X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_getch.c;h=38537591afc0ab8bda04ed5ec382ba0292453584;hp=e0d1803faea280095a922f73652754983c832849;hb=fae162795e065e5901068152e91f2962b6b247f3;hpb=d4ff840fddef2f6deb4a3daeb26d398a93b58dd2;ds=sidebyside diff --git a/ncurses/base/lib_getch.c b/ncurses/base/lib_getch.c index e0d1803f..38537591 100644 --- a/ncurses/base/lib_getch.c +++ b/ncurses/base/lib_getch.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2009,2010 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 1.120 2010/08/28 20:58:29 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. */ @@ -133,37 +154,60 @@ check_mouse_activity(SCREEN *sp, int delay EVENTLIST_2nd(_nc_eventlist * evl)) int rc; #ifdef USE_TERM_DRIVER - rc = TCBOf(sp)->drv->testmouse(TCBOf(sp), delay); -#else -#if USE_SYSMOUSE + TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp); + rc = TCBOf(sp)->drv->td_testmouse(TCBOf(sp), delay EVENTLIST_2nd(evl)); +# if defined(EXP_WIN32_DRIVER) + /* if we emulate terminfo on console, we have to use the console routine */ + if (IsTermInfoOnConsole(sp)) { + 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 /* !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; } static NCURSES_INLINE int fifo_peek(SCREEN *sp) { - int ch = sp->_fifo[peek]; + int ch = (peek >= 0) ? sp->_fifo[peek] : ERR; TR(TRACE_IEVENT, ("peeking at %d", peek)); p_inc(); @@ -173,15 +217,16 @@ fifo_peek(SCREEN *sp) static NCURSES_INLINE int fifo_pull(SCREEN *sp) { - int ch; - ch = sp->_fifo[head]; + int ch = (head >= 0) ? sp->_fifo[head] : ERR; + TR(TRACE_IEVENT, ("pulling %s from %d", _nc_tracechar(sp, ch), head)); if (peek == head) { h_inc(); peek = head; - } else + } else { h_inc(); + } #ifdef TRACE if (USE_TRACEF(TRACE_IEVENT)) { @@ -200,14 +245,9 @@ fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) int mask = 0; (void) mask; - if (tail == -1) + 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 @@ -256,46 +296,65 @@ fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) ch = KEY_MOUSE; n = 1; } else +#endif +#if USE_KLIBC_KBD + if (NC_ISATTY(sp->_ifd) && sp->_cbreak) { + ch = _read_kbd(0, 1, !sp->_raw); + n = (ch == -1) ? -1 : 1; + sp->_extended_key = (ch == 0); + } else #endif { /* Can block... */ -#ifdef USE_TERM_DRIVER +#if defined(USE_TERM_DRIVER) int buf; - n = CallDriver_1(sp, read, &buf); +# 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, + _nc_get_handle(sp->_ifd), + &buf); + else +# 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 - n = read(sp->_ifd, &c2, 1); +#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; @@ -325,7 +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) @@ -391,7 +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)); @@ -431,11 +490,11 @@ _nc_wgetch(WINDOW *win, /* ungetch in reverse order */ #ifdef NCURSES_WGETCH_EVENTS rc = recur_wgetnstr(win, buf); - if (rc != KEY_EVENT) + if (rc != KEY_EVENT && rc != ERR) safe_ungetch(sp, '\n'); #else - (void) recur_wgetnstr(win, buf); - safe_ungetch(sp, '\n'); + if (recur_wgetnstr(win, buf) != ERR) + safe_ungetch(sp, '\n'); #endif for (bufp = buf + strlen(buf); bufp > buf; bufp--) safe_ungetch(sp, bufp[-1]); @@ -502,7 +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)) @@ -569,7 +628,7 @@ _nc_wgetch(WINDOW *win, * * If carriage return is defined as a function key in the * terminfo, e.g., kent, then Solaris may return either ^J (or ^M - * if nonl() is set) or KEY_ENTER depending on the echo() mode. + * if nonl() is set) or KEY_ENTER depending on the echo() mode. * We echo before translating carriage return based on nonl(), * since the visual result simply moves the cursor to column 0. * @@ -614,7 +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) @@ -657,11 +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")); @@ -709,10 +768,11 @@ kgetch(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) if (ptr->value != 0) { /* sequence terminated */ TR(TRACE_IEVENT, ("end of sequence")); - if (peek == tail) + if (peek == tail) { fifo_clear(sp); - else + } else { head = peek; + } return (ptr->value); }