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-rw-r--r--Src/builtin.c90
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) {