X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_getch.c;h=66c9f87e57d617efa80f0c3da0b3529839e921ae;hp=e228355a019ea38a9bd1aaac92a471a0698ff4f9;hb=119b5a6788c26bf7dcc99fcfd54e072946352a93;hpb=26522e4669dbf45cba32138b5d81c6c292e88e60 diff --git a/ncurses/base/lib_getch.c b/ncurses/base/lib_getch.c index e228355a..66c9f87e 100644 --- a/ncurses/base/lib_getch.c +++ b/ncurses/base/lib_getch.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. * + * Copyright (c) 1998-2018,2019 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 * @@ -42,26 +42,26 @@ #include -MODULE_ID("$Id: lib_getch.c,v 1.103 2009/05/30 15:50:47 tom Exp $") +MODULE_ID("$Id: lib_getch.c,v 1.138 2019/11/03 00:11:16 tom Exp $") #include #if USE_REENTRANT -#define GetEscdelay(sp) (sp)->_ESCDELAY +#define GetEscdelay(sp) *_nc_ptr_Escdelay(sp) +NCURSES_EXPORT(int) +NCURSES_PUBLIC_VAR(ESCDELAY) (void) +{ + return *(_nc_ptr_Escdelay(CURRENT_SCREEN)); +} + NCURSES_EXPORT(int *) _nc_ptr_Escdelay(SCREEN *sp) { return ptrEscdelay(sp); } -NCURSES_EXPORT(int) -NCURSES_PUBLIC_VAR(ESCDELAY) (void) -{ - return *_nc_ptr_Escdelay(CURRENT_SCREEN); -} #else #define GetEscdelay(sp) ESCDELAY -NCURSES_EXPORT_VAR (int) - ESCDELAY = 1000; /* max interval betw. chars in funkeys, in millisecs */ +NCURSES_EXPORT_VAR(int) ESCDELAY = 1000; #endif #if NCURSES_EXT_FUNCS @@ -69,16 +69,20 @@ NCURSES_EXPORT(int) NCURSES_SP_NAME(set_escdelay) (NCURSES_SP_DCLx int value) { int code = OK; -#if USE_REENTRANT - if (SP_PARM) { - SP_PARM->_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; } @@ -86,7 +90,37 @@ NCURSES_SP_NAME(set_escdelay) (NCURSES_SP_DCLx int value) NCURSES_EXPORT(int) set_escdelay(int value) { - return NCURSES_SP_NAME(set_escdelay) (CURRENT_SCREEN, value); + int code; + if (value < 0) { + code = ERR; + } else { +#if USE_REENTRANT + code = NCURSES_SP_NAME(set_escdelay) (CURRENT_SCREEN, value); +#else + ESCDELAY = value; + code = OK; +#endif + } + return code; +} +#endif +#endif /* NCURSES_EXT_FUNCS */ + +#if NCURSES_EXT_FUNCS +NCURSES_EXPORT(int) +NCURSES_SP_NAME(get_escdelay) (NCURSES_SP_DCL0) +{ +#if !USE_REENTRANT + (void) SP_PARM; +#endif + return GetEscdelay(SP_PARM); +} + +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(int) +get_escdelay(void) +{ + return NCURSES_SP_NAME(get_escdelay) (CURRENT_SCREEN); } #endif #endif /* NCURSES_EXT_FUNCS */ @@ -98,10 +132,15 @@ _nc_use_meta(WINDOW *win) return (sp ? sp->_use_meta : 0); } -#ifdef NCURSES_WGETCH_EVENTS -#define TWAIT_MASK (TW_ANY | TW_EVENT) -#else -#define TWAIT_MASK TW_ANY +#ifdef USE_TERM_DRIVER +# ifdef _WIN32 +static HANDLE +_nc_get_handle(int fd) +{ + intptr_t value = _get_osfhandle(fd); + return (HANDLE) value; +} +# endif #endif /* @@ -112,19 +151,38 @@ check_mouse_activity(SCREEN *sp, int delay EVENTLIST_2nd(_nc_eventlist * evl)) { int rc; +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp); + rc = TCBOf(sp)->drv->td_testmouse(TCBOf(sp), delay EVENTLIST_2nd(evl)); +# ifdef _WIN32 + /* 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 if ((sp->_mouse_type == M_SYSMOUSE) && (sp->_sysmouse_head < sp->_sysmouse_tail)) { - return 2; - } + rc = TW_MOUSE; + } else #endif - rc = _nc_timed_wait(sp, TWAIT_MASK, delay, (int *) 0 EVENTLIST_2nd(evl)); + { + rc = _nc_timed_wait(sp, + TWAIT_MASK, + delay, + (int *) 0 + EVENTLIST_2nd(evl)); #if USE_SYSMOUSE - if ((sp->_mouse_type == M_SYSMOUSE) - && (sp->_sysmouse_head < sp->_sysmouse_tail) - && (rc == 0) - && (errno == EINTR)) { - rc |= TW_MOUSE; + if ((sp->_mouse_type == M_SYSMOUSE) + && (sp->_sysmouse_head < sp->_sysmouse_tail) + && (rc == 0) + && (errno == EINTR)) { + rc |= TW_MOUSE; + } +#endif } #endif return rc; @@ -133,7 +191,7 @@ check_mouse_activity(SCREEN *sp, int delay EVENTLIST_2nd(_nc_eventlist * evl)) 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(); @@ -143,15 +201,16 @@ 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)) { @@ -170,14 +229,9 @@ 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 @@ -218,26 +272,49 @@ fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) ch = KEY_MOUSE; n = 1; } else +#endif +#ifdef USE_TERM_DRIVER + if ((sp->_mouse_type == M_TERM_DRIVER) + && (sp->_drv_mouse_head < sp->_drv_mouse_tail)) { + sp->_mouse_event(sp); + 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 + int buf; +#ifdef _WIN32 + if (NC_ISATTY(sp->_ifd) && IsTermInfoOnConsole(sp) && sp->_cbreak) + n = _nc_mingw_console_read(sp, + _nc_get_handle(sp->_ifd), + &buf); + else +#endif + n = CallDriver_1(sp, td_read, &buf); + ch = buf; +#else unsigned char c2 = 0; - n = read(sp->_ifd, &c2, 1); +# if USE_PTHREADS_EINTR +# if USE_WEAK_SYMBOLS + if ((pthread_self) && (pthread_kill) && (pthread_equal)) +# endif + _nc_globals.read_thread = pthread_self(); +# endif + n = (int) read(sp->_ifd, &c2, (size_t) 1); +#if USE_PTHREADS_EINTR + _nc_globals.read_thread = 0; +#endif ch = c2; - } - -#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) - goto again; #endif + } if ((n == -1) || (n == 0)) { TR(TRACE_IEVENT, ("read(%d,&ch,1)=%d, errno=%d", sp->_ifd, n, errno)); @@ -268,7 +345,7 @@ 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) @@ -326,17 +403,18 @@ recur_wgetnstr(WINDOW *win, char *buf) NCURSES_EXPORT(int) _nc_wgetch(WINDOW *win, - unsigned long *result, + int *result, int use_meta EVENTLIST_2nd(_nc_eventlist * evl)) { SCREEN *sp; int ch; + int rc = 0; #ifdef NCURSES_WGETCH_EVENTS - long event_delay = -1; + int event_delay = -1; #endif - T((T_CALLED("_nc_wgetch(%p)"), win)); + T((T_CALLED("_nc_wgetch(%p)"), (void *) win)); *result = 0; @@ -367,17 +445,18 @@ _nc_wgetch(WINDOW *win, !sp->_cbreak && !sp->_called_wgetch) { char buf[MAXCOLUMNS], *bufp; - int rc; TR(TRACE_IEVENT, ("filling queue in cooked mode")); - rc = recur_wgetnstr(win, buf); - /* ungetch in reverse order */ #ifdef NCURSES_WGETCH_EVENTS - if (rc != KEY_EVENT) -#endif + rc = recur_wgetnstr(win, buf); + if (rc != KEY_EVENT && rc != ERR) + safe_ungetch(sp, '\n'); +#else + if (recur_wgetnstr(win, buf) != ERR) safe_ungetch(sp, '\n'); +#endif for (bufp = buf + strlen(buf); bufp > buf; bufp--) safe_ungetch(sp, bufp[-1]); @@ -399,7 +478,6 @@ _nc_wgetch(WINDOW *win, if (win->_notimeout || (win->_delay >= 0) || (sp->_cbreak > 1)) { if (head == -1) { /* fifo is empty */ int delay; - int rc; TR(TRACE_IEVENT, ("timed delay in wgetch()")); if (sp->_cbreak > 1) @@ -423,7 +501,7 @@ _nc_wgetch(WINDOW *win, } #endif if (!rc) { - returnCode(ERR); + goto check_sigwinch; } } /* else go on to read data available */ @@ -442,10 +520,9 @@ _nc_wgetch(WINDOW *win, * increase the wait with mouseinterval(). */ int runcount = 0; - int rc = 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)) @@ -485,12 +562,19 @@ _nc_wgetch(WINDOW *win, } if (ch == ERR) { + check_sigwinch: #if USE_SIZECHANGE if (_nc_handle_sigwinch(sp)) { _nc_update_screensize(sp); /* resizeterm can push KEY_RESIZE */ if (cooked_key_in_fifo()) { *result = fifo_pull(sp); + /* + * Get the ERR from queue -- it is from WINCH, + * so we should take it out, the "error" is handled. + */ + if (fifo_peek(sp) == -1) + fifo_pull(sp); returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK); } } @@ -505,7 +589,7 @@ _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. * @@ -517,7 +601,7 @@ _nc_wgetch(WINDOW *win, * cursor to the left. */ if (sp->_echo && !(win->_flags & _ISPAD)) { - chtype backup = (ch == KEY_BACKSPACE) ? '\b' : ch; + chtype backup = (chtype) ((ch == KEY_BACKSPACE) ? '\b' : ch); if (backup < KEY_MIN) wechochar(win, backup); } @@ -548,9 +632,9 @@ NCURSES_EXPORT(int) wgetch_events(WINDOW *win, _nc_eventlist * evl) { int code; - unsigned long value; + 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) @@ -565,9 +649,9 @@ NCURSES_EXPORT(int) wgetch(WINDOW *win) { int code; - unsigned long value; + int value; - T((T_CALLED("wgetch(%p)"), win)); + T((T_CALLED("wgetch(%p)"), (void *) win)); code = _nc_wgetch(win, &value, _nc_use_meta(win) @@ -593,11 +677,11 @@ 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")); @@ -641,14 +725,15 @@ kgetch(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl)) break; } TR(TRACE_IEVENT, ("ptr=%p, ch=%d, value=%d", - ptr, ptr->ch, ptr->value)); + (void *) ptr, ptr->ch, ptr->value)); 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); }