diff options
Diffstat (limited to 'Src/builtin.c')
-rw-r--r-- | Src/builtin.c | 90 |
1 files changed, 1 insertions, 89 deletions
diff --git a/Src/builtin.c b/Src/builtin.c index 3b38c2674..7f8e90741 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -3361,94 +3361,6 @@ static int readfd; /* Read a character from readfd, or from the buffer zbuf. Return EOF on end of file/buffer. */ -/**/ -static int -read_poll(int *readchar, int polltty) -{ - int ret = 0; - long mode = -1; - char c; -#ifdef FIONREAD - int val; -#endif -#ifdef HAVE_SELECT - fd_set foofd; - struct timeval expire_tv; -#endif -#ifdef HAS_TIO - struct ttyinfo ti; -#endif - - -#if defined(HAS_TIO) && !defined(__CYGWIN__) - /* - * Under Solaris, at least, reading from the terminal in non-canonical - * mode requires that we use the VMIN mechanism to poll. Any attempt - * to check any other way, or to set the terminal to non-blocking mode - * and poll that way, fails; it will just for canonical mode input. - * We should probably use this mechanism if the user has set non-canonical - * mode, in which case testing here for isatty() and ~ICANON would be - * better than testing whether bin_read() set it, but for now we've got - * enough problems. - * - * Under Cygwin, you won't be surprised to here, this mechanism, - * although present, doesn't work, and we *have* to use ordinary - * non-blocking reads to find out if there is a character present - * in non-canonical mode. - * - * I am assuming Solaris is nearer the UNIX norm. This is not necessarily - * as plausible as it sounds, but it seems the right way to guess. - * pws 2000/06/26 - */ - if (polltty) { - gettyinfo(&ti); - ti.tio.c_cc[VMIN] = 0; - settyinfo(&ti); - } -#else - polltty = 0; -#endif -#ifdef HAVE_SELECT - if (!ret) { - expire_tv.tv_sec = expire_tv.tv_usec = 0; - FD_ZERO(&foofd); - FD_SET(readfd, &foofd); - if (select(readfd+1, (SELECT_ARG_2_T) &foofd, NULL, NULL, &expire_tv) - > 1) - ret = 1; - } -#else -#ifdef FIONREAD - if (!ret) { - ioctl(readfd, FIONREAD, (char *)&val); - if (val) - ret = 1; - } -#endif -#endif - - if (!ret) { - /* - * Final attempt: set non-blocking read and try to read a character. - * Praise Bill, this works under Cygwin (nothing else seems to). - */ - if ((polltty || setblock_fd(0, readfd, &mode)) - && read(readfd, &c, 1) > 0) { - *readchar = STOUC(c); - ret = 1; - } - if (mode != -1) - fcntl(readfd, F_SETFL, mode); - } -#ifdef HAS_TIO - if (polltty) { - ti.tio.c_cc[VMIN] = 1; - settyinfo(&ti); - } -#endif - return ret; -} - /* read: get a line of input, or (for compctl functions) return some * * useful data about the state of the editing line. The -E and -e * * options mean that the result should be sent to stdout. -e means, * @@ -3529,7 +3441,7 @@ bin_read(char *name, char **args, char *ops, int func) } else readfd = izle = 0; - if (ops['t'] && !read_poll(&readchar, keys && !zleactive)) { + if (ops['t'] && !read_poll(readfd, &readchar, keys && !zleactive)) { if (ops['k'] && !zleactive && !isem) settyinfo(&shttyinfo); if (haso) { |