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#ifndef _X11VNC_UTIL_H
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#define _X11VNC_UTIL_H
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/* -- util.h -- */
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extern int nfix(int i, int n);
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extern int nmin(int n, int m);
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extern int nmax(int n, int m);
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extern int nabs(int n);
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extern double dabs(double x);
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extern void lowercase(char *str);
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extern void uppercase(char *str);
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extern char *lblanks(char *str);
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extern void strzero(char *str);
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extern int scan_hexdec(char *str, unsigned long *num);
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extern int parse_geom(char *str, int *wp, int *hp, int *xp, int *yp, int W, int H);
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extern void set_env(char *name, char *value);
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extern char *bitprint(unsigned int st, int nbits);
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extern char *get_user_name(void);
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extern char *get_home_dir(void);
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extern char *get_shell(void);
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extern char *this_host(void);
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extern int match_str_list(char *str, char **list);
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extern char **create_str_list(char *cslist);
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extern double dtime(double *);
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extern double dtime0(double *);
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extern double dnow(void);
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extern double dnowx(void);
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extern double rnow(void);
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extern double rfac(void);
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extern void rfbPE(long usec);
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extern void rfbCFD(long usec);
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extern double rect_overlap(int x1, int y1, int x2, int y2, int X1, int Y1,
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int X2, int Y2);
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#define NONUL(x) ((x) ? (x) : "")
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/* XXX usleep(3) is not thread safe on some older systems... */
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extern struct timeval _mysleep;
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#define usleep2(x) \
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_mysleep.tv_sec = (x) / 1000000; \
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_mysleep.tv_usec = (x) % 1000000; \
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select(0, NULL, NULL, NULL, &_mysleep);
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#if !defined(X11VNC_USLEEP)
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#undef usleep
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#define usleep usleep2
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#endif
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/*
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* following is based on IsModifierKey in Xutil.h
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*/
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#define ismodkey(keysym) \
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((((KeySym)(keysym) >= XK_Shift_L) && ((KeySym)(keysym) <= XK_Hyper_R) && \
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((KeySym)(keysym) != XK_Caps_Lock) && ((KeySym)(keysym) != XK_Shift_Lock)))
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/*
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* Not sure why... but when threaded we have to mutex our X11 calls to
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* avoid XIO crashes.
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*/
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#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
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extern MUTEX(x11Mutex);
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#endif
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#define X_INIT INIT_MUTEX(x11Mutex)
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#if 1
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#define X_LOCK LOCK(x11Mutex)
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#define X_UNLOCK UNLOCK(x11Mutex)
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#else
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extern int hxl;
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#define X_LOCK fprintf(stderr, "*** X_LOCK**[%05d] %d%s\n", \
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__LINE__, hxl, hxl ? " BAD-PRE-LOCK":""); LOCK(x11Mutex); hxl = 1;
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#define X_UNLOCK fprintf(stderr, " x_unlock[%05d] %d%s\n", \
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__LINE__, hxl, !hxl ? " BAD-PRE-UNLOCK":""); UNLOCK(x11Mutex); hxl = 0;
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#endif
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#ifdef LIBVNCSERVER_HAVE_LIBPTHREAD
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extern MUTEX(scrollMutex);
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#endif
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#define SCR_LOCK if (use_threads) {LOCK(scrollMutex);}
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#define SCR_UNLOCK if (use_threads) {UNLOCK(scrollMutex);}
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#define SCR_INIT INIT_MUTEX(scrollMutex)
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#endif /* _X11VNC_UTIL_H */
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