X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_getch.c;h=38537591afc0ab8bda04ed5ec382ba0292453584;hp=53e2c05669655db469db7870511be88268688d5f;hb=fae162795e065e5901068152e91f2962b6b247f3;hpb=d129a54c07c01d853ead291e5bef7fe978094f2d diff --git a/ncurses/base/lib_getch.c b/ncurses/base/lib_getch.c index 53e2c056..38537591 100644 --- a/ncurses/base/lib_getch.c +++ b/ncurses/base/lib_getch.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc. * + * Copyright 2018-2019,2020 Thomas E. Dickey * + * Copyright 1998-2015,2016 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -40,9 +41,10 @@ ** */ +#define NEED_KEY_EVENT #include -MODULE_ID("$Id: lib_getch.c,v 1.130 2014/05/03 20:49:50 tom Exp $") +MODULE_ID("$Id: lib_getch.c,v 1.141 2020/09/05 22:50:47 tom Exp $") #include @@ -69,16 +71,20 @@ NCURSES_EXPORT(int) NCURSES_SP_NAME(set_escdelay) (NCURSES_SP_DCLx int value) { int code = OK; -#if USE_REENTRANT - if (SP_PARM) { - SET_ESCDELAY(value); - } else { + if (value < 0) { code = ERR; - } + } else { +#if USE_REENTRANT + if (SP_PARM) { + SET_ESCDELAY(value); + } else { + code = ERR; + } #else - (void) SP_PARM; - ESCDELAY = value; + (void) SP_PARM; + ESCDELAY = value; #endif + } return code; } @@ -87,12 +93,16 @@ NCURSES_EXPORT(int) set_escdelay(int value) { int code; + if (value < 0) { + code = ERR; + } else { #if USE_REENTRANT - code = NCURSES_SP_NAME(set_escdelay) (CURRENT_SCREEN, value); + code = NCURSES_SP_NAME(set_escdelay) (CURRENT_SCREEN, value); #else - ESCDELAY = value; - code = OK; + ESCDELAY = value; + code = OK; #endif + } return code; } #endif @@ -124,6 +134,17 @@ _nc_use_meta(WINDOW *win) return (sp ? sp->_use_meta : 0); } +#ifdef USE_TERM_DRIVER +# if defined(_NC_WINDOWS) && !defined(EXP_WIN32_DRIVER) +static HANDLE +_nc_get_handle(int fd) +{ + intptr_t value = _get_osfhandle(fd); + return (HANDLE) value; +} +# endif +#endif + /* * Check for mouse activity, returning nonzero if we find any. */ @@ -135,37 +156,51 @@ check_mouse_activity(SCREEN *sp, int delay EVENTLIST_2nd(_nc_eventlist * evl)) #ifdef USE_TERM_DRIVER TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp); rc = TCBOf(sp)->drv->td_testmouse(TCBOf(sp), delay EVENTLIST_2nd(evl)); -# ifdef __MINGW32__ +# if defined(EXP_WIN32_DRIVER) /* if we emulate terminfo on console, we have to use the console routine */ if (IsTermInfoOnConsole(sp)) { - HANDLE fd = (HANDLE) _get_osfhandle(sp->_ifd); + rc = _nc_console_testmouse(sp, + _nc_console_handle(sp->_ifd), + delay EVENTLIST_2nd(evl)); + } else +# elif defined(_NC_WINDOWS) + /* if we emulate terminfo on console, we have to use the console routine */ + if (IsTermInfoOnConsole(sp)) { + HANDLE fd = _nc_get_handle(sp->_ifd); rc = _nc_mingw_testmouse(sp, fd, delay EVENTLIST_2nd(evl)); } else # endif rc = TCB->drv->td_testmouse(TCB, delay EVENTLIST_2nd(evl)); -#else -#if USE_SYSMOUSE +#else /* !USE_TERM_DRIVER */ +# if USE_SYSMOUSE if ((sp->_mouse_type == M_SYSMOUSE) && (sp->_sysmouse_head < sp->_sysmouse_tail)) { rc = TW_MOUSE; } else -#endif +# endif { +# if defined(EXP_WIN32_DRIVER) + rc = _nc_console_testmouse(sp, + _nc_console_handle(sp->_ifd), + delay + EVENTLIST_2nd(evl)); +# else rc = _nc_timed_wait(sp, TWAIT_MASK, delay, (int *) 0 EVENTLIST_2nd(evl)); -#if USE_SYSMOUSE +# endif +# if USE_SYSMOUSE if ((sp->_mouse_type == M_SYSMOUSE) && (sp->_sysmouse_head < sp->_sysmouse_tail) && (rc == 0) && (errno == EINTR)) { rc |= TW_MOUSE; } -#endif +# endif } -#endif +#endif /* USE_TERM_DRIVER */ return rc; } @@ -213,11 +248,6 @@ fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) if (tail < 0) return ERR; -#ifdef HIDE_EINTR - again: - errno = 0; -#endif - #ifdef NCURSES_WGETCH_EVENTS if (evl #if USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE @@ -275,51 +305,56 @@ fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) } else #endif { /* Can block... */ -#ifdef USE_TERM_DRIVER +#if defined(USE_TERM_DRIVER) int buf; -#ifdef __MINGW32__ +# if defined(EXP_WIN32_DRIVER) + if (NC_ISATTY(sp->_ifd) && IsTermInfoOnConsole(sp) && sp->_cbreak) { +# if USE_PTHREADS_EINTR + if ((pthread_self) && (pthread_kill) && (pthread_equal)) + _nc_globals.read_thread = pthread_self(); +# endif + n = _nc_console_read(sp, + _nc_console_handle(sp->_ifd), + &buf); +# if USE_PTHREADS_EINTR + _nc_globals.read_thread = 0; +# endif + } else +# elif defined(_NC_WINDOWS) if (NC_ISATTY(sp->_ifd) && IsTermInfoOnConsole(sp) && sp->_cbreak) n = _nc_mingw_console_read(sp, - (HANDLE) _get_osfhandle(sp->_ifd), + _nc_get_handle(sp->_ifd), &buf); else -#endif +# endif /* EXP_WIN32_DRIVER */ n = CallDriver_1(sp, td_read, &buf); ch = buf; -#else +#else /* !USE_TERM_DRIVER */ +#if defined(EXP_WIN32_DRIVER) + int buf; +#endif unsigned char c2 = 0; -# if USE_PTHREADS_EINTR -# if USE_WEAK_SYMBOLS +#if USE_PTHREADS_EINTR +#if USE_WEAK_SYMBOLS if ((pthread_self) && (pthread_kill) && (pthread_equal)) -# endif +#endif _nc_globals.read_thread = pthread_self(); -# endif +#endif +#if defined(EXP_WIN32_DRIVER) + n = _nc_console_read(sp, + _nc_console_handle(sp->_ifd), + &buf); + c2 = buf; +#else n = (int) read(sp->_ifd, &c2, (size_t) 1); +#endif #if USE_PTHREADS_EINTR _nc_globals.read_thread = 0; #endif ch = c2; -#endif +#endif /* USE_TERM_DRIVER */ } -#ifdef HIDE_EINTR - /* - * Under System V curses with non-restarting signals, getch() returns - * with value ERR when a handled signal keeps it from completing. - * If signals restart system calls, OTOH, the signal is invisible - * except to its handler. - * - * We don't want this difference to show. This piece of code - * tries to make it look like we always have restarting signals. - */ - if (n <= 0 && errno == EINTR -# if USE_PTHREADS_EINTR - && (_nc_globals.have_sigwinch == 0) -# endif - ) - goto again; -#endif - if ((n == -1) || (n == 0)) { TR(TRACE_IEVENT, ("read(%d,&ch,1)=%d, errno=%d", sp->_ifd, n, errno)); ch = ERR; @@ -349,7 +384,7 @@ fifo_clear(SCREEN *sp) tail = peek = 0; } -static int kgetch(SCREEN *EVENTLIST_2nd(_nc_eventlist * evl)); +static int kgetch(SCREEN *, bool EVENTLIST_2nd(_nc_eventlist *)); static void recur_wrefresh(WINDOW *win) @@ -415,7 +450,7 @@ _nc_wgetch(WINDOW *win, int ch; int rc = 0; #ifdef NCURSES_WGETCH_EVENTS - long event_delay = -1; + int event_delay = -1; #endif T((T_CALLED("_nc_wgetch(%p)"), (void *) win)); @@ -526,7 +561,7 @@ _nc_wgetch(WINDOW *win, int runcount = 0; do { - ch = kgetch(sp EVENTLIST_2nd(evl)); + ch = kgetch(sp, win->_notimeout EVENTLIST_2nd(evl)); if (ch == KEY_MOUSE) { ++runcount; if (sp->_mouse_inline(sp)) @@ -638,7 +673,7 @@ wgetch_events(WINDOW *win, _nc_eventlist * evl) int code; int value; - T((T_CALLED("wgetch_events(%p,%p)"), win, evl)); + T((T_CALLED("wgetch_events(%p,%p)"), (void *) win, (void *) evl)); code = _nc_wgetch(win, &value, _nc_use_meta(win) @@ -681,11 +716,11 @@ wgetch(WINDOW *win) */ static int -kgetch(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) +kgetch(SCREEN *sp, bool forever EVENTLIST_2nd(_nc_eventlist * evl)) { TRIES *ptr; int ch = 0; - int timeleft = GetEscdelay(sp); + int timeleft = forever ? 9999999 : GetEscdelay(sp); TR(TRACE_IEVENT, ("kgetch() called"));