy, data, len)
/* Xlib manual is bogus */
#define PackData(dpy,data,len) PackData16 (dpy, data, len)
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define CI_NONEXISTCHAR 0x4000 /* required because QueryFont represents
a non-existant character with zero-value
metrics, but requires drivers to output
the default char in their place. */
#ifdef MUSTCOPY
/* a little bit of magic */
#define OneDataCard32(dpy,dstaddr,srcvar) \
{ dpy->bufptr -= 4; Data32 (dpy, (char *) &(srcvar), 4); }
#define STARTITERATE(tpvar,type,start,endcond,decr) \
{ register char *cpvar; \
for (cpvar = (char *) start; endcond; cpvar = NEXTPTR(cpvar,type), decr) { \
type dummy; bcopy (cpvar, (char *) &dummy, SIZEOF(type)); \
tpvar = (type *) cpvar;
#define ENDITERATE }}
#else
/* srcvar must be a variable for large architecture version */
#define OneDataCard32(dpy,dstaddr,srcvar) \
{ *(unsigned long *)(dstaddr) = (srcvar); }
#define STARTITERATE(tpvar,type,start,endcond,decr) \
for (tpvar = (type *) start; endcond; tpvar++, decr) {
#define ENDITERATE }
#endif /* MUSTCOPY - used machines whose C structs don't line up with proto */
#ifdef ISOCONN
extern int fd2family[MAXSOCKS];
extern int (*readfn[])();
extern int (*writefn[])();
extern int (*readvfn[])();
extern int (*writevfn[])();
extern int (*ioctlfn[])();
extern int (*closefn[])();
#endif /* ISOCONN */