232 lines
6.9 KiB
C
232 lines
6.9 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#ifndef _OSDEP_H_
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#define _OSDEP_H_ 1
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#include <X11/Xdefs.h>
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#if defined(XDMCP) || defined(HASXDMAUTH)
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#include <X11/Xdmcp.h>
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#endif
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#include <limits.h>
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#include <stddef.h>
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#include <X11/Xos.h>
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#include <X11/Xmd.h>
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#include <X11/Xdefs.h>
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#ifndef __has_builtin
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# define __has_builtin(x) 0 /* Compatibility with older compilers */
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#endif
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/* If EAGAIN and EWOULDBLOCK are distinct errno values, then we check errno
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* for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX
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* systems are broken and return EWOULDBLOCK when they should return EAGAIN
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*/
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#ifndef WIN32
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# if (EAGAIN != EWOULDBLOCK)
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# define ETEST(err) (err == EAGAIN || err == EWOULDBLOCK)
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# else
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# define ETEST(err) (err == EAGAIN)
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# endif
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#else /* WIN32 The socket errorcodes differ from the normal errors */
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#define ETEST(err) (err == EAGAIN || err == WSAEWOULDBLOCK)
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#endif
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#if defined(XDMCP) || defined(HASXDMAUTH)
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typedef Bool (*ValidatorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
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typedef Bool (*GeneratorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
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typedef Bool (*AddAuthorFunc) (unsigned name_length, const char *name,
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unsigned data_length, char *data);
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#endif
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typedef struct _connectionInput *ConnectionInputPtr;
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typedef struct _connectionOutput *ConnectionOutputPtr;
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struct _osComm;
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typedef int (*OsFlushFunc) (ClientPtr who, struct _osComm * oc, char *extraBuf,
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int extraCount);
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typedef struct _osComm {
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int fd;
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ConnectionInputPtr input;
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ConnectionOutputPtr output;
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XID auth_id; /* authorization id */
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CARD32 conn_time; /* timestamp if not established, else 0 */
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struct _XtransConnInfo *trans_conn; /* transport connection object */
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int flags;
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} OsCommRec, *OsCommPtr;
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#define OS_COMM_GRAB_IMPERVIOUS 1
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#define OS_COMM_IGNORED 2
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extern int FlushClient(ClientPtr /*who */ ,
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OsCommPtr /*oc */ ,
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const void * /*extraBuf */ ,
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int /*extraCount */
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);
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extern void FreeOsBuffers(OsCommPtr /*oc */
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);
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void
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CloseDownFileDescriptor(OsCommPtr oc);
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#include "dix.h"
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#include "ospoll.h"
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extern struct ospoll *server_poll;
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Bool
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listen_to_client(ClientPtr client);
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extern Bool NewOutputPending;
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/* in access.c */
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extern Bool ComputeLocalClient(ClientPtr client);
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/* in auth.c */
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extern void GenerateRandomData(int len, char *buf);
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/* OsTimer functions */
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void TimerInit(void);
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Bool TimerForce(OsTimerPtr timer);
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#ifdef WIN32
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#include <X11/Xwinsock.h>
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struct utsname {
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char nodename[512];
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};
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static inline void uname(struct utsname *uts) {
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gethostname(uts->nodename, sizeof(uts->nodename));
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}
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const char *Win32TempDir(void);
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static inline void Fclose(void *f) { fclose(f); }
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static inline void *Fopen(const char *a, const char *b) { return fopen(a,b); }
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#else /* WIN32 */
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void *Popen(const char *, const char *);
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void *Fopen(const char *, const char *);
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int Fclose(void *f);
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int Pclose(void *f);
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#endif /* WIN32 */
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void AutoResetServer(int sig);
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/* clone fd so it gets out of our select mask */
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int os_move_fd(int fd);
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/* set signal mask - either on current thread or whole process,
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depending on whether multithreading is used */
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int xthread_sigmask(int how, const sigset_t *set, sigset_t *oldest);
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typedef void (*OsSigHandlerPtr) (int sig);
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/* install signal handler */
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OsSigHandlerPtr OsSignal(int sig, OsSigHandlerPtr handler);
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void OsInit(void);
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void OsCleanup(Bool);
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void OsVendorFatalError(const char *f, va_list args) _X_ATTRIBUTE_PRINTF(1, 0);
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void OsVendorInit(void);
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void OsBlockSignals(void);
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void OsReleaseSignals(void);
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void OsResetSignals(void);
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void OsAbort(void) _X_NORETURN;
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void AbortServer(void) _X_NORETURN;
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void MakeClientGrabPervious(ClientPtr client);
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void MakeClientGrabImpervious(ClientPtr client);
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int OnlyListenToOneClient(ClientPtr client);
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void ListenToAllClients(void);
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/* allow DDX to force using another clock */
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void ForceClockId(clockid_t forced_clockid);
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Bool WaitForSomething(Bool clients_are_ready);
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void CloseDownConnection(ClientPtr client);
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extern int LimitClients;
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extern Bool PartialNetwork;
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extern Bool CoreDump;
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extern Bool NoListenAll;
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extern Bool AllowByteSwappedClients;
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#if __has_builtin(__builtin_popcountl)
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# define Ones __builtin_popcountl
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#else
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/*
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* Count the number of bits set to 1 in a 32-bit word.
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* Algorithm from MIT AI Lab Memo 239: "HAKMEM", ITEM 169.
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* https://dspace.mit.edu/handle/1721.1/6086
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*/
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static inline int
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Ones(unsigned long mask)
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{
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unsigned long y;
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y = (mask >> 1) & 033333333333;
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y = mask - y - ((y >> 1) & 033333333333);
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return (((y + (y >> 3)) & 030707070707) % 077);
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}
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#endif
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#endif /* _OSDEP_H_ */
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