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/*
* header file for file descriptor (FD) code
*
* James Peterson, 1987
*
* Copyright (C) 1987 MCC
*
* 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, and that the name of MCC not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. MCC makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* MCC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL MCC 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.
*
*/
/*
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
*
* 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 (including the next
* paragraph) 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 AUTHORS OR 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.
*
*/
#ifndef XSCOPE_FD_H
#define XSCOPE_FD_H
/*
the following structure remembers for each file descriptor its
state. In particular, we need to know if it is busy or free
and if it is in use, by whom.
*/
#ifdef USE_XTRANS
#define TRANS_CLIENT
#define TRANS_SERVER
#define X11_t
#include <X11/Xtrans/Xtrans.h>
#else
typedef void *XtransConnInfo;
#endif
#include <sys/select.h>
typedef int FD;
struct FDDescriptor {
Boolean Busy;
void (*InputHandler) (int);
void (*FlushHandler) (int);
#ifdef USE_XTRANS
XtransConnInfo trans_conn;
#endif
};
extern struct FDDescriptor *FDD; /* array of FD descriptors */
extern int MaxFD; /* maximum number of FD's possible */
extern int nFDsInUse; /* number of FD's actually in use */
extern fd_set ReadDescriptors; /* bit map of FD's in use -- for select */
extern fd_set WriteDescriptors; /* bit map of write blocked FD's -- for select */
extern fd_set BlockedReadDescriptors; /* bit map of FD's blocked from reading */
extern int HighestFD; /* highest FD in use -- for select */
extern void InitializeFD(void);
extern void CloseFD(FD fd);
extern void UsingFD(FD fd, void (*Handler) (int), void (*FlushHandler) (int),
XtransConnInfo trans_conn);
extern void NotUsingFD(FD fd);
extern FD AcceptConnection(FD ConnectionSocket);
extern FD MakeConnection(const char *server, short port, int report,
XtransConnInfo * trans_conn);
extern int MainLoop(void);
#ifdef USE_XTRANS
extern XtransConnInfo GetXTransConnInfo(FD fd);
#endif
#endif /* XSCOPE_FD_H */
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